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地球的形状多年来一直被认为是不同的概念,比如地球是平的概念,在地球上生活的人看来地球是平的,然而地球一度被认为是一个球体,这是地球的一个简单模型,但这并不能解释地球在赤道上的膨胀是由于地球自转产生的离心力造成的。然而,艾萨克·牛顿先生猜测地球是一个扁圆球体,一个在两极变平,在赤道上膨胀的形状,所以它在中间变大。他在大多数情况下是正确的,除了地球的地质、构造活动和潮汐膨胀也使它不能成为一个完美的球体。多年来,它的形状一直是一个有争议的问题,现代技术的发展为数据收集提供了新的和快速的方法,自从“人造卫星1号”发射以来,轨道数据被用来研究地球的椭圆度理论。现在在全球定位系统的帮助下,科学家们创造了一个名为“更多-格雷戈里”的模型
Earth's shape has been thought of as different concepts over years, such as the flat Earth concept, where Earth looks flat to people living on it, yet Earth has been thought of for a while as a sphere, which is a simple model of Earth, but however doesn't account for the geology and the fact that Earth bulges at the equator due to centrifugal force from its rotation.Yet Sir. Isaac Newton guessed Earth was an oblate spheroid, a figure that's flattened at the poles and bulged at the equator, so that its bigger in the middle.He was right for the most part, except that Earth's geology, tectonic activity and tidal bulges keep it from being a perfect spheroid as well.The shape has been a controversy for many years, modern technological developments have furnished new and rapid methods for data collection and since the launch of Sputnik 1, orbital data has been used to investigate the theory of Earth's ellipticity.Now with the help of GPS, scientists created a model called ... more - Gregory
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