YES! This is beautiful. The wheels turning wheels explaining the
formulas; gear ratios and such - beautifully illustrated.* . . .
. * Of course the trouble with mathematical perfection; it only
LOOSELY _can_ have a basis in reality... but not without a whole
lot of trouble. Someone forgets to oil one of the wheels...
forklift backs into it and well, all those formulas go to
heck.[1]tumblr_nhr191UoYM1tlppcdo1_400
References
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1.
http://icopiedyou.com/wp-content/uploads/2015/09/tumblr_nhr191UoYM1tlppcdo1_400.gif