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令人惊奇的沙子的生命 – 译学馆
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令人惊奇的沙子的生命

The Amazing Life of Sand | Deep Look

沙是时间胶囊
Sand is a time capsule.
每一粒沙子都在述说过往
Every grain tells a story.
任何磨损的东西都会成为沙子
Sand can be anything that’s been worn down
直到他们变回曾经微小重要的模样
until it’s reduced to some tiny essential fragment of what it once was.
有关沙的称呼很专业
It’s a technical term.
比沙大的叫砾石
Bigger than sand? That’s gravel.
小的呢?叫淤泥
Smaller? Silt.
漫步于世界各地的沙滩
Go to beaches across the world
你会发现沙子看起来截然不同
and you find sand that looks completely different.
若你能从每一个海滩里拾得一颗沙粒
If you could take a single grain of sand from every beach
全世界浩瀚的历史
you would have a history of the world
便紧捏在你的手指之间
pinched between two fingers.
一个世纪前
A hundred years ago,
雪乐山脉上的一块大花岗岩上
a pebble chipped off a slab of granite
脱落了一块卵石
in the Sierra mountains.
它随着萨克拉门托河漂流
It was dragged by the current of the Sacramento River
穿越三角洲 经过金门大桥
through the Delta, out the Golden Gate
最终到达旧金山的沙滩上
and onto the beaches of San Francisco.
沙子有时也是块墓地 埋葬许多尸体
Sometimes, sand is a graveyard, full of dead bodies.
这是一只小有孔虫的外壳 它是种单细胞生物
This is the shell of a tiny foram, a single celled organism
其骸骨随意散落在海底
whose skeletons litter the bottom of the ocean.
这些沙子呢? 几乎全都是珊瑚
This sand? Almost entirely coral.
这个是夏威夷火山的熔岩碎片
This one, shards of lava from a Hawaiian volcano.
这一小块石英金块
This tiny nugget of quartz tumbled down
从阿巴拉契亚的瀑布中滚落
the waterways of Appalachia,
一直漂流到佛罗里达的沙滩上
all the way to the beaches of Florida.
到达那时 它已磨损成糖粒一般大小
By the time it got there, it had worn down to the consistency of sugar.
时间总能让厚重巨大的东西变得轻巧精细
Time takes a big thing, and makes it small.
有时则恰恰相反
But sometimes the opposite can happen.
瞧瞧鲕粒
Behold, ooid.
唯一不会削减反而逐渐增加的沙子
The only sand that accretes rather than erodes.
想想雪球效应
Think snowball effect.
将一小粒盐水虾的粪便投入海里
A tiny speck of brine shrimp poop
它会在海底滚动
is tossed and turned on the ocean floor
吸附着像钙这样的矿物质而不断扩大
accumulating minerals like calcium,
直到成为针尖大小的沙粒
until it’s a grain of sand the size of a pin tip.
沙是一张时间快照
Sand is a snapshot in time,
它将庞大和微小
a stopping point between the very big and the very small,
内陆和海洋定格
the landlocked, and the oceanic.

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视频概述

观察一粒沙子的前世今生,了解地理历史变迁。

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https://www.youtube.com/watch?v=VkrQ9QuKprE

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