Exploring Equameter Review Howto
Exploring Equameter Review Howto reveals several interesting facts.
- The Color Helm published by Fiatelle, Inc. in 1940. It's a cardboard volvelle wheel chart for choosing color combinations.
- The Torpedo Schnell Addiermaschine, made by Torpedo Werke in Frankfurt in the 1930s. This is episode 20 of my video series ...
- A Million Random Digits with 100000 normal deviates, published in 1955 by the RAND corporation. It was used for random ...
- The Gerbert abacus, designed by Gerbert d'Aurillac in the late 900s AD. It's a counting board with counters marked with arabic ...
- A sampling of graph papers included in the Keuffel & Esser company (K+E) catalog, 42nd edition, 1960. This is episode 51 of my ...
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The The Postagemiser, from the 1990s (and before), plus the "Postal Scale small and portable analog weight detection device". The Caliputer, from the 1960s. This is episode 36 of my video series about calculating devices. My own scan of the one-sheet ... Factor stencils based on a design from the 1920s by D. N. Lehmer. His will factor any number up to 3000000000000. Mine are ...
The Supermarket Quick Adder. Also maybe called the Pocket Counter. This is episode 14 of my video series about calculating ...
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