Yesterday, my 12 year old nephew asked me a physics question after we watched a documentary about Einstein and relativity on the science channel. I know just enough about physics to be dangerous, and I can usually answer his questions but this time he had me stumped, and I couldn't find anything on the net. Here goes. Twin brothers Harry and Joe bid each other farewell. Joe gets on a spaceship and takes off on a long voyage at a significant fraction of the speed of light. Harry and Joe also built an audio/video communications device that utilizes quantum entanglement and "spooky action at a distance" to allow instantaneous 2 way communication at any distance with no delay. Would they be able to hold a real time conversation with one another. Additionally, if each had a web cams setup and pointed at a clock with a second hand, would the brother on earth see the second hand moving slower than his own? Any help or feedback would be appreciated..