But there are independent ways to measure the Hubble constant.

但是还有别哈勃常数方法。

It turns out, that orbit is the square root of 27 times just a handful of fundamental constants.

结果是，轨道是27倍于少数基本常数平方根。

Now, they're defined by natural mathematical constants that never change.

它们是由不变自然数常数定义。

This allows you to redefine Avogadro's constant. At the moment, Avogadro's constant is defined

我们可以用这个来从新定义阿伏伽德罗常数。 现在阿伏伽德罗常数定义取决於公斤。

For example, the skill of subtracting constants from both sides of an algebraic equation.

例如，代数方程两边同减去常数技巧。

(half of the spring constant), times the (amplitude squared).

弹簧常数一半乘以振幅平方。

Now we apply these figures to our formula for the equilibrium constant.

现在我们将这些数字应用到平衡常数公式中。

This is the mystery constant which Alice doesn't yet know.

这是 爱丽丝还不知道神秘常数。

So that's what the constant means.

这就是常数含义。

Say you increase the size of Earth, so Earth's gravitational constant increases.

假设你增加了地球小，地球引力常数就会增加。

Mathematically, the work function equals the product of Planck's constant and the threshold frequency.

在数上，功函数等于普朗克常数和阈值频率乘积。

The other thing that's counterintuitive about exponential growth is how sensitive it is to this constant.

关于指数增长另一件违反直觉事情是它对这个常数敏感度。

Sure. We could try multiple regressions with varying physical and experimental constants.

可以啊。我们试试用不同物理常数与实验常数进行多元回归分析。

With a funny rate that contains all the elementary rate constants as part of it.

一个有趣速率包含所有基本速率常数, 作为它一部分。

For every planet, no matter its period or distance, that constant is the same number.

对于每一颗行星，无论它周期或距离，这个常数都是相同数字。

The symbol for this kind of equilibrium constant is Ka, for an acid, or Kb for a base.

这种平衡常数符号是​​ Ka（酸）或 Kb（碱）。

This is a great question because we are constantly wondering if the constants of nature really are constant.

这是一个很好问题，因为我们一直在思考自然界常数是否真是常数。

Then finally, this is a constant with respect to m.

最后，这是关于 m 常数。

It's the whole collection of normals where you can plug in a mu and a sigma of your choosing.

这是所有常数集合, 你可以插入一个mu和一个你选择sigma。

There's no n here, so this is a constant with respect to n.

这里没有 n，所以这是一个关于 n 常数。