Before electronic calculators were commonplace, if you needed a handheld calculation machine for multiplication, etc. you used a Curta.
See Numberphile cover one of the originals.
And last year Adam Savage bought a 3D printed replica, but at 3X size.
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mudshark: Nate's just being...Nate.
Zeke: It comes nateurally to him.
mudshark: I don't expect Nate to make sense, really -- it's just a bad idea.
Sa'ar Chasm on the 5M.net forum: Sit back, relax, and revel in the insanity.
Adam Savage: I reject your reality and substitute my own!
Hanlon's Razor: Never attribute to malice that which can be adequately explained by stupidity.
Crow T. Robot: Oh, stop pretending there's a plot. Don't cheapen yourself further.
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