We have a rather simple one this week, if somewhat embarrassing. (All of these are embarrassing.) How does a nuclear bomb work? Much like derivatives, I've read some on this and I have a rather basic understanding. I understand that this about splitting atoms. But even after reading a really great biography of Oppenheimer, I don't have a real grasp of how a nuclear bomb actually works. More importantly, and more relevant to today, I have little understanding of why it's difficult to make a bomb. I don't really get the relevance of yellow-cake, or why uranium is important, or why you can tell by looking at a few rods that a country is pursuing a nuclear bomb.
Honeybees contribute more than $15 billion to the U.S. economy. A short documentary considers how desperate beekeepers are trying to keep their hives alive.