4 ms·

OK, so I'm wondering how fast would the quarter have to travel to actually shrink to the size of a dime, based on special relativity?

• deleted 17y ago
  [deleted]
• kragen 17y ago
  The FitzGerald contraction would only shrink it in one dimension.
  • Leon 17y ago
    What would happen if the quarter was rotated on its disk at relativistic speeds?
    • Leon 17y ago
      http://math.ucr.edu/home/baez/physics/Relativity/SR/rigid_disk.html http://math.ucr.edu/home/baez/physics/Relativity/SR/rigid_di... http://en.wikipedia.org/wiki/Ehrenfest_paradox http://en.wikipedia.org/wiki/Ehrenfest_paradox Which is the best I could find for the question of shortening a quarter to the size of a dime using relativity.
    • TrevorJ 17y ago
      The best "What if?"s always come from science geeks, I swear.