Four printers using differents technologies from 1880 to 1976. Each printer produces just one colour and is in chain with another one to get together … [Read more...]
Visualizing sound waves
Update: Mauro made a similar experiment with a suspended beam, obtaining one-dimensional patterns. "Chladni Patterns are created by the sand that … [Read more...]
Wonders of Industries
"Les merveilles de l'industrie, ou description des principales industries modernes", by Louis Figuier (1873-1877). You can find the 4 volumes online, … [Read more...]
Fastener type chart, on Bolt Depot
Bolt Depot's nice "fastener type chart". Printable version here. Via: BoingBoing and Make … [Read more...]
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