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广义相对论影响气候(vs牛顿力学)

这可能听起来像一个愚蠢的问题,但在这里。

早期的广义相对论的伟大成就之一是之间的差异来解释prehilion水星之前预测的牛顿力学和实际测量的结果。

我想知道这种效应可能对地球的气候产生任何影响体验。

回答

我看不出这一点,所以我就把它添加。在非常高的重力情况下轨道能量可以输给了“相对论”或者更具体地说,重力波。太阳的引力的主要相对论效应对水星进动,增加@CamiloRada指出,(看到更多细节)[1]。第二个相对论效应是轨道衰变或螺旋。这是(紧绕中,可以观察到中子星)[2]或黑洞。普通恒星周围的影响将是小,但不为零。这篇文章给了一些数字地球上这种效果)[3]。>引力辐射非常微妙和疲软的影响。>地球,太阳轨道,失去能量由于辐射>和螺旋向内。但这需要10 ^ 150年>发生这一过程。 That's a preposterously long period of time. Mercury would certainly be effected significantly more than Earth, (I can't do the math, maybe someone here will step up), but even at mercury distance the energy loss to gravity waves and spiraling-in would be slow to the point of irrelevance compared to other effects. Our sun, for example, grows larger and brighter over it's lifetime. Planets atmosphere's change, either stripped off or in the case of Earth, affected by photosynthesis and other processes, and the Sun loses mass over it's lifetime, which causes the planets, on average to move outwards, though inward migration is also thought to be possible and the planets can affect each other's orbits. These changes to climate are all likely to be significantly greater than relativistic spiraling-in. For maximum "spiral-in" effect, you'd probably want a small star and a planet with a very tight orbit of just days, but even that would likely be too small to have significant effects and a planet that orbited faster than it's star rotates would likely experience some tidal forces drawing it inwards. The tidal drawing-in would likely be far greater. It's hard to imagine a situation where the relativistic spiraling-in would have much effect between a planet and star. Now a planet in a super-tight orbit around a white-dwarf star . . . maybe, but the planet would likely get torn apart inside the Roche limit long before you got it close enough for any measurably interesting relativistic spiraling-in. - - - A word on precession, precession affects the Earth's climate because the Earth has a land dominant hemisphere and a water dominant hemisphere. Precession also works with the seasons leading to warmer or colder winters or summers. If there's low axial tilt, then precession won't have much effect on a planet's climate. Mercury has minimal axial tilt and no significant variation between it's two hemispheres, so it's unlikely that Mercury's precession changes it's climate much. Certainly not like the effect it has on Earth, such as turning ice ages on or off. Precession is also mostly Newtonian. Relativity just adds a percentage point or two to the rate of precession in the case of Mercury. [1]: https://physics.stackexchange.com/questions/26408/what-did-general-relativity-clarify-about-mercury [2]: https://www.forbes.com/sites/chadorzel/2015/07/22/three-experiments-that-show-relativity-is-real/2/#72c35a8443a9 [3]: https://www.forbes.com/sites/startswithabang/2016/12/27/gravitational-waves-from-discovery-of-the-year-to-science-of-the-century/#6ee4dfe5087f [4]: https://en.wikipedia.org/wiki/Yarkovsky_effect

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