Answers to Physics Questions

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

10 October 2004

I'd like to know why the sky is blue normally, but red at sunset?

10 October 2004

If your eyes respond to light, then how can you see black?

21 March 2003

Why do my Dog's Eyes Shine When I Point a Light at Him?

19 March 2003

Where does the rainbow end?

18 March 2003

How do we know the big bang happened if there was no-one there to see it?

07 July 2002

Why can birds sit on a power line and not be electrocuted?