First, take the case in the elevator is on the ground floor of some building and completely addressed.

首先我们来看看电梯,在一楼时候的情况

耶鲁公开课 - 基础物理课程节选

We all know that in a falling elevator, you definitely do not escape the pull of gravity.

我们都知道在一个下坠的电梯里,你当然还是会受到重力的

耶鲁公开课 - 基础物理课程节选

When someone comes to us in the elevator in William James , ?" I says, "How are you doing?"

有人走向我们,在William，James大厅的电梯里，我说“你好吗“

哈佛公开课 - 幸福课课程节选

I'm going to give the last class a problem which is pretty interesting, which is what happens to you when you have an elevator.

我将讲解最后一个例题,非常有趣,也就是当你在电梯里的情形

耶鲁公开课 - 基础物理课程节选

Here is a weighing machine and that's you standing on the elevator.

这是个称重器,然后你在电梯里

耶鲁公开课 - 基础物理课程节选

In William James, maybe the case-- because the elevator-- it does take two hours to get there for the door to close.

在William，James大厅也许会遇到这种事-,因为那部电梯-,运作得太慢。

哈佛公开课 - 幸福课课程节选