What is relativity? Einstein's mind-bending theory explained
Friday, April 13, 2018
Everyone has heard of relativity, but how many of us can explain it to a friend? Here's a quick beginner's guide that I wrote for NBCnews.com.
Everyone has heard of relativity, but how many of us can explain it to a friend? Here's a quick beginner's guide that I wrote for NBCnews.com.