Linear form Updated 2025-07-16
The set of all linear forms over a vector space forms another vector space called the dual space.
Punched card Updated 2025-07-16
Served as both input, output and storage system in the eary days!
Video 1.
1964 IBM 029 Keypunch Card Punching Demonstration by CuriousMarc (2014)
Source.
Video 2.
Using Punch Cards by Bubbles Whiting (2016)
Source. Interview at the The Centre for Computing History.
Video 3.
Once Upon A Punched Card by IBM (1964)
Source. Goes on and on a bit too long. But cool still.
Backstory Updated 2025-07-16
Privacy Updated 2025-07-16
Tabla player Updated 2025-07-16
Two are riculously well known:
Verilog Updated 2025-07-16
Examples under verilog, more details at Verilator.
Synthetic geometry Updated 2025-07-16
A way to defined geometry without talking about coordinates, i.e. like Euclid's Elements, notably Euclid's postulates, as opposed to Descartes's Real coordinate space.

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