Tuesday, August 31, 2004
Coming soon - Joseph Micallef @ Intercontinental Hotel
Well, anyone who wants to see me/listen to me play can visit the Intercontinental Hotel on Wednesdays as from next month (September) but I dot know the exact date when we start. I will post it here when I have it.
Hope to cya there.
![]() Relativistic snapshot (Difficulty: 3 of 5) ![]() The Theory of Relativity is not required to solve this problem. The Lightway Express boasts half the speed of light. According to the advertisements, this relativistic speed literally shortens long trips. This is true. At one point, the train goes through a tunnel of about 111.8 km, but from the train's point of view, it is exactly 100 km long. As a curious tourist, I resolved to experience relativistic speeds, and furthermore, bring home memories in photo form. So while I was riding the Lightway Express, I pointed my camera out a window, and took a picture of the entire 100 km tunnel. Later, when I examined my excellently timed photo, I was disappointed to find that the picture showed a tunnel that was much longer than 100 km.
How long is the tunnel in my photo, and why is it longer than I expected? Was I looking out the front or the back window of the train? |