It was impossible-- doctors and scientists showed, runners, athletes, the top-ones in the world proved that the doctors were right.
那是不可能的,医生和科学家证明了,跑手,运动员,世上顶尖选手证明了医生们是对的。
when other people that might not have been involved with the sport wouldn't really know what to do.
而或许没参与过这项运动的人连做什么都不知道。
That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.
这就解释了为什么我们不担心,原子核运动起来,因为原子核和电子的质量比约为2000:
And that's why, in many ways, largely, not completely but largely more of into the self-health movement.
所以在很多方面,大部分,不完全但大部分成为了自助运动。
And this was largely a secular, a less religious movement that focused on the Palestinian identity, nationalizing the conflict, making it national.
这是个非宗教,宗教因素不那么重要的运动,主要集中在于寻求巴勒斯坦身份,把冲突推向国家性质。
The reason it looks like a tautology, because you look around, nothing seems to have its velocity forever.
其原因听起来像是绕圈子,因为你看看四周,似乎一切都不可能永远运动下去
Even if you're not in a team, you can do a club sport,
即使你不参加运动队,你可以加入俱乐部运动,
Conservativism--deep organic forms of Conservativism is not antithetical to the Enlightenment, at least not entirely.
保守主义者是保守主义的有机形式,和启蒙运动并不对立,至少不完全是
But like, I don't know, like how people play sports,
但是,我不知道,就像人们做运动,
No, I don't have enough time to exercise.
我一向来都不运动,因为我没有足够的时间。
Nowadays, if you go to outer space, you can check for yourself that if you throw something out, it just goes on forever without your intervention.
现如今,如果你去了外太空,你可以向外抛个物体试试,如果你不打断它,它就会一直运动下去
It's very clear you don't need a force if something is doing nothing, just sitting there.
显而易见,如果物体没有运动,只是静止状态,那是不需要力的
In kinematics, you don't ask the reason behind anything.
在运动学中,我们不关心现象背后的原因
The great discovery that Galileo and Newton made is that you don't need a force for a body to move at constant velocity.
伽利略和牛顿的伟大发现就是,物体不需要力来维持匀速运动
That also cannot happen, so they're moving with the same acceleration.
这也不可能发生,所以它们以相同的加速度运动
It looks like a tautology because you're never able to show me something that moves forever at a constant velocity, because every time you don't find such a thing, I give an excuse, namely, a force is acting.
这听上去像个死循环,因为你不可能,找到永远匀速运动下去的物体,因为每当你找不到这样的物体时,我就会给出一个理由,也就是,有力作用在上面
应用推荐