NO So that the more complete answer to the question is that no, we're never going to be able to observe that because of the uncertainty principle it's not possible to observe a velocity that's this slow for a macroscopic object.
所以这个问题的完整答案是,由于不确定性原理,我们不可能测量到这么慢的,宏观物体的速度,希望这个解释。
A 100% uncertainty in the position 15% gives rise to a 15% uncertainty in velocity.
从完全不确定的位置,到速度的不确定度为。
And they walk significantly slower toward the elevator, not knowing that they were primed with old words.
走向电梯的速度明显慢,虽然不知道自己被与“老“相关的字影射过。
That's another way of saying maintaining velocity if it's not acted upon by a force.
这就是不受外力作用时,速度保持不变的另一种说法
it says "The pickup truck slowed even more, as if it were reading the sign, Haze his empty horn.
就像看见了标牌一样,载货卡车进一步放慢了速度,又开始按那个,and,Haze,pounded,不出声的喇叭。
Others are a bit uncomfortable with that, They're going twice as fast.
其他人可能对这个结论不太满意,他们会觉得是这个速度的两倍
It won't be possible,because of the speed.
因为速度,这已不可能。
Tests show in the nineteenth century that people could type four or five times as fast as they could handwrite and there's no ambiguity because it's very clear what key was struck; whereas, handwritten--fast handwriting becomes impossible to read--or difficult.
通过测试显示,在19世纪,人们打字的速度是手写的4至5倍,而且也不存在字迹模糊的问题,因为键盘敲击出来的非常清晰;,而手写,尤其是快速手写根本无法阅读,或者说是很难阅读。
And so if I have concerns, it is sort of more indirect directions I think economic growth is doing all right, it's doing quite all right, 8% and if it's not 9%, if it's 8% ,7% range that's very handsome economic growth rate that should not be weigh upon anybody's mind as a matter of concern.
如果要说我关心什么,那就是隐藏的经济发展方向,我觉得印度的经济增长很不错,增长势头良好,即便不是9%,也是7%到,这种经济增长速度已经很厉害了,这种情况谁都不应该,表示担心。
And he couldn't get values of velocity in between certain steps.
他得不出两个点之间,位移的速度。
First, free velocity, constant velocity can be obtained for free without doing anything.
首先,速度是无偿的,恒定速度不需外力作用就能无偿获得
And since we are not expecting the mass of the particle to change, what we really are saying is the uncertainty in its velocity times the uncertainty in its position is greater than the ratio of the Planck constant divided by 2 pi.
因为我们不期望,粒子质量发生变化,我们说的是,它速度的不确定度,乘以它位置的不确定度,比普朗克常量,除以2除以圆周率要大。
The fact that you don't need a force for it to move forever at a given speed in a given direction, that's not obvious, because in daily life you don't see that.
对于物体不需要力的作用就能保持,确定的速度和方向持续运动这一事实,它并非显而易见,因为在日常生活中你看不到这种情况
And we turned to a discussion of the unpredictability of death, -- the fact that because we don't know-- we can't predict--how much more time we've got, we may, as it were, pace ourselves incorrectly.
我们转而讨论死亡的不可预测性,因为我们不知道-,我们不能预测--我们还有多少时间,我们可能,可以说是,为自己定错了前进的速度。
The Law of Inertia says that, "If a body has no forces acting on it, then it will remain at rest if it was at rest to begin with, or if it had a velocity to begin with, it will maintain that velocity."
惯性定律就是,"如果一个物体不受外力作用,那么静止的物体依然保持静止,如果物体有个初速度,那么就保持此速度不变"
Second formula tries to relate the final velocity of some time, t, to the initial velocity and the distance traveled with no reference to time.
第二个式子能把某段时间t的末速度,和初速度,经过的路程联系在一起,并且不引入时间
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