Weightlessness
hideWeightlessness is a phenomenon experienced by people during free-fall. Although the term zero gravity is often used as a synonym, weightlessness in orbit is not the result of the force of gravity being eliminated or even significantly reduced (in fact, the force of the Earth's gravity at an altitude of 100 km is only 3% less than at the Earth’s surface). Weightlessness typically occurs when an object or person is falling freely, in orbit, in deep space (far from a planet, star, or other massive body), in an airplane following a particular parabolic flight path (e.g., the “Vomit Comet”), or in one of several other more unusual situations.
For more information about Weightlessness, read the full article at
Wikipedia.
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News tagged with zero gravity
Students demonstrate flux pinning in low gravity
Oct 27, 2009 |
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(PhysOrg.com) -- A team of Cornell researchers recently tested their work on the mysterious physical phenomenon of flux pinning aboard a near-zero gravity aircraft.
Circus tycoon clowns around aboard space station
Space & Earth / Space Exploration
Oct 02, 2009 |
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(AP) -- A Canadian circus billionaire boarded the International Space Station on Friday after a smooth ride up from Earth, and promptly played the entertainer by donning a red clown nose for a camera.
Fluid Dynamics Research to Make Peeing in Space More Comfortable and Sanitary (w/Video)
Jun 02, 2009 |
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(PhysOrg.com) -- Engineering students at UC San Diego are studying the fluid dynamics of water in order to build a more comfortable and sanitary urine collection device for space travel.
Atlantis astronauts who fixed Hubble earn day off
Space & Earth / Space Exploration
May 20, 2009 |
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(AP) -- After five grueling spacewalks to fix the Hubble Space Telescope, the crew of the space shuttle Atlantis gets a day off.
Astronauts need more intense workouts to maintain muscle fitness in space
Apr 02, 2009 |
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A new study in the The Journal of Applied Physiology, suggests that astronauts need to modify their workouts to avoid extensive muscle loss during missions onboard the International Space Station (ISS).
No sweat: Shuttle's exercise gear on the fritz
Space & Earth / Space Exploration
Mar 17, 2009 |
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Space junk from a Soviet satellite no longer poses a threat to Discovery shuttle, but astronauts face a vexing new problem: the spacecraft's exercise equipment is on the fritz, NASA said Monday.
Japan astronaut to try flying carpet in space lab: official
Space & Earth / Space Exploration
Mar 05, 2009 |
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A Japanese astronaut going to space this month will try to fly on a carpet, use eyedrops in zero gravity and meet a series of other off-beat challenges, a space agency official said Thursday.
