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Submission + - Glass Walkway over the Grand Canyon

hac writes: "Afraid of heights? In March 2007, you will be able to walk over the rim and into the Grand Canyon, with glass separating you from a 4000 foot fall.

"The Skywalk will jut out 70 feet (21 meters) from the canyon rim, allowing tourists to go for a stroll with nothing between their feet and the Colorado River — 4,000 feet (1,220 meters) below — except for four inches (ten centimeters) of glass. "
How long until someone sets a record for wireless transmission within the Canyon?"

Today's scientific question is: What in the world is electricity? And where does it go after it leaves the toaster? -- Dave Barry, "What is Electricity?"

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