Recent content by Threebrane

Thanks for all your insights! The reason behind that question was probably due to an incomplete understanding of the subject... my thought was; speed and mass affect time. The understanding i have is that the speed of the Earth combined with its mass (Speed x Mass=TD?) affects time here on...

Hi all, First post here. I have been debating with a colleague today about time dialation. I am certain that an astornaut in space will experience more time or age faster than people on Earth due to time dilation of a massive object. He is saying that he will come back younger. Whos right...