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How Antiques Work
entertainment.howstuffworks.com/arts/artwork/antique.htm
Antiques are defined by being at least 100 years old, but there are many more things to look at. Find out what to look for in antiques.
How Nuclear Bombs Work
science.howstuffworks.com/nuclear-bomb.htm
Nine countries hold the 13,000 nuclear weapons in the global stockpile. That's less than during the Cold War but it doesn't change the fact that these bombs are still a threat to global humanity. So how do they work and are we close to nuclear war?