了解宇宙是如何运行的（2010）

How the Universe Works S09E07

Part 8 March 16, 2022, 8:55 a.m.

形成草原
creating grasslands.
那么这将如何改变或提高我们的智力呢？
So how could this
change/boost our intelligence?
随着森林家园被烧毁，我们的祖先，早期的原始人类
With their forest homes burnt,
our ancestors, early hominids,
不得不适应户外生活，这就意味着站立
had to adapt to life out in the
open, which meant standing up.
丹·杜尔达:你生活在一个大草原上
DAN DURDA: You're
living in a savanna
那里有狮子豹子和猎豹
where there's lions and
leopards and cheetahs,
而大草原大部分是草地
and the savanna is
mostly grassland.
也许两条腿走路更有效率
It's a lot more efficient,
perhaps, on two feet.
您可以跑
You can run.
用两只脚移♥动♥
And moving on two
feet might have
可能是生存机制
been the survival mechanism.
直立行走也引发了我们历史上
Standing upright also
triggered the most important
最重要的变化
change in our history.
丹·杜尔达:用两只脚走路
DAN DURDA: Walking
around on two feet
解放了我们的双手，使我们能够开始做事
freed our hands to be able
to start doing things.
当你——你懂的，当然，你可以想象
And as you-- you know, of
course, you can imagine that,
当你开始做事情的时候，你的大脑
as you start doing things,
that drives your brain to more
会变得更加复杂因为你试图
complexity as you're
trying to figure
弄清楚如何操纵事物
out how to manipulate things.
这也许是最大的进化飞跃
And this is perhaps the biggest
因为，没有它
evolutionary leap,
because, without it, we
我们就无法使用工具
don't get tool use.
我们就没有火
We don't get fire.
我们就无法获得智慧
We don't get intelligence.
当我们的祖先
As our ancient
ancestors adapted
适应他们的新栖息地时，他们迈出了
to their new habitat, they
took their first steps
统治世界的第一步
toward world domination.
至少理论上是这样的
At least, that's the theory.
这里提出的观点是，这将是我们
The idea presented here
is this would be the dawn
所看到的现代人类的黎明
of modern humans as we see it.
这要归功于伽马射线暴
And we would owe
that to lightning
产生的闪电
created from a gamma ray burst.
这太疯狂了
That's nuts.
超新星是非凡的
Supernovas
are extraordinary.
他们开启了我们的宇宙之旅
They launched our
journey into the cosmos.
假以时日，一颗超新星可能会终结这一切
And in time, a
supernova may end it.
我们正在努力寻找可能是哪一个
We're searching hard to
spot which one it could be.
但就目前而言，我们能确定的唯一方法是
But, for now, the only
way we'll know for sure
它何时照亮我们的天空
is when it lights up our sky.
虽然超新星看起来像是一颗恒星的死亡
While a supernova might appear
to be the death of a star,
但它的美妙之处在于，它其实也是一个
the beauty of it is
that it's really a story
关于恒星起源的故事
about beginnings, as well.
超新星即给予，也掠夺
Supernovae giveth,
and they taketh away.
没有超新星，地球就不存在
Without supernovae, the
Earth wouldn't exist
我们也就不存在
and we wouldn't exist.
我确实想象过在一个美好的冬夜
I actually do imagine standing
out on a nice winter night,
仰望着参宿四
looking up at
Betelgeuse, and actually
亲眼看到它爆♥炸♥
seeing the thing explode.
会有明亮的光
There would be
this bright light.
我可以想象我的脸会容光焕发
I can imagine my
face lighting up.
我真的会失去它
I would really lose it.
我很想近距离看一看超新星
I would love to see
a supernova up close,
丹·杜尔达: 是吧？
DAN DURDA: Right?
我是说，这真是一场灯光秀
I mean, what a light show.
但我不想要这么近
But there's no way I would
want to be that close
因为我还不想死
because I don't want to die.