Category Archives: Nostalgia

Mini Museum: Slide Rule

Slide rules — analog mechanical calculators — helped build the modern world, three sig figs or so at a time. Continue reading

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Mini Museum: Player Piano Scroll

Player Piano scrolls — digital music is even older than digital computers! Continue reading

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Mini Museum: Morse Telegraph Relay

A Morse 4-C relay from circa 1900 is investigated and made to work again, driven by a modern microcontroller. Continue reading

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Hardware As Firmware

A 3D printer is used to teach a 1967 Sears sewing machine new patterns. Continue reading

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