Items tagged with gravity

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Would an Antimatter Apple Fall Up?

Thursday, June 12th, 2008 - 14:30:53 - Ehud Rattner

New experiments are being proposed to test a big unknown in physics: how antimatter reacts to gravity. Physicists have studied antimatter, the mirror...

Silbervogel Gravity Car
Thursday, May 1st, 2008 - Noa Rotkop
Jakob Hirzel, a student of transportation design at the Pforzheim University of Applied Sciences in Germany, has designed a...

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Martian Dust Stroms Explained

Tuesday, April 29th, 2008 - 12:46:54 - Ehud Rattner

Sand dunes on Mars are monsters – around 10 times as big as the largest on Earth. That’s because low gravity gives Martian sand grains a lot more...

More Bizarre Space Speed Changes

Sunday, March 2nd, 2008 - 20:26:45 - Iddo Genuth

Mysteriously, five spacecraft that flew past the Earth have each displayed unexpected anomalies in their motions. These newfound enigmas join the...

The Elegant Universe
Friday, September 21st, 2007 - Iddo Genuth
The Elegant Universe – in 1999, American physicist Brian Greene published his award-winning book The Elegant Universe:...