There's a simple trick to hanging a wall clock: Use your ears, not your eyes, to level it.. The ticktock of the swinging pendulum should have a smooth, even rhythm to it and not be off-beat. If you ...
The 350-year-old mystery of why pendulum clocks hanging from the same wall synchronize over time may finally be solved, scientists say. In 1665, Dutch physicist Christiaan Huygens, inventor of the ...
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