So if I strobe this apple while it was falling I would see the separation, when it strobes to increase with time, because the velocity goes up with time.
如果用频闪相机拍摄,苹果下落的过程,可以看到频闪的间隔,苹果的距离,随着时间不断变大,因为速度随着时间而变大。
See if you can boost your margin or increase your velocity — or, better yet, both.
看一下你是否能够提高利润率或者周转率——或者更好的是,两者都能得到提高。
The reward for building a successful space sail would be to increase the velocity of a spacecraft indefinitely without the need for propellant.
制造一个成功的空间帆带来的好处是可以在无需推进剂的情况下加速航天器。
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