Thursday, June 28, 2007

My Addiator


I bought one of these Faber Castell Addiators on eBay a few years ago because I was curious as to how they worked, and how useful they could be: They're very simple to use. But it's still quicker to use pencil and paper for addition and subtraction.

However, in combination with a slide rule, the addiator is useful. The results from calculations on the slide rule can be stored on the addiator for later use.

Video from rregister
Thanks Retro Thing
Categories:Gadgets Science

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