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John Rennie earned this badge 31 times
may 20 at 19:06How large can planets or moons appear?
apr 23 at 16:59Why is matter drawn into a black hole not condensed into a single point within the singularity?
mar 30 at 20:30Does gravity slow the speed that light travels?
mar 28 at 1:59How can something happen when time does not exist?
mar 26 at 7:48Why is carbon dating limit only 40,000 years?
mar 23 at 11:49Speed of the Moon
mar 4 at 15:19Why cannot we store light in form of light?
feb 10 at 6:23Is time dilation an illusion?
jan 31 at 18:18Could there be a star orbiting around a planet?
jan 21 at 18:00How can two seas not mix?
jan 21 at 7:28How does the Higgs Boson gain mass itself?
dec 8 at 13:07What's the difference between space and time?
nov 30 at 18:54Why does pizza cheese seem hotter than the crust?
nov 3 at 1:26What is the difference between weight and mass?
oct 17 at 17:17Why less temperature at high altitude
oct 7 at 22:51Energy in bolognese reduction - lid on or off?
sep 20 at 4:22Why doesn't a fly fall off the wall?
jul 20 at 11:26Why does laser light not affect glowing materials?
jul 3 at 19:00Higgs Boson mass in Electron volts?
jun 21 '12 at 9:46Why wet is dark?
jun 20 '12 at 3:50Why can't a rope be pulled completely straight?
jun 3 '12 at 14:07The temperature in space
may 15 '12 at 17:53Why is a black hole black?
may 12 '12 at 15:42Would a sneeze by a cosmonaut in a spacesuit affect his movement?
apr 12 '12 at 2:12If I take a bottle of air into space, and open it, where does it go?