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The Bedpan That Saved Your Life

The Bedpan That Saved Your Life

You know you are old when you see stuff you own in a museum display case. I own this exact model of cylindrical slide rule that’s on display in the History of Science Museum. I probably used it in my O-level maths exams, as it was faster than log tables. What’s more, it’s in the same case with bits of Babbage’s difference engine. The difference engine was intended to calculate mathematical tables, by performing iterative calculations and stopping when a…

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