A constant, right. Why do you need the constant?

缺个常数对为什么需要这个常数
Very good. Yes?

很好请讲
The units don't match, right?

这里的量纲不匹配对吧
So, if some kid called, Isaac comes to you and says,

如果有孩子打电话问有个叫伊萨克的人来找你说
"I got this new law of gravitation",

"我发现了新的引力定律"
I would say "Go back and fix your units."

我会说 "回去看看你的量纲对不对"
The units don't match.

这里的量纲是不匹配的
But not only that, I think some of you had another objection,

除此以外你们中还有其他反对理由吧
that if you took the mass of the Earth and mass of the Moon and the apple

如果把地球月球和苹果的质量
and divided by the radius,

代入公式除以半径
you'll get a number

你得到的值
that won't agree with the force of gravity near the Earth as we know it.

和我们所知近地引力的大小是不同的