<<

¨kyF®k˜ –yžAkym˜ Classical Mechanics

(Introduction) T›dq› 1

T•r —Anh .As± T•r :An Xy ¨t˜ Ty›wy˜ Ty`ybW˜ r¡w\˜ Ÿy Ÿ› ‰bt ¨l§ Amy š¤AnF .˜ , •wk˜ T•r ,r˜ ªwqs˜ ,Ty˜ An¶Ak˜ .T•r˜ AbF rysf ‘dh Asž³ Ah`R¤ ¨t˜ A§r\nl˜ ¨§CAt˜ CwWt˜ :As’ T`C Y˜ Cwm˜ @¡ œysq Ÿkm§ œ§dq˜ rO`˜ Ÿ› Trtqm˜ ryFAft˜ L’AnnF :(free fall) r˜ ªwqs˜ • Ÿˆ §d˜ Ÿy•CA ¨ly˜A‹ wly˜A‹ šAmˆ T§A‹ Y˜ (TyžAžwy˜ ­CAS˜) . •wk˜ T•r T˜A`› d` A› Y˜ TyÐAl˜ Ÿ wyž wžA’ ¨§CAt˜ CwWt˜ ˜A`nF :(Newton’s laws of motion) Ÿ wyn˜ T•r˜ Ÿyžw’ • , A›z˜ :¨ Tlmtm˜ ¤ ,Ÿyžwq˜ £@¡ T‹Ay} Ahylˆ dmt` ¨t˜ œy¡Afml˜ .­wq˜ ¤ ,T•r˜ Tym• ,T˜AW`˜ ,Žrf˜ T}A ºASf˜ rJ ¤ }w˜ Artqm˜ lt› xCdnF :(Astronomy) •wk˜ T•r • .TyÐAl˜ Ÿ wyž wžA’ L’AnnF –˜Ð d` . •wk˜ T•r œy¡Afm˜ {` Ylˆ An›Amt¡ OnyF :(Beyond Newton) Ÿ wyž d` A› • ,_Afž³ Ÿyžw’ :™› TykyF®k˜ –yžAkym˜ ¨ CwV ¨t˜ TyFAF± .Tynq TK’An› © Ÿ› Ay˜A ¤ AyWF AnRrˆ wkyF . wmk˜ Anf`F - š¤AnF .(electromagnetism) TysVAnŒ›¤rhk˜ w¡ rb•± ¶AŒ˜ .ŠwRwm˜ @h˜ ®›A• Cw› POž  -^˜ :¨ž¤rtk˜³ ‰’wm˜ fO œthm˜ ¹CAql˜ Ÿkm§ https://plato.stanford.edu/contents.html .¨l§ Amy œhn› {`b˜ r•Ð œtyF .ºAml`˜ ¤ TfF®f˜ {` šAmˆ Ylˆ Š®V²˜

(Free Fall) r˜ ªwqs˜ 2

.TWs› |C±  Aqtˆ³ Ylˆ dmt` r˜ ªwqsl˜ Y˜¤± rysft˜ žA• © Y˜ At ¯¤ (natural) Ty`ybV T•r ¨¡ ™fF Y˜ Ylˆ Ÿ› ªwqs˜A ¨˜w |C± T§¤r• —C  ‰› A˜A} d`§ œ˜ ÐAs˜ rysft˜ @¡ Ÿk˜ .rysf .(1) ®ym˜ ™b’ ˜A˜ rq˜ x As˜ rq˜ ¨˜w Ÿ› A’®Wž ,–˜Ð ™b’ |C± T§¤r• TyžAk› “§r‹³ TfF®f˜ L’Až dq˜(1) .œhnym z§z`t˜ T˜ ± {` w›d’ ¤ , ®ym˜ ™b’

1 œ§dqt˜ T`C± r}An`˜ T§r\ž Ylˆ ( 384-322 BC) wWFC dmtˆ dw ¨t˜ As±  w¡ —@ž d¶As˜ Aqtˆ³ A• .r˜ ªwqsl˜ rysf ,(Air) ºwh˜ ,(Water) ºAm˜ :(3)r}Anˆ T`C Ÿ› §z› ¨¡ (Earth) (2)|C± Ylˆ TyFAF³ r}An`˜ £@h˜ wWFC YWˆ .(Earth) Trt˜ ¤ |C± ¤ ,(Fire) CAn˜ :Ty•r P¶AO Universe) wk˜ z•r› £A  ¨ AWqs§ Amhl` ºAm˜ ¤ Trt˜ T`ybV • .(Earth center) |C± z•r› ¢sfž w¡ ©@˜ (center

.(Heaven) ºAms˜ wž d`O§ Amhl` CAn˜ ¤ ºwh˜ T`ybV ™Aqm˜ ¨ • œs˜A .Ahby•r ¨ TyFAF± r}An`˜ Tbsn As°˜ Ty`ybW˜ T•r˜ “l`t Hk`˜ ¤ Tb˜AŒ˜ ¨¡ Trt˜ ¤ ºAm˜ Tbsž žA•  |C± z•r› wž Xqs§ AhžE¤ ‰› FAnt As± ªwqF TˆrF  wWFC dqtˆ ,@¡ Y˜ TAR .y} .Tfyf˜ As± Ÿ› ŠrF Xqs Tlyq˜ As± :(weight) AJAqn˜ œ\`m .r˜ ªwqsl˜ wWFC ­r\ž HF Ÿymlsm˜ AAR Hm œ˜ r•@ž .d` Amy Tsl Ah`› An˜ wkyF ¨t˜ •wk˜ T•r šw Cwmt žA• rq˜ ¨˜w ,(Abu al-Fath Khazini) ¨žEA˜ tf˜ w šAmˆ Aqm˜ @¡ ¨ gravitational potential) TyÐAl˜ Tn›Ak˜ T’AW˜ whf› CwV y ,rKˆ © A˜ Am• .A¡z•r› Ÿˆ TAsm˜ ‰› Ayskˆ FAnt |C± TyÐA  rt’ ¤ ,(energy .(weight) ™q˜ ¤ (mass) Tltk˜ Ÿy zyymt˜ ¨ ”Abs˜ A• ¢ž ryyŒt˜ ¢˜Amˆ ¤ ( 1564-1642) ¨ly˜A‹ wyly˜A‹ CA\tž Anylˆ A• Ð Ÿy rk˜ ¢y›C Ÿˆ dt ¨t˜ ­CwWF± œ‹C .r˜ ªwqs˜ šAy An r\ž TˆrF  Ab³ (Leaning Tower of Piza) ™¶Am˜ zy r Ÿ› Ÿyflt› ŸyžE¤ Yl` .–˜Ð Ÿˆ dt ¯ Twtkm˜ ¢˜Amˆ  ¯ , Ew˜A “l`t ¯ r˜ ªwqs˜ w¤ Ab³ (thought experiment) Tylq`˜ Trt˜ wyly˜A‹ ™m`tF ,Hk`˜ •r› œs˜ r˜ ªwqs˜ xCdž Anž ™y .¨ µA• wWFC T§r\ž ¨ {’An Atytž —An¡ .Tltk˜ ™mh› ySq ŸytVwr› Ÿyflt› ŸyžE¤ Ð Ÿy r• Ÿ› :r˜ ªwqsl˜ wWFC T§r\ž s Trt˜ £@h˜ Atnkm› .rb•± w¡ ¢žE¤ ± ,¯¤ ™k• œs˜ Xqs§ ,Th Ÿ› • .± ­rk˜ œ ,™q± ­rk˜ Xqs ,«r Th Ÿ› • T}®˜A .T·VA Ahn› AnqlWž ¨t˜ T§r\n˜  Ylˆ ™y˜ Rw˜ {’Ant˜ @¡ .« As± Ew “l`t ¯ r˜ ªwqs˜ TˆrF »  ¨¡ wyly˜AŒ˜ Tymt˜ Am› d•tl˜ Trt˜ ™m`tF d’ wyly˜A‹ A• Ð A› šw wC¥m˜ lt A’ ¢ž dqt`§ ¨t˜ (inclined surface) ™¶Am˜ ©wtsm˜ Tr —Anh .¢y˜ ™}w r˜ ªwqs˜ TˆrF ryyŒ ™¶Am˜ ©wtsm˜ dtF ºC¤ Ÿ› ‘dh˜ A• .Ah xAy’ ¯  r•@tž  § .”  ªwqs˜ ­d› xAy’ ™`§ Am› W Ahl` ¤ Ylˆ Š®V³ Ÿkm§ A›wl`m˜ Ÿ› d§zm˜ .Ty˜Aˆ T’ Ð Ÿk œ˜ —@ž Ÿ›z˜ : Atk˜ ¨ š¤± ™Of˜ dnˆ |C± CwOtž  Annkmy .T§wžA ªAqž ¨ An›whf› Ÿˆ “§r‹³ dnˆ |C± whf› lt§(2) .©w˜ Ah®‹ ‰› TyRC± ­rk˜ Ahž Ylˆ “§r‹³ .(Chemisty) ºAymyk˜ Cw› ¨ ™yOft˜ Ÿ› º¨K T§r\n˜ £@h˜ w`nF(3)

2 http://www.arvindguptatoys.com/arvindgupta/ten-beautiful-experiments.pdf .r˜ ªwqsl˜ rysf Ylˆ ™On˜ Ÿ wyž šAmˆ r\tnž  Anylˆ Ÿy` Ÿk˜

(Newton’s Laws of Motion) T•rl˜ Ÿ wyž Ÿyžw’ 3 rbˆ TfF® ¤ Ÿyy¶A§zy ­dˆ wh rA\ Atž ¨¡ T•rl˜ Ÿ wyž Ÿyžw’  ¨ AFAbt˜³ lt› ¤ TqyK˜ TOq˜ £@¡ žw {` ¨ QwŒ˜ ™b’ .§CAt˜ Ansfž r•@ž Ažwˆ ,A¡E¤A Ÿyy¶A§zyf˜ Ylˆ A• ¨t˜ Aw`O˜ ¤ œy¡Afm˜ .§CAtl˜ AžrbF ¢yw ‘dh T•r˜ ¹ Abm

(The Principles) ¹ Abm˜ 1.3

¤ ,¢tfyR¤ wžA’ ™k˜ .T•rl˜ Ÿyžw’ T® (Newton 1642-1726) Ÿ wyž ‰R¤ Ÿyqr› Ÿyžwq˜ £@¡ QwOž -¨l§ Amy- |r`nF .Tl›Akt› Tˆwm› ™kK§ ™k˜ .¢yn`§ A› ¤ Ahn› ™• Tym¡ šw Xys MAqn –˜Ð

(Principle of ) T˜AW`˜ wžA’ 1.1.3 :T}A (frames) œ˜A`› An˜ ‘r`§ ¢ž± T˜AW`˜ wžAq Ÿ wyn˜ š¤± wžAq˜ Yms§ .(Inertial frames) Ty˜AW`˜ œ˜A`m˜ (Tm\tn› Tyqts› T•r ¤ wkF) ¢˜A Ylˆ œs © Yqb§ ,¨˜AWˆ œl`› ¨» «.¨CA r¥› ¢ylˆ r¥§ œ˜ 

“In an inertial frame, an object either remains at rest or continues to move at a constant velocity −→v , unless acted upon by a force.” š¤Až A›dnˆ Annk˜ .Ty˜AW`˜ œ˜A`m˜ £@¡ ¨ ™kK˜ Hfž @ ºA§zyf˜ Ÿyžwq (time) Ÿ›zl˜ A}A A›whf› lWt Ahž ^®ž Ty˜AW`˜ œ˜A`m˜ £@¡ Ty¡A› œh ­r¡AZ © Xb r ¯ ¤ Ahsfn ­ ww› Ty˜AW`˜ œ˜A`m˜A .(space) ºASf˜ ¤ ŸyqlW› ŸyžAy• Akm˜ ¤ A›z˜ Ÿ wyž rbtˆ ,œ˜A`m˜ £@h˜ CAV ºAWˆ³ .Ty¶A§zy ¤ Ÿ›z˜ whf› CwW L’Anž A›dnˆ TWqn˜ £@¡ Y˜ w`nF .(absolute entities) .¨l§ Amy -() Žrf˜ T}A- ºASf˜ perpetual) Tb¶d˜ T•r˜ w¡ ¤ ¯ r œh› whf› Ylˆ wžAq˜ @¡ ©wt§ T•r˜ Ÿ› Šwn˜ @¡ .Tm\tnm˜ Tmyqtsm˜ T•r˜ ¨ Tlmtm˜ ¤ (motion -d` Amy –˜Ð «rnF Am•- CwO`˜ r› Ylˆ xAbt˜ ¤ Amt¡ ‰Rw› A•

(The Second Law) ¨žA˜ wžAq˜ 2.1.3 .–yžAkyml˜ ¨FAF± wžAq˜ ¨žA˜ dbm˜ ¨W`§

3 −→ Tlt• œs Ylˆ ­r¥m˜ F TyCA˜ «wq˜ Šwm› ©¤As§ ,¨˜AWˆ œl`› ¨» «.−→a ŠCAst˜ rR m œs˜ @¡ −→ “In an inertial frame, the vector sum of external forces “F ” on an object is equal to the mass “m” of that object multiplied by its acceleration “−→a ””.

X −→ d F = m · −→a = −→p . dt :¨¡ }± T‹AyO˜  ¯ ¯¤d r•± ¨¡ wžAql˜ T‹AyO˜ £@¡  œ‹C −→ Cdq› œs Ylˆ ­r¥m˜ F TyCA˜ «wq˜ Šwm› ©¤As§ ,¨˜AWˆ œl`› ¨» «.Ÿ›zl˜ Tbsn˜A œs˜ @¡ (momentum) T•r Tym• ryŒ Ÿk˜ ,−→v ¢tˆrF rR m œs˜ Tlt• Ahž Ylˆ ­ Aˆ T•r˜ Tym• ‘r` .–yžAkyml˜ (Hamiltonian formulation) ¨žwtly›Ah˜ }w˜ ™m`ts§ œˆ± §r`t˜ ¤ ­wq˜ :¨¡ wžAq˜ @¡ ¨ TyFAF± œy¡Afm˜  St§ T‹AyO˜ £@¡ š® Ÿ› .T•r˜ Tym• wžAq˜ CAbtˆ ,(mathematical formulas) TyRA§r˜ TŒyO˜ Y˜ r\n˜A ,Annkm§ ¨FAF± bs˜ žA ­r\n˜ £@¡ Ÿk˜ .¨žA˜ wžAq˜ Ÿ› T}A T˜A• š¤± ,r•@˜ AnflF Am• .(š¤± wžAq˜) }w˜ @¡ ¢¶AWˆ ¤ š¤± wžAq˜ T‹AyO˜ .Ty˜AW`˜ œ˜A`ml˜ §r` ºAWˆ w¡ š¤± wžAq˜ Ÿ› ‘dh˜

(The Third Law) ˜A˜ wžAq˜ 3.1.3 .(equilibrium) Ew wžA’ ˜A˜ wžAq˜ CAbtˆ Ÿkm§ « .£A ³ ¨ ¢s•A`§ ¤ ­dK˜ ¨ ¢§¤As§ ™` C ™` ™k˜ »

“When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in the direction on the first body.” isolated) T˜¤z`m˜ TykyžAkym˜ ™m˜ TFC dnˆ AyFAF C¤ wžAq˜ @¡ `l§ Ylˆ r¥ ¯ ¨t˜ ™m˜ ¨¡ T˜¤z`m˜ TykyžAkym˜ ™m˜A .(mechanical systems .{`b˜ AhS` Ylˆ r ¥ Ah Ažwk› lt› Ÿk˜ ,¨CA˜ XFw˜ Ahylˆ r¥§ ¯ ¤ ™m˜ ºAntF ™m˜ £@¡ ™› A§ Ÿkm§ ¯ £®ˆ ˜A˜ wžAq˜ w¤ ¤db .(trivial systems) Tym¡± Tm§d`˜ œ˜A`˜ ¤ ‘wslyf˜ d§ Ylˆ wžAq˜ @¡ T‹AyO˜ ¯¤Am˜ š¤ «d žA• «­ AS› ­w’ ­r¥› ­w’ ™k˜ » :šA’ y .(Avempace 1095-1138) TA Ÿ œlsm˜  d§ œ˜ ¢nk˜ .(“there is always a reaction force for every force exerted”) .™`fl˜ A§¤As› ™`f˜ C A•

4 (Force) ­wq˜ 2.3 (Aristotle 384-322 BC) wWFC Y˜ (external force) TyCA˜ ­wq˜ lWO› w`§ :‘An} T® Y˜ «wq˜ œs’ ©@˜ As± T`ybW “l`t ¨t˜ «wq˜ ¨¡ ¤ :(Natural Forces) Ty`ybW˜ «wq˜ • T§¤Ams˜ r± T•r ¤ (r˜ ªwqs˜ ­rq ‰˜AV) r˜ ªwqs˜A• .(TysmK˜ Tˆwmm˜ ­rq ‰˜AV) (Heavenly Bodies) An¶Ak˜ Ÿ› T`An˜ «wq˜ ¨¡ ¤ :(Spontaneous Forces) Ty¶Aqlt˜ «wq˜ • .(Living Orgamisms) Ty˜ .«r± «wq˜ ‰ym ¨¡¤ :(External Forces) TyCA˜ «wq˜ • Ty¶Aqlt˜ ¤ Ty`ybW˜ «wq˜ CAbtˆ Ÿkmy .Tymst˜ bF œysqt˜ @¡ Ÿ› Ayl rh\§ .TyCA˜ «wq˜ Hkˆ ,A› º¨J ™ Ÿ› T`Až Ahž± Tyl «w’ :(4)TyCA˜ ­wq˜ ryt˜ ¨˜At˜ }w˜ wWFC YWˆ −→ ‰› Ayskˆ ¤F TyCA˜ ­wq˜ ­dJ ‰› A§ rV TbFAtn› −→v œs˜ TˆrF wk » .«ρ XFw˜ TA• ¤ m œs˜ E¤

“The speed “−→v ” at which an object moves is proportional to the amount of −→ force exerted on it “F ” and inversly proportional to its weight “m” and the density of medium “ρ” through which it moves.” :¨˜At˜ ™kK˜ Ylˆ wWFC± T•r˜ wžA’ T‹Ay} Ÿkm§ −→ m F = · −→v ρ :Ÿ§r› wžAq˜ T‹Ay} ¨ Tbk rm˜ ºAW± XC An`Fw ’¤ ¨ Aqy’ Ÿ›z˜ xAy’ Ÿk§ œ˜ :(Time Measurement) Ÿ›z˜ xAy’ • ‰˜AV ,ryŒt˜A ¢WC ©@˜ Ÿ›zl˜ wWFC §r` Tl ŸyW˜ E A› ¤ .wWFC .A›wl`m˜ Ÿ› d§zm˜ Ÿ›z˜A T}A˜ ­rqf˜ As± T•r  wWFC ^¯ :(Friction or Resistance) —Akt³ • XC .œs˜ ™kJ @• ¤ ¢y —rt ©@˜ (ºAm˜ ¤ ºwh˜) XFw˜A “l`t rysf d§ œ˜ ¢nk˜ ,(5)XFw˜ TA• ryt Y˜¤± T\®m˜ wWFC CAq§  wWFC Cr’ ,­ry± Ty˜AkJ³ Ylˆ lŒtl˜ .TyžA˜ T\®ml˜  Ylˆ ‘rOt˜ @¡ œh Ÿkm§ .¢sfž ™kK˜ Ð As Ylˆ ­wq˜ ry ­w’ w¤ ¨¡ T§d˜ ­r\n˜ .¢t`ybV Ÿ› ºz œs˜ ™kJ rbtˆ wWFC .¢y —rt§ ©@˜ XFw˜ ¤ œs˜ Ÿy —Akt

.TyˆA`K˜ r§ Aqm˜ ¤d wžAq˜ @h˜ wWFC T‹Ay} wk  Ÿkm§(4) {` dqt`§ .Aqy’ Af§r` AhW`§ œ˜ ¢ž ¯ ¢nyžw’ ¨ XFw˜ TA• ™m`tF wWFC  œ‹C(5) .XFw˜ (viscosity) T¤z˜ dO’ ¢ž ŸyC¥m˜

5 ºAyJ±A A¡A§ ŸyžCAq› ¢žwžA’ ¶Atž L’Anž ¤ wWFC PJ Pmqtž Ažwˆ : wžAq˜ dqn˜ TlyFw• Tl·F rV Annkm§ .—@ž T¤r`m˜ ?Tny`› Tyn›E ­dm˜ ­wq r¥ž A›dnˆ d§ ÐA› - ?(vacuum) Žrf˜ ¨ d§ ÐA› - Ÿy A›Am ’wt§ œs˜  -AnžwžA’ Ÿ› A’®Wž- tntsž  ™hs˜ Ÿ› ¶@q˜ T•r Ty˜AkJ dW} ¢nk˜ wWFC ’w› @¡ A• .­wq˜ ry ’wt§ |rt ,Ty˜AkJ³ £@¡ ™˜ .­wq˜ ry ºAhtž œ‹C rmts ¨t˜ (projectiles) xAmt˜³A r¥ ­wq˜A .ryt˜ ‰yWts ¨k˜ XFw˜ At ­wq˜  wWFC (ºAm˜ ¤) ºwh˜ “§rV Ÿˆ Ahlqž œt§ ¤ ,A› Ams sž ¤ ‰dž A›dnˆ (contact) .Tf§@q˜ T˜A ¨ £@¡ ¨ lO§ ¯ AnžwžA’ ± (dilemma) TlS`› A› ¨žA˜ š¥s˜ An`S§ XF¤ w¤ Ty›z˜ “As˜ rt’³ ‰› Ty˜AkJ³ Hfž ‘ AOž .(ρ = 0) T˜A˜ Ÿ§@¡ ™˜ Žrf˜ Ÿ› Plt§  wWFC Cr’ .r¥  ­wq˜ ‰yWts ¨k˜ £@h˜ w`nF .(horror vacui) ®} ww› ry‹ ¢y˜ Tbsn˜A Žrf˜A .Ÿy˜AkJ³ .Žrf˜ Ÿˆ An§d dnˆ TWqn˜ Archimedes) xdymC œ˜A`˜ Y˜ TyCA ­wq˜ TyRA§C T‹Ay} š¤ w` @¡ šwq§ .(Archimedes law of buoyancy) xdymC T` ¨¡¤ (287-212 BC .«zm˜ ºAm˜ ™q ‰› FAnt ­wq H§ ºAm˜ ¨ CwmŒ› œs ™•»  wžAq˜ Ÿs ¤ Ÿ›z˜ xAy’ ¯ TˆAn} dq ‰› wWFC wžA’ wyˆ rh\ d ¤ wm˜ TA• §r`t (Ÿyy¶Aymyk˜ T}A) ºAml`˜ Amt¡ –˜Ð Ylˆ E .Aht’ ry  Až “l` Yfž ©@˜ (Avempace 1095-1138) TA Ÿ œ˜A`˜ —Anh .AhAs wžA’ {qn (1080-1164) © dŒb˜ ¢l˜ Tb¡ £r}A`› A’ .XFw˜ TAk ­wq˜ Tˆrs˜ |wˆ (acceleration) ŠCAst˜ ‰› FAnt ­wq˜  šA’ y wWFC dJC Ÿ A’ .Ÿ›z˜ ‰› Tˆrs˜ ryŒ Cdq› ¢ž Ylˆ ŠCAst˜ ‘rˆ ¤ .(speed) y H•A`m˜ £A ³ ¨ T•r˜ wžA’ Y˜ r\n˜A ( 1126-1198) T˜A˜ ryyŒt˜ E®˜ ™m`˜ Cdq› Ahž Ylˆ Ahrˆ y, ­wq˜ x Ayq˜ ¢lm`tF Anylˆ A• ¢ž ¯ wmlsm˜ ºAml`˜ ¢y˜ ¡Ð A› T} œ‹C ¤ .A› œs˜ Ty•r˜ .¨žA˜ ¢žwžAq˜ Tqy’d˜ TyRA§r˜ TŒyO˜ Tr`m˜ Ÿ wyž CA\tž Amh› A›whf› L’Anž Ažwˆ ,T˜AW`˜A Xb rm˜ ¨˜At˜ ŠwRwm˜ Y˜ C¤rm˜ ™b’ :¨˜At˜ š¥s˜A ºd Ÿ wyn˜ ¨žA˜ wžAq˜ ¨ «?–yžAkym˜ ¨ (£dž ©@˜) (mass) Tltk˜ œy¡Af› dˆ œ•» Tylq˜ Tltk˜ ¤ (inertial mass) Ty˜AW`˜ Tltk˜ : A›whf› w¡ ¢ylˆ ‘CA`tm˜ w˜ ,Ÿ wyn˜ ¨žA˜ wžAq˜ ¨ rh\ ¨t˜ ¨¡ Ty˜AW`˜ Tltk˜A .(gravitational mass) wd Ÿ§@˜ ™¶¤± ºAml`˜ Ÿ› ¤ .TyÐA˜ ­wq rt ¨t˜ ¨h Tylq˜ Tltk˜ A› ªwqs˜ TˆrF  Am ¢nk˜ .(Averroes 1126-1198) dJC Ÿ Ty˜AW`˜ Tltk˜ Ÿˆ  -T•rl˜ ¨žA˜ wžAq˜ Ylˆ Amtˆ- Q®tF Ankmy ,Tltk˜A “l`t ¯ r˜ CAyt At§¤Ast› Amhl` An`Fw ¤ . AtbFAnt› Tylq˜ Tltk˜ ¤ Ty˜AW`˜ Tltk˜ :A¤rW› Yqb§ ©@˜ š¦Ast˜ Ÿk˜ .dwl˜ FAn› «?T`ybW˜ Hfž Tylq˜ Tltk˜ ¤ Ty˜AW`˜ Tltkl˜ ™¡» .(general relativity) T›A`˜ Tybsn˜ Ÿˆ A§d dnˆ š¥s˜ @¡ Ylˆ TA³ L’AnnF

6 (Momentum) T•r˜ Tym• 3.3 Ylˆ ©wt§ ¢ž ^®ž Ÿ wyn˜ T•rl˜ š¤± wžAq˜ Y˜ Ÿ`mt r\nž A›dnˆ .Tb¶d˜ Tm\tnm˜ Tmyqtsm˜ T•r˜ ¤ ,¨˜AW`˜ œl`m˜ ,T˜AW`˜ :œy¡Af› T® T•r˜ Ÿ› T}A T˜A ™m ¨t˜ Tm\tnm˜ Tmyqtsm˜ T•r˜ ¨ ¯¤ r\nnF .T•r˜ Tym• TK’Anm˜ AntlC Až wqtF .Tb¶d˜

(Inclination) ™ym˜ 1.3.3

.(rest) wks˜ ¤ (movement) T•r˜ Ÿy A§r¡w A’r —An¡  “§r‹³ dqtˆ ¢f˜A Amny As°˜ (natural state) Ty`ybW˜ T˜A˜ w¡ wks˜  wWFC rbtˆ As°˜ Ty`ybW˜ T˜A˜  dqtˆ y (Lucritius 99-55 BC) (6)xwyt§r•w˜ ©r˜ Y˜ ­rJAb› ¥ œ˜ ­r\n˜ £@¡  œ‹C .(7)TtA TˆrF Ð T•r Ÿˆ ­CAbˆ ¨¡ ¨ Y˜¤ ­wW rbt`§ Tb¶ T•r w¤ TyžAk› šwb’  ¯ ,CAk± ¨ ­Cw ?Tb¶d˜ T•r˜ T§CrmtF ŸmS ¨t˜ Ty}A˜ ¨¡ A› Ÿk˜ .yO˜ £A ³ T•r˜ A› A·yJ ¢bK T•r xCdž  -Ty}A˜ £@¡ Ÿˆ ­rk Ÿ§wkt˜- Annkm§ .¶@q˜ T•r :rmtst˜ T§r¡AZ ­w’ Ylˆ dmt` ¯ T•r .Tb¶d˜ ,Tyl• A`nq› ¶@q˜ T•r˜ wWFC rysf Ÿk§ œ˜ ,AqAF AnflF Am• £@¡ rJ w`C Ÿ§@˜ TfF®f˜ Ÿy Ÿ› .Žrf˜ Ÿˆ ¨lt˜ Y˜ A’ ¢ž T}A  xwžwwly rt’ .(John Philoponus 490-570) xwžwwly w T•r˜ ± ™ XFw˜ ‘rV Ÿ› ­w’ ry ™qž bs Hy˜ Tf§@q˜ T•r CrmtF ¢nk˜ .Ah C AŒ› dnˆ (inclination/motive power) ™y› A¡AmF Ty}A stk Tf§@q˜ .Ahf’w Y˜ © ¥§ Am› Ty}A˜ £@¡ Ay§Cd dqf Tf§@q˜  dqtˆ . CAt˜ Ylˆ Ÿ§dmt`› A¡r§wW ¤ xwžwwly ­rk @ wmlsm˜ A’ ¢ybJ db› Y˜ Pl ©@˜ ( 980-1037) AnyF Ÿ šAm˜ ™ybF Ylˆ r•@ž .Ÿ wyn˜ T˜AW`˜ dbm ­w’ ¢ylˆ r¥ œ˜ A› £A ³ Hfž ¨ ¢t•r —rtm˜ œs˜ ™}w§» .«TyCA

“A body moves perpetually unless an external force stops it or changes its direction of motion”. perpetual) Tb¶d˜ T•r˜ TyžAk› w\¯ Ÿ§@˜ ™¶¤± Ÿ› @h AnyF Ÿ A• Am• .™›Ak˜ T˜AW`˜ db› Ylˆ šwOl˜ ¨˜AW`˜ œl`m˜ «wF ¢Oqn§ œ˜ .(motion rR ™}A Ahž Ylˆ (momentum) (8)T•r˜ Tym• §r` ¨ “bs˜ ¢˜ A• T•r˜ Tym•  -xwžwwly Hkˆ- AnyF Ÿ dqtˆ .¢tˆrF ¨ œs˜ Tlt• ,£®ˆ dbm˜ Ÿ› R¤ w¡ Amk .Ahsfž ºAql Ÿ› ¨ft ¯ ¤ TZwf› Tym• ¨¡ .TyCA ­w’ ryt T•r˜ Tym• db AnyF Ÿ XC

.( 341-270 BC) Cwqy šAmˆ r d’ wk§  Ÿkm§(6) .Tm\tn› T•r © ¤ Tmyqtsm˜ T•r˜ w¡ wOqm˜ A•  d§dt˜A ‘r`§ ¯(7) .T•r˜ Tym• šd xwžwwlyf˜ ™ym˜ lWO› AnyF Ÿ ™m`tF(8)

7 Impetus œz˜ 2.3.3 Ylˆ Tynb› Tb¶d˜ T•r˜ ¤ T•r˜ Tym• ‰› ŸyyC¤± ™›A` A§d žA• (Jean Buridan 1295-1363) d§Cw w YmF .AnyF Ÿ ¤ xwžwwly šAmˆ “¤ .(Impetus) œz˜ :­wq ¢ylˆ ryt˜ d` œs˜ Ahbstk§ ¨t˜ Ty}A˜ rbt`§ .¢sfž ºAql Ÿ› dbt§ ¯ œz˜  rbtˆ y ©r˜ AnyF Ÿ d§Cw ­dˆ ¨ A•rtK§ Ÿy›whfm˜ ®k (momentum) T•r˜ Tym• whf› lF œz˜ T˜A ºAntF _wf› Am¡®• ¤ ,Tˆrs˜ ¤ Tltk˜ Ylˆ dmt`§ y P¶AO Ÿˆ ­CAbˆ œz˜A :Ÿy›whfm˜ Ÿy ©r¡w ”r dw§ ¢nk˜ .TyCA ­w’ ry vectorial) ¨ˆA`J Cdq› ¨¡ ¨t˜ T•r˜ Tym• Hkˆ (scalar quantity) ¨mlF Cdq› ¨t˜ T•r˜ Tym• Hkˆ (speed) Tˆrs˜ ŠA`J Tl§wW “l`t§ œz˜A .(quantity .Tˆrs˜ ŠA`K “l`t œz˜ §r` Ÿ› A’®Wž .(9) •wk˜ T•r rysft˜ œz˜ d§Cw ™m`tF Tmyqtsm˜ Ÿyt•r˜ Ÿ› ™• rysf Ÿkm§ ¨r r¥› Ay‹ ¨ ¢ZAfž ¤ Giambattista) ¨t§dyny Atsy Ab›Ay Y˜ ™Sf˜ w`§ .Ÿytm\tnm˜ T§r¶d˜ ¤ Ÿkm§ ¨t˜ A•r˜ rO ¤ ­r\n˜ £@¡ yOt˜ (Benedetti 1530-1590 :Tm\tnm˜ Tmyqtsm˜ T•r˜ Y˜ œz˜A A¡rysf ­w’ ry “§rV Ÿˆ ¢bst• œE ry  © A› œys ©± Ty @˜ T•r˜» «.Tynn› ry‹ Tmyqts› T•r ¨¡ TyCA “. . . [Any] portion of corporeal matter which moves by itself when an impetus has been impressed on it by any external motive force has a natural tendency to move on a rectilinear, not a curved, path.”.  Ab³ šAm• (sling) Š®qm˜ ¤ T@m˜ ¨ r˜ T•r ¨t§dyny ™m`tF Y˜¤± ¯¤Am˜ Ylˆ œz˜ T§r\ž r .T§rO’ T•r ¨¡ T§r¶d˜ T•r˜ .¨l§ Amy –˜Ð Ÿ› AS` «rnF .–yžAkym˜ Ÿyžw’ T‹AyO˜

(Impetus Dynamics) ¨mz˜ –y›An§d˜ 3.3.3 œ˜ Ÿyy¶A§zyf˜  ¯ –y›An§dl˜ wWFC T§r\ž ¨ P¶Aqž ­dˆ CwhZ œ‹C ºr Ÿˆ ­CAbˆ Y˜¤± ¯¤Am˜ žA• .Ayl• Ahnˆ ¨ltl˜ Ÿ§d`ts› wžwk§ ¢ r\ž œ‹C- d§Cw A• ,šAm˜ ™ybF Ylˆ .T§r\n˜ £@h˜ Tylym Aylmˆ T•r˜ ¤ wks˜ CAbtˆ ¨ ©r˜ wWFC rVAK§ -Tf§@q˜ T•r˜ Tfltm˜ AbF± œ¡ Ÿ› žA• Ah‹A} ¨t˜ œz˜ T§r\ž Ÿk˜ .A§r¡w Ÿyflt› Ÿy·yJ ­d¤ Y˜ œz˜ T§r\ž   dq .–y›An§dl˜ wWFC T§r\ž ¤ Y˜   ¨t˜ Tr ¨¡ ¤ ¯ ºA§zyf˜ §CA ¨ (thought experiment) T§rkf˜ CAt˜ œ¡ Ÿ› pendulum) xwn˜ T•r Tw Trt˜ £@¡ žA• .(The tunnel experiment) “fn˜ .–yžAkym˜ œ˜Aˆ Y˜ w˜wl˜ (oscillatory motion) T§Ezt¡³ T•r˜ ¤ (motion r rysf ºAWˆ³ T˜¤Am• œz˜ T§r\ž A§d žA• ,AqAF AnflF Am• :Ÿ§dbm˜ ¨ Plt˜ T§r\n˜ £@¡ CwW œ .¶@q˜ T•r˜

sy˜ •wk˜ T•r  A• —@ž d¶As˜ Aqtˆ³  r•@ .Tm\tnm˜ T§r¶d˜ T•r˜ ©(9) .­w’ © Atž

8 .ry± @¡ œE ­ A§E Y˜ © ¥ wkF T˜A ¨ œs Ylˆ ­w’ ry • .TyCA ­w’ ry  ¯ ryŒt§ ¯ œz˜ Tym• • :¤rWm˜ š¦Ast˜ Ÿk˜ «?—@ž –yžAkym˜ ­d¶A› Y˜ d§d Ÿ› œz˜ T§r\ž AR ÐA›» Y˜ Trt˜ ­rk snž  Annkm§ .š¦Ast˜ @h˜ TA “fn˜ Tr žA• ‰’¤ .Trt˜ Ÿ› A› Tlr› ¨ A¡ry £A  ryŒ T`ybW˜ ¨ ­w’ A§ T˜¤A›  —@ž Aqtˆ³ A• .Ty}A˜ £@¡ “q Ahž± |C± TyÐA Ylˆ CAyt³  ¤ |C± z•r› wž ªwqsl˜ Ah`d ¨t˜ As± T`ybV w¡ TyÐA˜ bF @h˜ Tbsn˜A Ÿy rZAnt› ŸytWqž ¨ An•  .As± ¢y˜ @§ |C± z•r› ¨k˜ .Ÿys•A`t› Ÿy¡A  ¨ TyÐA˜ ­w’ ry wkyF ,(antipodal) z•rm˜ (10)|C± z•rm rm§ “fž rf Anylˆ wt§ Trt˜ £@h Ayq˜ Ÿ› Ÿkmtž .Tymst˜ bF ©@˜ Ÿ› Ÿy`› ŠAf C Ylˆ wkF T˜A ¨ œs ™` ¨ “fn˜ Tr ™mt £@¡ Ÿ› Ah`’wtž  Annkm§ ¨t˜ ¶Atn˜ ¨¡A› .“fn˜ @¡ ¨ Xqs§ |C± WF ?Trt˜ dnˆ Ay¶Ahž T•r˜ Ÿˆ ’wt§ œs˜  ,wWFC T§r\ž Ylˆ Aždmtˆ  • T§r\ž ‰› —rtK T§r\ž © Anlm`tF  ¤ .|C± z•r› Y˜ ¢˜w}¤ .Ahsfž Tytn˜ Y˜ ™}wtž ¹ Abm˜ ¨ wWFC ¤ œs˜ ªwqF dnˆ .A›Am Tflt› Tytž œz˜ T§r\ž ¨W` ™Aqm˜ ¨ • lb Yt ’w˜ C¤r› ‰› ¢mE Tym• z ,|C± z•r› ¢‹wl ™b’  ¢sfž ºAql Ÿ› dbt§ ¯ œz˜ ± .|C± z•r› dnˆ «wOq˜ Ahtmy’ Ÿk˜ .|C± z•r› Y˜ šw}w˜ d` rmts ™ ’wt ¯ œs˜ T•r Y˜ © ¥§ Am› T•r˜ £A  Hkˆ w¡ ­rm˜ £@¡ TyÐA˜ ry £A  ± ¤ TyÐA˜ w¡ œz˜ Tym• ™} ± ¤ .A·yK A·yJ œz˜ Tym• db Yt T•r˜ Ÿˆ ’wt§ ¯ œs˜  ,œz˜ db bF ¨¡ Ahsfž TyÐA˜ ,|C± Ÿ› «r± Th˜ ¨ Ÿk˜ ,¢n› d ©@˜ ŠAf C³ Hfž Ylˆ wk§ CAk± Hfž šAm`tF .T§db˜ Ty`Rw˜ ThAK› Ty`R¤ Y˜ Aždy`§ Am› Ylˆ ŸytWqž Ÿy AA§ ¤ AA¡Ð T§Ezt¡ wk œs˜ T•r  Y˜ Plž .A¡z•rm˜ Tbsn˜A Ÿy rZAnt› Ÿk˜ |C± WF Ÿ› ŠAf C³ Hfž :wyly˜AŒ˜ Ty˜At˜ T˜wqm˜ ¨ Tytn˜ £@¡ Pyl Ÿkm§ Y˜ ¢ Aˆ³ TyA• œz˜ Ÿ› Tym• A› ŠAf C Ÿ› ¢VwqF ºAn œs stk§ » « .ŠAf C³ Hfž

“The heavy falling body acquires sufficient impetus [in falling from a given height] to carry it back to an equal height”. spherically) ©¤r• rZAn ¤Ð TyRC± TyÐA˜ ™q  |rtf Trt˜ £@¡  ^¯(10) –˜Ð  œl`ž Annk˜ ,TyÐA˜ bF w¡ |C± z•r›  Ažrbtˆ  Tqq› Ty}A˜ £@¡ .(symmetric TAsm˜A “l`t§  § Tltk˜ £@¡ ‰§Ew  ¨n`§ @¡ .T§ÐA˜ bF ¨¡ |C± Tlt• ± y} ry‹ .Xq |C± z•r› Ÿˆ

9 Ylˆ Amtˆ “fn˜ Trt˜ T`’wtm˜ ¶Atn˜ Ÿy AR¤ A’r —An¡  œ‹C ,Ay¶Ahž Ahnˆ ¨lt˜ šd ¤ .Trt˜ ºr Ÿkm§ ¯ ¢ž ¯ Tlm`tsm˜ T§r\n˜  rbtˆ .¨˜At˜ ™kK˜A (pendulum) xwn˜ T•r rK˜ Ah¶Atž lm`tF dw y T§¤Ams˜ Tbq˜ qF Ÿ› Y˜dt§ ™§wV ™b ªwr› zthm˜ œs˜ ryk rŒ} |C± rW’ ± .AmR AFwž ™k˜ ™kKy˜ (fixed stars) TtA˜ wn˜ r\n˜ µ Ÿkm§ .Tmyqts› xwn˜ ­r• T•r CAbtˆ Ÿkm§ ,™b˜ šwV Ÿ› ™b Ÿ› Tžwkt› ¨žwk˜ xwn˜ Ÿˆ ­rŒO› Tlm ¢ž Ylˆ © A`˜ xwn˜ Y˜ Otn› w¡ |C± z•r› ¤ ,“fn˜ ™ ¯ |C± ”w —rt Tlt• ¤ ryŒ} Tym• z :T§Ezt¡ T•r © rysft˜ ­rkf˜ Hfž “ybW œ .(11)T•r˜ ­r› zt˜ T›d`n› bOt˜ P’Ant œ Ah ¤CÐ ™Ot˜ wks˜ Ÿ› A’®Wž œz˜ .–y˜¤ @k¡ ¤ «r

(momentum) T•r˜ Tym• 4.3.3 ¢t§r\ž ºAn ¨ œz˜ šAm`tF (Ren´eDescartes 1596–1650) CAk§ ¢yn§C š¤A :(assumptions) ŸyRrt³ Ÿ› “lWžA .–yžAkyml˜ .Amys Ÿ› wk› wk˜ • .r œys dW} Ð ¯ (T•r ¤ wkF) ¢˜A Ylˆ Yqb§ œys˜ • ¨FAF dbm• (conservation of impetus) œz˜ _Afž db› CAk§ ‰R¤ d` A’ .­dˆ ™•AK› Ÿ› žAˆ Ahy˜ ™}w ¨t˜ T§r\n˜ Ÿk˜ .–yžAkyml˜ Christopher) C rwts§r• ,(John Wallis 1616-1703) Hy˜¤ w Ÿ› ™• –˜Ð ™ ( 1629-1695) Hn‹w¡ Ayts§r• ¤ ,(Wren 1632-1723 :(13)Ÿ§dbm˜ w`R¤ y ,(elastic collision) (12)Tžrm˜ A› AOt˜ T˜s› . AOt˜ d` ¤ ™b’ (total momentum) Tylk˜ T•r˜ Tym• ryŒt ¯ • . AOt˜ d` ¤ ™b’ (total kinetic energy) Tylk˜ Ty•r˜ T’AW˜ ryŒt ¯ • œz˜ w• ¨ T•r˜ Tym• ¤ œz˜ Ÿy ”rf˜ Ÿmk§ ,AqAF AnflF Am• Ty¶A§zyf˜ ¶Atn˜ Ÿk˜ .TyˆA`J Tym• ¨¡ ¨t˜ T•r˜ Tym• Hkˆ TymlF Tym• ¨ ¨¶A§zy C¤ © œz˜ `l§ ¯ ‰’w˜ ¨f .«wO’ Tym¡ Ð ”rf˜ @h˜ Am T§Ezt¡³ T•r˜ rysf ¨ œz˜ Až rsfž y• ,Ÿk˜ .–yžAkym˜ .(conservation of energy) T’AW˜ _Afž “l`t§ w˜ ?xwn˜ T•r Ahy

(Inertia) T˜AW`˜ 4.3 :œy¡Af› ­dˆ dOqž Anž (inertia) T˜AW`˜ Ÿˆ œlktž A›dnˆ ,AqAF AnflF Am• T§d˜ ­r\n˜ rbt` .xwn˜ T•r˜ T§d˜ ­r\n˜ Ÿˆ A›Am lt ­r\n˜ £@¡  ^¯(11) T§Ezt¡³ T•r˜ rbt` ¨t˜ œz˜ T§r\ž Hkˆ ,™fF Y˜ Ylˆ Ÿ› wk T§Ezt¡³ T•r˜  .CAsy˜ Y˜ Ÿymy˜ Ÿ› TybžA T•r ¨¡ .(inelastic collision) Tžr› ryŒ˜ A› AOt˜ AS§ Hy˜¤ xC ‰’w˜ ¨(12) .Ty•r˜ T’AW˜ §r` (Gottfried Leibniz 1646-1716) ztnb§¯ d§rf w‹ rt’(13)

10 ryyŒt˜ ¨¶A§zy œs © T›¤Aq› Ahž Ylˆ T§db˜ ¨ (inertia) T˜AW`˜ rˆ • T•r˜ ¤ (inertial mass) Ty˜AW`˜ Tltk˜ šAm`tF Ÿkm§ .Ty•r˜ ¢t˜A .–˜Ð }w˜ (uniform rectilinear motion) Tm\tnm˜ Tmyqtsm˜ (frames) œ˜A`m˜ ¥Ak Ylˆ Pn§ ©@˜ ¤ (Principle of inertia) T˜AW`˜ db› • .{`b˜ AhS`b˜ Tbsn˜A TtA Tˆrs —rt ¨t˜ (Galileo) wyly˜A‹ A• .TyžA˜ TWqn˜ Yqbt˜ Y˜¤± TWqn˜ Ÿˆ And dq˜ Tm\tnm˜ T§r¶d˜ T•rl˜ Tbsn˜A ¢‹A} ¢ž œ‹C ¥Akt˜ @¡ T\®› ¨ ”Abs˜ š¥s˜ @¡ Ylˆ TA²˜ ?–˜Ð ºC¤ bs˜ w¡ A› Ÿk˜ .(uniform circular motion) ™y}Aft˜ ¨ šwd˜ ¤d -|C± T}A- •wk˜ T•r Ÿˆ dtž  § .–˜@˜ Tl›A• ­rq POnF Anž± ­ A› Ÿ› wkt T§¤Ams˜ r±  wWFC rbtˆ :(Aristotle) wWFC • dqtˆ .(Ether) (14)ry± A¡AmF ryyŒtl˜ TlA’ ry‹ ¤ Ah˜ E¤ ¯ Ty˜A› ,Tm\tn› T•r ¨¡ -Ty˜A› Ahžw•- T§¤Ams˜ r± T•r  wWFC .Tm\tn› T§r¶ T•r ¨¡ T•r˜  Ÿ› dq T§C¤ Ahž± ¤ Tˆwmm˜ z•r› ¨¡ HmK˜  –yžrw• rbtˆ :(Copernicus) –yžrw• • T•r CAbtˆ Ÿkm§ ¤ .Ah˜w C¤d |C± Ahy Am •wk˜  ¤ TysmK˜ .(15)Tm\tn› T§r¶ T•r |C± @¡ ¢f’w› Yn . •wk˜ T•r˜ –yžrw• A\ž ©džAs› Ÿ› wyly˜A‹ A• .(telescope) CA\nm˜ šAm`tF Tyklf˜ ¢ A\®› Ylˆ Amtˆ A• Am• Ty˜A› sy˜ •wk˜  ¨n`§ Am› rmq˜ WF Ylˆ šAb —An¡ • .dqt`§  ¨n`§ Am› (Jupiter) ©rtKm˜ •w• šw C¤d CAm’ T`C w¤ • .«r± •wk˜ Ÿˆ lt ¯ |C± šw C¤d§ ¢ž ¨n`§ Am› rmq˜ ™r› Hfn (Venus) ­r¡z˜ •w• rm§ • .HmK˜ œt¡ ?AhWF Ylˆ Tr Ÿ› A’®Wž |C± T•r bž  ‰yWtsž ™¡ Ÿk˜ T•r˜ œym` Ylˆ Amtˆ ,wyly˜A‹ dqtˆ .Ahsfž šw |C± T•r wyly˜A‹ :  ,rmq˜ T•r ¤ œz˜ T§r\ž ®m`ts› xwn˜ ™}w§ |C± z•r› A¡z•r› Tm\tn› T§r¶ T•r ¨ —rt§ œs ©» .«TyCA ­w’ ¢ylˆ r¥ œ˜ A› ¢t•r

“all external impediments removed, a heavy body on a spherical surface concentric with the earth will maintain itself in that state in which it has been; if placed in movement towards the west (for example), it will maintain itself in that movement”. .­ Am˜ £@¡ Y˜ () wV® £ÐAtF m˜ dq˜(14) .—@ž T\®m˜ T’ ¤d ¨ ™’± Ylˆ(15)

11 ™}wtF Ahž , ¢tbst• œE Tytž TnyfF •r  ,wyly˜AŒ˜ Tbsn˜Ab .­w’ © Ahylˆ r¥ œ˜ A› ’w ¤d |C± šw Tm\tnm˜ T§r¶d˜ Aht•r ™}w ,Tnyfs˜ ­r ™ T§rk Tr šAm`tF ¤ Tytn˜ £@¡ Ÿ› A’®Wž A› wkF ¤ T•r ¨ Tnyfs˜ žA• Ð A› Tr`› T˜AtF Tytž Y˜ wyly˜A‹ .Tm\tnm˜ T§r¶d˜ T•r˜ Ÿˆ œlkt§ A• ¢nk˜ .TyCA T\®› ™m`tsž œ˜ Ÿ› T˜AW`˜ db› ¨ rk Ÿ› š¤  Aqm˜ @¡ ¨ r•@ž  An Cd§ TlJA ¯¤A› d` .( 1588-1637) Amky ”AF w¡ Ÿyy¤C¤± perpetual) Tb¶d˜ T•rl˜ AbbF rbt`§ A• ©@˜ (impetus) œz˜ T`ybV œhf˜ :¨˜At˜ š¦Ast˜ rV ,(motion «?¨CA ry  Ÿk§ œ˜ A› T•r˜ Ÿˆ œs˜ ’wt§ ÐAm˜» ¨¡ -Ahsfž T•r˜ ¯- T•r˜ ¨ ryŒt˜  AtntF³ Y˜ š¥s˜ @¡ £ A’ .rysf Y˜ At ¨t˜

(Vacuum) Žrf˜ 5.3 rbtˆ .dq˜ @n› MAqž ™› £ w¤ TyžAk› ¤ (vacuum) Žrf˜ whf› A• (Leucippus 5th century BC) xwby•wy˜ šA› ,() T§C@˜ T§r\n˜ ¤d§¥› T•r˜ ¨FAF ¢ž± ww› Žrf˜  (Democritus 460-370 BC) ªrqm§ ¤ Aristotle) wWFC £@yml ¤ (Plato 427-423 BC) wV® ©r˜ œhf˜A .C@˜ ,–J ™› £ w¤ ™`§ wV®± Tbsn˜A ¢sfž Žrf˜ §r`t .(384-322 BC £¥lmtF Žrf˜  Ahny Ÿ› , ­dˆ ®m`ts› £ w¤ d` z dq ,wWFC A› T•r wktF Žrf˜ ¨ œs © T•r  –˜Ð Ylˆ E ,¢ TWy› ­ A› © AS§ —An¡ .T`ybW˜ dR wWFC £rbtˆ ©@˜ º¨K˜ ,(perputual motion) Tb¶ @¡ ™ Ÿ› .r¥ ¨• XFw˜ ,wWFC s ,At ¨t˜ ­wq˜ ry Ty˜AkJ abhors a) Žrf˜ qm T`ybW˜ ¤ horror vacui lWOm˜ wWFC ™m`tF .(vacuum A• Ÿ› œhnm .¯  Žrf˜ w¤ TyžAk› šw wmlsm˜ ºAml`˜ lt ¨CAf˜ œhny Ÿ› ,wWFC  ThybJ A Ÿylm`ts› £ w¤ ­rk dR šA› Ÿ› Žrf˜ ww Ÿ› Ÿ› —An¡ A• ™Aqm˜ ¨ .(Alpharabius 872-950) ¨ž¤ryb˜ AWF¤ Af’w› ¤@ Ÿ§@˜ TfF®f˜ Ÿ› ¤ .(Alhazen 965-1040) œyh˜ Ÿ :šA’ y (al-Biruni 973-1048) .«¢›dˆ Ÿ› Žrf˜ w¤ b ¨t˜ T\®ml˜ TlA’ T˜  —An¡ dw ¯»

“there is no observable evidence that rules out the possibility of vacuum.” šw Ty›®F³ ­CASl˜ ¨b¡@˜ rO`˜ ºAn r Šwž Ÿ› MAqž —An¡ A• œ\`› žA• .(discontinuous) ‰Wqt›  (continuous) rmts› w¡ ,ºASf˜ T`ybV šAq .(atomism) T§C@˜ T§r\n˜ Ylˆ dmt` žA• šAm˜ @¡ ¨ AJAqn˜ .zt ¯ ­C@˜ w• ‰› |CA`t ºASf˜ T§CrmtF  ‰Wqtm˜ ºASf˜ ¤džAs› T•r˜ ¨FAF ªrJ rmts› ºASf˜ w•  ­r\n˜ £@h˜ w¶¤Anm˜ šA’ ¤ .C@˜

12 (Partial Vacuum) ¨¶z˜ Žrf˜ 1.5.3 .Ty¤C¤± TShn˜ T§d ‰› Thw˜ Y˜ Žrf˜ w¤ TyžAk› Ÿˆ š¦Ast˜ Aˆ ¯¤Am˜ {` œ‹C .¨¶z Žr “l TyžAk› šw AFAF Cwmt§ MAqn˜ A• .ºA§zyf˜ Y˜ Tfslf˜ Ÿ› MAqn˜ ™qž š¦Ast˜ @¡  ¯ ,£A ³ @¡ ¨ TqAs˜ ¨t˜- ( 1608-1647) ¨lyKt§Cw AtsylžAf§ Trt˜ žA• A• .ŠwRwm˜ @¡ ¨ «rb• Tym¡ -() rt›¤CAb˜ Šrt Y˜   .Ty¶Am˜ ASm˜ ŠAn} Ah\¯ ­r¡A\˜ ™ A§ w¡ Trt˜ £@¡ Ÿ› ‘dh˜ ºAm˜ ¢Œlb§ ©@˜ YO’± ŠAf C³ w¡ CAt› 10  ^w˜ ,­ d`t› ¯¤A› œ‹C šAm`tF ¨lyKt§Cw Cr’ Ty˜AkJ³ £@¡ ™˜ .(suction pump) XfJ TS› TWFw  ºAm˜ T`ybW Xb r§ YO’± ŠAf C³ A• Ð A› Tr`m˜ ºAm˜ šd “b¶z˜ œ ­ ¤ds› Th ¤Ð Ab§rq 1 ¢˜wV wbž TˆAnO ¨lyKt§Cw A’ ?r º¨J ŠAf C  ^® “b¶E ¢ ºAž ¨ Twtfm˜ Th˜ rm‹ –˜Ð d` .“b¶z˜A £°› Až@  “As˜ ºAm˜ ŠAf C ¸Ak§ ŠAf C³ @¡ .œF76 b} wbž± ¨ “b¶z˜ ºwh˜ XŒR w¡ ­r¡A\˜ £@¡ ¨ bs˜  ‘r`ž .CAbtˆ³ Ÿy` “b¶z˜ TA• .(atmospheric pressure) A’ ,¨lyKt§Cw šAmˆ ( 1623-1662) šAkFA zyl œlˆ  d` œkt ¨t˜ ­wq˜ œh T˜¤A› Ylˆ ¢›Amt¡ } ¢nk˜ .r› ­dˆ ¢tr ­ Aˆ ”w ºASf˜ °m§ ©@˜ º¨K˜ œh ¤ (maximum height) YO’± ŠAf C³ ¨ A› TAfJ ­ A› –˜An¡  —@ž ºAml`˜ Tyb˜A‹ Aqtˆ A• . wbž± ™ “b¶z˜ .ºASf˜ –˜Ð rbˆ rKtn§ ºwS˜  –˜Ð ¨ œht žA• .ºASf˜ –˜Ð °m «wF —An¡ º¨K˜ w¤ ¯ ¢ž dqtˆ y ,A›Am Af˜A› šAkFA ’w› A• ¤ ºAml`˜ Ÿ› d§d`˜ ‰› Aˆzž ­dˆ Y˜ «  @¡ £ Aqtˆ  œ‹C .(vacuum) Žrf˜ :¢sfž Ÿˆ AˆA šA’ .–˜Ð Ylˆ b ¢nk˜ Ÿk˜ ,Aht} Ab³ TyRr Ÿ› A’®Wž r¡w\˜ ‰ym rJ TyžAk› ¨fk ¯» .«Ah·W Ab³ TyRrf˜ £@¡ {’An Xq ­d¤ ­r¡AZ ¨fk

“In order to show that a hypothesis is evident, it does not suffice that all the phenomena follow from it; instead, if it leads to something contrary to a single one of the phenomena, that suffices to establish its falsity”. b˜ A› Ÿk˜ .Žrf˜ Y˜ Ÿyy¶A§zyf˜ ­r\ž ¨ Ÿy˜ Y˜ CAt˜ £@¡ ¶Atž   .dq`  Cw›±

(Ether) ry± 2.5.3 (double slit experiment) žw§ ¨qJ Tr d` ºwSl˜ Tywm˜ T`ybW˜ Ab ‰› TysyVAnŒ›¤rhk˜ T`J± ‘AKt• ¤ 1801 TnF (Thomas Young 1773-1829) žw§ xA›wt˜ ,(Heinrich Hertz 1857-1894) z ry¡ L§rn§A¡ ‘rV Ÿ› (electromagnetic waves) :¨˜At˜ š¥s˜ whw§  Ÿyy¶A§zyf˜ Ylˆ A• «?TysyVAnŒ›¤rhk˜ Awm˜ ™qtn y•»

13 .(16)¢y ™qntt˜ XF¤ Y˜ At w›±  w¡ —@ž d¶As˜ Aqtˆ³ A• .(Ether) ry± ­ Am ºwlm› wk˜  wrt’ Tybsn˜ CwhZ ‰› wy¶A§zyf˜ Ahnˆ Yl ¤ ®§wV rm` œ˜ ­r\n˜ £@¡ Ÿk˜ .Žrf˜ ¨ ™qtn TysyVAnŒ›¤rhk˜ w›±  ¨¡ T§d˜ ­r\n˜ .T}A˜ r• Žrf˜ whf› b} (quantum field theory) Tymk˜ šwq˜ T§r\ž CwhZ ‰› .dyq`

(Time) A›z˜ 6.3 .­ry˜ ¤ xAbt˜³A Awf› ,«?Ÿ›z˜ T`ybV ¨¡ A›» š¦Ast˜ Ÿˆ TA³ C A• (Antiphon the Sophist, 5th century BC) wfytž Ÿywslyf˜ ‰› A§db˜ žA• Ÿk˜ ¨qyq ry‹ Ÿ›z˜  wfytž rbtˆ .( 540-480 BC) xdyny›CA ¤ AhAK› Af’w› xdyny›CA @  .(measure) xAy’ ¤ (concept) whf› Ÿˆ ­CAbˆ ry‹ Asž³  T\®› Ylˆ dmtˆ ¢t .(illusion) Am¡¤ Ÿ›z˜ rbtˆ y ¨RAm˜A ,(present instant) rRA˜ T\˜ ¨ ¯ Ÿ›z˜ Ylˆ ryt˜ Ylˆ C A’ T\˜ ¨¡ rRA˜ T\˜ Ÿk˜ .d` Ÿ§ œ˜ (future) ™bqtsm˜ ¤ Y˜¤ d’ (past) œ¡r}A`› rbtˆ , Aqtˆ³ @h˜ r• .AhFAy’ Annkm§ ¯ ¤ (instantaneous) Tyž ,rmts› ryŒ ¨ º¨J ™k ¢˜A Ylˆ Yqb§ º¨J ¯  (Heraclitus) HWyl’r¡ .Tqyq Ÿ›z˜ rbt`› r’ . wk˜ “l T\˜ “l ’w˜  (Plato 427-347 BC) wV® dqtˆ £@¡ (period) C¤d˜ AqAW› £rbtˆ ¤ T§¤Ams˜ r± T•r ‰› Ÿ›z˜ wV® rbtˆ ¤ T•r˜ ‰› Ÿ›z˜ r’ ¨ (Aristotle) wWFC £@yml ¢q¤ .T•r˜ dq .Ÿ›z˜ dw§ ¯ Amhž¤db ,ryŒ ¤ T•r w¤ ‰› AWb r› Ÿ›z˜ w¤ “numeration of continuous) «­rmtsm˜ T•rl˜ œy’r » ¢ž Ylˆ Ÿ›z˜ }¤ «d` T\˜ Y˜ ™b’ T\˜ Ÿ› ryŒt˜ dˆ» r ryb`t ¤ (movement” wWFC± Tbsn˜A ’w˜A .(“number of change in respect of before and after”) T§d ¯- ¨¶Ahž ¯ Ÿ›z˜  wWFC dqtˆ .¢sfž ryŒt˜ Hy˜ ¢nk˜ ryŒtl˜ xAy’ w¡ .­rmts› Tyn ¤Ð ¢ž dqtˆ Am• ,¢tn› w¡ ©@˜ ºASf˜ Hkˆ -¢˜ T§Ahž ¯ ¤ (cyclic) A§C¤ ¢žw• TyžAk› ¨¡ K’wž ¨t˜ Ÿ›zl˜ «r± P¶AO˜ Ÿ› ­rt r› Aml• Crkt§  Ÿkm§ ,T§Ahž ¤\¤ T§d Ð ¤ ,Ay¶Ahž ¯ ¢žw• šdb ­ A³ ¤ (creation) “l˜ Ÿ› Tlsls rm§ wk˜  Aqtˆ³ —Anh .Ÿ›z˜ Ÿ› Ÿ›z˜ stk§ , wk˜ ww Xb r› Ÿ›z˜ w¤  CAbtˆ .(annihilation) ¨ ¤ Tm§dq˜ dnh˜ ryVAF ¨ CwOt˜ @¡ Ylˆ Cw`˜ Ÿkm§ .T§C¤d˜ Ty}A .(cosmology) Ayžwk˜ œlˆ šw ­r}A`m˜ šAmˆ± {` ¨ ryŒt˜ ,¨¶A§zy º¨J w¡ Ÿ›z˜ :’w› T® Ÿy TfF®f˜ ©C C šw AJAqž AS§ dž Am• .¨¶A§zy ry‹ Ÿ›z˜ ,¨¶A§zyf˜ º¨K˜ w¡ Ÿ›z˜ T§C@˜ T§r\n˜ Cwh\˜ Tytž- T`Wqt›  ­rmts› Tyn Ð Ÿ›z˜ A• Ð A› £A  ™kl .A§C¤  ,¯  Ayhtn› Ÿ›z˜ A• Ð A› ¤ -­ Am˜ Tynb˜ (atomism) .¨fsl £A  ©± TblŒ˜ Ÿk œ˜ Ÿk˜ ,£¤džAs› ¤ ¢

.rKˆ ‰FAt˜ rq˜ ºAmlˆ ¢l` A› ¤ ­wq˜ ‰› wWFC ¢ A’ A› Ÿy ¢AKt˜ ^¯(16)

14 ­dˆ ¢¤ ,–y›An§dl˜ ¢nyžw’ T‹Ay} (Newton 1642-1726) Ÿ wyž š¤A A›dnˆ :Ahn› Ay˜AkJ .¢nyžw’ ¢y “qt ©@˜ , (inertial frame) ¨˜AW`˜ œl`m˜ ,QA œl`› w¤ • Tmyqtsm˜ T•r˜ ¨ ™mt ¨t˜ ¤ (perputual motion) Tb¶ T•r w¤ • .(rectilinear uniform motion) Tm\tnm˜ E A› ¤ .{`b˜ AhS`b˜ Tbsn˜A TtA Tˆrs —rt ¨t˜ œ˜A`m˜ ¥Ak • .Twms› Tˆrs˜ œy’ ™•  ,Tl ŸyW˜ (space) Akm˜ ¤ (time) A›z˜  TyRr Ÿ› ”®Wž³ ™ Y˜ Ÿ wyž ™}w Ay¶A§zy An¶A• ¢y˜ Tbsn˜A Akm˜ ¤ A›z˜A .(absolute) AqlW› A›whf› zynby˜ Ÿ› ™• rVAK§ œ˜ .Ty¶A§zyf˜ r¡w\˜ ¢y d ©@˜ rsm˜ Am¡ ¤ ©r˜ Ÿ wyž (Immanual Kant 1724-1804) XžA• ¤ (Gottfried Leibniz 1646-1716) .(intellectual concepts) Tylqˆ œy¡Af› - dˆ± ¤ Akm˜ @• ¤- Ÿ›z˜ rbtˆ y ¯ ¤ ºAyJ± ¤ d± ¢˜® —rt © A› d` Y˜ A›z˜ ryK§ ¯ Amh˜ Tbsn˜Ab .(entity that flows) “dt§ Ay• (general relativity) T›A`˜ Tybsn˜ CwhZ Yt šA˜ @¡ Ylˆ Ab§rq Cw›± lZ Amy TWqn˜ £@¡ Y˜ w`nF . Akm˜ ¤ A›z˜ Y˜ Ažr\ž Tyfy• ry‹ ¨t˜ Martin) r‹d§A¡ Ÿ CA› ‘wslyfl˜ Ÿ›z˜ šw ©r˜ @h ­rqf˜ £@¡ œtž .d` :(Heidgger 1889-1976 .«¢sfž Ÿ›z˜ Ÿž ™ ,Ÿ›z˜ ™ Ly`ž ¯ Ÿž»

(The Solar System) TysmK˜ Tˆwmm˜ 4 gravitational) TyÐA˜ wžA’ ‘AKt• ¨ A›A¡ C¤ •wk˜ T•r TFC b`˜ Trtqm˜ ÐAmn˜ CwW ‰Atž  š¤AnF .­d§d œy¡Af› Ÿ› ¢bA} A› ¤ (law ºAml`˜ h¤ ¨t˜ ™•AKm˜ ¤ ,T¤rWm˜ Tl·F± Tyˆwž ,T•r˜ £@¡ }w˜ œ , •wk˜ —r T`Atm˜ Tlm`tsm˜ Tq§rW˜ }w ¯¤ dbnF .­r› ™• ¨ .ÐAmn˜ £@¡ Ahylˆ yn ¨t˜ TyFAF± CAk± CwWt˜ Stq› §CA Ylˆ r`ž A›dnˆ ­dwt› žA• ¨t˜ T®˜ Tm\ž± ™yOft˜ Ÿ› º¨K L’AnnF –˜Ð d` :¨¡ ¤ ¯ –lf˜ ¨ ¢lmˆ (Johannes Kepler 1571-1630) rlb• d  rbt`§ w¡ ¤ T®˜ Ÿy A\ž d’ :(Ptolemaic system) xwmylW A\ž • . wk˜ z•r› w¡ A¡z•r› ¤ —rt ¯ TtžA |C± wk˜ z•r› ¨¡ HmK˜  rbt`§ :(Copernican system) –yžrw• A\ž • .HmK˜ šw C¤d •wk˜ ‰ym  ¤ y rt˜ s T®˜ Tm\ž± r :(Tychonic system) ¨¡r A\ž • |C± rbt`§ y .ŸyqAs˜ Ÿy›A\n˜ Ÿ› AWyl £CAbtˆ Ÿkm§ .¨n›z˜ A¡C¤d ¨¡ ¨t˜ HmK˜ šw C¤d «r± •wk˜ Ÿk˜ wk˜ z•r› .|C± šw C¤d

15 T•r˜ ¢nyžw’ Y˜ šw}w˜ ‘dh Tyklf˜ rlb• šAmˆ TK’Anm –˜Ð ‰btž ¤ T•rl˜ ¢¶ Abm Ÿy`tsž ¤ Ÿ wyž PJ PmqtnF ry± ¨ ¤ . •wk˜ . •wk˜ T•r˜ ¨¶A§zy rysf Y˜ šw}wl˜ •wk˜ T•r˜ rlb• Ÿyžw’ ¤ ,rlb• ¢ A’ A› T}A ,CAk± CwW TFC w¡ And¡  Y˜ ­CAJ³ Cd§ w˜ ¤ –˜Ð ™` ‰yWtsž Ÿ˜ ¤ ¨§CAt˜ žA˜ ¨ ry• “m`tž Ÿ˜ Ÿn @h˜ w§dyf˜ ‰VAq› ‰› ­Ewm˜A ¨l§ Am› ºz ­ºr’ AS§ § . ’w˜ “yS˜ Až C :TfO˜ Ylˆ ­ wwm˜ (video clips) http://science.larouchepac.com/kepler/astronomianova/home/1 :fO AS§ Ÿkm§ http://science.larouchepac.com/kepler/newastronomy/newastronomy.html

http://www.keplersdiscovery.com/Intro.html :Y˜ Šwr˜ Ÿkm§ ,Ty§CAt˜ A›wl`m˜ Ÿ› d§zm˜ ¤ .™y}Aft˜ Ÿ› d§zm˜ https://en.wikipedia.org/wiki/Geocentric_model

https://en.wikipedia.org/wiki/Heliocentrism .¨l§ Amy ry• Ah›dtsnF ¨t˜ AlWOm˜ {` r•@nF º¨J ™• ™b’

(Some Terminology) AlWOm˜ {` 1.4 ™yhst˜ T§zylž³ ¤ Tyr`˜ ŸytŒl˜A AlWOm˜ {`b˜ Tm¶A’ ¨l§ Amy ¤d .£®ˆ ­Cw•@m˜ ‰rm˜ T`˜AW›

(Planets) •wk˜ 1.1.4

Ÿy`˜A «r§  - (light polution) ¨¶wS˜ wlt˜ Ay‹ ¨ - Asž³ ‰yWts§ :¨¡ ¤ ¯ (planets) •w• TtF ­ rm˜ . CAWˆ :Mercusry • .­r¡z˜ :Venus • .§rm˜ :Mars • .©rtKm˜ :Jupiter • .™E :Saturn • .xwžC¤ :Uranus •

16 xwžC¤ «rž  ‰yWtsž Anž œ‹C .(moon) rmq˜ ¤ (sun) HmK˜ Y˜ TAR³A .¢tmtˆ ¤ ¢t•r ºWb˜ (17)Ab•w• £¤rbt`§ œ˜ ºA›dq˜  ¯ ­ rm˜ Ÿy`˜A •w• d` ¤ r .(telescope) CA\nm˜A Ktk§ •w• š¤ xwžC¤ rbt`§ ‰yWtsž ¯ •w• wh .(Neptune) wtbž w¡ TysmK˜ Tˆwmm˜ ¨ ‘¤r`› ™b’ T§r\n˜ šAm`tF £ ww wy¶A§zyf˜ bn d’ ¤ ­dˆAs› ¤d ¢t§¦C .CA\nm˜ šAm`tF ¢t\®›

(Some Terms for Orbits) CAsm˜ }w˜ AlWOm˜ {` 2.1.4 Trtqm˜ Tm\ž± }¤ dnˆ Ah AOnF ¨t˜ AlWOm˜ œ¡ ¨l§ Amy PlnF rqf˜ ¨ «rnF Am•- Tm\ž± £@¡ yn .rlb• ™b’ •wk˜ T•r }w˜ T•r }w˜ ­dyw˜ Tq§rW˜  (Aristotle) wWFC |rt Ylˆ -Ty˜wm˜ .Ahn› §z› ¤ Tm\tnm˜ T§r¶d˜ T•r˜ šAm`tF ¨¡ •wk˜ .HmK˜ ºAntF wn˜ ‰ym ¨¡ ¤ :TtA˜ wn˜ = fixed stars • T•r •wk˜ Ahylˆ —rt§ ­r¶ Ÿˆ ­CAbˆ w¡ :r§¤dt˜ –l = epicycle • .Tm\tn› T§r¶ ­r¶ z•r› Ahylˆ —rt§ «r ­r¶ Ÿˆ ­CAbˆ w¡ :™’An˜ = deferent • r§¤dt˜ –l .|C± Ÿˆ lt§ ¤ ™’An˜ ­r¶ z•r› :™’An˜ z•r› = eccentric • ^®› An`R¤  .xwmylW ¢rt’ ¨˜Ay z•r› :CAsm˜ šd`› = equant • .Tm\tn› T•r r§¤dt˜ –l z•r› T•r ^®yF TWqn˜ £@¡ ¨ TWqn˜ £@¡ dnˆ HmK˜ Ÿˆ wk§ A› d` •wk˜ wk§ :¤± = aphelion • .Ayžd˜ ¢tˆrs —rt§ ¤ £@¡ dnˆ HmK˜ Ÿ› wk§ A› r’ •wk˜ wk§ :{yS˜ = perihelion • .«wOq˜ ¢tˆrs —rt§ ¤ TWqn˜ .{yS˜ ¤ ¤± Ÿy ™O§ ¨˜Ay X :Abq˜ X = line of apsides • . •wk˜ Cd› ™kJ :P’Až ‰W’ = ellipse • š® T§¤Ams˜ Tbq˜ Ylˆ HmK˜ AhmFr ­r¶ w¡ :HmK˜ Cd› = ecliptic • .TnF Ažrbtˆ  Ty›wy˜ ºAms˜ Tb’ T•r ¨¡ ¤ :Y˜¤± T•r˜ = first motion • .—rt A¡Ažrbtˆ  Ay›w§ Ahsfž šw |C± C¤ ¤ TtA |C± Tbsn˜A •wkl˜ Tybsn˜ T•r˜ ¨¡ ¤ :TyžA˜ T•r˜ = second motion • .TtA˜ wnl˜ . •wk˜ T•r TFC šw Ty§rt˜ AntlC µ dbž Ažwˆ

¤ (wondering star) šw˜ œn˜ ¨n` ¤ Tyq§r‹³ TŒl˜ Ÿ› Ahl} (planet) •w• Tymst˜(17) .(wonderer) šw˜

17 (Where Are the Planets?) ? •wk˜ ¨¡ Ÿ§ 2.4 :Xr˜ Ylˆ wwm˜ w§dyf˜ ‰Wq› Ÿ› ºz ™m`tsnF http://science.larouchepac.com/kepler/astronomianova/part1/2 Ÿkm§ .¨l§ Amy (vd1) : ¢˜ Ÿ§z›C ,CwOt˜ Ylˆ ¹CAq˜ ­dˆAsm˜ ¨¶r› ‰rm• :Tyž¤rtk˜³ AfO˜ Ylˆ ­dwtm˜ AWWm˜ ¤ CwO˜ šAm`tF AS§ http://www.keplersdiscovery.com/Intro.html http://www.keplersdiscovery.com/Intro2.html http://science.larouchepac.com/kepler/newastronomy/newastronomy.html dbž ¤ Tyml`˜ Tyhnm˜ wW -¨mlˆ A ©•- AnAKktF ¨ ‰btnF .T\®m˜A

(Observing the Sky) ºAms˜ T\®› 1.2.4 .¨¶wS˜ wlt˜ bs Tylyl˜ ºAms˜ šAm «rž  rRA˜ ’w˜ ¨ Anylˆ `O§ Annyˆ ‰tmž  An˜ Ÿkm§ ¨k˜ Tynks˜ A`mt˜ Ÿˆ A›Am d`tbž  Anylˆ y ­rk Ÿ§wkt˜ (vd1 0:42-1:59) Y˜ Šwr˜ Ÿkm§ ,“§rW˜ CAOt³ .šAm˜ @h œn˜ .T•rl˜ ‰§rs ‰› šAmK˜ Th Ažr\ž  ™yl˜ ¨ ¢t§¦C Ÿkm§ Amˆ Am§d’ ™m`ts§ A• ©@˜ (Polaris) šAmK˜ œž w¡ ¢t•r T\®› `O§ ©@˜ T`}r› ­ryb• ­rk wVA› Anž An˜ ¤db§ ,Ty›wy˜ T\®m˜ Ÿ› .£A ³ d§dt˜ šAmK˜ œž r’ rm§ Cw› šw Ay›w§ C¤d ¨t˜ ¤ -T§¤Ams˜ Tbq˜- wn˜A . wn˜ H•A`m˜ £A ³ ¨ dw Tmy˜w˜ ± ,r• º¨J ¯ ¤ An˜w T§¤Ams˜ Tbq˜ C¤ ­rk Ez` Tywn˜ ºAmsl˜ Ty˜¤± A\®m˜ :”Cwf˜ {` ‰› (vd1 2:08-4:05) rmq˜ TˆrF An˜ ¤db –˜Ð Y˜ TAR³A .(vd1 4:07-4:40) ¢lkJ rmq˜ ryŒ§ • .T§¤Ams˜ Tbq˜ TˆrF Ÿ› W .(vd1 5:19-6:29) T§¤Ams˜ Tbq˜ T•r Ÿ› W HmK˜ T•r ¤db • “± Y˜ r’± wn˜ Ay›w§ CAqž A›dn`˜ –˜Ð Ÿ› d•tž  ‰yWtsž .–˜Ð T\˜ HmK˜ ¤r‹ Ak› r’ (horizon)

wn˜ £@¡ ymF .(vd1 8:55-9:38) ºAms˜ Tbq˜ Tbsn˜A —rt wž —An¡ • .Ah˜w bs (planets) •w• T·yW T•r ¨¡ ¤ (first motion) Y˜¤± T•r˜ T§¤Ams˜ Tbq˜ T•r Yms ‰› wn˜ Ty`R¤ CAqž  Ÿkm§ Ÿk˜ .­ rm˜ Ÿy`˜A Aht\®› `O§ d T•r˜ £@¡  Ÿ› d•tl˜ (vd1 8:34-8:54) Tyn›E rt Ylˆ TtA TyRC œ˜A`› .®` ­ ww› xwl˜ µ Annkm§ ,(18)Ÿ›z˜ Ÿ› ­rbt`› ­dm˜ Tylyl˜ ºAms˜ An\¯  d` . •wk˜ T•r (pattern) Xmž Ÿˆ bn˜ .T\®m˜ Ÿ› Až¤r’ ™qž œ˜  wqˆ Ÿˆ œlktž Ÿž(18)

18 (Lokking for Patterns) AyW`m˜ œy\n 2.2.4

Tmhm˜ A›wl`m˜ rtsž  § ,A› ­r¡AZ šw (data) AyW`› ‰m d` ry§A`› s AhfnOž ¤ An A\®› œ\nž  § –˜Ð Ÿ› Ÿkmtn˜ .Tyqb˜ Ÿ› .T§¤Ams˜ r± T•r TFC w¡ And¡ .TFCd˜  ­r¡A\˜ Ÿ› Plts :¢sfž rW§ ©@˜ š¥s˜A «?T§¤Ams˜ r± T•r ¤dž ¤ Ož y•»

.(vd1 10:40-12:33) d¡AJ ¢f}¤ š¤Až A› T§¦r˜ .‰rm• Ahlm`tsž TtA œ˜A`› Y˜ Atž ,T•r © }w˜ ,‘¤r`› w¡ Am• ?™m`˜ Am ,—rt§ ºAms˜ ¨ º¨J ™•  ¨¡ Ahthw› Anylˆ ¨t˜ Ty˜AkJ³ Ÿk˜ .(19)Ah˜ Tbsn˜A «r± A•r˜ Ož ¤ Tm\tn› T•r Ylˆ b˜ Annkm§ Annkm§ ¨t˜ (vd1 8:08-8:17) Ty›wy˜ T§¤Ams˜ Tbq˜ T•r —An¡ An\ Ÿs˜ T§¤Ams˜ r± ™• Ab§rq ,–˜Ð Ylˆ E .(background) ‰rm• Ah˜Am`tF Ankm  ©¤AmF r © T•r }¤ Annkmy .(20)T•r˜ £@h˜ Tbsn˜A TtA Hipparcus of Nicaea 190-120) Lr A• .TtA˜ wn˜ £@h˜ TW§r ‰R¤ Ÿ› ¨t˜ ¤ TtA˜ wnl˜ T§¤AmF (catalogue) TW§r w`R¤ Ÿ§@˜ ™¶¤± Ÿ› (BC An›Amt¡ šwž  Annkm§ ,TW§r˜ £@¡ Ÿ› ºAhtž³ d` .œž 1000 Ylˆ wt .(vd1 8:18-8:34) TyžA˜ T•r˜ ¤ wn˜ £@h˜ Tbsn˜A —rt ¨t˜ r± Y˜ .A›w§ 29, 5 A¡C¤ ¨t˜ T§r¶d˜ rmq˜ T•r —An¡ •

(vd1 Aˆ ™• ¨l}± AhžAk› Y˜ w` ¤ ­r¶ “¤ HmK˜ —rt • .(ecliptic) HmK˜ CAs› Yms§ Cdm˜ @¡ .6:46-7:40) (vd1 10:40- §rm˜ •w• T•r •wk˜ T•r Ÿˆ šAm• @n˜ • ¤ ,T`§rF wk AžAy Tm\tn› ry‹ T•r˜ £@¡  Ayl rh\§ .12:33) CAs› Ÿ› Ab§r’ Yqb§ CAsm˜ Ÿk˜ . Tql œFr «r AžAy ¤ ,T·yW AžAy .«r± •wk˜ Ylˆ ¢sfž º¨K˜ “bWn§ .(21)HmK˜ .Tl·F± rV ’¤ A ,T§¤Ams˜ r± T•r }¤ Ÿ› ºAhtž³ d` Ÿ› .¢ wqnF ©@˜ whm˜ £A  ¤ Šwž d§ ¤rWm˜ š¥s˜ T`ybV  ^¯ :Am§d’ rV ¨t˜ Tl·F±

?Y˜¤± T•r˜ bF A› • ?¯  |C± T§¤Ams˜ r± ¢bK ™¡ • ?A¡d` Tr`› Ÿkm§ ™¡ ¤ ?|C± Y˜ r’ T§¤Ams˜ r± © • ?rmq˜ ¤ HmK˜ @• ¤ •wk˜ ‰’wm bntž  Ÿkm§ ™¡ •

,™ybq˜ @¡ Ÿ› º¨J ¤ Ty˜AkJ An AO A›dnˆ .Ty›wy˜ An Ay ¨ ry• Tq§rW˜ £@¡ ™m`tsž(19) .™y}Aft˜A œthž œ ­rybk˜ ­CwO˜ ‰› ™›A`t˜A ¯¤ dbž .Y˜¤± T•r˜ :Tymst˜ bF w¡ @¡(20) .HmK˜ Ÿ› ¢r’ ¯ ¤ ¢t•r TˆrF Hy˜ ¤ ¢mFr§ ©@˜ CAsm˜ dOqž(21)

19 ¨t˜ ­dm˜ ¨¡ A› ¤ ?Tyql˜ ¢t•r §rm˜ •w• wq§ ­r› œ• • ?¢n› d ©@˜ ¢žAk› Y˜ w`y˜ §rm˜ Ah’rŒts§ ? •wk˜ T•r bF A› • Y˜ rAsž Ažwˆ .Aht˜A`m˜ ¨§CAt˜ y rt˜ s Ab§rq Tl·F± Anb C dq˜ .Trtqm˜ AA³ CwW Tqrm˜ An› T˜¤A› ¨ ¨RAm˜

(Where to Start?) ?dbž Ÿ§ 3.4 ^®m˜ Tbsn˜A A• £An›d’ ©@˜ T§¤Ams˜ r± T•r˜ Anf}¤  ^¯ A• An›Amt¡ .TtA |C±  Ažrbtˆ Anž ¨n`§ Am› ,|C± WF Ylˆ Ly`§ º¨J -œl`ž Am•- (movement) T•r˜ Ÿk˜ .Tylyl˜ ºAms˜ ¨ £rž A› } ¤ š¥s˜A .(absolute) AqlW› Yn`› ®m§ ¯ —rtm˜ ¤ Ÿ•As˜A (relative) ¨bsž Ÿˆ dtž Ÿy ™’± Ylˆ «?r›± ¨ ™Ofn˜ Tq§rV —An¡ ™¡» :¤rWm˜ . rt’ ¨t˜ AyRrf˜ lt› Ylˆ ­r\ž ¨qlž Ažwˆ .T§¤Ams˜ r± T•r

(The First Movement) Y˜¤± T•r˜ 1.3.4 :Am¡ Ay`ybV rysf —An¡ .Y˜¤± T•r˜ TK’Anm ¯¤ dbž

Anž Amb .Tqyq˜ w¡ £ržA› :TžA ¨ CAyt³ @¡ nOž  Ÿkm§ :TtA |C±  ‰yWtsž ,yO˜ w˜ Ylˆ An˜d ¨t˜ -–yžAkym˜ Ÿyžw’- ¹ Abm˜ –lmž ¯ wks˜» :(22)wWFC db› Ylˆ Amtˆ³ AS§ Annkm§ Am• .Tys˜ An A›wl`m “ž  TfF®f˜ {` dqtˆ .|C± Ab r§rbt˜ «As°˜ Ty`ybW˜ T˜A˜ ¨¡ :(23)Ty˜At˜ r¡w\˜ Y˜ © ¥§  § Ahsfž šw |C± T•r .d¤ £A  ¨ T§w’ A§C • .£zf’ Ak› Ÿˆ Aflt› ¢VwqF Ak› wk§ ºAms˜ ¨ Ažd zf’  • .d¤ £A  ¨ wk s˜ T•r ¤ CwyW˜ ryV £A  • .Tn•AF |C±  ¨n`§ r¡w\˜ £@¡ AyŒ

C¤d ¨t˜ ¨¡ |C± :A›Am H•A`m˜ CAyt³ —An¡ :Ahsfž šw C¤d |C± šw |C± C¤ wrt’ Ÿ§@˜ ™¶¤± TfF®f˜ Ÿ› .TtA T§¤Ams˜ Tbq˜ ¤ dR ’wm˜ @¡ |CA` œ‹C ¤ .(Heraclides of Pontus 390-310 BC) dyl’r¡ Ahsfž (astronomers) Ÿyyklf˜ {` šAmˆ ¨ Cw•@› £dž Anž ¯ (intuition) AnFd

wkt ¨t˜ T§¤Ams˜ r± Hkˆ ,|C± Ylˆ dwt ¨t˜ As±A “l`t§ dbm˜ @¡  ^¯(22) .Tflt› Ahl`§ Am› (Ether) ry± ­ A› Ÿ› .T˜AW`˜ db› bs T·VA ¨¡ ˜ £@¡  ^¯(23)

20 L’Až Am• .(Aryabhata 476-550) A AhA§C ©dnh˜ –lf˜ œ˜A`• TfF®f˜ ¤ ¨Jw’ ¨lˆ ¤ (al-Tusi 1201-1274) ¨FwW˜ šA› Ÿ› Ÿymlsm˜ Ÿyyklf˜ {` –yžrw• ¨klf˜ w¡ º¯¥¡ rhJ Ÿk˜ .TyžAk›³ £@¡ (Ali-Qushji 1403-1474) .HmK˜ šw |C± C¤ rt’ –˜Ð Ylˆ E ©@˜ (Copernicus 1473-1543) ¨b§rt˜ Ab³ ºAWˆ³ (Foucault 1819-1868) w•w CA\tž Anylˆ A• Ÿk˜ .(Foucault pendulum) w•w xwn Trt˜ £@¡ ‘r` .Ahsfž šw |C± C¤d˜ :‰˜AV A›wl`m˜ Ÿ› d§zm˜ https://en.wikipedia.org/wiki/Foucault_pendulum https://www.youtube.com/watch?v=aAN8yenz3nA ’wm˜ A• A§ (first motion) Y˜¤± T•r˜ Ažrs Anž rbt`nF ¨l§ Amy (T§¤Ams˜ Tbql˜ Tyl` T•r ¤ Ahsfž šw |C± C¤ ) ¢ Ÿ›¥ž ©@˜ Tm˜ Y˜ ”rWt˜ ™b’ .(second motion) TyžA˜ T•r˜ TFC Y˜ ™qtnž ¤ Ahylˆ yn ¨t˜ ¹ Abm˜ {` ¯¤ L’AnnF ,Trtqm˜ Tm\ž± CwWt˜ Ty§CA .Tm\ž± £@¡

(Movement) T•r˜ bF 2.3.4 }¤ Y˜ ‘dh T§¤Ams˜ r± T•r TFCd˜ Y˜¤± ¯¤Am˜ žA• ‘d¡± Ÿk˜ .¨®f˜ œFwm˜ XbR ¤ •wk˜ ‰’w› ‰’w ‘dh T•r˜ š¦Ast˜A .T•rl˜ bF A§ w˜¤A Ÿ§@˜ (24)“§r‹³ TfF®f˜ E¤r ‰› ryŒ :rV ©@˜ XFw˜ Tytž —rt Ahž  ?Ahsfž ºAql Ÿ› —rt ¨t˜ ¨¡ •wk˜ ™¡» «?r bF —An¡  ?¢y Ly` ©@˜ ÐA› , rt’ ¨t˜ (first motion) Y˜¤± T•r˜ rysf lt› AnK’Až dq˜ TtA |C± rbtˆ T§db˜ ¨ ?(second motion) •wkl˜ TyžA˜ T•r˜ Ÿˆ  ^¯ .XFw˜ T•r Tytž ¨¡ (first motion) Y˜¤± T•r˜  ¨n`§ Am› šAm`tF š¤Až  Annkm§ .Ahsfž ºAql Ÿ› —rt ¯ (fixed stars) TtA˜ wn˜ sy˜ TyžA˜ T•r˜ Ÿk˜ .(second motion) TyžA˜ T•rl˜ rysft˜ Hfž Ÿyrt’ œ§dq œ TyAR³ dyq`t˜ £@¡ ‰› ™›A`tl˜ .Y˜¤± T•r˜ TVAsb ¤ AAR ‰› XFw˜A Tyl• T•r˜ XC Ÿ› —An¡ :T•r˜ £@¡ rysft˜ wWFC rysf Y˜ šAm˜ ™ybF Ylˆ r\nn˜ .Ÿyn³ Ÿ› Xyl A¡rbtˆ Ÿ› —An¡ : •wk˜ T•r˜ ©rOnˆ Tbsž ¨t˜ As±A .A¡r¡w Ylˆ As°˜ Ty`ybW˜ T•r˜ dmt` • Tbsn˜A Hk`˜ ¤ |C± z•r› wž Xqs Tb˜AŒ˜ ¨¡ Ahy |C± ¤ ºAm˜ •wk˜ T•r Ÿk˜ .CAn˜ ¤ ºwh˜ Am¡ Ÿyb˜AŒ˜ Ah§rOnˆ ¨t˜ As°˜ H›A rOnˆ w¤ rt’ Y˜ wWFC ‰ Am› “bF Amˆ A§C@ lt .ºAms˜ ¤ T§¤Ams˜ r± Ÿ› ®• wk§ ©@˜ (Ether) ry± šAmˆ± Tyb˜A‹  ¯ š¥s˜ @h wmt¡ Ÿ§@˜ ™¶¤± œ¡ wžA• “§r‹³  z˜ Annkm§ ¯(24) . ˆAR d’ «r±

21 T§¤Ams˜ r± Hkˆ wks˜ ¨¡ |C± Ylˆ As°˜ Ty`ybW˜ T˜A˜ • .(perputual motion) Tb¶d˜ T•r˜ ¨¡ Ty`ybW˜ Aht˜A ¨t˜

 ,Ÿ›z˜ Ÿ› ­d› d` Tyl}± Ahty`R¤ Y˜ w` T§¤Ams˜ r±  Am • .T§r¶ Aht•r § •wk˜ T•r -|C± Hkˆ- (ideal) ¨˜A› Ak› ºAms˜  Am • .Tm\tn› T§r¶ wk  œysq œ ,Ty˜AkJ³ £@¡ ™˜ .T\®m˜ ‰› “wt ¯ Ty¶Ahn˜ Tytn˜ Ÿk˜ ,|C± ‰› (concentric) ­z•rmtm˜ (spheres) rk˜ Ÿ› Tˆwm› Y˜ ºAms˜ sy˜ rk˜ £@¡ .(crystalline spheres) T§Cwlb˜ rk˜ œF Ahylˆ “lV ¨t˜ ¤ £@¡ Ÿ› FAn› d` •w• ™• XC œ œ .TtA Tˆrs C¤d Ahnk˜ Tn•AF Xyl ¨¡ TyžA˜ T•r˜A .T\®m˜ “w T•r Ylˆ šwO˜ ‘dh rk˜ •wk˜ T•r rbt`ž  Annkm§ .Ty @˜ •wk˜ T•r ¤ XFw˜ T•r Ÿy wk T˜A˜ £@¡ ¨ .Ahylˆ šwm› •wk˜ «r ­r• T•r˜ Tytž Ty @˜ .Tyl• XFw˜ Tytž TyžA˜ T•r˜ rysft˜ @¡  ¯ , •wk˜ T•r˜ wWFC rysf Ÿˆ Anmlk Anž œ‹C .(Ty˜wm˜ ­rqf˜ ‰˜AV) ¢lb’ d’ r rysf ‰› P¶AO˜ Ÿ› ry• ¨ —rtK§ T}A ,Ahn› “lWž ¨t˜ ¢¶ Ab› ¨¡ wWFC rysf Ylˆ z•rž Anl` ©@˜ bs˜ :Ÿ§dbm˜ uniform circular) Tm\tnm˜ T§r¶d˜ T•r˜ ¨¡ Tnkmm˜ ­dyw˜ T•r˜ • .Ahn› §z› ¤ ,(motion .Ahy A› ¤ |C± Ÿˆ r¡w T§¤Ams˜ r± lt • Yt- •wk˜ T•r rysft˜ Trtqm˜ Tm\ž± ™• ™qž œ˜  Tyb˜A‹ yn .Ÿ§dbm˜ Ÿ§@¡ Ylˆ -rlb• šAmˆ A§d Y˜ ¢bK ºC ww˜ Y˜ rhZ ,Ty›®F³ ­CASl˜ Tyb¡@˜ CwO`˜ ºAn  wWFC rt’ ¨ r\n˜ dyˆ A›dnˆ @¡ d .T§d˜ ­r\n˜ dy` d YFw› Ÿ dm› |rt ,‰FAt˜ rq˜ ¨f .|C± Ÿˆ Tflt› T§¤Ams˜ r± T§d ¨ ¤ .T§¤Ams˜ r± Ÿy TyÐA ­w’ w¤ -YFw› wn ­w³ rb•- Am• .™tk˜ Ÿy TyÐA ­w’ w¤ šw T§r\ž œyh˜ Ÿ L’Až rKˆ © A˜ rq˜ ™› w¤ œ‹C .TyRC± ºA§zyf˜ Ÿyžw’ Hfn˜ ‰S T§¤Ams˜ r±  šA’ ­r\ž Ylˆ AFAF dmtˆ Ÿymlsm˜ dnˆ •wk˜ T•r }¤  ¯ CAk± £@¡ £@h˜ ¨FAF± wkm˜ ¨¡ Tm\tnm˜ T§r¶d˜ T•r˜  Aqtˆ³ T}A wWFC .T•r˜ ­r\ž ¨qlž Ažwˆ , •wk˜ T•r }w˜ Tlm`tsm˜ HF± AnK’Až  d` .Trtqm˜ Tm\ž°˜ ¨§CAt˜ CwWt˜ Ylˆ TfVA

(Geocentrism) wk˜ z•r› |C± 3.3.4 CwWt˜ ”rWt˜ ™b’ —rt ¯ |C±  Aqtˆ³ ºC¤ Ÿ› bs˜ L’Anž Ažwˆ šw |C± C¤ dR ›d’ ¨t˜ ˜ AqAF AnK’Až dq˜ .Trtqm˜ Tm\ž± TAR³A .HmK˜ šw |C± T•r dR ˜ Ylˆ ¨l§ Amy z•rnF .Ahsfž

22  —An¡ ,’wm˜ @¡ ¨ Ah›dtF Ÿkm§ ¨t˜ r•@˜ Tf˜As˜ ˜ Y˜ :¨¡ ¨t˜ ¤ «r

,TtA˜ wnl˜ (relative position) Tybsn˜ Ty`Rw˜ ¨ ryŒ © w¤ dˆ • .(Polaris) šAmK˜ œž T}A

.(Venus) ­r¡z˜ •wk˜ (apparent luminosity) ©r¡A\˜ A`ml˜ wb • .An› Tb§r’ wn˜  rbtˆ Y˜¤± T˜A .Tmh› AVAqž lf‹ ˜ £@¡ Ÿk˜ At ¤ Tlmh› ryŒt˜ £@¡ ™`§ Anˆ wn˜ d`b ,–˜Ð Hkˆ Tqyq˜ Ÿk˜ A`ml˜ wb ,TyžA˜ Tl˜ Tbsn˜A A› .Aht§¦r˜ ©w’ (telescope) CA\n› Y˜ Ÿˆ A¡d` ¤ rmq˜ ™r› ¢bK ¨t˜ ­r¡z˜ ™r› :Ÿyl›Aˆ rA\ Y˜ ‰r§ •w• A• Aml• ryŒ} HmK˜ T`J Hk`§ ©@˜ Ws˜ A• Amlk .|C± ¨t˜ Tyn›z˜ ­rtf˜ š® A¤r`› Ÿ§rysft˜ Ÿ› ®• Ÿk§ œ˜ .An› Ab§r’ ­r¡z˜ .Anmh “¶Aw˜ œ\`› ± •wk˜ T•r }w˜ rt’ A\ž š¤ XbS˜A ‘r`§ ¯ A`± Ty®˜ TyFdnh˜ Tm\ž± š¤ Ÿy Ÿ› . fl  ¤ ˆAR d’ Ty§CAt˜ Eudoxus of Cnidus) xws•¤ w§ (25)¢rt’ ©@˜ A\n˜ •wk˜ T•r }w˜ A\n˜ @¡ dmtˆ .(Callipus of Cyzicus 370-300 BC) xwby˜A• ¤ (390-337 BC wWFC A’ . wk˜ z•r› ¨¡ ¨t˜ ¤ |C± ‰› z•rm˜ ­dt› ­r• 27 Ylˆ .­r• 55-47 Y˜ rk˜ dˆ ‰r (Aristotle 384-322 BC) ¯ T`C± šwOf˜  –˜Ð Ylˆ E .Ttb˜ Tylmˆ Ÿk œ˜ Tm\ž± £@¡ Ÿk˜ .wWFC A\n˜ Anys Ÿˆ b˜ Y˜ Ay˜AkJ³ £@¡   .(26)­dm˜ Hfn˜ rmts šwOf˜ Ty˜AkJ ™˜ (27)|C± z•r› Ÿˆ T§Cwlb˜ rk˜ z•r› zE œ TAR .¨RC ^®m˜ Tbsn˜A Tm\tn› ry‹ HmK˜ T•r ™`§ Am› . T`C± ¤ (deferent) ™’An˜ : •w• ™k˜ Ÿy r¶d T§Cwlb˜ rk˜ šdbtF œ ,@¡ Y˜ Apollonius) ©¤A‹rb˜ xwyžwl A\n˜ @¡ rt’ Ÿ› š¤ .(epicycle) r§¤dt˜ –l d` .(Hipparchus of Nicaea 190-120 BC) Lr £CwV œ (of Perga 262-190 BC ™mtm˜ ¤ ry± ™§d`t˜ TAR (Claudius Ptolemy 100-170) xwmylW A’ –˜Ð Ptolemaic) xwmylW A\ž ww˜ Y˜ Er @k¡ ¤ .(equant) T•r˜ šd`› ¨ Ÿ› º¨K A\n˜ @¡ Y˜ w`nF .rlb• šAmˆ T§A‹ Y˜ rmtF ©@˜ ¤ (system .¢˜ TOOm˜ ­rqf˜ ¨ ™yOft˜ dmt`§ ¨t˜ (parametrs) ®›A`m˜ œy’ yO Ylˆ wyklf˜ z•C ,T§db˜ ¨ ¨ ¤d ¤ œh›Amt¡ ¤ry‹ –˜Ð d` .¢tynb xAsm˜ ¤ xwmylW A\ž Ahylˆ T•r˜ O› Ty˜AkJ Ÿˆ TA³ ¨ On§ œh›Amt¡ A• y Tynb˜ £@¡ dqž Ÿkm§ .CAbtˆ³ Ÿy` •wkl˜ Tyql˜ T•r˜ @ œ˜ Ahnk˜ A\n˜ @¡ Ÿ› d’ Tm\ž —An¡(25) :¨ž¤rtk˜³ ‰’wm˜ Ylˆ Š®V³

http://www.astronomy.ohio-state.edu/~pogge/Ast161/Unit3/greek.html .A›wl`m˜ Ÿ› d§zm˜ T§r¶d˜ T•r˜A .Any`› ®O “w§ HmK˜ CAs› Ÿ› ­r¶ ‰C ™•  —@ž Aqtˆ³ A•(26) .T§¤Ast› rtf bnt Tm\tnm˜ Ÿˆ |C± d`b .rt’³ @¡ ¨ ™ ºAtK˜ ­ ¤r ¤ yO˜ ­Cr˜ A•  š¦Ast˜ An˜ “§(27) .Tns˜ šwV Ylˆ Aflt› wkyF HmK˜

23 A• ©@˜ š¦Ast˜A .(eccentrics problem) T§z•r›®˜ Ty˜AkJ ¤ (equant problem) :w¡ A¤rW› «?T§z•r›®˜ ¤ T•r˜ O› ¤d A\ž ºAn Annkm§ ™¡» :Ÿy˜¥s˜ Ÿˆ TA³ nt˜ T˜¤A› A• ©@˜ ¤ Ty˜Ay TWqn˜ Tbsn˜A A\tž —rt  § Ahž •wk˜ ‘r` y• • ?((equant) T•r˜ O›) ?Tm\tnm˜ T§r¶d˜ T•r˜ Y˜ ­ w`˜ Ÿkm§ ™¡ • ¹ Abm˜ Ÿ› “lWž xwmylW  œ‹C .Ty˜At˜ A\®m˜ Tytž Tl·F± £@¡ žA• @¡ ¢›A\ž  ¯ •wk˜ T•r˜ ¢›A\ž ºAnb˜ wWFC Ah`R¤ ¨t˜ Ty¶A§zyf˜ E ,(|C±) wk˜ z•r› Ÿˆ lt§ ™’An˜ z•rm :¹ Abm˜ £@¡ ‰› |CA`t§ xwmylW @  .A¡z•rm˜ Tbsn˜A Tm\tn› sy˜ ™’An˜ Ylˆ T•r˜ ,–˜Ð Ylˆ Ylˆ šwOl˜ wWFC ¹ Ab› Ÿˆ Yl y (pragmatic approach) Aylmˆ Af’w› . •wk˜ T•r O§ Xys A\ž ‰› An˜A ll• ¤ £®ˆ š¦Ast˜ Ylˆ TA²˜ œ¡ wh wmlsm˜ } wbsn§ Ÿ§@˜ Ÿyyklf˜ Ÿy Ÿ› .(Maragha school) T‹rm˜ TFCd› CwW ¤ E¤r Ÿ§d˜ W’ ,1274-1201 ¨FwV Ÿ§d˜ ryOž ,1266-1200 ¨Rr`˜ Ÿ§d˜ d§¥› Ahy˜ œ§dq ¨ TFCdm˜ £@¡ ž .1375-1304 rVAK˜ Ÿ ¤ ,1311-1236 ©EryJ Y˜ |C± ­ Aˆ œ ¤ (equant) T•r˜ O› ¤d •wk˜ T•r˜ Tm\ž A›wl`m˜ Ÿ› d§zm˜ .r¶¤d˜ dˆ ­ A§E w¡ ¢` ¤ ©@˜ Ÿm˜ Ÿk˜ .z•rm˜ :‰rm˜ Ylˆ Š®V³ Ÿkm§ http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts- and-maps/ptolemaic-astronomy-islamic-planetary-theory-and-copernicuss- debt-maragha-school

https://www.cambridge.org/core/services/aop-cambridge- core/content/view/S0957423900001429

http://paperity.org/p/51456472/the-role-of-maragha-in-the-development-of- islamic-astronomy-a-scientific-revolution http://qisar.fssr.uns.ac.id/wp-content/uploads/2015/04/Qisar-Roshdi-Rashed- Encyclopedia-of-the-History-of-Arabic-Science.pdf

º¨K˜ .TFCdm˜ £@¡ šAmˆ (Copernicus) –yžrw• r TyžAk› wC¥m˜ L’Až ,|C± T§z•r› ­rk nb T‹rm˜ TFCd› ¨ykl šAmˆ  w¡ ¢n› d•tm˜ ¤ T•r˜ O› Ylˆ ºASq˜ Tq§rV T}A) œh˜Amˆ± TyRA§r˜ Tynb˜ Ÿk˜ :šAm˜ ™ybF Ylˆ ‰˜AV .–yžrw• A\ž dy` d Y˜ ¢bK (T§z•r›®˜ http://www.ub.edu/arab/suhayl/volums/volum7/paper%203.pdf

24 (Heliocentrism) wk˜ z•r› HmK˜ 4.3.4 TShn˜ Tytž «( wk˜ ¤) TysmK˜ Tˆwmm˜ z•r› ¨¡ HmK˜» ­rk sy˜ ­d`˜ šwbq˜ ”® œ˜ Ahnk˜ Tm§d’ ­rkf˜A .xAn˜ Tyb˜A‹ dqt`§ Am• Ty¤C¤± E .£@¡ r\n˜ Th¤ Ab³ Tml`tsm˜ ˜ T}A ,™y}Aft˜ ŠAyR Ahn› AbF dR ¤ (|C± T§z•r›) ¢ylˆ ‘CA`tm˜ ¢wt˜ dR ¢wt˜ @¡ w• –˜Ð Ylˆ .Ty›wy˜ œhCA Ÿ› xAn˜ ¢`’wt§ A› z•r› ¨¡ HmK˜  ¤rbtˆ Ÿ§@˜ TfF®f˜ š¤ ,Tyqbtm˜ A›wl`m˜ s ,d§dK˜ F°˜ .(Aristarchus of Samos 310-230 BC) ¨Fw›As˜ HrWFC w¡ wk˜ xdymC AAt• Ÿ› ‰VAq› Ÿˆ ‰Až ¢ml`ž A› ™• ¤ Tyl}± ¢ AAt• n œ˜ «r xwmJ Ÿˆ ­CAbˆ ¨¡ TtA˜ wn˜  HrWFC dqtˆ .(Archimedes) —rt Am˜ Ah`’w› ¨ ryŒ © «rž ¯ bs˜ @h˜ ¤ ,Anˆ d ­dy` Ahnk˜ HmK˜ wb HrWFC Aqtˆ ºC¤ bs˜  ŸyC¥m˜ {` rt’ .|C± šAm`tF |C± Ÿˆ HmK˜ d` ¤ œ xAyq A’ dq .rybk˜ Ahm w¡ .rm˜ A·m |C± œ Ÿ› rb• HmK˜ œ  ¢˜Amˆ Ÿ› tntF .rmq˜ T•r šAmt Ÿ› rb• -Am rŒ}±- |C± T•r šAmt  ¨n`§ Am› :‰rm˜ T`˜AW› Ÿkm§ A›wl`m˜ Ÿ› d§zm˜ .HmK˜ https://en.wikipedia.org/wiki/On_the_Sizes_and_Distances_(Aristarchus) https://ia600502.us.archive.org/17/items/aristarchusofsam00heat/aristarchusofsam00heat.pdf w¡ ¤ ¯ ,HmK˜ T§z•rm dqtˆ -HrWFC Y˜ TAR- r ¨kl —An¡ HrVwl C¥m˜ œˆz§ .(Seleucus of Seleucia 190-150 BC BC) ¨’wls˜ H’wlF Annk˜ ,—rt |C±  ¤ TtA HmK˜  b H’wlF  (Plutarch 46 -120) ©EryJ Ÿ§d˜ W’ œlsm˜ ¨klf˜ AS§ —An¡ .y• ¤ –˜Ð ™`  Anyq§ œl`ž ¯ .Ahnˆ Yl ¢nk˜ wk˜ z•r› HmK˜ w• TyžAk› L’Až ©@˜ (1311-1236) T§z•r› T§r\ž `b˜ (Copernicus 1473-1543) –yžrw• CA\tž Anylˆ A• Ÿ› Ÿym ™› Yqb§ ’wm˜ @¡ £ÐA  ºC¤ bs˜ Ÿk˜ .­Ay˜ Y˜ HmK˜ ¢nk˜ ¢t§r\n˜ ¨b§r ™y˜ © ¨W`§  ¢At• ¨ Ÿkmt§ œ˜ .ŸyC¥m˜ ‘rV TVAsb rsf§ ¢›A\n .(elegance) ¢t’Až ¤ A\n˜ TVAs šw  Ylˆ dmtˆ ¨ •wk˜ AhmFr ¨t˜ (retrograde motion) Ty`r˜ T•r˜ ¤ Aql˜ .HmK˜ šw •wk˜ ¤ |C± C¤ TˆrF ‘®t Tytž Ahž Ylˆ ºAms˜ A Ab³ š¤ wyly˜A‹ d’ .|C± C¤ Cw› ™ym T`C± šwOf˜ XC Am• ™r› ­r¡z˜ •wk˜  ^¯ wh HmK˜ šw •wk˜ C¤d˜ Tyb§rt˜ .rmq˜ ™r› ™›

(Hybrid Proposal) Ÿyh˜ A\n˜ 5.3.4 ¨t˜ ­dyw˜ ¨¡ HmK˜ ¤ |C± T§z•r› Ylˆ dmt` ¨t˜ Tm\ž± Ÿk œ˜ ‰d˜ A• .Amhny Tny¡ Tm\ž —Anh , •wk˜ T•r rysft˜ rt’ Ÿy` @± Ÿk˜ |C± T§z•r› Ÿˆ ¨lt˜ dˆ Tm\ž± £@¡ ™m˜ ¨FAF±

25 ­r¡z˜ :Tyld˜ •wk˜ T}A ,Lms˜ šw •wk˜ C¤ TyžAk› CAbtˆ³ -ŠAyR ™qž œ˜ - ­Cdž TlkK› «r ­r› ¢wž .(mercury) CAWˆ ¤ (venus) dyl’r¡ ‘wslyf˜  Aqtˆ —An¡ šAm˜ ™ybF Yl` .Tm§dq˜ wh`˜ AAt• .HmK˜ šw C¤d Tyld˜ •wk˜ ™` (Heraclides of Pontus 390-310 BC) .–˜Ð b§ ¨`W’ ™y˜ ©± w¤ ¯ ¢nk˜ ¨klf˜ A’ šAm˜ ™ybF Yl` .£A ³ @¡ ¨ ¯Amˆ T§dnh˜ ­CAS˜ ¨ dž .HmKl˜ Tbsn˜A •wk˜ (period) C¤ ºAWˆ (Aryabhata 476-550) A AhA§C {`  ¯ (geocentric) z•rm˜ ¨¡ |C± rbtˆ ¢ž Y˜ ryK ¢ AAt•  œ‹C z•rm˜ ¨¡ HmK˜  rbtˆ ¤ Any¡ A›A\ž ™m`tF ¢ž ¤dqt`§ ŸyC¥m˜ rt’ (Nilakantha Somayaji 1444-1544) ¨Ay›wF AtžA•®yž A’ .(heliocentric) C¤d ¨t˜ HmK˜ šw —@ž T¤r`m˜ •wk˜ ‰ym C¤d y Ÿy¡ A\ž .|C± šw A¡C¤d .¢·W ¤ ¢y˜ ¡Ð A› T} šw ºAml`˜ lt ,¢›A\n˜ –yžrw• rKž d` .(Tycho Brahe 1546-1601) ¨¡r wy ¢·W Ab w˜¤A Ÿ§@˜ Ÿyyklf˜ Ÿy Ÿ› ™Oty˜ -¢˜ ¢tRCA`› œ‹C- –yžrw• A\n˜ TyA§³ ªAqn˜ @ ¨¡r A’ @  .r•@˜ žµ (Somayaji) ¨Ay›wF A\ž ¢bK§ ©@˜ ¤ Ÿyh˜ ¢›A\ž Ylˆ •wk˜ Hkˆ ,|C± T•r˜ rysf © dw§ ¯ ¢ž± ’wm˜ @¡ ¨¡r ™`§ ©@˜ º¨K˜ ,ry± ­ A› Ÿ› wkt ¨t˜ (rmq˜ ¤ HmK˜ Ahy Am) «r± .Tb¶d˜ T•r˜ Ty`ybW˜ Aht˜A (representative) ™m› Czž Ažwˆ ,CAk°˜ ¨§CAt˜ CwWt˜ Ylˆ Anmlk  d` (second motion) TyžA˜ T•r˜ Ylˆ Xq z•rnF .™yOft˜ Ÿ› º¨K A\ž ™• . •wkl˜

(Ptolemaic system) xwmylW A\ž 4.4 Tm\ž Ÿˆ ™mm• (Claudius Ptolemy 100-170) xwmylW A\ž Ÿˆ An§d dbž :w§dyf˜ Ÿ› ‰VAq› Ylˆ ¨l§ Amy dmt`nF .(Geocentrism) |C± T§z•r› http://science.larouchepac.com/kepler/astronomianova/part1/4 :w§dyf˜ ¤ (vd2) :¢˜ z›rnF ©@˜ http://science.larouchepac.com/kepler/astronomianova/part1/5 .¢›A\ž ¨n A›dnˆ xwmylW rykf A•A› š¤Až Ažwˆ .(vd3) :¢˜ z›rnF ©@˜

•wk˜ Ak› ‰’w xwmylW ‘d¡ A• :(Two Circles) •w• ™k˜ Ÿy r¶ T•r˜ w¡ ¢ylˆ šwO˜ Anylˆ § ©@˜ š¤± º¨K˜A .ºAms˜ Y˜ Ažr\ž Ÿy vid2) •wkl˜ (retrograde motion) Ty`r˜ T•r˜ ¤ (looping) Tyql˜ T§r¶d˜ T•r˜ šAm`tF -wWFC s- w›zl› Anž r•@ .(2:29-2:45 Y˜ Atž Anž Y˜ (28)xwmylW Pl .Xq (uniform circular motion) Tm\tnm˜ xwmylW A\ž -|C± T§z•r› Tm\ž± ¨§CAt˜ CwWt˜ Ÿˆ And dnˆ- AqAF AnflF Am•(28) .wRw˜ ¤ TVAsb˜ ­d¶Af˜ T’d˜A ¨SnF ¨l§ Amy .Ÿyykl ­dˆ šAmˆ rA\ Tytž A•

26 ™’An˜ Y˜¤± ­r¶d˜ Yms . •w• ™• T•r }w˜ (vid2 2:46-3:03) Ÿy r¶ (epicycle) r§¤dt˜ –l TyžA˜ ­r¶d˜ Yms ¤ .|C± A¡z•r› ¤ (deferent) Tˆrs —rty •wk˜ A› .™’An˜ Ylˆ Tm\tn› Tˆrs —rt§ A¡z•r› ¤ y•r Atž ¨¡ |C± Ÿ› A¡rž ¨t˜ T•r˜A .r§¤dt˜ –l Ylˆ Tm\tn› ™’An˜ rWq TžCAq› r§¤dt˜ –l rW’ Tbsž ryŒž A›dnˆ .Ÿbt•r˜ Ÿy A¡ rtq§ A¡ºAn ¤ ,(vid2 3:04-3:31) Tyql˜ T•r˜ Ylˆ ™Ož  ‰yWtsž ¨ wk§ (Mars) §rm˜ •w• ± T\®m˜ “w§ @¡ .|C± Ÿ› •wk˜ ­d¡AK› Ÿkm§ .(retrograde motion) Ty`r˜ ¢t•r ºAn (brightest) ¢žA`m˜ ¤ .(vid2 3:32-3:54) ‰Wqm˜ ¨ -™›Ak˜ Hy˜ ¤-  An˜ xwmylW A\ž ‰rž A›dnˆ A› •w• Ak› ‰’w xwmylW ‘d¡ A• ,AqAF AnflF Am• ©@˜ dyw˜ º¨K˜  ¨n`§ @¡ .¨qyq˜ •wk˜ ‰’w› ¯ ,ºAms˜ Y˜ Annyˆ rW’ Y˜ r§¤dt˜ –l rW’ Ÿy Tbsn˜ w¡ T\®m˜ “§rV Ÿˆ ¢FAy’ Annkm§ r§¤dt˜ –l ©rW’ Ÿ› ™• ryŒ§ y (vid2 3:55-4:11) ‰Wqm˜ d¡AJ ,™’An˜ š®ŒtF Annkm§ . •wk˜ ¢y «rž ©@˜ £A ³ Ylˆ –˜Ð r¥§  ¤ ™’An˜ ¤ (Mercury) CAWˆ ¤ (Venus) ­r¡z˜ Ÿyb•wkl˜ ™’An˜ rW’ ryyŒt˜ Ty}A˜ £@¡ Amhž• ¤ rh\§ Ab•wk˜ @¡ ™`n˜ ,HmK˜ Cd› rWq˜ A§¤As› ¢l` ¤ .(vd2 5:29-5:51) HmK˜ šw C¤d§

Tyql˜ T•r˜ Až@  d` :(Irregular Motion) Tm\tn› ryŒ˜ T•r˜ ¨t˜ Aql˜ :Ty˜At˜ Ty˜AkJ³ Thw› Anylˆ ¤ CAbtˆ³ Ÿy` •wkl˜  .(vd3 0:12-1:33) ‰Wqm˜ d¡AJ .œ˜ Hfn sy˜ A› •w• AhmFr§ vd3) T§¤Ast› wk Aql˜  AqAF ¢y˜ Anl}w ©@˜ A\n˜ Ylˆ Xq Aždmtˆ (vd3 1:46-2:16) ™’An˜ z•r› Ÿˆ |C± Tzz ¯¤ xwmylW A’ .(1:35-1:44 Tbsn˜A Tm\tn› ry‹ r§¤dt˜ –l z•r› T•r ™`§ Am› .Ty˜AkJ³ £@¡ ™˜ ­d¡AKm˜ Aql˜ Hfž Ylˆ xwmylW ™O§ œ˜ @¡ œ‹C ¤ .|C± Ÿ› ’rm˜ .(vd3 2:18-2:36) ºAms˜ ¨ T•r˜ O› :­d§d TWqž ‘AR y ¢›A\ž ¨ d§d ryyŒt xwmylW A’ Tm\tn› T•r ™’An˜ Ylˆ r§¤dt˜ –l z•r› T•r wk y ,(equant) xwmylW ‰R¤ .T•r˜ O› dnˆ q§ ^®m˜ Tbsn˜A (vd3 2:37-3:30) Ÿ› @h Ÿkm ¤ ,|C± ¤ T•r˜ O› Ÿy TAsm˜ Otn› ™’An˜ z•r›  Ÿkm§ .(vd3 3:31-3:43) T\®m˜ Aqll˜ Ab§rq TqAW› Aql Ylˆ šwO˜ ¨ TqAs˜ ­rqf˜ A\ž Y˜ TAR ™• ‰› Aqll˜ d ¨t˜ ryŒt˜ d¡AKž .(vd3 3:44-4:02) ‰Wqm˜

:Ty˜At˜ Ab•rm˜ Ylˆ xwmylW A\ž dmt`§ :(Conclusion) T}®˜ .—rt HmK˜ ¤ TtA |C± • (epicycle) r§¤dt˜ –l z•r› Ahylˆ —rt§ ­r¶ w¡ ¤ (deferent) ™’An˜ • .|C± Ÿˆ lt§ A¡z•r› ¤ .TtA Tˆrs •wk˜ Ahylˆ —rt§ ­r¶ w¡ ¤ (epicycle) r§¤dt˜ –l •

27 z•r› T•r ¤db y Ty˜Ay TWqž ¨¡ ¤ (equant) T•r˜ O› • xwmylW ‰R¤ .Ah˜ Tbsn˜A Tm\tn› T•r ™’An˜ Ylˆ r§¤dt˜ –l .T•r˜ O› ¤ |C± Ÿy TAsm˜ Otn› ™’An˜ ­r¶ z•r›

.(vd3 4:03-4:42) ‰Wqm˜ ¨ ¨lk˜ xwmylW A\ž ­d¡AK› Ÿkm§

(Copernican system) –yžrw• A\ž 5.4 :w§dyf˜ ™m`tsnF ¨l§ Amy http://science.larouchepac.com/kepler/astronomianova/part1/6 .(vd4) :¢˜ z›rž ¤ ©rO ‰rm• ¤ —rt |C± ™` (Nicolaus Copernicus 1473-1543) –yžrw• Y˜ sn§ :®¶A’ t• y . wk˜ z•r› ¨ HmK˜ ‰R¤ Ak› ¨ ™ym db`› xwžA ‰S§  ‰yWts§ Ÿm .™k˜ XF¤ ¨ HmK˜ dw » ¤ º¨J ™• º¨S§  xwžAfl˜ Ÿkm§ –˜An¡ Ÿ› , Akm˜ @¡ Ÿ› Ÿs ¤ r Tl¶Aˆ ,¨klm˜ AhJrˆ Ylˆ Ts˜A Ahž• ¤ ,HmK˜ œk @k¡ ¤ ? ’w˜ Hfž ¨ « .Ah˜w w ¨t˜ •wk˜

“In the center of all rests the sun. For who would place this lamp of a very beautiful temple in another or better place than this, from which it can illuminate everything at the same time?... And so the sun, as if resting on a kingly throne, governs the family of stars which wheel around.” .AqAF £An§C A› ºwR Ylˆ d§d Ÿ› –yžrw• A\ž ¢ Y  A› L’Ann˜

T•r˜ –yžrw• rsf§ y• :(Retrograde Motion) Ty`r˜ T•r˜ ™ybF Ylˆ @n˜ ?|C± Ÿ› A¡d¡AKž ¨t˜ •wkl˜ (looping motion) Tyql˜ :Ÿyt\®m˜ Ylˆ dmt`§ rysft˜ .(Mars) §rm˜ •w• šAm˜

.T§r¶ T•r ¨ HmK˜ šw C¤d§ |C± ¤ §rm˜ Ÿ› ™• •

.HmK˜ šw ¢ C¤ Am ³ |C± Ÿ› šwV At’¤ §rm˜ ”rŒts§ • ™`§ Am› ,T§¤Ast› Tyn›E rt ¨ §rm˜ E¤AttF |C±  ¨n`§ @¡ TA ® .(vd4 1:00-1:21) ºCw˜ Y˜ w`§ ¢ž• ¤ §rm˜ d¡AK§ AyRC A\®› .Ÿy r¶ šAm`tF³ An¡

T•r˜ rysf Ÿ› Ankm dq˜ :(Irregular Motion) Tm\tn› ryŒ˜ T•r˜ An›A\ž ¢`’wt§ A› Hkˆ A ry‹ ™kJ Ð Aql˜ £@¡ Ÿk˜ TVAsb Tyql˜ .(equal) T•r˜ O› ySž ¤ xwmylW ¢ A’ A› Hfn wqž  Annkm§ .Xysb˜ T•rl˜ ŸyRCA`m˜ dJ Ÿ› A• ¢ž± ™˜ @¡ ™m`ts§ œ˜ –yžrw• Ÿk˜

28 (double epicycles) (29) ¤ z› r§¤d –l yS§  –yžrw• Cr’ .Tm\tn› ryŒ˜ šAm`tF Ÿk˜ .–yžrw• A\ž T§¦r˜ (vd4 1:27-1:47) ‰Wqm˜ d¡AJ . •w• ™k˜ vd4) T\®m˜ TyAž Ÿ› ”r © ™kK§ ¯ T•r O› ¤ ¤ z› r§¤d –l .(1:47-2:40

:Ty˜At˜ Ažwkm˜ Ylˆ –yžrw• A\ž dmt`§ :(Conclusion) T}®˜ .HmK˜ šw C¤d |C± ¤ TtA HmK˜ • .(double epicycle) ¤ z› r§¤d –l ¤ (deferent) ™’Až •w• ™k˜ • .Tm\tn› T§r¶ A•r ¨¡ A•r˜ ‰ym •

Om (double epicycle) ¤ zm˜ r§¤dt˜ –l šdbtF Ÿkm§ ,AqAF AnflF Am• z•r› –yžrw• ™m`tF .­ryŒ} T\®m ­rqf˜ £@¡ œtž .(equant) T•r˜ –yžrw•  œ‹r .¢›A\ž ¢ylˆ ¨nby˜ -HmK˜ Ÿˆ lt§ ©@˜- |C± Cd› .¢›A\ž ¨ C¤ © `l ¯ HmK˜  ¯ C¤d |C± ™` ¤ HmK˜ b

(Tychonic system) ¨¡r A\ž 6.4 :Xr˜ Ylˆ w§dyf˜ ™m`tsnF http://science.larouchepac.com/kepler/astronomianova/part1/7 .(vd5) :¢˜ z›rž ¤ ©rO ‰rm• Ÿy›A\n˜ Ÿy Ÿy¡ A\ž rt’ (Tycho Brahe 1546-1601) ¨¡r wy A’ šw C¤d A¡C¤d ¨t˜ ¤ HmK˜ šw C¤d •wk˜ ™` y ,ŸyqAs˜ Ažwk› Ahsfž ¨¡ ¢›A\ž Ažwkm .(vd5 1:14-1:48) ‰Wqm˜ d¡AJ .TtA˜ |C± .—rt HmK˜ ™` ¤ TtA |C± ™` ºAntF –yžrw• A\ž .«r± •wk˜ T•r˜ z•rm• HmK˜ ¨¡r ™m`ts§ œ˜ ,Tqyq˜ ¨ T•r |C± šw —rt§ ¤ HmK˜ Ÿ› Ab§r’ (mean sun) z•r› ™m`tF ™ A\ž ¨ C¤ © `l ¯ (true sun) HmK˜A .(vd5 1:49-2:13) Tm\tn› T§r¶ .–yžrw• A\ž ¨ Ah˜A Hfž w¡ ¤ ¨¡r

(Laws of Planetary Motion) •wk˜ T•r Ÿyžw’ 7.4 —An¡  ^¯ ¨¡r  ¢lmˆ (Johannes Kepler 1571-1630) rlb• d A›dnˆ bF ¨¡ HmK˜  An›¥› rlb• A• . •wk˜ T•r rK˜ Tm\ž T® •wk˜ @ y HyVAnŒm˜ ¢bK HmK˜  dqt`§ A• . •wk˜ T•r ¤ rlb• šAmˆ ¨ ™rm˜ œ¡ ‰bt ¨l§ Amy š¤AnF .Ah˜w C¤d Ahl` ¤ . •wk˜ T•r˜ ®˜ ¢nyžw’ ‰R¤ Y˜   ¨t˜

TFCd› Tm\ž .­d§d˜ ­rkf˜A sy˜ T•r˜ O› šd ¤ z› r§¤d –l šAm`tF(29) .T•r˜ O› Ÿ› Pltl˜ ThAK› Tly lm`tF T‹rm˜

29 (Equivalence of the Three Systems) ®˜ Tm\ž± ¥Ak 1.7.4 :w§dyf˜ ­rqf˜ £@¡ ¨ ™m`tsnF http://science.larouchepac.com/kepler/astronomianova/part1/8 .(vd6) :¢˜ z›rž ¤ ©rO ‰rm• T’d ¤ TnF 40 ­dm˜ •wk˜ T•r Ÿ§¤d Tyklf˜ ¨¡r šAmˆ œ¡ Ÿ›  Ÿ›¥§ A• ¨¡r  ™m`˜A rlb• “t˜ A›dnˆ .¢t’¤ ¨ ™S± žA• Ab³ ¨¡r A\®› ™m`ts§  C @h˜ ¤ . •wk˜ T•r bF ¨¡ HmK˜ Y˜ Pl ¢nk˜ £ºAOqtF rlb• d .yO˜ A\n˜ w¡ –yžrw• A\ž  :Tb§r‹ Tytž ,ºAms˜ Y˜ Anžwyˆ ‰rž A›dnˆ A› •w• Ak› A§ w¡ And¡ A• » .«Trt˜ ºAW ¤d ¨ ‰’wt˜ Hfž ¨W` T®˜ Tm\ž±A d¡AJ .TyRC± A\®m˜ Ÿ› A’®Wž T®˜ Tm\ž± Ÿy zyymt˜ Ÿkm§ ¯ ¢ž © A¡d¡AKyF ¨t˜ §rm˜ •w• Ty`R¤ TžCAq› œt§ y (vd6 2:03-2:17) ‰Wqm˜ !!!”r © dw§ ¯ :T®˜ Tm\ž± A`’w s ¨RC ’r› :Ty}A š®ŒtF T®˜ Tm\ž± ¥Ak Ab Annkm§ r¶¤d˜ lt› CAW’ sž ¨¡ ,T\®m˜ ¶Atž šAm`tF ¢FAy’ ‰yWtsž A› ™• .A\ž ™• ¨ ­dwtm˜ ™ym Ylˆ ™OnF sn˜ £@¡ ryyŒ ¤ r¶¤d˜ £@¡ CAW’ ryyŒt Anm’  A’®Wž (vd6 2:28-4:53) ‰Wqm˜ ¨ ¢l` œt§ A› @¡ .TFCd˜  A\nl˜ šwbq› ºAn § .–yžrw• A\ž Y˜ ™On˜ ¨¡r A\n C¤r› xwmylW A\ž Ÿ› TS§Aq› œ xwmylW A\ž ¨ (eccentric) T§z•r›®˜ Ÿ› Plt˜ Tylm`˜ £@¡ .(double epicycle) ¤ z› r§¤d –lf (equant) T•r˜ O› A• ©@˜ š¥s˜ Šwž ¨ ‰q Ty˜AkJ³  £®ˆ TK’Anm˜ Ÿ› Ayl rh\§ :Tm\ž± lt› ºAn dnˆ A¤rW› «?ºAms˜ Y˜ Annyˆ ‰rž A›dnˆ •wk˜ dž Ÿ§» :w¡ ¢rV w˜ š¥s˜A «?AhbbF A› ¤ ? •wkl˜ (actual motion) Tyqyq˜ T•r˜ ¨¡ A›» Ylˆ ™O§ ¢ž A\ž © šAm`tF •wk˜ T•r ‰bt  ¢ž rlb• ^¯ Ÿ› ¨žA˜ œsq˜ ¨ AWWm˜ ^¯ .r ¤ Šwž Ÿ› (absurdities) AAF :Tyž¤rtk˜³ TfO˜ http://www.keplersdiscovery.com/Hypotheses.html A•  .HmK˜ A¡z•r› ­w’ Ÿ› tn§  Ÿkm§ ¯ dq`m˜ CAsm˜ @¡ ™› A\ž Ÿˆ bž  Anylˆ § , •wk˜ T•r bF ¨¡ HmK˜ :w¡ AnqlWn› §rm˜ •w• Ÿˆ ¨l§ Amy An§d rOtqyF . •wk˜ T•r }w˜ d§d .d§d © yS§ ¯ «r± •wk˜ Ÿˆ §d˜ ± (Planet Mars)

30 (Re-observing) T\®m˜ T`r› 2.7.4

¨ “lWn§  ™b’ ¢ A’ A› š¤ .¢˜Amˆ ¨ (meticulous) T’d˜ d§dJ rlb• A• Ay˜AkJ³ ¢w§  ¢ylˆ Ak .T\®m˜ ¶Atž Ÿ› d•t˜ w¡ ©rkf˜ £ wh› :Ty˜At˜ T•r TlO› ¨¡ •wkl˜ T§r¡A\˜ T•r˜  —rt |C±  Am • .|C± T•r ¤ Ty @˜ •wk˜ .§rm˜ T•r ©wts› Ÿˆ lt§ |C± T•r ©wts› • .TqAs˜ AFAyq˜ ¨ Tyqyq˜ HmK˜ šAm`tF dˆ • Ylˆ ¤ §rm˜ ¤ HmK˜ Ÿy |C± wk A›dnˆ §rm˜ ‰’w› xAyq rlb• A’ “qž .|C± T•r Ÿ› Pltl˜ (Measurement at opposition) T›AqtF³ Hfž .Hk`˜ ¤ ”rK˜ Th §rm˜ wk§ ¤ HmK˜ rŒ A›dnˆ AFAyq˜ @ –˜Ð ‘®t CAbtˆ¯ Ÿy` @ œ˜ Ahnk˜ dq˜ @n› Tlm`ts› žA• Tq§rW˜ £@¡ :‰˜AV .¢yOt A’ ¤ W˜ @¡ rlb• ^¯ .§rm˜ ¤ |C± T•r ¨§wts› http://www.keplersdiscovery.com/Observations.html T•r  Aqtˆ³ A• .Ahthw› rlb• Ylˆ A• «r Ty˜AkJ —An¡ z•r› šAm`tF Y˜ «  @¡ .Tm\tn› T§r¶ T•r ¨¡ HmK˜ šw |C± lt§ Tyqyq˜ HmK˜ ‰’w› Ÿk˜ .AFAyql˜ ‰rm• (mean sun) T•r˜ £@¡ :TfO˜ T`˜AW› Ÿkm§ .z•rm˜ @¡ Ÿˆ http://www.keplersdiscovery.com/MeanSun.html ™kK› bO§ ,CAbtˆ³ Ÿy` §rm˜ ¤ |C± T•r ¨§wts› ‘®t @ dnˆ .T\®m˜ ¶Atž ™yl Ylˆ rb• ry ¤Ð (mean sun) |C± T•r z•r› ¢ylˆ A• @h˜ , •wk˜ T•r bF ¨¡ HmK˜  TyRrf˜ Ÿ› rlb• “lWž :‰˜AV A›wl`m˜ Ÿ› d§zm˜ .Tyqyq˜ HmK˜ šAm`tF A\®m˜ rysf ­ Aˆ http://www.keplersdiscovery.com/CorrectedTable.html ,xAyq˜ ºAW± (potential sources) Tnkmm˜ ŸVwm˜ ™• Ylˆ rlb• YS’  d` .©r\n˜ ¢lmˆ ¨ “lWž

(Reviewing the Hypothesis) AyRrf˜ T`r› 3.7.4 ‰› {’Ant ¯ AyRr Ÿ› -­d§d T§r\ž ¤ A\ž ºAn ºAn- “lWnž  § :ŸytyRrf˜ Ÿ› rlb• “lWž .T\®m˜ .HmK˜ Ÿˆ lt§  Ÿkm§ z•r› Ð T§r¶ T•r ¨¡ §rm˜ T•r •

¢˜ Tbsn˜A §rm˜ T•r rh\ y (equant) dy¤ T•r O› —An¡ • .Tm\tn›

31 ºAW ¤d ¨- ¸Ak AyRrf˜ £@¡  ŸWftm˜ ¹CAq˜ ^®§  § –yžrw• A\ž ± @¡ .–yžrw• A\ž Ahylˆ ¨n ¨t˜ AyRrf˜ -Trt˜ ¨ Ÿmk§ ‘®t³ Ÿk˜ .T•r˜ bF ¨¡ HmK˜ :rlb• “lWn› Y˜ r’± w¡ @¡ ¢rO Ÿ› rlb• ‘d¡ A• .T\®m˜ Ylˆ rlb• Ahl  ¨t˜ AyOt˜ ¨ ”®Wž³ ™b’ (push to the limit) A¡AO’ Y˜ —@ž ­dwtm˜ Tm\ž± ‰ .r›± zltF  d§d A\ž Ÿˆ b˜ ­r›AŒ› .Ayb§r (equant) T•r˜ O› Ak› d§  rlb• C ,–˜Ð Ylˆ ­ A§E •wk˜ ± (line of upsides) Abq˜ X Ylˆ -šA˜ T`ybW- ‰’wm˜ @¡ wkyF :‰˜AV .Ahnˆ d`tb§ Am˜ AW ¤ HmK˜ Ÿ› rtq§ Am˜ ŠrF wk§ http://www.keplersdiscovery.com/Equant.html .T•r˜ O› ry Ÿˆ ­rk Ÿ§wkt˜ ­r¶ —An¡  r•@ ?T•r˜ O› Ak› Ÿyy`t rlb• A’ y• Ÿk˜ Y˜ Atž Anž ¨n`§ @¡ .­d¤ T›AqtF Ylˆ sy˜ ªAqž T® rm ­dy¤ rlb• ‰C .­r¶ Ÿˆ ­CAbˆ CAsm˜  Ÿ› d•t˜ Až C Ð ™’± Ylˆ ªAqž T`C Tyn›E rt Ylˆ §rm˜ •wk˜ ‰Rw› T`C CAt ¤ ¢ A\®› š¤d Y˜ Ÿ›zl˜ C¤A› T`C :T`VAqt› C¤A› T`C Ÿ› A¤E £AWˆ Am› .T§¤Ast› ‰VAqt §rm˜ Ty`Rw˜ C¤A› T`C ¤ (equant) T•r˜ O› dnˆ ‰VAqt C¤A› ‰› Ÿ›z˜ C¤Am˜ ‰VAq Ÿˆ –˜Ð d`  œ .(sun) HmK˜ dnˆ £@¡ Ÿˆ ­rk Ÿ§wkt˜ .­d¤ ­r¶d˜ ¨mtn ªAqž T`C Ylˆ šwOl˜ Ty`Rw˜ :Ÿ› š¤± œsq˜ ‰˜AV TynSm˜ Tylm`˜ http://www.keplersdiscovery.com/Vicarious.html Ylˆ šwOl˜ r› ­dˆ (guess and check) d• ¤ Ÿm Tq§rV rlb• ™m`tF  d¤ ¤ T\®m˜ Ÿ› §rm˜ ‰’w› ‰› ¢›A\ž A`’w CA’ –˜Ð d` .­r¶d˜ .¸VA ¢›A\ž  ¨n`§ Am› .—@ž T\®m˜ T’ «d`t§ ”rf˜ xAyq wq§  Cr’ @h˜ .¢˜Amˆ ¨ T’d˜ d§dJ rlb• A• AqAF AnflF Am• “wt§ ¯ ®˜ Tm\ž± ¹ Ab› Hfž Ylˆ ¨nbm˜ ¢›A\ž  Ÿ› d•tl˜ r Ÿkm§ ¢ž rlb• œlˆ .T·VA Tm\ž± ™•  ¨n`§ Am› ,Tyklf˜ A\®m˜ ‰› {yS˜ ¤ (aphelion) ¤± ¨`Rw› dnˆ HmK˜ Ÿˆ §rm˜ d` Hyq§  ¢˜ :Ÿ› ¨žA˜ œsq˜ ‰˜AV .¢›A\ž šAm`tF ¤ T\®m˜ šAm`tF (perihelion) http://www.keplersdiscovery.com/Vicarious.html Ÿˆ lt ¢›A\ž ¶Atž  rlb• d¤ .¢ A’ ©@˜ As˜ T`ybV Tr`m˜ ŸytyRrf˜ ®• ¤ «d  ¨n`§ @¡ .T\®m˜ T’ E¤At Tmyq T\®m˜ .T·VA Amhn› “lWž ¨t˜ © Ÿˆ Ylt§  rlb• Cr’ ?™m`˜ Am ¤ds› “§rW˜ Anl}¤ Anž rh\§ An§C Am•- Ÿk˜ .T\®m˜ Ÿ› A’®Wž §rm˜ Cd› œFr§ ¤ T§db› TyRr Anylˆ § :Ty @˜ ¢t•r sy˜ |C± Ÿ› Ah\®ž ¨t˜ §rm˜ T•r -AqAF TqAs˜ Tly˜ Hfž ™m`tsž  Annkm§ ¯ .|C± T•r “l`tm˜ ºz˜ Tr`› CAs› ‘r`ž  Ð Anylˆ § .§rm˜ ‰Rw› Ÿ› Ÿkm› dˆ rb• d§rž Anž± .T’d |C±

32 (The Orbit of Earth) ?|C± CAs› w¡ A› 4.7.4 .|C± CAs› d§d ¢ylˆ ¤ ¤ CAy˜ rlb• –lm§ œ˜ ,r•@˜ AnflF Am• (Hipparchus) Lr A§ Ÿ› ­ A`˜ r ?CAsm˜ @¡ d§ ¨k˜ db§ y• Ÿk˜ £@¡ ¶Atž žA• .Tm\tn› T§r¶ T•r (HmK˜ ¤) |C± T•r rbt`  ¨t˜ rlb• TyOJ Ÿk˜ .xAyq˜ T’ ¤d ¨ T\®m˜ ‰› Tqft› TyRrf˜ ¢t•r Ÿk˜ ©r¶ |C± CAs›  TyRr Ÿ› ”®Wž³ Y˜ ¢ A’ T’d˜ Ÿˆ b Ahlm`tF ¨t˜ Ahsfž ¨¡ TyRrf˜ £@¡  ^¯ .Tm\tn› sy˜ CAsm˜ @¡ Ylˆ ¢¶dbm˜ TyqWn› Tytž ¢ž Ylˆ ‘rOt˜ @¡ œh Ÿkm§ .§rm˜ CAs› TFC ¨ A• ¨t˜ Ty˜AkJ³ Ÿk˜ .« •wk˜ T•r bF ¨¡ HmK˜» :¢n› “lWž ©@˜ ‰yWtsž yk .|C± WF Ÿ› A\®m˜ ‰ym wqž Anž ¨¡ Ahthw› ¢ylˆ ?Ah C AŒ› ¤ |C± CAs› d§d A§ Anylˆ @h˜ Ÿymyqts› ‰VAq “§rV Ÿˆ TWqž Ak› d§d Ÿkm§ š@ ¤d |C± dnˆ ‰VAqt˜ Ylˆ ™Ož Annk˜ .|C± dnˆ A`VAqt§ Ÿymyqts› T§dyl’³ TFdnh˜ ¨ AnFC Ÿ› œl`ž ¤ .|C± Ÿ› œt§ AnFAy’ ± wh› © ©- ¢˜ ©Ewm˜ ŠA`K˜ ¤ TWqž Tr`› ¨¡ œyqts› d§dt˜ ”rW˜ Ÿy Ÿ›   ‰yWtsž ,ºAms˜ ¨ Ah`Rw› xAyqb HmK˜ ¨¡¤ TtA TWqž —An¡ .-£A ³ Ahl• •wk˜A ?TyžA˜ T\qn˜ dž y• Ÿk˜ .š¤± œyqtsm˜ Ylˆ ™Ož “§rV Ÿˆ Tl\`m˜ £@¡ ™ rlb• A’ .d ­dy` TtA˜ wn˜ ¤ —rt  .A›w§ 687 §rm˜ T•r C¤  œl`§ rlb• A• .§rm˜ •w• yb .¨žA˜ œyqtsm˜ Ylˆ ™Ož w§ 687 ™• ºAms˜ ¨ §rm˜ Ak› T\®m Anm’ .AmhžAk› ryŒ§ ¯ §rm˜ ¤ HmK˜ ± |C± CAs› Tr`› Ÿkm§ Tq§rW˜ £@h xAy’ šAm`tF ¢tytž Ÿ› d• œ ­r¶d˜ d§dt˜ AFAy’ T® rlb• ™m`tF :TfO˜ ‰˜AV .‰C http://science.larouchepac.com/kepler/newastronomy/part3/24/index.html ©r¶ |C± Cd›  Y˜ rlb• Pl .rlb• Tq§rW˜ ¨yRw XW› T§¦r˜ z•r› Ÿˆ lt› (equant) T•r Om˜ Tbsn˜A Tm\tn› |C± T•r ¤ TFC Y˜ Šwr˜ -(30)T’d |C± CAs› d§d d`- rlb• Ak› b}.Cdm˜ .§rm˜ •w• Cd›

(The Orbit of Mars) ?§rm˜ CAs› w¡ A› 5.7.4 .TyRr © Ÿ› ”®Wž³ dˆ §rm˜ CAs› Ty˜AkJ ¨Wt˜ rlb• ­rk žA• .¢y˜ ™}w ©@˜ |C± CAs› šAm`tF §rm˜ ‰Rw› xAy’ dy`§  Cr’ dq˜ Cr’ ,–˜Ð œ‹C ¤ .ªAqn˜ £@¡ ™mK§ ©@˜ ¨Fdnh˜ ™kK˜ d§  š¤A –˜Ð d` Tytn˜ Ÿk˜ «r ­r› ¢ AAs Aˆ .«r T}r T§r¶d˜ T•r˜ ¨W`§  ­r¶d˜ Ÿˆ ¨lt˜ ry Cr’  Y˜ r› ¤ r› ¢ AAs rlb• Aˆ .ryŒt œ˜ .(oval shape) ©wSy ™kJ Y˜ r\n§ ¢ž ‘rˆ ¤ ¢ ¤AK‹ `Kqž @¶dnˆ ¤ .Ay¶Ahž :TfO˜ Ylˆ ry± XWm˜ d¡AJ http://www.keplersdiscovery.com/NotaCircle.html .–˜@• £CAbtˆ Ÿkm§ —@ž T\®m˜ T’ ¤d ¨ Ÿk˜ A§r¶ Hy˜ |C± CAs›(30)

33 ?¢f}w˜ T˜ A`› ‰R¤ Ÿkm§ ™¡ ¤rWm˜ š¥s˜ Ÿk˜ k r§ œ˜ ¢ž Ÿ› d•tl˜ r› ­dˆ ¢ AAs ¤ ¢ AFAy’ rlb• Aˆ  d`  d§r§ Ÿm˜ .­r¶dl˜ TyFdn¡ AAR šAm`tF ™kK˜ @¡ }¤ š¤A ,W © :Ylˆ ‰lW§  Ÿkm§ rlb• ¯¤A› Ÿˆ ­r\ž wk§ http://science.larouchepac.com/kepler/newastronomy/part4/index.html ‰lV (refraction) ºwS˜ CAskž ­r¡A\˜ ¢tFC ºAn ¢ž ry rlb• r•@ ‰Wq˜ šw (Apollonius of Perga 3th century BC) ©¤A‹rb˜ xwyžwl šAmˆ Ylˆ P’Až ‰W’ w¡ §rm˜ •w• CAs›  —C  .(conic sections) TyV¤rm˜ :‰˜AV .(ellipse) http://www.keplersdiscovery.com/Elipse.html .A›wl`m˜ Ÿ› d§zm˜

(Laws of Planetary Movement) •wk˜ T•r Ÿyžw’ 6.7.4 HmK˜  TyRr Ÿ› A’®Wž •wk˜ Cd› }¤ ¨ ž d’ rlb•  œ‹C ¢tlC rlb• d A›dnˆ .rµ At›³ ¨ ™K ¢ž ¯ ,(heliocentrism) TtA ‰Wts§ œ˜ ¢nk˜ . •wk˜ T•r bF ¨¡ HmK˜  Ab ¢d¡ A• Tyklf˜ T›Aˆ P¶AO Ÿˆ b§  Crq .HmK˜ Ÿˆ T An˜ ­wq˜ £@h˜ Af}¤ ¨W`§  bs˜ A§ ¨ ®bqts› dˆAs Ahlˆ •wk˜ T•r˜ (universal properties) TAR³A Ÿyžw’ T® Xbnts§  rlb• ŠAWtF .T•r˜ £@¡ ºC¤ ¨¶A§zyf˜ .d¤ wtsm˜ ¨mtn§ •wk˜ Cd›  ¢tr`› Y˜

:š¤± wžAq˜ « .¢y C¥ «d ¨ HmK˜ ‰q AO’Až A`W’ ¢t•r ºAn •wk˜ œFr§ »

“The orbit of a planet is an ellipse with the Sun at one of its two foci.”

:¨žA˜ wžAq˜ rt ºAn T§¤Ast› AAs› •wk˜A HmK˜ Xr§ ©@˜ ŠA`K˜ sm§ » « .T§¤Ast› Tyn›E

“A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.”

34 :˜A˜ wžAq˜ ¨sy¶r˜ Cwm˜ Ož `k› ‰› •wk˜ T§Cdm˜ ­rtf˜ ‰r› FAnt§ » « .£Cdm˜ “The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.” ¨¶A§zyf˜ Yn`m˜ L’Anž Ažwˆ ,Ÿ wyn˜ T›A`˜ TyÐA˜ wžA’ L’Anž  ™b’ .(vector calculus) ¨ˆA`K˜ As˜ ¨ ©dylq Ÿ§rm ¢ž .£®ˆ ¨žA˜ wžAql˜ dt Tyn›E ­rt ¨ £®ˆ −→r ŠA`K˜ Ahsm§ ¨t˜ TAsm˜  bž  ™hs˜ Ÿ› −→ : ‘r`m˜ L (Angular Momentum) T•r˜ zˆ ŠA`J Tl§wV ‰› FAnt§ −→ L = −→r ∧ −→p , −→ AZwf› L T•r˜ zˆ wk§ . •wk˜ (momentum) T•r Tym• w¡ −→p y .(gravitation) TyÐA˜ ™› (central force) T§z•rm˜ ­wq˜ ‰› ™›A`tž A›dnˆ zˆ §r` Ÿ› ,–˜Ð Ylˆ E ._Afž³ @¡ Tytž w¡ £®ˆ ¨žA˜ wžAq˜ −→  ¨n`§ Am› .−→r ¤ −→p ŸyˆA`K˜ Ÿ› ™• Ylˆ © wmˆ L  tntsž T•r˜ ¨žA˜ wžAq˜ Y˜ r\nž  Ÿkm§ Annk˜ .d¤ wts› Y˜ ¨mtn •wk˜ T•r T•r˜  ¢y˜ ySž A›dnˆ- ¨žA˜ wžAq˜  tntsž @¶dnˆ .™}± w¡ ¢ž Ylˆ . A T•r˜ Tym• zˆ  Ylˆ šd§ -d¤ wts› ¨ œt

(Gravitational Attraction) A`˜ TyÐA˜ wžA’ 8.4 «? •wk˜ T•r bF A›» :w¡ •wk˜ T•r TFC Ÿ› ¨qbtm˜ š¥s˜ š¥s˜ @¡  ^¯ T•rl˜ ¢nyžw’ (Newton 1642-1726) Ÿ wyž ‰R¤  d` ™` Am•- L’AnnF T›A`˜ T˜A˜ ‰› ™›A`t˜ šd Ÿk˜ .Ahb§rt˜ T}r ¨W`§ Ÿyžwq˜ z›rnF ,¨l§ Amy .Tm\tnm˜ T§r¶d˜ T•rl˜ T}A˜ T˜A˜ -Ÿ wyž .K3 ¤ ,K2 ,K1 : rlb• Ÿyžwq˜ z›rnF Am• .N3 ¤ ,N2 ,N1 :Ew›r˜A Ÿ wyž −→ . •wk˜ Ylˆ r¥ F ­w’ —An¡  tntsž (N1 + K1) Ÿ› • :Tmyq˜ R rW’ Ož ¤ v TˆrF Ð Tm\tn› T§r¶ T•r ŠCAs @§ • v2 a = . R :Tmyq˜A T•rl˜ T T§Cdm˜ ­rtf˜ YW` • 2 π R T = . v :  K3 wžAq˜ šAm`tF tntsž • α v2 = , R . A α y

35 Ylˆ ™Ož ,TqAs˜ ¶Atn˜ Y˜ TAR³A ,N3 ¤ N2 ŸyžwžAq˜ šAm`tF • :TyÐA˜ wžA’ m M F = G , N R2 .HmK˜ Tlt• ¨¡ M ¤ •wk˜ Tlt• ¨¡ m y @˜ ­w’ P¶AO Hfž ™m§ ¢ylˆ ™O ©@˜ wžAq˜  Ÿ wyž ^¯ d•tl˜ .r˜ ªwqs˜ O§ ¢sfž wžAq˜ @¡  |rt Y˜ @¡ ¢` .TyRC± r˜ ªwqs˜ ‰› |C± šw rmq˜ T•r Ÿy TžCAqm˜A Ÿ wyž A’ ,–˜Ð Ÿ› TyÐA ­w’ —An¡  @h Atb› Tyb§rt˜ ¶Atn˜ “w§ ¢žwžA’  d¤ .As°˜ .m2 ¤ m1 Ÿytlt• © Ÿy AtntF š¤Až ¤ TyÐAl˜ A`˜ wžAq˜ Ÿ› “lWnž ¤ Ažrykf Tq§rV Hk`n˜ P¶AO˜ {` TK’Anm ¨ftkž ¤ An¡ Tlm˜ £@¡ TFCd wqž Ÿ˜ .rlb• Ÿyžw’ Ÿytlt• ©¤Ð Ÿyms Ÿ› wkt T˜¤z`› TykyžAky› Tˆwm› xCdž A›dnˆ .T›A`˜ œys˜ T•r Ÿ› (center of mass) ™q˜ z•r› T•r šz` ¯¤ wqž ,m2 ¤ m1 −→ R ¢`Rw› ŠA`J ¤ M ™q˜ z•r› Tlt• AtŒy} @ .(reduced mass) šA`f˜ :™kK˜ −→ 1 M = m + m , R = (m −→r + m −→r ) , 1 2 M 1 1 2 2 −→ ¤ µ šA`f˜ œs˜ Tlt• @ ™Aqm˜ ¨ .mi Tltk˜ ‰Rw› ŠA`J w¡ ri y :TŒyO˜ −→r ¢`Rw› ŠA`J

1 1 1 −→ −→ −→ = + , r = r1 − r2 . µ m1 m2 @¡ .Ahylˆ r¥ TyCA «w’ w¤ dˆ T˜¤z`m˜ TykyžAkym˜ Tlm˜ ¨n` ¶Atž Ÿ› .Ÿ wyn˜ ˜A˜ wžAq˜ bs Ÿyms Ÿ› Tžwk› Tlm˜ Tbsn˜A “q› .Ÿ wyn˜ š¤± wžAql˜ ‰S§ ¤ r wk§ M ™q˜ z•r›  ,Ty}A˜ £@¡ œys˜ œFr§ ,TyÐA˜ ­w’ T˜A ¨ .­wq˜ µ šA`f˜ œys˜ ‰S§ ™Aqm˜ ¨ .¢t•r ºAn P’Až ‰W’ šA`f˜ CAbtˆ³ Ÿy` @± § ,TysmK˜ Tˆwmm˜ Ylˆ ¶Atn˜ £@¡ “ybW dnˆ Ÿkm§ “lWnm˜ @¡ Ÿ› .TysmK˜ Tˆwmm˜ Tlt• œ\`› ™kK HmK˜ Tlt•  ™Aqm˜ ¨ .(31)—rt ¯ ¨˜At˜A ¤ TysmK˜ Tˆwmm˜ ™q z•r› HmK˜ CAbtˆ .Aht•r ºAn AO’Až A`W’ œFr •wk˜  CAbtˆ Ÿkm§

(Beyond Newton) Ÿ wyž d` A› 5

‰F¤ ªAKž Y˜ (32)A`˜ ÐAtl˜ ¢žwžA’ ¤ T•rl˜ Ÿ wyž Ÿyžw’ E¤r «  œ¡ Ylˆ ¨l§ Amy r`nF .Ah¶Atž (explore) ‘AKktF ¤ Ÿyžwq˜ £@¡ TFCd˜ Tyb¡@˜ wns˜ ºAn Ah`R¤ œ ¨t˜ (principles) ¹ Abm˜ ¤ (concepts) œy¡Afm˜ .Tm\tn› Tmyqts› T•r HmK˜ T•r wk  AS§ Ÿkm§(31) A›dnˆ (Robert Hooke 1635-1703) —w¡ r¤C CAk r Ÿ wyž A• Ð A› šw šd —An¡(32) .TyÐA˜ wžA’ Kt•

36 Ÿyžw’ {`  Y˜ ¹CAq˜ ¢bnž  § .TykyF®k˜ –yžAkyml˜ (golden ages) ºwR Ylˆ Aht`r› Xq m ¤ Ÿ wyž šAmˆ ™b’ T¤r`› žA• _Afž³ .¢˜Amˆ

(Potential) wmk˜ 1.5 w• Ylˆ wqf  œhnk˜ Tflt› TyÐA˜ wžA’ £A Ÿyy¶A§zyf˜ ™` ¤ C A• d` Ÿˆ r¥ ­wq˜A .(mysterious) TS›A‹ ­w’ (Gravitational Force) TyÐA˜ ­w’ Ÿytltk˜ Ÿy d`b˜ A• Amh› :Aw˜› ry‹ A• ©@˜ º¨K˜ ,(action at a distance) ¯ Abt§ ¤ «r± Tltk˜ ww Ar`yF -«r ¤ Tq§rW- Amhž m2 ¤ m1 ­dy¤ Tlt• An`R¤ Anž ™y :Ty˜At˜ Ty˜AkJ³ AS§ —An¡ .(interaction) ryt˜ Ÿkm§ ?¯  ºASf˜ @¡ ¨ Tltk˜ £@¡ Ÿˆ  Až ryyŒ © —An¡ ™¡ ,ºASf˜ ¨ M :Ÿyf’wm˜ Ÿ› A§ @tž  ,@h AnmlF  Ÿk˜ .Tlt• w¤ Ylˆ dmt` ­wq˜ ± ry © dw§ ¯ • ?TyžA˜ Tltk˜ ‰R¤ T\˜ ww˜ Y˜ ­wq˜ £@¡ E¤r rsfž  An˜ y• š¦Ast˜ Ylˆ yž  § ,ryyŒ ww AnmlF ¤ ¨žA˜ ’wm˜ Až@   • ?¢FAy’ Annkm§ y• ¤ ryŒt˜ @¡ T`ybV šw ¨W`§ ¢ž y ¨žA˜ ©r˜ ©džAs› Ÿ› (Laplace 1749-1827) x®¯ A• ­w’  T\®m˜ Ÿ› x®¯ ”®Wž .TyÐAl˜ (local description) Ay`Rw› Af}¤ ry A• A§ ,TyÐA˜ xAyq˜ —@ž T¤r`m˜ ­dyw˜ Tq§rW˜ ¨¡ TyÐA˜ :(33)T’®`˜ ™m`tF œ .­wq˜ £@h r ¤ ™kK “l`t§  § M Tltk˜ 1 Fi = ∂i V (x) ,V (x) ∼ , ri :T’®`˜ “q§ V (x) (potential) wmk˜  by˜

∆x V (x) = −4 π ρ(x) , wmk˜ (source) CdO› ¨¡ ¨t˜ (mass distribution) Tltk˜ ‰§Ew w¡ ρ(x) y “l`t§ ©@˜ £®ˆ T˜ A`ml˜ Ÿm§± ‘rW˜ .V (x) (gravitational potential) ¨lq˜ Sim´eonPoisson) wFw wymyF ¢AR ™ x®¯ T˜ A`› ¨ Ÿk§ œ˜ ρ(x) : (quantities) Aymk˜ Xysbt˜ TyRA§C Tly T§db˜ ¨ wmk˜ rbtˆ .(1781-1840 .Ah`› ™›A`t˜ § ¨t˜ ryb`t˜ Anylˆ ™hs§ Am› (scalar quantity) ¨mlF Cdq› Ÿˆ ­CAbˆ wmk˜ • .(change of coordinates) œ˜A`m˜ ryŒž A›dnˆ ¢nˆ ™m Y˜ (point particle) T§ Am˜ Xqn˜ Ÿyžw’ œym` Ÿ› wmk˜ Annkm§ • .T˜whs dyq` r• TykyžAky› .(potential energy) Tn›Ak˜ T’AW˜ §r` Ÿ› wmk˜ Annkm§ • b} y (general relativity) T›A`˜ Tybsn˜ T§r\ž E¤r ‰› ryŒ Cw›± Ÿk˜ .¨¶A§zy w¤ ¨lq˜ wmkl˜

.T’®`˜ £@¡ rt’ Ÿ› š¤ (Alexis Clairaut 1713-1765) ¤ryl• Hysk˜ wk§  Ÿkm§(33)

37 (Conservation Laws) _Afž³ Ÿyžw’ 2.5 r¡w\˜ TFC ¨ Tmh› TžAk› (conservation laws) _Afž³ Ÿyžw’ ™t :Ÿyžwq˜ £@¡ d¶w Ÿy Ÿ› .Ty`ybW˜ Y˜ Atž ® .Trt˜ ºAn Ah wqž ¨t˜ AFAyq˜ _Afž³ Ÿyžw’ ™hs • .­rmts› TfO AFAyq˜A wqž  r•@ .Ahf}¤ ¤ T`ybWl˜ ­d§d Ÿyžw’ Ÿˆ bl˜ “lWnm˜ ™kK  Ÿkm§ • .šAm˜ ™ybF Ylˆ rlb• ¢ A’ A› ‘AKt•³ ­ • šAm˜ ™ybF Ylˆ lm`tF .šwhml˜ ‘AKktF ­  ™kK • .wn§rtn˜ ‰› (Pauli) ¨˜w ™` Am• ­d§d Amys @ .TyRA§r˜ ™¶Asm˜ Xysbt˜ ­ • _Afž³ Ÿyžw’ šAm`tF AS§ Ÿkm§ • wžA’ šAm`tF ,(central force) ©z•r› ™q ¨ T•r˜ šAm˜ ™ybF Ylˆ degrees of) T§r˜ AC dˆ {fž  ‰yWtsž T•r˜ zˆ _Afž .Ÿyn Y˜ T® Ÿ› (freedom Ÿyžw’ œ¡ (conservation of energy) T’AW˜ _Afž wžA’ CAbtˆ Ÿkm§ ¯ µ d˜ ¢ž ‘rt`ž  Anylˆ § Ÿk˜ ,(fruitful) TwO A¡r• ¤ _Afž³ :(Hendrik Kramers 1894-1952) Er›r• šA’ Am• .T’AWl˜ Aˆ §r` dw§  ,T}A Ty¶A§zyf˜ wl`˜ ¨ ¤ ,T›Aˆ ¨žAsž³ rkf˜ œ˜Aˆ ¨ wk§  d§ » « .T’d Ahr`ž  ™yts§ ¨t˜ ¨¡ œy¡Afm˜ O ¤ œ¡

“ In the world of human thought generally, and in physical science particularly, the most important and fruitful concepts are those to which it is impossible to attach a well-defined meaning. ” Annkm§ ¯ d§dK˜ F°˜ .Ttb˜ A·yJ ¨n` ¯ AhZAfž db› ¤d T’AW˜  ^¯ .¢n› rysy˜ r•@ ¨ftknF ¤ T’AW˜ _Afž db› §CA ¨ QwŒž  T§r\ž šAm`tF T˜¤A› ¤ (Decartes) CAk§ šAmˆ ‰› A§db˜ žA• £@¡  A’ .A› AO Ÿyžwq• ºA§zyf˜ Ÿyžw’ T‹AyO˜ dbm• ¢ZAfž ¤ œz˜ T•r˜ Tym• _Afž Ÿyžw’ T‹AyO˜ Hn‹w¡ ¤ , C ,Hy˜¤ Ÿ› ®• T˜¤Am˜ T’AW˜ Tym¡ ^¯ Ÿ› š¤ znby˜ A• .Tžrm˜ A› AOt˜ ¨ Ty•r˜ T’AW˜ ¤ Ÿ›¥§ A• Am• .A› AOt˜ ™• ¨ AhZAfž ¤ (kemitic energy) (34)Ty•r˜ T’AV Y˜ -Tžr› ryŒ˜ A› AOt˜ T˜A ¨- šwt§ Ty•r˜ T’AW˜ Ÿ› ºz  .(latent energy) Tyl ,{wn˜ ,r˜ ªwqs˜A• CA ­d` -­rtf˜ £@¡ ¨- wy¶A§zyf˜ A’ Ÿyžw’ “§rV Ÿˆ ¶Atn˜ rysf T˜¤A› w¡ A`˜ £A ³ A• ¤ ,A› AOt˜ Ÿ› .Ty•r˜ T’AW˜ T}A T’AWl˜ Ayms› ­dˆ CwhZ Y˜ @¡ «  ._Afž³ ©@˜ (Willem’s Gravesande 1688-1742) dnsr‹ œ˜¤ Tr CAt˜ £@¡ Ÿy ­rf˜ “mˆ  d¤ .(soft clay) Ÿy˜ ŸyV Ylˆ Tyžd`› r• ªwqF ry xC .dW}³ dnˆ ­rk˜ TˆrF ‰r› ‰› FAnt§

(living force) Ty˜ T’AW˜ œF Ahylˆ “lV(34)

38 Ÿyžw’ CwhZ d` –yžAkym˜A wmth§ (mathematicians) wyRA§r˜ d .T·Ak› šAkJ  Ahnyžw’ T‹Ay} ­ Aˆ œhq Aˆ Ylˆ w`R¤ ¤ ,T•rl˜ Ÿ wyž TyˆA`K˜ Ÿ wyž Ÿyžw’ ™§w d§d˜ ¢wt˜ @h˜ T•rtKm˜ P¶AO˜ œ¡ Ÿ› .(scalar quantities) TymlF r§ Aq› Ylˆ dmt` Ÿyžw’ Y˜ (vectorial equations) d’Alembert 1717-) rbm˜ ,(Euler 1707-1783) rl§¤ :šAm˜ ™ybF Ylˆ r•@ž .(Lagrange 1736-1813) žr‹¯ ¤ ,(1783 scalar) ¨mlF Cdqm ­wq˜ {§w` Ylˆ ­d§d˜ A‹AyO˜ £@¡ dmt` Ÿ› Xq Tnkm› A‹AyO˜ £@h .(potential energy) Tn›Ak˜ T’AW˜ Yms§ (function Ÿ› ®• œ\ TylRAf ¯ A`› ¨¡ T•r˜ ¯ A`› ¤ ,«wq˜ Ÿ› QA Šwž ™ œh Ÿk˜ .(potential energy) Tn›Ak˜ T’AW˜ ¤ (kenitic energy) Ty•r˜ T’AW˜ ¨w•A ¤ (Hamilton 1805-1865) wtl›A¡ šAmˆ Y˜ At ¯ A`m˜ £@¡ ™} Ÿyt’AW˜ Šwm› _Afž T\®› Y˜ šAmˆ± £@¡   .(Jacobi 1804-1851) .Tn›Ak˜ ¤ Ty•r˜ –yžAky› ,(thermodynamics) T§Cr˜ –y›An§d˜ ¨ T§r\n˜ šAmˆ± CwW ‰› ¯µ CwhZ ¤ ,(electromagnetism) TysyVAnŒ›¤rhk˜ ¤ ,(hydrodynamics) ™¶ws˜ ¨ “q› (universal principle) Aˆ db› —An¡  ^w˜ TyˆAnO˜ T\hn˜ ‰› .(conservation of total energy) Tylk˜ T’AW˜ _Afž w¡ ¤ ¯ ¯Am˜ ‰ym Ÿyžw’ Xr˜ (Emmy Noether 1882-1935) rwž ¨m§ šAmˆ CA\tž Anylˆ A• :(symmetries) rZAnt˜ _Afž³ time) Ÿ›z˜ ¨ Asž³  rZAnt˜ ⇐⇒ Tylk˜ T’AW˜ _Afž • .(translation invariance Akm˜ ¨ Asž³  rZAnt˜ ⇐⇒ Tylk˜ T•r˜ Tym• _Afž • .(space translation invariance)

.(rotation invariance) C¤dl˜  rZAnt˜ ⇐⇒ T•r˜ zˆ _Afž • .ºA§zyf˜ Ÿyžw’ T‹AyO˜ H•A`m˜ £A ³ ¨ ­ Aˆ rwž T§r\ž ™m`ts

39