Join 📚 Roger's Highlights

A batch of the best highlights from what roger's read, .

The universal soul is the alone creator of the useful and the beautiful, therefore to make anything useful or beautiful, the individual must be submitted to the universal mind. / Ralph Waldo Emerson /

Becoming the Instrument

Kenny Werner

Then there’s linear algebra, which forms the backbone of machine learning.

Why Machines Learn

Anil Ananthaswamy

Kelly was pleased with our progress. On the drawing boards was a design for the dart-shaped CL-400 that would fly at 100,000 feet at Mach 2.5 with a 3,000-mile range. The body was enormous, dwarfing any airplane on the drawing boards. On the playing field at Yankee Stadium, for example, the tail would cover home plate and the nose nudge the right-field foul pole, 296 feet away. It was more than twice the size of the B-52 bomber. And the reason the body was so gigantic was that it would carry a fuel load of liquid hydrogen weighing 162,850 pounds, making it the world’s largest thermos bottle. Flying at more than twice the speed of sound, the outer shell of the body would blaze from heat friction above 350 degrees F while the inside skin would hold the frosty fuel at temperatures of minus 400 F—an 800-degree temperature differential that represented an awesomely complicated thermodynamic problem. Undaunted, Kelly promised to have a prototype ready in eighteen months. The Air Force allocated $96 million, and we were off and running. The code name was Suntan, and it was classified above top secret. That was a first even for us. Only twenty-five people at the Skunk Works were cleared to work on it. And around the time that the U-2 overflights of Russia revealed that no bomber gap existed, the CIA dropped a bombshell by presenting Eisenhower with strong indications that the Russians were crashing development of a hydrogen-powered airplane of their own. They had released from a Siberian gulag a brilliant scientist named Pyotr Kapitsa, who had been arrested by Stalin in 1946 for refusing to work on their atomic bomb development. Kapitsa was Russia’s foremost expert on liquid hydrogen. He was now back in Moscow working on a top secret program. Allen Dulles and Dick Bissell agreed that it was likely the Russians were rushing development of a liquid hydrogen–propelled interceptor that could easily climb to the U-2’s heights and shoot it down. The CIA came to Kelly and asked his opinion. “They might be working their tails off to get this airplane into production,” he told Dulles, “but they won’t have a prototype finished in less than three years or even longer.”

Skunk Works

Ben R. Rich and Leo Janos

...catch up on these, and many more highlights