couldn't figure out how anything could move… Now before you complain that I'm exaggerating,

在你抱怨我誇大其詞之前......在你抱怨我誇大其詞之前。

check out this cat! You can clearly see that the cat is moving away from Einstein at a

看看這隻貓!你可以清楚地看到這隻貓正在遠離愛因斯坦，以一個

constant velocity… but do a little sliding switcheroo, and suddenly it looks like Einstein's

恆速... 但做一個小的滑動切換， 突然它看起來像愛因斯坦的

the one moving. This is the "old-fashioned principle of relativity," so of course it's

動的那一個。這就是"老式的相對論原理，"所以當然，它'。

the one we teach in schools… but the point is that the switcheroo changes relative things,

我們在學校裡教的那個......但重點是，交換器改變了相對的東西。

like position and velocity, and not absolute ones, like the separation of Einstein from

像位置和速度，而不是絕對的，就像愛因斯坦和愛因斯坦的分離一樣

his cat.

他的貓。

Now for the problem: before Einstein was even born, physicists showed that the speed of

現在的問題是：在愛因斯坦出生之前，物理學家就已經證明了速度

light was one of those absolute things which can't be changed by a switcheroo, so any switcheroo

光線是絕對的東西之一，不能通過切換器改變，所以任何切換器

we do has to keep light moving at the same speed. But then it's obvious that we can't

我們做有保持光移動在相同的速度。但很明顯我們不能...

do our sliding switcheroo at all, which means we can't explain how anything other than light

做我們的滑動切換器，這意味著我們不能解釋任何東西，而不是光。

can move!

會動！

Ok, I spoke too soon… there is one solution – do you see it? We were assuming that our

好吧，我說得太早了......有一個解決辦法--你看出來了嗎？我們假設我們的

switcheroo had to keep every slice of time at the same, well, time. But there's no law

switcheroo不得不保持每片時間在相同的，嗯，時間。但沒有法律

of physics that says time is an absolute thing that can't be changed by switcheroos… so

物理學上說，時間是絕對的東西，不能被開關機改變......所以。

if we just rotate the slices of time while sliding them, then we can keep the speed of

如果我們只是一邊旋轉時間片，一邊滑動它們，那麼我們就可以保持時間片的速度。

light the same, and explain how things can move, too.

光一樣，並解釋了事物如何能移動，也。

Of course, Einstein didn't figure out this "special principle of relativity" in 1905

當然，愛因斯坦在1905年並沒有弄清楚這個"相對論的特殊原理"。

- it was already done by a guy named Lorentz ten years earlier. But Lorentz just thought

- 早在十年前就已經由一個叫洛倫茨的人完成了。但洛倫茨只是認為

this time-rotation was a mathematical trick… and it took Einstein to step in, and, you

這個時間輪迴是一個數學把戲... 愛因斯坦介入後，你才發現

guessed it, propose that "time-rotation" is real, that time really is relative, and that

你猜對了，提出"時間輪迴"是真實存在的，時間真的是相對的，而且。

consequently, simultaneous events relative to one observer aren't simultaneous relative

是以，相對於一個觀察者來說，同時發生的事件並不是同時發生的。

to another who's moving. Now that's a real switcheroo of perspective.

到另一個誰'的移動。現在，這是一個真正的視角切換。