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Close to the pyramid, everything is slowed down,
金字塔附近的一切都慢了下來
again, like the sluggish part of a river.
就像河流的緩流部分那樣
Here time itself is passing slower
相對于遠(yuǎn)處的時(shí)間流逝速度
compared to how it's passing further away.
這里的時(shí)間速度更慢一些
But what if people near the pyramid look outwards?
如果金字塔附近的人向外看又會(huì)怎樣
They must see the opposite effect.
他們一定會(huì)看到相反的效果
Because they are slowed down,
由于他們自己的時(shí)間減慢
they must see time in the distance as running fast.
一定會(huì)看到遠(yuǎn)處時(shí)間加速的景象
It's a simple result of the mass of the pyramid.
原因就在于金字塔的巨大質(zhì)量
This distortion opens the door to the possibility of time travel.
這種時(shí)間扭曲為時(shí)間旅行提供了可能性
So what we need to really travel in time
因此為實(shí)現(xiàn)真正的時(shí)間旅行
is something much more massive than a pyramid.
我們需要些質(zhì)量遠(yuǎn)大于金字塔的物體
And I know just the thing.
而我恰好知道一個(gè)符合條件的物體
Right in the center of the milky way,
就在銀河系中央
26,000 light-years from us,
距我們26000光年的地方
lies the heaviest object in the entire galaxy,
有整個(gè)銀河系中質(zhì)量最大的物體
hidden by a vast cloud of gas and stars.
隱藏在大片氣體和星體中
It's a supermassive black hole
它就是特大質(zhì)量黑洞
containing the mass of 4 million suns
質(zhì)量相當(dāng)于400萬個(gè)太陽
crushed down into a single point by its own gravity.
在自身重力作用下擠壓成一個(gè)點(diǎn)
The closer you get to the black hole, the stronger the gravity.
離黑洞越近，引力作用越強(qiáng)
Get really close, and not even light can escape.
接近到一定程度，即便是光也難以逃脫
So it's wrapped in
黑洞隱藏于
a sphere of darkness 15 million miles in diameter.
直徑為1500萬英里的黑暗球體區(qū)域
A black hole like this one has a dramatic effect on time,
像這樣的黑洞對時(shí)間具有強(qiáng)大的影響力
slowing it down
減慢時(shí)間的程度
far more than anything else in the galaxy.
甚于銀河系里其他任何物體
That makes it a natural time machine.
這使之成為一個(gè)天然的時(shí)間機(jī)器
I like to imagine how a spaceship might someday be able to
我對未來宇宙飛船如何利用
take advantage of this spectacular phenomenon.
這一奇觀拭目以待
Of course it would first have to avoid being sucked in.
當(dāng)然，它首先必須避免被吸入其中
The trick, I think, would be to aim
我認(rèn)為關(guān)鍵就在于
just off to the side so they'd miss it.
準(zhǔn)確無誤地沿切線駛過，才能避過黑洞
They'd have to
宇宙飛船必須
be on exactly the right trajectory and speed,
處于完全正確的軌道并達(dá)到精準(zhǔn)的速度
or they'd never escape.
否則在劫難逃
