Relocation always takes a toll on one's life. I am speaking from experience as this is my second move in 2 years. Worst of all, the 9 to 5 in Hong Kong is sometimes like the 9 to 10, especially when you work in a foreign company and expected to do early morning or evening meetings with North America. As a result, I have lost a lot of blogging time. Luckily, I recently managed to squeeze in time to watch the movie Thor , in 3D! I went to the movies not expecting any physics lessons, but Natalie Portman mentioned a number of astrophysics concepts, including the Einstein-Rosen Bridge that connected Asgard to Earth. In a layman's world, this bridge is more commonly known as a wormhole . A wormhole is essentially a warp in space-time, thus creating a shortcut for traversing between two physical points in space and time. Think of the analogy of drawing two points on a piece of paper placed on a table. When the paper is lying flat, the distance between the two po...