 |
The blue gears (on a single axle) turn in a single direction
varying the red gear from clockwise to counterclockwise
depending on whether it is meshing at the time with the
inner or outer blue gear |
Five Hundred and Seven Mechanical Movements is a website reproducing each of the mechanical illustrations by Henry T. Brown, first published in 1868 and updated and republished many times since. The website authors are in the process of animating Brown's illustrations. The animations are fantastic; they make the function of the gears and other mechanical elements crystal clear (Brown's original drawings not so much, but that can be part of the fun). If you care about how things work or how to make things work or just the beauty of function, this site is a wonder.
Via
BoingBoing and
O'Reilly Radar (which, btw, is a great site).
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