一群伟大的科学家去世后在天堂里玩藏猫猫。轮到爱因斯坦抓人，他数到100睁开眼睛，看到所有的人都藏起来了，只有牛顿还站在那里。

A bunch¹ of great, DEAD scientists were playing hide-and-seek in heaven. When it's Einstein's turn to be the seeker, he counted untill 100 and opened his eyes. All the others were hide, but only Newton were still standing² there.

爱因斯坦走过去说：“牛顿，我抓住你了。”

Einstein walked to him and said: "Newton, I've got you!"

牛顿：“不，你没有抓到牛顿。”

Newton answered: "No. You didn't got Newton."

爱因斯坦：“你不是牛顿你还能是谁？”

Einstein said: "Then who are you!?"

牛顿：“你看我脚下是什么？”

Newton said: "Look, where am I standing?"

爱因斯坦低头，看到牛顿站在一块长、宽都是一米的正方形地板砖上，大为不解。

Einstein looked down and found that Newton was standing on a square floor board with one metre long and one metre wide. He didn't understand.

牛顿：“我脚下是一平方米的方块，我站在上面就是牛顿/平方米。所以你抓住的不是牛顿，你抓住的是帕斯卡。”

Newton then said: "There's one square meters under my feet. It then make us 'Newton divided by square meter". So, what you've got is not Newton, but Pascal."

沪江小编解释：物理公式当中“1牛顿/平方米=1帕斯卡”……物理学家的笑话好冷、真的好冷……