Newspaper article The Christian Science Monitor

Taking Mt. Everest Down a Peg

Newspaper article The Christian Science Monitor

Taking Mt. Everest Down a Peg

Article excerpt

Old Mt. Everest Challenge

Although Mt. Everest, at 29,028 feet above sea level, is the highest mountain in the world, it is not the farthest from the center of the earth. The earth's bulge at the equator pushes Chimborazo in Ecuador, at 20,561 feet above sea level, farther. (How much?) Now suppose you run a water pipe from Everest to Chimborazo. Which way would the water flow?

Answer

Although it seems hard at first to determine water-level equilibrium on a bulging earth, the ocean does that for us!

Since Everest is higher above sea level, the water would flow from Everest to Chimborazo.

Jim Henry remarks that such a pipe along the ground would be more than 10,000 miles long and that the pressure at sea level would be more than 800 times atmospheric pressure.

Dave Rossum and Greg Sahagen also compute that Chimborazo is about 7,000 feet farther from the center of the earth than Everest.

New challenge

(John Dippel)

An ancient king requires that each of his 10 chieftains pay him tribute of 2,000 10-gram gold coins. …

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