Answers to Physics Questions

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

08 April 2014

Is it okay to use a new phone straight from the box, or should you charge it up first?

26 March 2014

Is elevator style travel across Earth a possibility?

14 January 2014

Does the speed of light change as the universe expands and the distances it needs to travel across change?