When you close your eyes and think about the most important and dearest thing on this planet for you, what are you thinking about?
当你闭上眼睛思考,在这个星球上什么是你最重要的和最亲近的东西,你想到的是什么?
You just look at this for two or three minutes and it just gives you a sense of the scale of what we are doing on this planet.
你只需要浏览这些数字两三分钟,你就能够理解,我们生活在这个星球上,某种意义上的标准。
Ok, so that's an interesting law because it tells you, once you know what the orbit of the planet looks like, it tells you how fast it's going to move on that orbit.
这是个很有趣的定律,因为它告诉你们行星运动的轨迹,也告诉你们它在轨迹运动的速度快慢。
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