Saturday, September 13, 2008

LHC: What happens if you fall into a Black Hole?

The world's largest scientific instrument, the Large Hadron Collider, was switched on in Switzerland on Wednesday. A few people worried that the LHC would cause the world to be swallowed up by a black hole, especially when it starts to operate at full force in the spring. What would happen if you fell into a black hole?

Your body would be shredded apart into the smallest possible pieces. Neil deGrasse Tyson, director of the Hayden Planetarium at the American Museum of Natural History, who wrote the definitive account Death by Black Hole, imagined the experience as "the most spectacular way to die in space."

A black hole is a place where the force of gravity is so powerful that you would need to be traveling at a speed faster than the speed of light to escape its pull. Since nothing in the universe is faster than the speed of light, nothing that falls into a black hole can ever escape. The border at which gravity becomes strong enough to create that phenomenon is known as the "event horizon"; it marks the outer boundary of the black hole. (Until the 1940s, some scientists believed that matter crusted up on the event horizon and didn't fall in.) More...

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