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Can Quiet, Efficient 'Space Elevators' Really Work?
space.com ^ | February 21, 2014 12:25 PM | Leonard David

Posted on 02/22/2014 8:13:46 PM PST by ckilmer

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To: ckilmer

I remember a study from many years ago that mentioned that one of the ‘side effects’ or products if you will from a space elevator would be enormous amounts of electricity. In fact that was mentioned as a hazard as a possible ‘burn through’ from electric arcing on the cables.

Harness that electricity to power the elevator and sell the excess for a profit.

For those interested the electricity was a produced by the cable necessarily passing through various layers of not only the atmosphere but through the ‘electrosphere’, Van Allen belts etc. There is a lot of actual and potential energy there.


81 posted on 02/23/2014 3:09:33 PM PST by The Working Man
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To: Alas Babylon!
However, payloads could detach at around 150 miles up and would be weightless.

Gravity doesn't fall off that fast. 150 miles up objects would weigh 93% of their sea level weight and would fall to Earth like a rock unless they were sped up to 17,000 mph after their exit from the elevator. That's going to take a rocket engine and fuel. An elevator ride doesn't lower the costs much of putting a mass into orbit.

82 posted on 02/23/2014 4:33:19 PM PST by Reeses
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