Name: 【TED-Ed】看見體內潛藏的世界 (Visualizing hidden worlds inside your body - Dee Breger)
Uploaded: 2014-09-12T14:00:35.000Z
Duration: 6 min 6 s

我想要帶領你們進入一段旅程，

into some hidden worlds inside your own body

藉由掃描式電子顯微鏡 讓你們看看

你們自己身體裡面 潛藏的世界。

These microscopes use a beam of electrons

to be seen by the photons of visible light.

if you mentally divide one tiny millimeter

如果你想像把小小的一毫米（millimeter）

每一小段就是一微米（micrometer），

那每一段就叫做奈米（nanometer）。

So, let's start with something on the body

that we can measure at about 100 microns wide,

which now you can see is covered with scales,

而實際上，所有 哺乳類動物的毛髮都是。

that are being secreted into a storage chamber

Electron images only happen in black and white.

I often colorize my images for various reasons,

我常常因為各種理由 幫它們染色，

when I photographed them in the microscope.

And the heart muscle has this curious structure

that's kind of like corrugated cardboard.

That's what allows the heart to expand and contract as it's beating.

心臟跳動時 要舒張或收縮時就要靠它。

這就是你體內 正在工作的免疫系統。

哪些東西是你不想吸進來的呢？

Well, we all know to stay away from asbestos

and now you can see that it's composed of

Each one of those needles is a single crystal.

每一根針都是 一個獨立的晶體。

And in this picture, they're begininng to pry apart

What else might we want to avoid breathing?

你想避免吸入的 可能還有什麼？

We're looking here at the particles of diesel soot,

我們這裡看到的 是一些油煙粒子，

In fact, each one of these little particles

of nice, fat, happy, healthy red blood cells,

良好、肥大、 快樂、又健康的紅血球，

but they're all tangled up in a network of fibers.

但是它們都被一團纖維 捲在一起。

And so, it surrounds a group of red blood cells

所以，它把一群紅血球 還有其它細胞圍住，

跟血栓那張看到的那些不一樣。

and beginning to grow what's going to become spikes.

which you can see is covered with bacteria,

to about 1,000 different species of bacteria.

or the internal surfaces of the teeth themselves.

and I want to call your attention to the little holes.

而我想請你們注意一下那些小洞。

字幕列表影片播放

【TED-Ed】看見體內潛藏的世界 (Visualizing hidden worlds inside your body - Dee Breger)

tooth

picture

body

mouth