weergaven
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ASMR 2.5 hrs Vintage Mechanical Calculator | Soft Spoken Math
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Unintentional ASMR 🖩 Mechanical Calculator Curta Type I (Soft Spoken, Clicking Sounds)
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Mechanical calculator Hamann 300 divides 1 by 3
11:41
Facit 1126 - Early Digital Calculator
15:45
A century of sounds of 20 different calculators from 1897 to nowadays, from mechanical to electronic
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Friden 1217 mechanical calculator
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An astonishing old calculator - Numberphile
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Dividing by zero on a soviet era calculator
