DOCSLIB.ORG

Quantised Inertia, Propellant-Less Thrust and Interstellar Travel

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Quantised Inertia, Propellant-Less Thrust and Interstellar Travel Quantised inertia, Propellant-less Thrust & Interstellar travel. Proxima Centauri b Dr Mike McCulloch, University of Plymouth. Presentation to FISW 29th June 2019 Galaxy rotation problem Solution?: Quantised inertia Application: propellant-less thrust Sol Can QI get us to P-Centauri in 10 years? (FTL?) Galaxies Spin Faster than Physics Predicts Centrifugal force STAR SPEED GRAVITY Emilio Segre visual archives Segre visual Emilio So they should fly apart inertially, but don’t! (Zwicky, 1933, Rubin, 1980) Dark Matter is Added Arbitrarily Centrifugal force STAR SPEED Dark Matter Has to be adjusted to fit every galaxy! Inertia is a Mystery. Inertia has never been understood, just assumed: “Things keep going” Inertial mass is not due to a Higgs field: only explains the mass of quarks. When quarks combine to form particles, the mass is 1000x the mass of the quarks. This mass is not explained by the Higgs mechanism. I will propose that inertia arises from both relativity & quantum mechanics. The Quantum Background Heisenberg px 2 Uncertainty Heisenberg Virtual Particles The Proof: the Casimir Effect Conducting Plates Virtual Particles A Model for Inertia. An Ocean Analogy DOCK SHIP The ship will move towards the dock Another Kind of Dock/Wall/Plate is a Horizon ME If you ran fast enough away from this lecture.. ..you wouldn’t hear my voice. I would be behind a horizon for you. A Gravity Horizon Makes Hawking Radiation Source: Nat Geographic Nat Source: Black hole event horizon Virtual Particles A Rindler Horizon Makes Unruh Radiation Rindler Horizon Accelerating Spaceship Science.ca Unruh radiation Has Unruh radiation been seen? Maybe. The wavelength of Unruh radiation depends on acceleration,a: 8c2 a For terrestrial acceleration (9.8 m/s2) it is 7 light years: unseeable But for very high accelerations, they may be short enough to be seen. Eg: electrons curving round a tight bend (a nanotip) at close to light speed Unruh wavelength = Smolyaninov, 2005. http://arxiv.org/pdf/cond-mat/0510743.pdf A Model for Inertia HORIZON Unruh waves (relativity) (Quantum mechanics) OBJECT McCulloch, M.E., 2013. Inertia from an asymmetric Casimir effect. EPL, 101, 59001. Object resists acceleration = inertia! A Recent Numerical Simulation by Dr J. Lucio (Plymouth University). Rindler horizon More Unruh Waves Accelerated Particle The Cosmic Horizon Stymies the aCe A horizon is a boundary to what can be seen. Hubble horizon: V>c Horizon, v=c V=c Us The co-moving Hubble horizon is 8.8x1026m away. Quantised Inertia Cosmic horizon HORIZON OBJECT McCulloch, M.E., 2007. Modelling the Pioneer anomaly as modified inertia. MNRAS, 376(1), 338-342 Object resists motion less QI Predicts that Inertia Fails at Low Acceleration Hubble horizon Hubble horizon Unruh waves For high accelerations At low accelerations the aCe mechanism works all Unruh waves disappear aCe mechanism fails. No inertia! QI Solves the Galaxy Rotation Problem. Centrifugal force STAR SPEED GRAVITY No Adjustment. Simple. Only mass + c + Hubble scale Quantised Inertia Predicts Cosmic Acceleration When a is small, then inertia reduces in a new way: mi 2 2c mI mg 1 m g a Equivalence Principle 1 Using Newton’s 2nd & gravity laws QI/MiHsC GMm g F mI a 2 r Predicts a minimum acceleration a g 0 2 Acceleration GM 2c New term indep’ of mass, EP OK!! a 2 r When M=0 Cosmic acceleration. (dark energy) Quantised Inertia vs 153 Galaxies, SPARC catalogue (Thanks to Prof S. McGaugh for SPARC data) 2GMc 2 v4 QI & MoND agree but QI has no adjustable parameters. McCulloch, 2017. Galaxy rotations from quantised inertia & visible matter only. ApSS, 362, 149. https://arxiv.org/abs/1709.04918 Model: Only QI Correctly Binds Wide Binaries Only QI agrees with the data. A Simulation by Dr J. Lucio paper was submitted to Astrophys. & Sp. Sci.. McCulloch & Lucio, 2019. Now accepted subject to mods.. If We Understand Inertia, We Can Control It (matter) (light) A propellant-less alternative to rocket launches The Casimir Effect Is a Tiny Example Fig 1. The Casimir effect. ZPF gradient pulls plates together Fig 2. V shaped cavity may move towards its open end Fig 1 Fig 2 Fig 3 Fig 3. V shaped cavity with energy pumped in, moves the other way The EmDrive An anomaly discovered about 2001 by engineer Roger J. Shawyer, a satellite engineer: an unexplained motion of a cone-shaped microwave resonant cavity (copper) towards its narrow end. Roger Shawyer Could be an experimental error, but no-one has yet identified one. Quantised Inertia & the EmDrive Assume the copper walls are horizons & damp Unruh waves more at the narrow end. QI and the cavity asymmetry is constantly shifting the input photons’ centre of mass towards the wide end. To conserve momentum the cavity has to move towards its narrow end. Quantised Inertia vs Emdrive Thrust Data The QI formula () has no adjustable 6PQL 1 1 parameters. F c nb (L 4wb ) ns (L 4ws ) P = power input (W), Q=quality factor, L = length, n = refractive index, ws/ws are the - cavity end widths. McCulloch, M.E., 2017. Testing quantised inertia on emdrives with dielectrics. EPL, 118, 34003 Woodward Effect: Quantised Inertia predicts It Large brass cap Thin brass cap Thrust=50μN PZT AC in P=145W The simple QI formula used for the emdrive PQL 1 1 F c wb ws Assume the thick/thin ends do/don't damp Unruh 145 50 0.025 1 1 F 310 8 8.810 26 0.025 F 24 N McCulloch, M.E., 2018. Propellant-less propulsion from quantised inertia. JoSE, 7, 3. Asymmetric Capacitors (NASA, 2004) - + Observed Thrust =14mN Using the same QI formula PQL 1 1 PQ F ~ c wb ws c AV 2 F d 2 8.85 10 12 0.03 2 44000 2 F 13.3mN 0.0635 2 McCulloch, M.E., 2018. Propellant-less propulsion from quantised inertia. JoSE, 7, 3. Quantised Inertia & Interstellar Travel Proxima Centauri b Accelerate for one year to 0.5c, 4.7 m/s2 Travel at 0.5c for 7.4 Earth years Decelerate for 1 year at 4.7 m/s2 Sol Emdrive & Interstellar Travel Mass Proxima Centauri b 6 people = 500kg Food = 37000 kg / 10 years Water = 480,000 / 10 years Structure (ISS) = 417000 kg TOTAL = 934500 kg Power NASA SAFE-400 fissors = 0.1kW To accelerate to 0.5c in 1yr Sol Need F=ma = 4,400,000 N Emdrive provides ~0.15 N/kW Need 29 GW How Can We Enhance Thrust? The predictive formula from QI for all these drives is P = Power, Q = Quality factor, n = Refractive index. Enhance thrust by boosting P, 1.2MW = levitation. Enhance thrust by reducing c. Use a dielectric… Enhance thrust by boosting Q… The Taylor Experiment T. Taylor pointed out (2017) that quantised inertia implies that an emdrive using visible light would have a 1000x the Q: more powerful. T. S. Taylor (2017), Propulsive Forces using High-Q Asymmetric High Energy Laser Resonators. JBIS, 70, pp.238-243. Quantised Inertia & Interstellar Travel Mass Proxima Centauri b 6 people = 500kg Food = 37000 kg / 10 years Water = 480,000 / 10 years Structure (ISS) = 417000 kg TOTAL = 934,500 kg Power NASA SAFE-400 fission r’s = 0.1kW To accelerate to 0.5c in 1yr Sol Need F=ma = 4,400,000 N Taylor drive provides ~150 N/kW. Need 30 MW Application to Interstellar Travel Proxima Centauri b Accelerate for one year to 0.5c (4.7 m/s2) Travel at 0.5c for 7.4 Earth years Decelerate for 1 year at 4.7 m/s2 While 9.4 years passes on Earth only 8.1 years passes on the ship Can go anywhere in the galaxy in a lifetime by travelling close to c Sol BUT it needs unfeasible amount of fuel/energy (size of small planet). Unless you use quantised inertia! I’ve Been Awarded $1.3M Funding by DARPA 1. Make quantised inertia more predictive – more exact. 2. Demonstrate the capability to counter gravity – launch. DARPA NLM, Project title: Propellant-less Propulsion from Quantised Inertia Teams University of Plymouth: Dr Mike McCulloch (PI) & Dr Jesus Lucio (postdoc) TU-Dresden: Dr Martin Tajmar, Dr O. Neunzig, Dr N. Weikert. University of Alcala, Madrid Spain: Prof Jose Luis Perez-Diaz & team. Experiment in Madrid Another kind of light- emdrive, using a egg- shaped fibre optic loop. Prof J-L Perez-Diaz University of Alcala Predicted Thrust = 1 µN Observed (?) Thrust = 1-4 µN Laser in, 0.1W Experiment at Technical University of Dresden The German team are building the Taylor thruster, & a torsion balance. Laser input Shield Cavity Thrust Prof Martin Tajmar - First tests of initial version (left) by September... In brief: Quantised Inertia & FTL? By combining quantised inertia with special relativity 22 1 − 푎Θ 푚푖 = 푚 1 푣2 2 1 − 2 And using F=ma, we get 1 퐹 푣2 2 2푐2 a= 1 − + 푚 푐2 Θ The 1st term is as usual, and says acceleration 0 for all F when v=c The 2nd term is new (QI) & says even when v=c, a > 0.. Reduce Θ? See McCulloch, 2008. JBIS, 61, 373-378. arxiv/0712.3022 (sectn 4) Conclusions To get to Proxima Centauri in ~10 years requires propellant-less thrust. Quantised inertia is well proven now on astrophysical scales. QI suggests propellantless thrust - energised vacuum + horizon. QI also predicts some of the thrust anomalies that have been seen. DARPA have funded further theoretical development, & lab tests of QI. If QI-thrust can be demonstrated, we can get to Proxima in ~10 years. My email: [email protected] My blog: Physics from the edge Twitter: memcculloch TEDx talk: How quantised inertia gets rid of dark matter.
Load more

Recommended publications
  • Nasa Tm X-1864 *
    NASA TECHNICAL. • £HP2fKit NASA TM X-1864 * ... MEMORANDUM oo fe *' > ;ff f- •* '• . ;.*• f PROPULSION • FOR *MANN1D E30PLORATION-k '* *Of THE SOEAE " • » £ Moedkel • - " *' ' ' y Lem$ Research Center Cleveland, Qbt® NATIONAL AERONAUTICS AND SFACE ADMINISTRATION • WASHINGTON, D. €, * AUCUST 1969 NASA TM X-1864 PROPULSION SYSTEMS FOR MANNED EXPLORATION OF THE SOLAR SYSTEM By W. E. Moeckel Lewis Research Center Cleveland, Ohio NATIONAL AERONAUTICS AND SPACE ADMINISTRATION For sale by the Clearinghouse for Federal Scientific and. Technical Information Springfield, Virginia 22151 - CFSTI price $3.00 ABSTRACT What propulsion systems are in sight for fast interplanetary travel? Only a few show promise of reducing trip times to values comparable to those of 16th century terrestrial expeditions. The first portion of this report relates planetary round-trip times to the performance parameters of two types of propulsion systems: type I is specific-impulse limited (with high thrust), and type n is specific-mass limited (with low thrust). The second part of the report discusses advanced propulsion concepts of both types and evaluates their limitations. The discussion includes nuclear-fission . rockets (solid, liquid, and gaseous core), nuclear-pulse propulsion, nuclear-electric rockets, and thermonuclear-fusion rockets. Particular attention is given to the last of these, because it is less familiar than the others. A general conclusion is that the more advanced systems, if they prove feasible, will reduce trip time to the near planets by factors of 3 to 5, and will make several outer planets accessible to manned exploration. PROPULSION SYSTEMS FOR MANNED EXPLORATION OF THE SOLAR SYSTEM* byW. E. Moeckel Lewis Research Center SUMMARY What propulsion systems are in sight for fast interplanetary travel? Only a few show promise of reducing trip times to values comparable to those of 16th century terrestrial expeditions.
    [Show full text]
  • Pulsed Fusion Space Propulsion: Computational Ideal Magneto-Hydro Dynamics of a Magnetic Flux Compression Reaction Chamber
    Pulsed Fusion Space Propulsion: Computational Ideal Magneto-Hydro Dynamics of a Magnetic Flux Compression Reaction Chamber G. Romanelli Master of Science Thesis Space Systems Engineering PULSED FUSION SPACE PROPULSION: COMPUTATIONAL IDEAL MAGNETO-HYDRO DYNAMICS OFA MAGNETIC FLUX COMPRESSION REACTION CHAMBER by Gherardo ROMANELLI to obtain the degree of Master of Science at the Delft University of Technology, to be defended publicly on Friday February 26, 2016 at 10:00 AM. Student number: 4299876 Thesis committee: Dr. A. Cervone, TU Delft, supervisor Prof. Dr. E. K. A. Gill, TU Delft Dr. Ir. E. Mooij, TU Delft Prof. A. Mignone, Politecnico di Torino An electronic version of this thesis is available at http://repository.tudelft.nl/. To boldly go where no one has gone before. James T. Kirk ACKNOWLEDGEMENTS First of all I would like to thank my supervisor Dr. A. Cervone who has always sup- ported me despite my “quite exotic” interests. He left me completely autonomous in shaping my thesis project, and still, was always there every time I needed help. Then, I would of course like to thank Prof. A. Mignone who decided to give his contribute to this seemingly crazy project of mine. His advice arrived just in time to give an happy ending to this story. Il ringraziamento più grande, però, va di certo alla mia famiglia. Alla mia mamma e a mio babbo, perché hanno sempre avuto fiducia in me e non hanno mai chiesto ragioni o spiegazioni alle mie scelte. Ai miei nonni, perché se di punto in bianco, un giorno di novembre ho deciso di intraprendere questa lunga strada verso l’Olanda, l’ho potuto fare anche per merito loro.
    [Show full text]
  • 9.0 BACKGROUND “What Do I Do First?” You Need to Research a Card (Thruster Or 9.1 DESIGNER’S NOTES Robonaut) with a Low Fuel Consumption
    9.2 TIPS FOR INEXPERIENCED ROCKET CADETS 9.0 BACKGROUND “What do I do first?” You need to research a card (thruster or 9.1 DESIGNER’S NOTES robonaut) with a low fuel consumption. A “1” is great, a “4” The original concept for this game was a “Lords of the Sierra Madre” in is marginal. The PRC player*** can consider an dash to space. With mines, ranches, smelters, and rail lines all purchased and claim Hellas Basin on Mars, using just his crew card. He controlled by different players, who have to negotiate between them- needs 19 fuel steps (6 WT) along the red route to do this. selves to expand. But space does not work this way. “What does my rocket need?” Your rocket needs 4 things: Suppose you have a smelter on one main-belt asteroid, powered by a • A card with a thruster triangle (2.4D) to act as a thruster. • A card with an ISRU rating, if its mission is to prospect. beam-station on another asteroid, and you discover platinum on a third • A refinery, if its mission is to build a factory. nearby asteroid. Unfortunately for long-term operations, next year these • Enough fuel to get to the destination. asteroids will be separated by 2 to 6 AUs.* Furthermore, main belt Decide between a small rocket able to make multiple claims, Hohmann transfers are about 2 years long, with optimal transfer opportu- or a big rocket including a refinery and robonaut able to nities about 7 years apart. Jerry Pournelle in his book “A Step Farther industrialize the first successful claim.
    [Show full text]
  • Humanity and Space
    10/17/2012!! !!!!!! Project Number: MH-1207 Humanity and Space An Interactive Qualifying Project Submitted to WORCESTER POLYTECHNIC INSTITUTE In partial fulfillment for the Degree of Bachelor of Science by: Matthew Beck Jillian Chalke Matthew Chase Julia Rugo Professor Mayer H. Humi, Project Advisor Abstract Our IQP investigates the possible functionality of another celestial body as an alternate home for mankind. This project explores the necessary technological advances for moving forward into the future of space travel and human development on the Moon and Mars. Mars is the optimal candidate for future human colonization and a stepping stone towards humanity’s expansion into outer space. Our group concluded space travel and interplanetary exploration is possible, however international political cooperation and stability is necessary for such accomplishments. 2 Executive Summary This report provides insight into extraterrestrial exploration and colonization with regards to technology and human biology. Multiple locations have been taken into consideration for potential development, with such qualifying specifications as resources, atmospheric conditions, hazards, and the environment. Methods of analysis include essential research through online media and library resources, an interview with NASA about the upcoming Curiosity mission to Mars, and the assessment of data through mathematical equations. Our findings concerning the human aspect of space exploration state that humanity is not yet ready politically and will not be able to biologically withstand the hazards of long-term space travel. Additionally, in the field of robotics, we have the necessary hardware to implement adequate operational systems yet humanity lacks the software to implement rudimentary Artificial Intelligence. Findings regarding the physics behind rocketry and space navigation have revealed that the science of spacecraft is well-established.
    [Show full text]
  • A New Vision for Fusion Energy Research: Fusion Rocket Engines for Planetary Defense Abstract We Argue That It Is Essential Fo
    LA-UR-15-23198 A New Vision for Fusion Energy Research: Fusion Rocket Engines for Planetary Defense G. A. Wurden1, T. E. Weber1, P. J. Turchi2, P. B. Parks3, T. E. Evans3, S. A. Cohen4, J. T. Cassibry5, E. M. Campbell6 1Los Alamos National Laboratory 2Santa Fe, NM 3General Atomics 4Princeton Plasma Physics Laboratory 5University of Alabama, Huntsville 6Sandia National Laboratory Abstract We argue that it is essential for the fusion energy program to identify an imagination- capturing critical mission by developing a unique product which could command the marketplace. We lay out the logic that this product is a fusion rocket engine, to enable a rapid response capable of deflecting an incoming comet, to prevent its impact on the planet Earth, in defense of our population, infrastructure, and civilization. As a side benefit, deep space solar system exploration, with greater speed and orders-of-magnitude greater payload mass would also be possible. The US Department of Energy’s magnetic fusion research program, based in its Office of Science, focuses on plasma and fusion science1 to support the long term goal of environmentally friendly, socially acceptable, and economically viable electricity production from fusion reactors.2 For several decades the US magnetic fusion program has had to deal with a lack of urgency towards and inconsistent funding for this ambitious goal. In many American circles, fusion isn’t even at the table3 when it comes to discussing future energy production. Is there another, more urgent, unique, and even more important application for fusion? Fusion’s unique application As an on-board power source and thruster for fast propulsion in space,4 a fusion reactor would provide unparalleled performance (high specific impulse and high specific power) for a spacecraft.
    [Show full text]
  • Advanced Ion Propulsion Using Krypton Isotope for Rocket Engine
    Special Issue - 2019 International Journal of Engineering Research & Technology (IJERT) ISSN: 2278-0181 CONFCALL - 2019 Conference Proceedings Advanced Ion Propulsion using Krypton Isotope for Rocket Engine R. Saro C. Madeshwaran Dept of AERO-PITS Dept of AERO-PITS Mr. V. Keerthivasan Mr. T. Anbarasan Assistant Professor Head of the Department Dept of AERO-PITS Dept of AERO-PITS Abstract:- A Rocket engine is a storage device of rocket propellant which forms a high speed propulsive jet of fluid with a high temperature gas. Krypton isotope are used for producing hot positrons. Isotopes are obtained using neutron that produce reactors. The positrons were generated and directed towards action which on further obtain fusion propulsion. Positron dynamics reduce the speed of positron that are generated. It consists of moderator device with several layers of silicon carbide film which provide individual positrons. An electric field makes the particle to move towards each layers where the particles are cooled. The catalysed fusion reaction of positron is in a block of deuterium. When the particle triggers with deuterium, it produces thrust. FIG .1.1-ROCKET ENGINE Keywords – Positrons, Silicon carbide layer, Deuterium, Neutron capture. ADVANCED PROPULSION INTRODUCTION Spacecraft has been slow down due to chemical The word propulsion refers push forward or to move an rocket speed over years. Only speed over 1 million object forward. A propulsion system has a mechanical miles per hour is possible over the year 2050. New power which converts power to propulsive force. ion drives as being developed to provide ten times Normally, this system consists of two classifications – air better than ISP.
    [Show full text]
  • Fusion Rockets for Planetary Defense
    | Los Alamos National Laboratory | Fusion Rockets for Planetary Defense Glen Wurden Los Alamos National Laboratory Exploratory Plasma Research Workshop Feb 26, 2016 LA-UR-16-21396 LA-UR-15-xxxx UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA April 2014 | UNCLASSIFIED | 1 | Los Alamos National Laboratory | My collaborators on this topic: T. E. Weber1, P. J. Turchi2, P. B. Parks3, T. E. Evans3, S. A. Cohen4, J. T. Cassibry5, E. M. Campbell6 . 1Los Alamos National Laboratory . 2Santa Fe, NM . 3General Atomics . 4Princeton Plasma Physics Laboratory . 5University of Alabama, Huntsville . 6LLE, University of Rochester, Rochester Wurden et al., Journal of Fusion Energy, Vol. 35, 1, 123 (2016) UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA April 2014 | UNCLASSIFIED | 2 | Los Alamos National Laboratory | How many ways is electricity made today? Primary Energy Source Nominally CO2 Free Current capacity (%) Expected Lifetime (yrs) Natural Gas no 100 Coal no 80.6 400 Oil no < 50 Biomass neutral 11.4 > 400 Wind yes 0.5 > 1000 Solar photovoltaic yes 0.06 > 1000 Solar thermal yes 0.17 > 1000 Hydro yes 3.3 > 1000 Wave/Tidal yes 0.001 > 1000 Geothermal yes 0.12 > 1000 Nuclear fission yes 2.7 > 400 [i] REN21–Renewable Energy Policy Network for the 21st Century Renewables 2012–Global Status Report, 2012, http://www.map.ren21.net/GSR/GSR2012.pdf , http://en.wikipedia.org/wiki/Energy_development UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA April 2014 | UNCLASSIFIED | 3 | Los Alamos National Laboratory | What is the most important product that fusion could deliver? .
    [Show full text]
  • Arxiv:2002.12686V1 [Physics.Pop-Ph] 28 Feb 2020 SOI Sphere of Influence VEV Variable Ejection Velocity
    Achieving the required mobility in the solar system through Direct Fusion Drive Giancarlo Genta1 and Roman Ya. Kezerashvili2;3;4, 1Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy 2Physics Department, New York City College of Technology, The City University of New York, Brooklyn, NY, USA 3The Graduate School and University Center, The City University of New York, New York, NY, USA 4Samara National Research University, Samara, Russian Federation (Dated: March 2, 2020) To develop a spacefaring civilization, humankind must develop technologies which enable safe, affordable and repeatable mobility through the solar system. One such technology is nuclear fusion propulsion which is at present under study mostly as a breakthrough toward the first interstellar probes. The aim of the present paper is to show that fusion drive is even more important in human planetary exploration and constitutes the natural solution to the problem of exploring and colonizing the solar system. Nomenclature Is specific impulse m mass mi initial mass ml mass of payload mp mass of propellant ms structural mass mt mass of the thruster mtank mass of tanks t time td departure time ve ejection velocity F thrust J cost function P power of the jet α specific mass of the generator γ optimization parameter ∆V velocity increment DFD Direct Fusion Drive IMLEO Initial Mass in Low Earth Orbit LEO Low Earth Orbit LMO Low Mars Orbit NEP Nuclear Electric Propulsion NTP Nuclear Thermal Propulsion SEP Solar Electric Propulsion arXiv:2002.12686v1 [physics.pop-ph] 28 Feb 2020 SOI Sphere of Influence VEV Variable Ejection Velocity I.
    [Show full text]
  • DIRECT FUSION DRIVE for Interstellar Exploration S.A
    Journal of the British Interplanetary Society VOLUME 72 NO.2 FEBRUARY 2019 General interstellar issue DIRECT FUSION DRIVE for Interstellar Exploration S.A. Cohen et al. INTERMEDIATE BEAMERS FOR STARSHOT: Probes to the Sun’s Inner Gravity Focus James Benford & Gregory Matloff REALITY, THE BREAKTHROUGH INITIATIVES and Prospects for Colonization of Space Edd Wheeler A GRAVITATIONAL WAVE TRANSMITTER A.A. Jackson and Gregory Benford CORRESPONDENCE www.bis-space.com ISSN 0007-084X PUBLICATION DATE: 29 APRIL 2019 Submitting papers International Advisory Board to JBIS JBIS welcomes the submission of technical Rachel Armstrong, Newcastle University, UK papers for publication dealing with technical Peter Bainum, Howard University, USA reviews, research, technology and engineering in astronautics and related fields. Stephen Baxter, Science & Science Fiction Writer, UK James Benford, Microwave Sciences, California, USA Text should be: James Biggs, The University of Strathclyde, UK ■ As concise as the content allows – typically 5,000 to 6,000 words. Shorter papers (Technical Notes) Anu Bowman, Foundation for Enterprise Development, California, USA will also be considered; longer papers will only Gerald Cleaver, Baylor University, USA be considered in exceptional circumstances – for Charles Cockell, University of Edinburgh, UK example, in the case of a major subject review. Ian A. Crawford, Birkbeck College London, UK ■ Source references should be inserted in the text in square brackets – [1] – and then listed at the Adam Crowl, Icarus Interstellar, Australia end of the paper. Eric W. Davis, Institute for Advanced Studies at Austin, USA ■ Illustration references should be cited in Kathryn Denning, York University, Toronto, Canada numerical order in the text; those not cited in the Martyn Fogg, Probability Research Group, UK text risk omission.
    [Show full text]
  • Research Institution List
    NASA 2017 STTR Program Phase II Selections - Research Institution List Proposals Selected for Negotiation of Contracts Aerospace Federally Funded Research and Development Center 2310 E. El Segundo Blvd. El Segundo, CA Luna Innovations, Inc. 301 1st Street Southwest, Suite 200 Roanoke, VA 24011 Michael Pruzan (540) 769-8430 17-2-T12.02-9846 KSC Efficient Composite Repair Methods for Launch Vehicles [1] Case Western Reserve University 10900 Euclid Ave. Cleveland, OH 44106 EleQuant Knowledge Innovation Data Science, LLC 1801 Swann Street Northwest, #302 Washington, DC 20009 Regina Llopis (415) 978-9800 17-2-T3.02-9967 GRC Holomorphic Embedding for Loadflow Integration of Operational Thermal and Electric Reliable Procedural Systems [2] Dartmouth College 207 Parkhurst Hall Hanover, NH Creare, LLC 16 Great Hollow Road Page 1 of 11 NASA 2017 STTR Program Phase II Selections - Research Institution List Hanover, NH 3755 Robert Kline-Schoder (603) 640-2487 17-2-T6.02-9840 JSC Volume Sensor for Flexible Fluid Reservoirs in Microgravity [3] Florida Institute of Technology 150 W University Blvd Melbourne, FL 32901 Jaycon Systems 801 East Hibiscus Melbourne, FL 32901 Jiten Chandiramani (321) 505-4560 17-2-T11.02-9854 ARC Vision-Based Navigation for Formation Flight onboard ISS [4] Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge, MA 77058 CrossTrac Engineering,Inc. 2730 Saint Giles Lane Mountain View, CA 94040 John Hanson (408) 898-0376 17-2-T11.02-9927 GSFC Optical Intersatellite Communications for CubeSat Swarms [5] Mississippi
    [Show full text]
  • Fusion Rockets for Planetary Defense
    | Los Alamos National Laboratory | Fusion Rockets for Planetary Defense Glen Wurden Los Alamos National Laboratory PPPL Colloquium March 16, 2016 LA-UR-16-21396 LA-UR-15-xxxx UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA | Los Alamos National Laboratory | My collaborators on this topic: T. E. Weber1, P. J. Turchi2, P. B. Parks3, T. E. Evans3, S. A. Cohen4, J. T. Cassibry5, E. M. Campbell6 . 1Los Alamos National Laboratory . 2Santa Fe, NM . 3General Atomics . 4Princeton Plasma Physics Laboratory . 5University of Alabama, Huntsville . 6LLE, University of Rochester, Rochester Wurden et al., Journal of Fusion Energy, Vol. 35, 1, 123 (2016) UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA | Los Alamos National Laboratory | How many ways is electricity made today? Primary Energy Source Nominally CO2 Free Current capacity (%) Expected Lifetime (yrs) Natural Gas no 100 Coal no 80.6 400 Oil no < 50 Biomass neutral 11.4 > 400 Wind yes 0.5 > 1000 Solar photovoltaic yes 0.06 > 1000 Solar thermal yes 0.17 > 1000 Hydro yes 3.3 > 1000 Wave/Tidal yes 0.001 > 1000 Geothermal yes 0.12 > 1000 Nuclear fission yes 2.7 > 400 [i] REN21–Renewable Energy Policy Network for the 21st Century Renewables 2012–Global Status Report, 2012, http://www.map.ren21.net/GSR/GSR2012.pdf , http://en.wikipedia.org/wiki/Energy_development UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA | Los Alamos National Laboratory | What is the most important product that fusion could deliver? .
    [Show full text]
  • Iaa Commission Iii Sg 2 – Nuclear Space Power and Propulsion
    IAA COMMISSION III SG 2 – NUCLEAR SPACE POWER AND PROPULSION M. Auweter-Kurtz C. Bruno D. Fearn H. Kurtz T.J. Lawrence R.X. Lenard List of contents Introduction 8 1. Physics of Nuclear Propulsion – An Introduction 11 1.1. ABSTRACT 11 1.2. Introduction 11 1.3. Fundamental Physics 12 1.3.1. Forces 12 1.4. Propulsion 19 1.4.3. Power 23 1.4.4. Mass 25 1.5. Nuclear Propulsion Strategies 27 1.5.1. Nuclear Thermal Rockets (NTR) 27 1.5.2. Nuclear Electric Propulsion (NEP) 31 1.5.3. A Comparison between Chemical and NTR/NEP Isp 32 1.6. Massless (Photonic) Propulsion 33 1.7. Conclusions 34 1.8. References 35 2. Nulcear Thermal Rocket Propulsion Systems 38 2.1. ABSTRACT 38 2.2. Introduction 38 2.3. System Configuration and Operation 41 2.4. Particle-Bed Reactor 46 2.4.1. CERMET 47 2.5. Safety 49 2.6. MagOrion and Mini-MagOrion 51 2.7. Conclusions 53 2.8. References 54 3. The application of ion thrusters to high thrust, high specific impulse nuclear-electric missions 57 3.1. ABSTRACT 57 3.2. Introduction 60 3.3. Background 62 3.3.1. Space Nuclear Programmes 62 2 3.3.2. Advantages of Electric Propulsion 63 3.3.3. Propulsion System Parameters 64 3.3.4. Propulsion Technology Review 66 3.3.4.1. Gridded Ion Engines 66 3.3.4.2. The Hall-Effect Thruster 69 3.3.4.3. Magnetoplasmadynamic (MPD) Thrusters 71 3.3.4.4. Variable Specific Impulse Magnetoplasma Rocket (VASIMR) 72 3.4.
    [Show full text]