Don Bird has spent most of his working life in the Insurance Industry. University studies having been interrupted some years ago, he is mainly self educated in Science and Philosophy. Now of independent means he has returned to Academia and is presently an undergraduate student at Reading University UK reading Philosophy.

Published Answers

All answers by Don Bird published at PhysLink.com up to date are listed here:

1. If there was a hole through the earth would you be stopped in the middle due to gravity or would you fall straight through?
   
   
2. If I were in an elevator that was free falling, would it help at all if I perfectly timed a jump before it hit the ground floor? Would anything help the situation?
   
   
3. When was the first experiment done, or how old is experimental physics?