How the Domino Effect Has Shaped History

When younger generations hear the word 'dominoes,' they usually associate it with the famous board game, while others–especially food lovers–might connect it with a delicious pizza. For those who are more politically aware, the word probably brings thoughts of the Cold War and the threat of the spread of communism. In… »12/23/13 5:15am12/23/13 5:15am

This Animated Video Simplifies Einstein's Complicated Twin Paradox

Einstein's Twin Paradox is super confusing for me, every time I think I fully understand it, I find more questions. The Twin Paradox is a thought experiment in special relativity when one twin travels to outer space while the other twin stays on Earth. When the space bound twin lands back on Earth, he'll find that… »2/20/11 4:00pm2/20/11 4:00pm