It's a physics toy that demonstrates angular momentum, potential energy, and kinetic energy.

是个物理学家的玩具可以演示角动量还有动能和势能。

Basically converting this energy into what's called potential energy.

基本上就是把个能量转换成所谓的势能。

So potential energy you might kind of remember from high school physics.

你们可能还记得高中物理里的势能。

Yeah, so it relies a lot on I suppose gravitational potential energy.

对，我认为主要借助于重势能。

And now, we can compute her gravitational potential energy at this piece.

现，我们可以计算她点上的重势能。

We have like kinetic energy, we have potential energy, friction.

我们有动能、势能和。

The three levels of physics are different based on fulcrum, potential force, and resistance force.

物理学的三个层次根据支点、势能和阻的不同而不同。

The challenge for science was learning how to unleash this potential energy in a controlled way.

科学界面临的挑战是了解如何以种可控的方式释放种势能。

When a thing is up at a height, it has stored potential energy.

当物体处于定高度时，它储存了势能。

So, E from gravity is mass times gravity times height, which I get here to be 822 joules.

重势能是质量乘重乘高度，我里得到的是 822 焦耳。

Then, when it's needed he blocks are released, spinning a turbine which converts the potential energy back into electricity.

然后，当需要的时候，些块被释放，旋转个涡轮机，将势能转换回电能。

I think this partly because potential energy has shown itself to be pretty efficient.

我认为部分是因为势能已经证明了它是非常有效的。

Both techniques are betting on potential energy as a solution for storing renewable energy for the grid.

两种技术都把赌注押势能上，将其作为为电网储存可再生能源的解决方案。

But potential energy isn't the only possible solution.

但是势能并不是唯可能的解。

Instead, renewable energy is used to lift heavy block of concrete up into the air where it becomes potential energy.

相反，可再生能源被用来将沉重的混凝土块提升到空中，那里它变成了势能。

This stores the energy by giving the water extra gravitational potential energy.

通过给水额外的重势能来储存能量。

Total energy is just kinetic plus potential.

总能量就是动能加上势能。

In this case our energy would be described as potential energy, right?

种情况下，我们的能量会被描述为势能，对吧？

It also at this point has potential energy due to its gravitational position.

此时它还具有由于重位置而产生的重势能。

To run, the most efficient runners store and recover elastic energy in tuned springs.

为了跑步，最高效的跑者会调谐的弹簧中储存并回收弹性势能。