I saw MythBusters on the Discovery Channel for the first time last Saturday and again tonight. It has instantly become one of my favorite TV shows. Tonight they fired handguns and rifles, including a 50-caliber, into a pool to see how deep underwater you would have to be to avoid getting hurt (at 30 degrees, only about 3 feet).

They also found that a person cannot go 360 degrees on a chain swing under his or her own power. But it is possible—if you strap a rocket to the person (or dummy, in this case) at 40 degrees.

Sweeeeeet. All in the name of science…