MY FIRST THREE CACHET COVER DESIGNS by Philip S. Dockter
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HISTORICAL PERSPECTIVE a Need for Speed
n HISTORICAL PERSPECTIVE A need for speed Mach 0.8 to 1.2 and above the speed of powerful turbine engine available. To mit- Skystreak taught lots sound, respectively). The U.S. Army Air igate as much risk as possible, the team Forces took responsibility for supersonic kept the design simple, using a conven- about flight near research—which resulted in Chuck Yea- tional straight wing rather than the new ger breaking the sound barrier in the Bell and mostly unproven swept wing. The the sound barrier X-1 on Oct. 14, 1947. That historic event 5,000-lb.-thrust (22-kilonewton) Allison overshadowed the highly successful re- J35-A-11 engine filled the fuselage, leav- BY MICHAEL LOmbARDI search conducted by the pilots who flew ing just enough room to house instrumen- s World War II was coming to a the Douglas D-558-1 Skystreak to the edge tation and a pilot in a cramped cockpit. close, advances in high-speed aero- of the sound barrier while capturing new Because of the lack of knowledge about Adynamics were rapidly progressing world speed records. the survivability of a high-altitude, high- beyond the ability of the wind tunnels of The D-558-1 was developed by the speed bailout, Douglas engineers designed the day, prompting a dramatic expansion Douglas Aircraft Company, today a part a jettisonable nose section that could pro- of flight-test research and experimental of Boeing, at its El Segundo (Calif.) tect the pilot until a safe bailout speed was aircraft. Division. It was designed by a team led reached. -
Certified Mail and Its First Day of Issue by Patrick Crosby a Stamp Collector Can Complete a Scott U.S
Certified Mail and Its First Day of Issue By Patrick Crosby A stamp collector can complete a Scott U.S. back-of-the-book category with just one stamp valued at 75¢ mint or used. I’m referring to the 1955 Certified Mail stamp (Scott # FA1) which helped the U.S. Post Office Department (P.O.D.) inaugurate Certified Mail service. This stamp and Certified Mail become much more interesting when on cover, like the featured postcard’s first day of issue usage. Postmaster General Arthur Summerfield called the new Certified Mail service a “change in the registered mail service,” reducing costs to patrons and speeding delivery on at least 25 million letters a year. Registered mail requires special bundling, recording of information, and security at every handling point. For 15¢ Certified Mail would offer proof of mailing and proof of receipt with no indemnity (insurance) or special security on first-class items that have no intrinsic value as opposed to the minimum 40¢ registry fee. A patron would pay for first-class postage and the Certified Mail fee, then he would receive a numbered receipt. The mailed item would be entered into the ordinary mail stream (unless airmail or special delivery) with a two-part Certified Mail label, one part adhered to the envelope. When delivered, the carrier or postal employee was to have the receipt portion signed by a recipient, then remove the receipt portion where rouletted and return it to the delivery post office for filing. If the patron had requested a return receipt (showing when, where, and to whom an item was delivered) it would have been noted on the mailed item and a fee of 7¢ would have been paid for in postage. -
Airspace: Seeing Sound Grades
National Aeronautics and Space Administration GRADES K-8 Seeing Sound airspace Aeronautics Research Mission Directorate Museum in a BO SerieXs www.nasa.gov MUSEUM IN A BOX Materials: Seeing Sound In the Box Lesson Overview PVC pipe coupling Large balloon In this lesson, students will use a beam of laser light Duct tape to display a waveform against a flat surface. In doing Super Glue so, they will effectively“see” sound and gain a better understanding of how different frequencies create Mirror squares different sounds. Laser pointer Tripod Tuning fork Objectives Tuning fork activator Students will: 1. Observe the vibrations necessary to create sound. Provided by User Scissors GRADES K-8 Time Requirements: 30 minutes airspace 2 Background The Science of Sound Sound is something most of us take for granted and rarely do we consider the physics involved. It can come from many sources – a voice, machinery, musical instruments, computers – but all are transmitted the same way; through vibration. In the most basic sense, when a sound is created it causes the molecule nearest the source to vibrate. As this molecule is touching another molecule it causes that molecule to vibrate too. This continues, from molecule to molecule, passing the energy on as it goes. This is also why at a rock concert, or even being near a car with a large subwoofer, you can feel the bass notes vibrating inside you. The molecules of your body are vibrating, allowing you to physically feel the music. MUSEUM IN A BOX As with any energy transfer, each time a molecule vibrates or causes another molecule to vibrate, a little energy is lost along the way, which is why sound gets quieter with distance (Fig 1.) and why louder sounds, which cause the molecules to vibrate more, travel farther. -
The Mathematical Approach to the Sonic Barrier1
BULLETIN (New Series) OF THE AMERICAN MATHEMATICAL SOCIETY Volume 6, Number 2, March 1982 THE MATHEMATICAL APPROACH TO THE SONIC BARRIER1 BY CATHLEEN SYNGE MORAWETZ 1. Introduction. For my topic today I have chosen a subject connecting mathematics and aeronautical engineering. The histories of these two subjects are close. It might however appear to the layman that, back in the time of the first powered flight in 1903, aeronautical engineering had little to do with mathematics. The Wright brothers, despite the fact that they had no university education were well read and learned their art using wind tunnels but it is unlikely that they knew that airfoil theory was connected to the Riemann conformai mapping theorem. But it was also the time of Joukowski and later Prandtl who developed and understood that connection and put mathematics solidly behind the new engineering. Since that time each new generation has discovered new problems that are at the forefront of both fields. One such problem is flight near the speed of sound. This one in fact has puzzled more than one generation. Everyone knows that in popular parlance an aircraft has "crashed the sonic *or sound barrier" if it flies faster than sound travels; that is, if the speed of the craft q exceeds the speed of sound c or the Mach number, M = q/c > 1. In simple, if perhaps too graphic, terms this means that if you are in the line of flight the plane hits you before you hear it. But it is not my purpose to talk about flight at the speed of sound. -
Wrong Way Corrigan and Recent Developments in the Nonprofit Landscape: a Need for New Legal Approaches
Fordham Law Review Volume 76 Issue 2 Article 3 2007 Wrong Way Corrigan and Recent Developments in the Nonprofit Landscape: A Need for New Legal Approaches James J. Fishman Follow this and additional works at: https://ir.lawnet.fordham.edu/flr Part of the Law Commons Recommended Citation James J. Fishman, Wrong Way Corrigan and Recent Developments in the Nonprofit Landscape: A Need for New Legal Approaches, 76 Fordham L. Rev. 567 (2007). Available at: https://ir.lawnet.fordham.edu/flr/vol76/iss2/3 This Article is brought to you for free and open access by FLASH: The Fordham Law Archive of Scholarship and History. It has been accepted for inclusion in Fordham Law Review by an authorized editor of FLASH: The Fordham Law Archive of Scholarship and History. For more information, please contact [email protected]. Wrong Way Corrigan and Recent Developments in the Nonprofit Landscape: A Need for New Legal Approaches Cover Page Footnote Professor, Pace University School of Law. This article is available in Fordham Law Review: https://ir.lawnet.fordham.edu/flr/vol76/iss2/3 WRONG WAY CORRIGAN AND RECENT DEVELOPMENTS IN THE NONPROFIT LANDSCAPE: A NEED FOR NEW LEGAL APPROACHES James J. Fishman* You see things; and you say "Why?" But I dream things that never were; and I say "Why not?"1 INTRODUCTION In July 1938, an aviator, Douglas Corrigan, flew from Long Beach California to New York's Floyd Bennett Field in Brooklyn. His flight plan called for him to return to California. On July 17, Corrigan took off in thick fog, and headed east because airport officials had told him to lift off in any direction save west, as there were some buildings at the western edge of the field. -
Aircraft of Today. Aerospace Education I
DOCUMENT RESUME ED 068 287 SE 014 551 AUTHOR Sayler, D. S. TITLE Aircraft of Today. Aerospace EducationI. INSTITUTION Air Univ.,, Maxwell AFB, Ala. JuniorReserve Office Training Corps. SPONS AGENCY Department of Defense, Washington, D.C. PUB DATE 71 NOTE 179p. EDRS PRICE MF-$0.65 HC-$6.58 DESCRIPTORS *Aerospace Education; *Aerospace Technology; Instruction; National Defense; *PhysicalSciences; *Resource Materials; Supplementary Textbooks; *Textbooks ABSTRACT This textbook gives a brief idea aboutthe modern aircraft used in defense and forcommercial purposes. Aerospace technology in its present form has developedalong certain basic principles of aerodynamic forces. Differentparts in an airplane have different functions to balance theaircraft in air, provide a thrust, and control the general mechanisms.Profusely illustrated descriptions provide a picture of whatkinds of aircraft are used for cargo, passenger travel, bombing, and supersonicflights. Propulsion principles and descriptions of differentkinds of engines are quite helpful. At the end of each chapter,new terminology is listed. The book is not available on the market andis to be used only in the Air Force ROTC program. (PS) SC AEROSPACE EDUCATION I U S DEPARTMENT OF HEALTH. EDUCATION & WELFARE OFFICE OF EDUCATION THIS DOCUMENT HAS BEEN REPRO OUCH) EXACTLY AS RECEIVED FROM THE PERSON OR ORGANIZATION ORIG INATING IT POINTS OF VIEW OR OPIN 'IONS STATED 00 NOT NECESSARILY REPRESENT OFFICIAL OFFICE OF EOU CATION POSITION OR POLICY AIR FORCE JUNIOR ROTC MR,UNIVERS17/14AXWELL MR FORCEBASE, ALABAMA Aerospace Education I Aircraft of Today D. S. Sayler Academic Publications Division 3825th Support Group (Academic) AIR FORCE JUNIOR ROTC AIR UNIVERSITY MAXWELL AIR FORCE BASE, ALABAMA 2 1971 Thispublication has been reviewed and approvedby competent personnel of the preparing command in accordance with current directiveson doctrine, policy, essentiality, propriety, and quality. -
Postal Bulletin 22262 (7-2-09) Contents
Front Cover 2 postal bulletin 22262 (7-2-09) Contents Contents POLICIES, PROCEDURES, AND FORMS UPDATES Manuals PULL-OUT INFORMATION DMM Revision: Standard Mail Volume Incentive Fraud Program (aka Summer Sale) . 3 Withholding of Mail Orders . 27 DMM Revision: Arizona District ZIP Codes Realigned Invalid Express Mail Corporate Account Numbers . 29 to Include “851” 3-Digit Service Area . 4 Missing, Lost, or Stolen U.S. Money Order Forms . 31 DMM Revision: Confirmation Services/eVS Barcoded Missing, Lost, or Stolen Canadian Money Order Forms . 36 Label Precertification Program . 4 Verifying U.S. Postal Service Money Orders . 39 IMM Revision: Customs Label Requirements for Counterfeit Canadian Money Order Forms . 39 International Mail Items. 5 Toll-Free Number Available to Verify Canadian IMM Revision: Canadian Labeling Information Update . 6 Money Orders . 39 IMM Revision: Labeling Changes for International Priority Airmail and International Surface Air Lift Services . 6 Other Information Overseas Military/Diplomatic Mail . 41 Handbooks Handbook F-101 Revision: Handling Inactive Cash Retained Credits at POS Offices. 6 POSTAL BULLETIN 2009 SEMI-ANNUAL Publications INDEX . 63 Publication 431 Revision: Changes to Post Office Box Service and Caller Service Fee Groups . 9 ORGANIZATION INFORMATION Finance Reminder: Credit and Debit Card Receipt Retention and Disposal Procedures . 10 Equipment Maintenance Allowance Schedule for Rural Routes . 10 Intelligent Mail and Address Quality Post Office Changes . 13 Gulf Coast Lighthouses stamps Correction: Section Change for Confirmation Services/eVS Barcoded Label Precertification Program Article . 14 Mailing and Shipping Services Mail Alert . 15 Exception Extension for Priority Mail Commercial Pricing Postal Routing Barcode — Permit Imprint . 15 “Monumental Opportunity” Business Connect USPS National Emergency Hotline Contest — Quarter 4. -
Rudy Arnold Photo Collection
Rudy Arnold Photo Collection Kristine L. Kaske; revised 2008 by Melissa A. N. Keiser 2003 National Air and Space Museum Archives 14390 Air & Space Museum Parkway Chantilly, VA 20151 [email protected] https://airandspace.si.edu/archives Table of Contents Collection Overview ........................................................................................................ 1 Administrative Information .............................................................................................. 1 Scope and Contents........................................................................................................ 2 Arrangement..................................................................................................................... 3 Biographical / Historical.................................................................................................... 2 Names and Subjects ...................................................................................................... 3 Container Listing ............................................................................................................. 4 Series 1: Black and White Negatives....................................................................... 4 Series 2: Color Transparencies.............................................................................. 62 Series 3: Glass Plate Negatives............................................................................ 84 Series : Medium-Format Black-and-White and Color Film, circa 1950-1965.......... 93 -
Ping Pong Balls Break the Sound Barrier STEM Lesson Plan / Adaptable for Grades 7–12 Lesson Plan Developed by T
INSIDE SCIENCE TV: Ping Pong Balls Break The Sound Barrier STEM Lesson Plan / Adaptable for Grades 7–12 Lesson plan developed by T. Jensen for Inside Science and the American Institute of Physics About the Video (click here to see video) Purdue University students, led by their mechanical engineering technology professor, designed an hourglass-shaped nozzle like those found in the engine of F-16 fighter planes for their air-cannon. The cannon accelerates a ping-pong ball to supersonic speeds, propelling it with incredible momentum through wood, soda cans, and even denting steel. Related Concepts acceleration energy momentum aerodynamics force sound barrier air pressure linear motion speed continuity equation mass vacuum Bell Ringers Use video to explore students’ prior knowledge, preconceptions, and misconceptions. Have students write or use the prompts to promote critical thinking. Time Video content Students might… 0:00–0:05 Series opening 0:06–0:13 What can travel at Have students make written predictions about supersonic speed and what might travel at supersonic speed and can shatter plywood? blast through plywood. Predictions should be supported with physics concepts. (You can play the video at full screen without the label Ping Pong Balls Break The Sound Barrier showing by keeping your cursor out of the screen.) 0:14–0:25 Purdue mechanical Students might put on their engineering hats and engineering and make annotated drawings that depict how they technology students build would propel a ping-pong ball to supersonic an air-powered cannon. speeds. 0:26–0:32 Students determine how Have students outline the procedure they would fast the ping-pong ball is follow to determine how fast the ping-pong ball traveling and makes was going when it hit the metal grid. -
United Nations Postal Administration
.. UNITED NATIONS POSTAL ADMINISTRATION (~) Office of Geaeral Senices, United Nations, N. Y. ~ ~~ 10 January 1969 UNITED NATIONS TO ISSUE NE~I COMHEMORATIVE STft.. MP FOR UNITED. NATIONS I NSTITUTE FO}~ TRAINING . AND RESEARCH (UNITA...-q )_ The United Nations Postal Administration will i ssue a new stamp on 10 February 1969 to commemorate the United Hations Institute for Training and Research (UNITAR). One of the main functions of the Institute, wh i ch began operaticns early in 1965, is to train personnel, particularly from the developing countries, for service with national administratie ns or with the United Nations itself . UNITAR also conducts research on problems which concern the United Nations, such as the transfer of techn~logy to developing countries, the problems of certain small states and territories and the problem of migration of skilled personnel to affluent nations . The new stamp, in denominations of 6- cents (green, red, blue, purple, yellow and black) and 13-cents (purple, red, blue, yellow, black and grey) will bP printed in lithography by the Government Printing Bureau, Tokyo, Japan, j_n quantities of 2,100,000 and 2,200,000 respectively. It was designed by Olav S . Mathiesen (Denmark) and will measure 27 mm . horizontally x 33 mm . vertically, perforation to perforation (not 24 mm . x 29 r.~a . as previously announced on - -··· 7 2 December 1968) . Perforation 13-2· • Four marginal inscriptions wi ll appear on each sheet, two at the top and two at the bottom . They will consist of the United Nations seal with the text "UNITAR" in a semi-circle around the top of the seal with the year 11 1969 11 beneath it on the 6-cent sheet . -
Chapter Iv What Is the Thrust Ssc?
THRUST SSC ENGLISH 2 – CHAPTER IV WHAT IS THE THRUST SSC? British jet-propelled car Developed by Richard Noble and his 3 asisstants Holds the World Land Speed Record 15. October 1997 First vehicle to break sound barrier DETAILS 16,5 metres long, 3,7 metres high, weights nearly 10 tons Two Rolls Royce engines salvaged from a jet fighter Two engines have a combined power of 55,000 pounds of thrust (110,000 horsepower) Two front and two back wheels with no tyres (disks of forged aluminium) Uses parachutes for breaking SAFETY OF THE CAR There is no ejection system in the car or any other kind of safety mechanisms The emphasis was placed on keeping the car on the ground HOW? Hundreds of sensors to ensure the vehicle to maintain safe path Aerodynamic system is there to keep the vehicle on the ground WORLD LAND SPEED RECORD The record set on 15th October 1997 The record holder is ANDY GREEN (British Royal Air Force pilot) WORLD MOTOR SPORT COUNCIL’S STATEMENT ABOUT THE RECORD The World Motor Sport Council homologated the new world land speed records set by the team ThrustSSC of Richard Noble, driver Andy Green, on 15 October 1997 at Black Rock Desert, Nevada (USA). This is the first time in history that a land vehicle has exceeded the speed of sound. The new records are as follows: Flying mile 1227.985 km/h (763.035 mph) Flying kilometre 1223.657 km/h (760.343 mph) In setting the record, the sound barrier was broken in both the north and south runs. -
Stamp Album a COLLECTION of MINNESOTA PEOPLE, PLACES, and EVENTS
xMN History Text 55/3 rev.2 8/20/07 11:15 AM Page 106 St. Paul’s first post office, 1846, which sat on a counter in postmaster Henry Jackson’s general store MH 55-3 Fall 96.pdf 16 8/20/07 12:25:40 PM xMN History Text 55/3 rev.2 8/20/07 11:15 AM Page 107 Stamp Album A COLLECTION OF MINNESOTA PEOPLE, PLACES, AND EVENTS n “Winter Dreams,” F. Scott Fitzgerald I writes of a sad but successful man who “had gone away and could never go back any more.” If Fitzgerald could have returned to St. Paul in September of 1996, he would have found his home town eagerly celebrat- ing his one-hundredth birthday. A parade, tours, and a literature festival held in the recently renamed Fitzgerald Theater in the city’s downtown helped mark the event. Enduring long after the festivities are the bronze statue of the writer in Rice Park and a new 23-cent postage stamp. These are Moira F. Harris Dr. Harris began accumulating stamps as a child. During a decade of residence in the Washington, D.C., area, she often attended first-day ceremonies. Among her recent publications is an article on Curt Teich postcards of Minnesota in the Fall 1995 issue of Minnesota History. FALL 1996 107 MH 55-3 Fall 96.pdf 17 8/20/07 12:25:40 PM xMN History Text 55/3 rev.2 8/20/07 11:15 AM Page 108 significant tributes to an author who left home to be pictured on a stamp.