科学家使用该理论追踪我们的早期宇宙，发现宇宙开始点拥有一个最小的体积，但是并不是零，一个最大的能量但不是无穷大。

Scientists using this theory to trace our universe backward in time have found that its beginning point had a minimum volume that is not zero and a maximum energy that is not infinite.

youdao

宇宙在每一个“万古期(世代)”伊始的体积为零并保持高度均匀形态。

Each aeon starts off with the universe being of zero size and high uniformity.

youdao

体积恒定，什么是零？

Constant volume, what's zero?

youdao

OK, for constant volume, this is zero.

对于恒定体积过程，第二项等于零。

麻省理工公开课 - 热力学与动力学课程节选

Constant volume, what's zero?

体积恒定，什么是零？

麻省理工公开课 - 热力学与动力学课程节选

So dS for u and V fixed is greater than zero.

所以当内能u和体积V固定时，dS大于零。

麻省理工公开课 - 热力学与动力学课程节选