No two of them ever pulled at the same time in the same direction.
VOA: special.2009.11.26
But I know when I multiply a vector by a number, I get a vector in the same direction.
但是我所知道的是当矢量乘以一个常数,我会得到一个同方向的矢量
Another Florentine, Machiavelli, moved further in the same direction.
另一位来自佛罗伦萨的思想家马基雅弗利,更加深入的研究了这个问题
It's just really the same argument coming in the other direction.
和刚才原理是相同的,就是方向相反
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