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Wed, Jan.21.2004:12:12 AM

MythBusters: Third Rail

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This was an old one, but it had one interesting segment: peeing on the third rail. Adam cast a mannequin out of the ballistics gel they always break out and gave it a bladder full of urine. He also measured the rate of his own urination in order to choose an appropriate tube to create the urine stream.

They then charged up a third rail and set the urine stream loose with the dramatic result of... drum beat ... absolutely nothing. Turns out that the urine stream breaks up too much by the time it reaches the rail that the charge cannot follow the urine upstream. They tried increasing the stream size, and still nothing. In the end, they showed that you can get electricity to travel up the urine, but only if you were really close to the rail.

So kids, when you pee on the third rail, make sure you don't kneel down next to the rail.


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