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The Steve Jobs Nobody Knew

The Steve Jobs Nobody Knew

But, God, he could be a dick. Those who knew Jobs best and worked with him most closely – and I have talked to hundreds of them over the years – were always struck by his abrasive personality, his unapologetic brutality. He screamed, he cried, he stomped his feet. He had a cruelly casual way of driving employees to the breaking point and tossing them aside; few people ever wanted to work for him twice. When he fathered a daughter with his longtime girlfriend Chrisann Brennan at age 23, he not only denied his paternity, he famously trashed Brennan in public, telling Time in 1983 that “28 percent of the male population of the United States could be the father.” His kinder side would only emerge years later, after he had been kicked around, beaten up, humbled by life. He grew up poor, an adopted kid who felt cast aside by his birth parents, feeling scrawny and teased and out of place, and he remained deeply insecure for most of his life, certain that it would not last long.

Musical Reeds to measure RPM

This old tachometer uses music box type reeds to measure motor RPM without electricity. It's more useful than a digital Tach because it shows you resonant frequencies and can be used to check hammer and reciprocal speeds too.

This is a pretty neat device, after watching this video this weekend. They still make them but they are enormously expensive due to the limited demand and the cost of manufacture.

Technology Connections – Fans; High is next to Off on purpose

I've been woefully uneducated about the different types of electric motors and this got me reading and thinking about the different versions of this technology and how IGBTs and microprocessors using variable frequency drives have really changed things over the years.