The mirrors could orbit—thousands of miles high—at the same speed as the earth turns on its axis.

这些镜子可以在几千英里的高空以地球绕地轴旋转的速度运行。

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The earth revolves on its axis.

地球环绕自身的轴心转动。

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Mars takes longer to revolve on its axis than the earth.

火星自转一周的时间比地球长。

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The Focault pendulum is one example where you can see that the Earth is rotating around its own axis.

傅科摆就是一个例子,通过观察它,你会发现地球在自转

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However, the Earth's axis is unstable and wobbles like a gyroscope over a period of 26, 000 years.

BBC: Pyramids lined up with the stars

Because Earth's axis is tilted, all parts eventually get some darkness.

NPR: Space Probe to End Moon Mission with a Bang

As a sword-wielding Sephiroth fell on Aerith like an avenging angel, I felt the Earth tilt on its axis.

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