Why does wearing wellies result in feeling pressure in a puddle, when going barefoot...
Answers to Physics Questions
Physics, cosmology, astrophysics, electricity, energy, forces, gravity, light and maths...
03 October 2010
03 October 2010
How can something appear to roll uphill?
25 July 2010
How much gas would a 10 stone human have to expel (and with what force) in order to lift themselves 1 inch off the...