If the universal speed limit is 299,792,458m/s. And you had a rod several light-years long, and began spinning while holding the rod, wouldn’t the other end of the rod surpass the limits?

Question

If the universal speed limit is 299,792,458m/s. And you had a rod several light-years long, and began spinning while holding the rod, wouldn’t the other end of the rod surpass the limits?

In: Physics

Answer 1

Stephen Hawking explains this brilliantly here through the concept of a near light speed train:

The speed of light is a cosmic speed limit. You simply cannot break it. Time actually dilates around these speeds to prevent it.