3 ms·
Pendulum clock. http://electronics.howstuffworks.com/gadgets/clocks-watches/clock4.htm http://electronics.howstuffworks.com/gadgets/clocks-watches/... Was the b
by qbrass 12y ago
Pendulum clock.
http://electronics.howstuffworks.com/gadgets/clocks-watches/clock4.htm http://electronics.howstuffworks.com/gadgets/clocks-watches/...
Was the best illustration of a simple one.