Leonardo da Vinci’s Bicycle Becomes a Reality, Built From Old Notebook Sketches
SMRTR summary
A bicycle hidden in Leonardo da Vinci's notebooks, built entirely from 500-year-old ideas, actually rolls.
Andy George of the How To Make Everything channel spotted a bicycle sketch in da Vinci's Codex Atlanticus and decided to build one using mechanical concepts scattered throughout those pages. The result is a surprisingly functional machine, featuring a frame of rare spalted maple, steam-bent handlebars, hand-riveted chain links, and bronze sprockets cast in 3D-printed molds.
The braking system is pure da Vinci elegance: a steel spring band wraps around a rear drum, held open by a lever. Release it, and the wheel stops dead. No cables, no pads, just physics.
The bearings, inspired by da Vinci's friction-reduction sketches, spin with almost no drag. The chain drive, though, remains temperamental, jamming when tiny imperfections stack up.
It steers, it brakes, it rolls beautifully. Sustained speed? That's where centuries of engineering progress quietly make their case.
SMRTR provides this summary for quick context. The original article belongs to TechEBlog.
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