In spectroscopy, what does the term "wavenumber" represent?


What is the primary purpose of using a Faraday cage in laboratory experiments?


What role does simultaneity play in understanding events in different frames?


In special relativity, what happens during collisions at relativistic speeds?


How does special relativity explain why nothing can travel faster than light?


What does "rest mass" refer to?


What happens to an observer's perception of distance as they approach light speed?


How does special relativity affect our understanding of space and time?