ntmokey writes: The guys over at Popular Mechanics managed to get their hands on a pair of custom-made light sabers that go for $500 apiece. They're powered by Class II lasers and built tough enough to stand up to some real abuse. Before you point out how outrageous $500 is (or whip out the credit card, if you're a Star Wars fan), check out the video of associate editor Erik Sofge dueling it up with a fan in the basement of their office building. Pretty epic stuff — brace yourself for the tragic ending.
mattnyc99 writes: Katrina was one thing, but sometimes we forget how much America has learned about preparing for disaster—both natural and man-made—from tragedies like the Mount St. Helens eruption that killed 57 people, the 1993 blizzards that left 2.5 million people without power, and even the time in 1974 when 148 tornadoes swept the country for 15 hours straight. Popular Mechanics rounds up the 10 worst of the last 101 years, and talks to experts about things like avoiding the next Katrina... in NYC.