first-order and second-order motion signal 一阶运动和二阶运动信号
Turns out, some of these equations were very familiar: the law of conservation of momentum, and Newton's second law of motion.
其结果,其中一些方程非常眼熟,比如动量守恒定律和牛顿第二定律。
The motion of pushing the shutter often blurs the first frame but the second and third frames are much sharper.
按下快门往往会让第一张照片不够清晰,但是第二第三张就会好很多,要么就是其中一张幸运地是在没有抖动的情况下拍摄的。 拍摄移动的物体时,连拍能让你有机会拍出清晰的照片。
Readers could pore over academic papers about the physical properties of buckyballs, but a 16-second animation describes their motion more easily and arguably more thoroughly.
读者们可能在一些学术论文上读到过关于布基球物理特性的描绘,但都不及这16秒的动画来得轻松、真实和彻底。
You see an object in motion, you find a and you give a a certain numerical value, 10 meters per second squared.
你看到一个物体在运动,你会发现它的 a,然后给 a 赋值,10 米每秒平方
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