So let's first go to the rod, then, and make a comparison between the rod and the pendulum.
第一个用杆子，我们在杆子，和摆之间做个比较。
When we make the rod shorter, the pendulum vibrates faster.
杆越长，摆摆动的速度越慢。
When we make the rod shorter, the pendulum vibrates faster.
庞大的桥面躯体和吊杆来回地摆动。
Gravitational capture, rod-pendulum, lever, motorcycle lift-off.
重力俘获。球摆，杠杆，离地时的摩托车。
Gravitational capture, rod-pendulum, lever, motorcycle lift-off.
重力俘获。球摆，杠杆，离地时的摩托车。
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