NPR: Charles Babbage’s ‘Difference Engine'; a computer designed in the steam age

“I wish to God these calculations had been executed by steam!”

Charles Babbage

Charles Babbage

– Charles Babbage, the 19th-century man who, with better luck and political skill, could’ve brought the information age to the Victorians.

This fascinating story from NPR (“A 19th-Century Mathematician Finally Proves Himself“):

Charles Babbage, the man whom many consider to be the father of modern computing, never got to complete any of his life’s work. The Victorian gentleman was a brilliant mathematician, but he wasn’t very good at politics and fundraising, so he never got the financial backing to finish any of his elaborate machine designs. For decades, even his fans weren’t certain whether his computing machines would have worked.

But Doron Swade, a former curator at the Science Museum in London, has proven that Babbage wasn’t just an eccentric dreamer. Using nothing but materials that would have been available to Babbage in the 1840s, Swade and a group of engineers successfully built Babbage’s Difference Engine — and a version is now on display at the Computer History Museum in Mountain View, Calif.

The Difference Engine fills half a gallery and stands taller than most men. It’s 5 tons of cast iron, steel and bronze woven together from 8,000 distinct parts. Though it looks like it could be a sculpture, the machine is essentially a giant calculator. Tim Robinson, a docent at the museum, says it’s “the first automatic calculating machine.”

This engine — made from 162-year-old designs — doesn’t have a power pack; it has a hand crank. Robinson works up a sweat as he turns it. “As long as you keep turning that crank, it will produce entirely new results,” he says.

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I'm a programmer journalist, currently teaching computational journalism at Stanford University. I'm trying to do my new blogging at blog.danwin.com.