BanjoPendulum.png
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| Description |
English:
Diagram showing operation of temperature compensated "gridiron" pendulum, invented in 1726 by British clockmaker John Harrison. The pendulum uses rods of a high thermal expansion metal, zinc
(yellow)
to compensate for the expansion of rods of a low thermal expansion metal, iron
(blue)
, so the overall pendulum doesn't change in length with temperature changes. Therefore the period of swing of the pendulum, and the rate of the clock, are constant with temperature.
|
| Date | |
| Source | Own work |
| Author | Leonard G. |
|
Permission
( Reusing this file ) |
Public Domain |
|
I, the copyright holder of this work, release this work into the
public domain
. This applies worldwide.
In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law. |