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As soon as scientists were able to capture electrical energy they began to experiment with it.
科學(xué)家們一能捕捉到電能，就開(kāi)始進(jìn)行實(shí)驗(yàn)。
In 1780, an Italian anatomist, Luigi Galvani, made groundbreaking discoveries.
1780年，意大利解剖學(xué)家路易吉·加里尼有了突破性的發(fā)現(xiàn)。
Galvani made lightning measurements.
加里尼做了閃電測(cè)量。
Galvani took frogs legs and showed that when, when it lightninged that they twitched.
加里尼拿著青蛙的腿演示出，打閃的時(shí)候它們會(huì)抽搐。
So, he showed that the lightning radiates an electric field which produces a voltage on the frog legs.
他證明了閃電能輻射出一個(gè)電場(chǎng)，在青蛙腿上產(chǎn)生電壓。
Pull the switch.
拉開(kāi)關(guān)。
Wait, I, I, I thought I saw a pulsation of the heart.
等等，我以為我看到了心臟的搏動(dòng)。
Doctor Blanchard, he's beginning to breathe.
布蘭查德醫(yī)生，他開(kāi)始呼吸了。
You've brought this man back to life.
你讓這個(gè)人復(fù)活了。
No, no, no, no, no, no.
不不不。
The heart muscle just simply responded to a terrific electrical shock, that's all.
心臟肌肉只是對(duì)一次電擊做出了反應(yīng)，僅此而已。
What was once thought to be science-fiction turned out to be fact.
曾經(jīng)被認(rèn)為是科幻小說(shuō)的內(nèi)容后來(lái)變成了事實(shí)。
A heart beats because every second electrical impulses spread through the heart muscle, triggering and coordinating a movement.
心臟跳動(dòng)是因?yàn)槊棵腌姸加须娒}沖通過(guò)心肌傳播，觸發(fā)并協(xié)調(diào)運(yùn)動(dòng)。
These signals send echoes through the body tissue to the skin where they can be detected by metal sensors and displayed as an electrocardiogram, an electrical readout that allows doctors to constantly monitor the heartbeat.
這些信號(hào)通過(guò)人體組織將回聲發(fā)送到皮膚，在那里它們可以被金屬傳感器檢測(cè)到并顯示為心電圖，這是一種讓醫(yī)生持續(xù)監(jiān)測(cè)心跳的電子讀數(shù)器。
Electricity and electrical impulses are, are all over the body.
電和電脈沖遍布全身。
The electricity in our bodies is created by chemical reactions between cells.
我們體內(nèi)的電是由細(xì)胞間的化學(xué)反應(yīng)產(chǎn)生的。
What triggers the heart to squeeze are these signals, these small electrical currents which travel from the outside to the inside of the cell when, every time your heart beats.
觸發(fā)心臟擠壓的是這些信號(hào)，這些小電流在每次心臟跳動(dòng)時(shí)從細(xì)胞外傳到細(xì)胞內(nèi)部。
Doctor Hugh Calkins is an electrophysiologist at Johns Hopkins University.
休·卡爾金斯博士是約翰·霍普金斯大學(xué)的電生理學(xué)家。
He uses electricity to treat and cure electrical malfunctions of the heart.
他用電來(lái)治療和治愈心臟的電故障。
Today, he is implanting a device in a patient who suffers from a condition that causes the heart to beat too fast.
今天，他正在給一位心臟跳動(dòng)過(guò)快的病人植入一種裝置。
It takes a certain amount of the heart time for the heart to squeeze blood out of the heart and also for blood to get back into the heart.
心臟需要一定的心臟時(shí)間才能將血液擠出心臟，也需要一定的心臟時(shí)間才能回到心臟。
So, so, if you go very, very fast instead of squeezing in a rhythmic fashion it will literally be quivering and no blood will flow in the body
所以如果走得非?？欤皇怯泄?jié)奏地?cái)D壓的話(huà)，它會(huì)顫抖，體內(nèi)就不會(huì)有血液流動(dòng)，
and within seconds you'll pass out and and in minutes after that you'll, you'll be dead.
幾秒鐘內(nèi)你就會(huì)暈過(guò)去，幾分鐘后你就會(huì)死亡。
