And people are making errors of this magnitude you can see the problem.

如果人们在重量估测上犯了错,问题便出现了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And so we adjust our minds to accommodate -because presumably we weren't imagining Satan to be that big -to accommodate this sense of Satan's tremendous physical magnitude.

我们调整了自己的思维来适应这个,-因为我们之前并未设想他的长矛有那么大,-来适应撒旦如此高大的想法。

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And so in theory after just 2 or 3 steps you were in order of magnitude farther along in this counting process than I would be because I'd still be on person literally 3 or 4.

因此从理论上说,经过这样短短的两三个步骤,你们就有了分级次序，比我数数快多了,因为我才数到第三四个人。

哈佛公开课 - 计算机科学课程节选

take the derivative of this, get the velocity vector and you notice his magnitude is a constant Whichever way you do it, you can then rewrite this as v square over r.

对这个式子求一次导,就能得到速度矢量,你会发现其模长是常数,不管用什么方法,加速度也可以写成 v^2 / r

耶鲁公开课 - 基础物理课程节选