on Endurance(持久力 耐久力)2

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As a young magician, I was obsessed(对...着迷的，困惑的) with Houdini and his underwater challenges,

So, I begun, early on, competing against other kids.

Seeing how long I could stay under water while they went up and down to breath, you know, 5 times, while I stayed under on one breath.

By the time I was a teenager they would hold my breath for 3 minutes and 30 seconds.

I would later find out that was Houdini's personal record.

In 1987, I heard of a story about the boy that fall through ice and was trapped under a river.

He was underneath, not breathing for 45 minutes.

When the rescue workers came they resuscitated(美[rɪˈsʌsɪteɪtɪd]是苏醒，使恢复知觉) him and there was no brain damage,

His core temperature has dropped to 77 degrees.

他的核心温度降至77度。

As a magician, I think everything is possible.

And I think if something is done by one person, it can be done by others.

I started to think of the boy could survive without breathing for that long , there must be a way that I could do it.

我开始思考，这个男孩那么长时间没有呼吸都可以存活下来，那么必定有种途径我也可以。

So, I met with a top neurosurgeon(神经外科医生) ，

And I ask him how long is possible to go without breathing, like how long could I go without air?

And he said to me that everything over 6 minutes, you have a serious risk of hypoxic (含氧量低的) brain damage.

So I took that as a challenge, basically.

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1. Why did Berlin believe that was possible for humans to stay under water for a long period of time?

....He heard about a boy who survived after being trapped under ice for 45 minutes.

2. To resuscitate someone means to ....bring them back to life.

   选词填空

3. As a magician, I think everything is possible. And I think if something is done by one person, it can be done by others.

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My first try, I figured that I could do something similar and I created that water tank, and I filled it with ice and freezing cold water.

And I stayed inside of that water tank hoping my core temperature(体心温度) would start to drop.

And I was shivering. In my first attempt to hold my breath, I could even last in a minute.

So, I realized that was completely not going to work.

So, I went to talk to a doctor friend,

And I asked him, what how could I do that?

I wanted to hold my breath for a really long time, how could it be done.

 And he said, David, you are a magician, create the illusion of not breathing, it will be much easier.

So, he came up with this idea of creating a re-breather with the CO2 scrubber.

Which was basically a tube from Home Depot, with a balloon duck-taped to it,

that he thought we could put inside of me, and somehow be able to circulate the air and rebreathe with this thing in me.

This is a little hard to watch, but this is that attempt.

So that clearly wasn't going to work.

Then I actually started thinking about liquid breathing,

there is a chemical that's called perflu-bron.

And it's so high in Oxygen levels, that in theory you could breathe it.

So, I got my hands on that chemical, filled the sink up with it.

And start my face in the sink and try to breathe that in, which is really impossible.

It's basically trying to breathe, as a doctor said, while having an elephant standing on your chest.

So, that idea disappeared,

then I started thinking, would it be possible to hook up a heart/lung bypass machine,

and have a surgery where it was a tube going into my artery,

and appear to not breath while they were oxygenating my bloood?

Which was another insane idea, obviously.

Then I thought about the craziest idea of all the ideas: to actually do it.

To actually try to hold my breath past the point that doctors would consider you brain dead.

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1. Why did Berlin submarine him in ice water?

.. He thought it would help him hole his breath longer.

2. To get your hands on something means... to obtain it.

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So I started researching into Pearl divers.

You know, because I go down for four minutes on one breath,

And when I was researching pearl divers, I found the word of free - diving.

It was most amazing thing that I ever discovered, pretty much.

There's many different aspects to free-diving.

There is depth record, where people go as deep as they can.

And then there is static apnea().

That's holding your breath as long as you can in one place without moving.

That was one that I studied.

The first thing that I learned is when you're holding your breath, you should never move at all, that wastes energy.

And that depletes() O to oxygen, and build up CO2 in your blood.

So I learned never to move, and I learned to have slow my heart rate down.

I had to remain perfectly still and just relax and think that I wasn't in my body, and just control that.

And then I learned how to purge(清洗 净化).

Purging is basically hyperventilating(换气过度 ).

You blow in and out..

You do that, you get lightheaded(头昏眼花 头晕目眩), you get tingling(刺痛).

And you're really ridding your body of CO2.

So, when you hold your breath it's infinitely easier.

Then i learned you have to take a huge breath, 

and just hold and relax and ever let any air out, and just hold and relax through all the pain.

Every morning, this is for months, I would wake up and the first thing that I would do, is I would hold my breath.

For at 52 minuets, I would hold my breath for 44 minutes.

So, basically what that means is I would purge. I 'd breath really hard for a minute.

And then I would hold, immediately, after for 5 and half minutes.

Then I would breath again for a minute, purging as hard as I can,

then immediately after, I would hold again for 5 and half minutes.

I would repeat this process eight times in a  row.

At 52 minutes, only breathing for 8 minutes.

At the end of that you're completely fried.

You feel like you're walking around in a daze, and you have these awful headaches.

Basically, I'm not the best person to talk to when I'm doing that stuff.

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1. What are the science facts of purging?

...Lightheadedness and tingling of the body.

2. What technic did Berlin learn after studying free-diving?

... to stay still when he was holding his breath.

完形填空

3.  I would breathe again for a minute, purging as hard as I can, then immediately after I would hold again for 5 and half minutes.

听 复述

5. I think if something is done by one person, it can be done by others.

6. Moving depletes oxygen , and it builds up CO2 in your blood.