(Roughly) Daily

“We know the past but cannot control it. We control the future but cannot know it.”*…

Readers will know of your correspondent’s fascination with– and admiration for– Claude Shannon

Within engineering and mathematics circles, Shannon is a revered figure. At 21 [in 1937], he published what’s been called the most important master’s thesis of all time, explaining how binary switches could do logic and laying the foundation for all future digital computers. At the age of 32, he published A Mathematical Theory of Communication, which Scientific American called “the Magna Carta of the information age.” Shannon’s masterwork invented the bit, or the objective measurement of information, and explained how digital codes could allow us to compress and send any message with perfect accuracy.

But Shannon wasn’t just a brilliant theoretical mind — he was a remarkably fun, practical, and inventive one as well. There are plenty of mathematicians and engineers who write great papers. There are fewer who, like Shannon, are also jugglers, unicyclists, gadgeteers, first-rate chess players, codebreakers, expert stock pickers, and amateur poets.

Shannon worked on the top-secret transatlantic phone line connecting FDR and Winston Churchill during World War II and co-built what was arguably the world’s first wearable computer. He learned to fly airplanes and played the jazz clarinet. He rigged up a false wall in his house that could rotate with the press of a button, and he once built a gadget whose only purpose when it was turned on was to open up, release a mechanical hand, and turn itself off. Oh, and he once had a photo spread in Vogue.

Think of him as a cross between Albert Einstein and the Dos Equis guy…

From Jimmy Soni (@jimmyasoni), co-author of A Mind At Play: How Claude Shannon Invented the Information Age: “11 Life Lessons From History’s Most Underrated Genius.”

* Claude Shannon


As we learn from the best, we might recall that it was on this date in 1946 that an early beneficiary of Shannon’s thinking, the ENIAC (Electronic Numerical Integrator And Computer), was first demonstrated in operation.  (It was announced to the public the following day.) The first general-purpose computer (Turing-complete, digital, and capable of being programmed and re-programmed to solve different problems), ENIAC was begun in 1943, as part of the U.S’s war effort (as a classified military project known as “Project PX”); it was conceived and designed by John Mauchly and Presper Eckert of the University of Pennsylvania, where it was built.  The finished machine, composed of 17,468 electronic vacuum tubes, 7,200 crystal diodes, 1,500 relays, 70,000 resistors, 10,000 capacitors and around 5 million hand-soldered joints, weighed more than 27 tons and occupied a 30 x 50 foot room– in its time the largest single electronic apparatus in the world.  ENIAC’s basic clock speed was 100,000 cycles per second. Today’s home computers have clock speeds of 1,000,000,000 cycles per second.


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