3 ms·
Neat. Also, all the copper coins (1, 2, and 5 cent) are 1.67 mm thick, so three stacked is half a centimeter to good accuracy.
by Luc 2y ago
Neat. Also, all the copper coins (1, 2, and 5 cent) are 1.67 mm thick, so three stacked is half a centimeter to good accuracy.