Besides, the pitch of the gear teeth is too small to be ... connected to nested brass tubing and the mechanism is actuated with a hand crank. The six pages of forum discussion are worth combing ...

Consisting of a hand crank, many interlocking gears and ... the researchers also included an accurate model of the Mechanism's triangle-shaped gear teeth, which affect how well gears interlock ...

The simulations revealed that while the triangular shape of the gear teeth did not pose ... and possibly known planets of the time using a hand crank. The mechanism remained at the bottom of ...

A series of gears on two other axes convert the torque from the hand crank into the high speed necessary to get usable electricity out of the generator. The separate gear shafts were necessary to ...

The world's oldest astronomical calculator is famous for having intricate gear systems centuries ... may have been manipulated by a hand crank. The front of the mechanism had a clock-like face ...