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41 " He walked straight out of college into the waiting arms of the Navy.

They gave him an intelligence test. The first question on the math part had to do with boats on a river: Port Smith is 100 miles upstream of Port Jones. The river flows at 5 miles per hour. The boat goes through water at 10 miles per hour. How long does it take to go from Port Smith to Port Jones? How long to come back?

Lawrence immediately saw that it was a trick question. You would have to be some kind of idiot to make the facile assumption that the current would add or subtract 5 miles per hour to or from the speed of the boat. Clearly, 5 miles per hour was nothing more than the average speed. The current would be faster in the middle of the river and slower at the banks. More complicated variations could be expected at bends in the river. Basically it was a question of hydrodynamics, which could be tackled using certain well-known systems of differential equations. Lawrence dove into the problem, rapidly (or so he thought) covering both sides of ten sheets of paper with calculations. Along the way, he realized that one of his assumptions, in combination with the simplified Navier Stokes equations, had led him into an exploration of a particularly interesting family of partial differential equations. Before he knew it, he had proved a new theorem. If that didn't prove his intelligence, what would?

Then the time bell rang and the papers were collected. Lawrence managed to hang onto his scratch paper. He took it back to his dorm, typed it up, and mailed it to one of the more approachable math professors at Princeton, who promptly arranged for it to be published in a Parisian mathematics journal.

Lawrence received two free, freshly printed copies of the journal a few months later, in San Diego, California, during mail call on board a large ship called the U.S.S. Nevada. The ship had a band, and the Navy had given Lawrence the job of playing the glockenspiel in it, because their testing procedures had proven that he was not intelligent enough to do anything else. "

Neal Stephenson , Cryptonomicon

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Created Saturday, November 5 at 4:05pm. See draft.
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The Year of “Alphabetization

In the Cuban post revolution era it was at “Che” Guevara who promoted educational and health reforms. 1961 became the “Year of Cuban Literacy” or the “Campaña Nacional de Alfabetización en Cuba,” meaning the “Year of Alphabetization in Cuba.” The illiteracy rate had increased throughout Cuba after the revolution. Fidel Castro in a speech told prospective literacy teachers, “You will teach, and you will learn,” meaning that this educational program would become a two-way street. Both public and private schools were closed two months earlier, for the summer than usual, so that both teachers and students could voluntarily participate in this special ambitious endeavor.

A newly uniformed army of young teachers went out into the countryside, to help educate those in need of literacy education. It was the first time that a sexually commingled group would spend the summer together, raising the anxiety of many that had only known a more Victorian lifestyle. For the first time boys and girls, just coming of age, would be sharing living conditions together. This tended to make young people more self-sufficient and thought to give them a better understanding of the Revolution.

It is estimated that a million Cubans took part in this educational program. Aside from the primary purpose of decreasing illiteracy, it gave the young people from urban areas an opportunity to see firsthand what conditions were like in the rural parts of Cuba. Since it was the government that provided books and supplies, as well as blankets, hammocks and uniforms, it is no surprise that the educational curriculum included the history of the Cuban Revolution, however it made Cuba the most literate countries in the world with a UNESCO literacy rate in 2015, of 99.7%.

By Captain Hank Bracker, author of the award winning book “The Exciting Story of Cuba,” Follow Captain Hank Bracker on Facebook, Goodreads, his Website account and Twitter. "

Hank Bracker