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Re: 7.1Hz, how the heck did Tesla succeed?



Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>

At 12:37 PM 7/16/2005, you wrote:
Original poster: "Bob (R.A.) Jones" <a1accounting@xxxxxxxxxxxxx>

Hi Jim,


> Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx> > family of them) argued for Prolate (pointy at the poles) in the late 1600s. > The French measured it in the mid 1700s. It's oblate. > Given it only about 27 miles higher at the equator that's spectacular for the 1700s Presumably they did it with a Theodolight, trig tables, some serious travel (for the time) and paperwork. When you think that a theodolight is not much more than a spirit level and a protractor its even more amazing.
Astronomy & celestial navigation techniques help a lot. But yes, it's very impressive.