XD778899
幼苗
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这篇太经典了.你一定是刚刚做SSS吧...
我试着给你翻译了
Of course,the trip was not a perfect circle.As Kepler showed,the
当然,这段路程(轨道)也不是一个完美的圆.根据开普勒所说,地球
earth’s orbit is an ellipse,with the sun at one of the two focal
的轨道是一个以太阳为其中一个焦点的椭圆.他也证明出了
points.He also figured out the planet goes faster when it’s at
行星在离太阳很近的近日点飞行更快,在最远距离的远日点
perihelion,nearer the sun,than when it’s at aphelion,its furthest
飞行的更慢.这也就解释了除了地轴的倾斜度(而不是对太阳不同的距离)对季节的影响之外,夏季
distance.Which would explain why summer seems to zip by,except the
还会交替的原因.另外,每当地球公转一个周期时,需要365.25天
seasons are a function of the tilt of the earth’s axis,not its
different distances from the sun.And the earth rotated 365 and a
quarter times during its sweep around the sun.
1年前
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