The Pendulum Hearts 鐘擺的心






A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. When released, the restoring force combined with the pendulum’s mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. A pendulum swings with a specific period which depends (mainly) on its length.
People’s hearts swing like pendulums do. Each heart, hangs above the city with different string of lengths, swings with the direction and period of its own.Sometimes, two hearts just pass by, and leave each other with different speed. On other occasion, while one heart tries to move closer, the other just moves away by acceleration.Only in some very lucky moments, two hearts will meet. But don’t forget, if they don’t catch each other on time, they will leave each other with maximal acceleration.

The Valentine’s Day is coming. Will you do your best to catch that heart which is closest to yours?



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