Wednesday, 29 July 2015

Scientists Figure Out Pendulum Clock Puzzle That Dates Back Centuries

After more than three centuries, scientists say they have figured out why pendulum clocks hung on the same wall tend to sync up - with one clock's pendulum swinging to the left just as the other swings right.

The strange phenomenon was first observed in 1665 by Dutch scientist Christiaan Huygens. No matter how the clocks started, he noticed that within about 30 minutes their pendulums wound up swinging in precisely opposite directions.

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