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Thobani Mabizela

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Gottfried Wilhelm Leibniz

Died 14 Nov 1716 at age 70 (born 1 Jul 1646). German philosopher, mathematician and political adviser, important both as a metaphysician and as a logician, and also distinguished for his independent invention of the differential and integral calculus. Through meeting with such scholars as Christiaan Huygens in Paris and with members of the Royal Society, including Robert Boyle, during two trips to London in 1673 and 1676, Leibniz was introduced to the outstanding problems challenging the mathematicians and physicists of Europe. Leibniz's independently discovered differential and integral calculus (published 1684), but became involved in a bitter priority dispute with Isaac Newton, whose ideas on the calculus were developed earlier (1665), but published later (1687).

A Texan farmer goes to Austral...

A Texan farmer goes to Australia for a vacation.
There he meets an Aussie farmer and gets talking.
The Aussie shows off his big wheat field and the Texan says, "Oh! We have wheat fields that are at least twice as large."
Then they walk around the ranch a little, and the Aussie shows off his herd of cattle. The Texan immediately says, "We have longhorns that are at least twice as large as your cows."
The conversation has, meanwhile, almost died when the Texan sees a herd of kangaroos hopping through the field. He asks, "And what are those?"
The Aussie replies with an incredulous look, "Don't you have any grasshoppers in Texas?"
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