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This was our calculator! Amazingly, you could get really good at making complicated calculations quickly. You just had to keep track of your exponents. They were based on logarithms, so there were lots of options.

Modern Antiques That Today’s Kids Probably Have Never Used

This was our calculator! Amazingly, you could get really good at making complicated calculations quickly. You just had to keep track of your exponents. They were based on logarithms, so there were lots of options.

A tribute to the slide rule! http://bigberthasadventures.com/2013/10/15/random-object-wednesday-a-tribute-to-the-slide-rule/

A tribute to the slide rule! http://bigberthasadventures.com/2013/10/15/random-object-wednesday-a-tribute-to-the-slide-rule/

Fowler's Universal Calculator, a circular slide rule produced in Manchester from the end of the 19th century into the second half of the 20th. (Abridged from web site)

Fowler's Universal Calculator, a circular slide rule produced in Manchester from the end of the 19th century into the second half of the 20th. (Abridged from web site)

The Slide Rule: A Computing Device That Put A Man On The Moon

The Slide Rule: A Computing Device That Put A Man On The Moon

Before the smartphone, the laptop and the pocket calculator, there was a powerful mechanical computer. Our new series, Tools of the Trade, begins with a look at the slide rule.

27 MEMES FOR TODAY #21

27 MEMES FOR TODAY #21

The Marauders

The Marauders

Fowler\'s Circular Slide Rule Calculator Type 'Long Scale' - Gilai ...

Fowler\'s Circular Slide Rule Calculator Type 'Long Scale' - Gilai ...

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