Name: 這種甲蟲如何幫助解決我們的水危機｜進化科技 (How This Beetle Could Help Solve Our Water Crisis | Evolutionary Tech)
Uploaded: 2020-10-23T21:42:54.000Z
Duration: 5 min 14 s

He's thirsty, parched, and surrounded by fresh water

他口渴了，乾渴了，周圍都是淡水。

This isn't actually a riddle, it's a real problem

這其實不是一個謎語，而是一個真正的問題。

scientists have been trying to solve for years.

科學家們多年來一直試圖解決。

And the solution might just be this little beetle.

而解決辦法可能就是這隻小甲蟲。

Two-thirds of people on Earth face an extreme water shortage

地球上有三分之二的人面臨著極度缺水的問題。

Half a billion don't have enough water year-round.

And these numbers are only expected to rise

但這些地區中的許多地區缺乏的是

in traditional water sources, they make up for in fog,

在傳統水源中，他們彌補了霧。

It's one of the oldest and driest places in the world.

這裡是世界上最古老、最乾燥的地方之一。

Depending on how far you are from the coast,

rainfall averages about a half-inch to two inches per year.

每年平均降雨量約為半英寸至兩英寸。

But it's what we would consider a fog desert,

a place where fog is the main water source

for plant and animal life, like the Namib Desert beetle.

為動植物生命，如那密比亞沙漠甲蟲。

would seem to be really bad at capturing fog.

and our current fog-collecting technology

And this one represents the mesh's ability

to drain the collected droplets into a reservoir

So, based on the formula, the Namib Desert beetle

所以，根據這個公式，那密比亞沙漠甲蟲

Since, you know, beetles aren't made of mesh.

因為，你知道，甲蟲不是網眼做的。

然而，當霧氣滾滾而來的時候。

and fog basks, leaning down and into the wind.

As simple as that sounds, it's very literally

雖然聽起來很簡單，但從字面上看，它是非常簡單的

like trying to catch a cloud and pin it down.

就像想抓住一朵雲，然後把它釘在上面。

Hunter King: If you wave your fingers through mist,

you don't see just a path where your fingers were

你看不到的只是一條你手指的路

It just flows with the air, right through them.

它只是隨著空氣流動，直接穿過它們。

Narrator: But the beetle manages to do what we cannot.

但甲蟲能做到我們做不到的事但甲蟲卻能做到我們做不到的事。

Narrator: A lot of research has been done

on how the water moves to the beetle's mouth,

關於水如何移動到甲蟲的嘴裡。

how the droplets get there in the first place.

水滴是如何到達那裡擺在首位的。

Hunter King and his team tried to find the answer

獵人王和他的團隊試圖找到答案。

that scientists started researching first had exactly that,

科學家們首先開始研究的正是有。

And those bumps were theorized to have an impact

而這些顛簸理論上是有影響的。

King: It turns out the beetle that has the bumps

Narrator: King and his team decided to move forward

旁白：King和他的團隊決定繼續前進

In the lab, they 3D-printed spheres and cylinders

在實驗室裡，他們3D打印了球體和圓柱體。

with various surface textures, smooth, ridged, and bumpy.

具有不同的表面紋理，光滑、有脊、有凹凸。

They then put the spheres in a foggy wind tunnel.

然後，他們把這些球體放在一個霧氣繚繞的風洞裡。

Turns out the sphere with one millimeter bumps

captured fog 2.5 times better than the smooth sphere.

捕獲的霧氣比光滑球體好2.5倍。

that are maybe a little bit like the beetle

you go up to something like a factor of two,

Narrator: Further research in partnership

with computational fluid dynamics experts

at the University of Illinois, zoomed in even closer.

在伊利諾伊大學，更近距離放大。

that tested droplets' ability to bump into a surface.

Tiny water droplets have very little inertia,

and have to squeeze a film of air out of the way

The model found that the less squeezing droplets have to do,

該模型發現，擠壓液滴要做的事情越少。

which is what you should get with rougher textures.

這是你應該得到的更粗糙的紋理。

for harnessing and recreating these properties

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這種甲蟲如何幫助解決我們的水危機｜進化科技 (How This Beetle Could Help Solve Our Water Crisis | Evolutionary Tech)

material

determine

potentially

extreme