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4,009,765 results
The 1954 machine Hamann 300 (so called version A) - semi automatic " ratchet" calculator. Machines like this one used coupling ...
641,670 views
1 year ago
The Addifix/Addiator is a great little pocket calculator and is fun to use. All with no electricity! I may or may not want to start a small ...
459,698 views
3 years ago
This is how the Friden STW-10 handles 12345 ÷ 0. This calculator divides by trying to repeatedly subtract so it gets stuck in an ...
3,593,307 views
My mechanical calculator with a basic explanation for basic operations.
622,792 views
10 years ago
Multiplication and division on a Friden 1217 printing calculator. This machine was made in the late 1960's.
225,243 views
12 years ago
Why didn't I know about this type of calculator when I was learning my tables? Surely it would have helped! I make videos about ...
620,030 views
Yes, this 1956 Friden STW10 is the calculator machine on the desk of Katherine Johnson in the movie Hidden Figures. Let's try it ...
155,369 views
9 years ago
103,052 views
If you are up for renewal or you'd like to JOIN Supreme MATI Trader - Click here ...
81 views
2 days ago
Please, try a divide by zero! Pleeeeeease! What would happen? What if Katherine Johnson did that in the movie Hidden Figures ...
2,803,890 views
8 years ago
A look at the internals of the Brunsviga Model A and Marchant EEG9 mechanical calculators, as well as a brief description of how ...
29,740 views
6 years ago
In December 2014 I made six short videos. This is one of them. It features the Curta Model 1 Calculator.
1,767,938 views
The CURTA calculator is a marvel of engineering and a favorite of collectors. This video describes in detail how the CURTA Type I ...
605,060 views
A Monroe calculator, or adding machine, is one I've been seeking out since I got my Burroughs and Comptometer a few years ago ...
23,436 views
2 years ago
The Pascaline was the first successful mechanical calculator. It was developed in the 1640's by the mathematician Blaise Pascal.
531,072 views
Pocket calculators are almost extinct now that we carry around mini-computers, but what were accountants and engineers using ...
1,199,725 views
Shown here by Alex Bellos, author of Alex's Adventures in Numberland. More about our contributors, including Alex, ...
810,395 views
11 years ago
Automatic division on a Brunsviga 11S mechanical calculator. This machine was made in West Germany in the early 1960's.
10,309 views
The calculator is an Elektronika MK-61 This calculator uses reverse-polish notation, so instead of inputting 2 + 2 (Enter) = 4, you ...
1,423,787 views
I really, really, like this thing. It seems like I'm always saying this, but I didn't expect this thing's capabilities to be so deep.
76,319 views
4 years ago