Planck time is the time it takes light to travel a Planck length.

普朗克时间则是光需要传播一普朗克长度所需的时间。

The scale here is the Planck length, which is the distance light travels in a Planck Time.

这里的尺度是普朗克长度，表示光在一普朗克时间所传播的距离。

Likewise on the other end, does the bigness of the universe match the smallness of the Planck length?

同样，在“比较天平”的另一端，宇宙之大是否与普朗克长度之小相匹配呢？

The theoretical smallest physical distance is the Planck length, a hundred million times smaller than even the pancake proton.

理论上最小的物理距离是普朗克长度，它甚至比饼状质子还要小一亿倍。

And at the scale of the Planck length, space would be made of grains of space.

在普朗克长度的尺度上，空间将由空间颗粒组成。

Apparently if an atom was the size of the Earth, then the Planck length would be the size of an atom on that Earth.

索伦：显然，如果一个原子是地球的大小，那么普朗克长度将是地球上一个原子的大小。