Answers to Physics Questions

Physics, cosmology, astrophysics, electricity, energy, forces, gravity, light and maths...

09 December 2007

Where do Magnets get the power to stick or repel?

02 December 2007

Could an astronaut skydive from space? Would a spacesuit handle the re-entry heat?

04 November 2007

If the speed of light is slower in glass than in air, where does the energy come from to speed it up as it exits the...