Physics Puzzles: Mini Puzzles - Birds, Planes and Shadows
A few mini-puzzles to keep you busy until I can come up with a suitable “big” question.
A bird sits in a cage. The bird weights 500 grams and the cage weights 1 kg. The cage is made out of bars. When the bird is perched on a rod connected to the cage, the entire deal […]
Popular Science has been Replaced by Spiritualism
“. . . String theory has to confront this same problem. We have to curl up these unwanted higher dimensions into a tiny ball (a process called compactification). According to string theory, the universe was originally ten-dimensional, with all the forces unified by the string. However, ten-dimensional hyperspace was unstable, and six of the ten […]
Math puzzle: can you deduce the number of kids?
Okay, I’m back! I’ll admit I’ve been away for a while, and big things have been under way, namely my search for a post-graduate position (which I’m not sure anymore that I want to pursue). To make it up to you, I’ve got a pretty amusing math riddle for you this time. Hang on, though, […]