視頻内容：
What Would Happen if the Earth Stopped Spinning?
如果地球停止自轉會發生什麽？
Have you ever wondered what would happen if the Earth stopped
spinning?
你有想過如果地球停止自轉會發生什麽事？
If the Earth stopped spinning suddenly.
如果地球突然停止自轉。
The earth spins at a speed of 1050 miles per hour. Our atmosphere also
move along with it at a constant speed.
地球以每小時1050英里自轉。我們的大氣也以恆定的速度與其一起移動。
If the Earth suddenly stopped rotating, the atmosphere would still
continue moving 1050 miles per hour, and anything not attached to bedrock
would be ripped off the surface of the planet.
如果地球突然停止轉動，大氣層仍繼續以每小時1050英里的速度移動，任何不附著在基岩上的東西都會從地球表面剝離。
This means rocks, trees, buildings, animals, and so on, would be swept
away into the atmosphere.
這意味著岩石，樹木，建築物，動物等將被捲入大氣中。
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Many scientists believe that the magnetic field of the earth is
influenced by its rotation.
許多科學家認爲地球的磁場受其自轉的影響。
If the earth stopped rotating, the magnetic field would not be
regenerated.
如果地球停止自轉，磁場將不會重新產生。
So, we would no longer be protected from high energy particles like the
radioactive rays of the sun.
因此，我們將暴露在太陽的高能粒子和輻射。
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The earth’s centrifugal force responsible for its tidal bulges around the
equator.
自轉的離心力讓地球形成橢球體，海洋也因此在赤道處受到限制。
So if the Earth stopped spinning, this collected water would spread
across the poles where the gravitational force is the strongest.
因此，如果地球停止自轉，這些聚集的水就會擴散到引力最强的兩極。
This can cause massive waves of tsunami.
這會導致巨大的海嘯。
And will leave behind a gigantic dried-up supercontinent in the middle of
our planet.
並將在我們星球的中央留下一個巨大的干涸超大陸。
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Once the Earth doesn’t spin on its own axis, a day lasts as long as a
year.
一旦地球不繞地軸自轉，一天就會長達一年。
Since the Earth still rotates around the sun, each day and night would
last six months.
由於地球任然環繞太陽旋轉，所以每天的白天和黑夜將持續六個月。
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Now we know how important it is that our Earth spins.
現在我們知道了地球自轉的重要性。
Earth's spin 地球自轉
is the rotation of planet Earth around its own axis.
就是地球繞著自己的軸旋轉。
An atmosphere 大氣
is a layer of gas or layers of gases that envelope a planet.
是一層或多層包裹行星的氣體。
High energy particles 太陽高能粒子
Solar energetic particles (SEP) are high-energy particles coming from the Sun. They are of particular interest and importance because they can endanger life in outer space (especially particles above 40 MeV).
SEP是來自太陽的高能粒子。人们对它们特别重视和感兴趣，因为他们会危及在外太空的生命（特别是40MeV的粒子）
Radioactive rays of the sun 太陽的放射綫
Exposure to very high levels of radiation, can cause acute health effects such as skin burns and acute radiation syndrome.
暴露於非常高水平的輻射下會導致嚴重的健康影響，例如皮膚灼傷和急性輻射綜合症。
Tsunami 海嘯
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea.
海嘯是由海底地震或火山爆發引起的巨浪。
Supercontinent 超大陸
Supercontinents are large continents that include most or all of the existing continents.
超大陸是包括大部分或所有現有大陸的大型大陸。
Gravitational force 地心引力
gravity is the natural force that causes things to fall toward the earth.
地心引力是使物體墜向地球的自然力量。
Centrifugal force 離心力
is the force that makes objects move outward when they are spinning around something or travelling in a curve.
當物體作圓周運動時，向心加速度會在物體的坐標系產生如同力一般的效果，類似於有一股力作用在離心方向。
Equatorial bulge 赤道隆起
The increased equatorial diameter of a rapidly rotating planet, caused by centrifugal force.
當地球快速自轉由離心力所影響的赤道直徑增大。
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