Euler’s Disc Inspires Quantum Rollology Toy Breakthrough
San Diego engineers create a rotating toy disc that continues rolling as it slows, prompting H Keith Moffatt of Cambridge to model how contact speed seems to accelerate while the disc loses energy. He notes infinite rolling speed is prevented by slipping, while Bendik of San Diego and Tangent Toy promote the device investigated by Gavi Dallis and others.
MENTIONED IN THIS ARTICLE
Cain
San Diego
H. Keith Moff
Isaac Neveton Institute For Matheal Sciences
Cambridge
England
Moffant
Nature
Euler
Leonhard Euler
Moffan
Moffatt
Ia Die Ua de
Materal Sciences
Hughes Aircraft
Joseph Bendik
Bendik
Mottan
Tangent Toy
Gavi G. Dallis
Etementy
University of California At
Sviente
Harris
Atlantis mission delayed to at least May amid groundings
NASA grounded Atlantis' flight to the international space station last week due to high winds with the next launch window not before May 18. If delayed further the crew may fly to boost the station using shuttle fuel as Russia's module delay undermines station stability. controllers monitor options to replace a weather satellite launch.
MENTIONED IN THIS ARTICLE
Atlantis
International Space Station
NASA
Space Station
Russia
Discovery
Johnson Space Center
Great Celestial Alignment Of 2007 No Planetary Threats
Sky Watch notes the Sun Moon and five visible planets Mercury Venus Mars Jupiter and Saturn align within a 25.9 degree span on May 6. Experts say even at closest approach planetary tides would be far smaller than solar tides and the event should not affect Earth despite public fear.
MENTIONED IN THIS ARTICLE
Mercury
Venus
Mars
Jupiter
Saturn
NASA astronauts show persistence pays off in Atlantis crew
The Atlantis crew highlights stubborn perseverance as four of six Americans on the mission earned their slots after repeated applications. Jeffrey Williams and Susan Helms joined on first attempts, while Horowitz, Williams, Voss, and Habel exemplify long paths to selection amid intense competition for the Class of 2000.
MENTIONED IN THIS ARTICLE
Cape Canaveral
Fla
Atlantis
Scott Horowitz
NASA
Horowitz
Air Force
International Space Station
Astronaut Corps
Duane Ross
Astronaut Selection Office
Ross
Jeffrey Williams
Iim
Williams
James Voss
James Habel Jr
Taal
Susan Helms
Mary Ben Weber
Horewiz
Weber
Also Mentioned on This Page
Tangent Toy Company
Sausaito
Fox
Tangenttoy.com
Ciekhce
Asionated Press
Ntis
Scott Harowi
Sky Watch
Kate O'Conner
Estoy
Epprey
WILUA
The
Space Agency
Marcia Donn
Associated Press
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