The Physics of Clockwork Mechanism



Winding a spring: KE --> PE; When triggered, PE --> KE as spring winds out
There are also varying cog sizes to take advantage of the different accelerations produced by varying sizes of cogs' radii.

Source: Figure from page 31 of Old Clocks.

Spring force is calculated so that the energy stored in it is sufficient enough for the automaton to run through its full “program”.
power curve of a good spring
Source: figure from page 8 of Modern Clocks

The basic principles of automata are based on basic clockwork, with the majority of them powered like old-fashioned clock movement:
with a spring which is wound by hand.






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