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.

The shelves are two Trofast systems from IKEA:  http://www.ikea.com/us/en/catalog/categories/departments/childrens_ikea/

The shelves are two Trofast systems from IKEA: http://www.ikea.com/us/en/catalog/categories/departments/childrens_ikea/

1951 SLIDE RULE Print Advertisement DIETZGEN by phorgotten

1951 SLIDE RULE Print Advertisement • DIETZGEN Antique Slide Rules • 1950s Retro Advertising • Black & Orange Wall Decor • 50s Science Ad

Unless you are above a certain age, the only time you may have seen a slide rule (or a slip stick, as we sometimes called them) is in the movies. You might have missed it, but slide rules show up in T...

Slide Rules were the Original Personal Computers

Unless you are above a certain age, the only time you may have seen a slide rule (or a slip stick, as we sometimes called them) is in the movies. You might have missed it, but slide rules show up in T...

Diwa Slide Rule 601 Lear Aviation Products Leather Sleeve   Small white plastic pocket slide rule in a leather case,  Made in Denmark by Diwa

Vintage Diwa Slide Rule 601 Lear Aviation Products Leather Sleeve 1960's -70's Scientific Measurements Engineering Space Flight

Diwa Slide Rule 601 Lear Aviation Products Leather Sleeve Small white plastic pocket slide rule in a leather case, Made in Denmark by Diwa

Unless you are above a certain age, the only time you may have seen a slide rule (or a slip stick, as we sometimes called them) is in the movies. You might have missed it, but slide rules show up in T...

Slide Rules were the Original Personal Computers

Unless you are above a certain age, the only time you may have seen a slide rule (or a slip stick, as we sometimes called them) is in the movies. You might have missed it, but slide rules show up in T...

Instructables: How to use a slide rule

A More Complete Slide Rule Tutorial

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