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Wit M Theory, it seemed at last there was a theory which might explain everything in the universe. But before they could decide if this was true, the scientists need to know about this new eleventh dimension. It quickly became clear it was a place where all the normal rules of common sense have been abandoned. For one thing, it is both infinitely long, but only a very small distance across.
That eleventh dimension, well at its maximum size, could be something like a trillionth of a millimeter.
第十一维度,在其达到最大值时,可以是一万亿分之一毫米。
Well, this is tenth the minus 20 of a millimeter, that's taking a millimeter and dividing it by ten with 20 zeroes after it. So, that's very, very small.
That means that it exists only one trillionth of a millimeter from every point in our three dimensional world. It's closer than your clothes to your body, and yet we can't sense it. In this mysterious space, our membrane universe is floating. But first, no one could imagine how that worked. It began with Lisa Randall.
People look at rock climbing and it's of course very physical, but you'll soon find that you can concentrate on little thing. I like solving problems, I like games, I like figuring things out.
Randall had been fascinated by apparently inexplicable phenomenon, the weakness of gravity.
兰德尔显然对令人费解的现象,失重现象着迷。
There are various forces we see in nature. Most of them, we understand at some level. And then there's a gravity...
我们在自然界中看到有各种各样的力。他们中的大多数,我们已经在某种程度上有所了解。而重力…
注：听力文本来源于普特
