流言终结者（2003）

MythBusters S13E05

Part 4 Dec. 17, 2020, 12:55 p.m.

In a few minutes,
几分钟后
we are hoping that we'll be setting an unofficial world's record.
希望我们能创造一项非正式的世界纪录
Why are we using an air hockey table?
为什么选用空气曲棍球桌呢
Air hockey is a game in which the puck floats on a cushion of air.
空气曲棍球是一项球浮在一层气垫上的游戏
It's definitely floating.
绝对是浮着的
And now our metronomes will float on a cushion of air.
现在我们的节拍器也浮在一层气垫上
That should allow them the low friction environment
这种低摩擦的环境
that makes them shimmy their way to synchronization.
能使它们通过晃动达到同步
So, how do you want to do this?
你打算怎么做
I'll start at this corner.
我要从这个角落开始
Why don't you start at that corner,
你从那个角落开始
and we'll just go for it?
我们两面开弓
All right, you want to count it in?
你来倒数吧
All right.
好的
Three, two, one, go.
三二一开始
It's a painstaking task to start all the metronomes one by one.
逐一拨动节拍器可是个辛苦活
Done with my half.
我这半好了
But now that they're ticking at the same tempo,
节拍器正以同样的频率摆动
in theory, they should start that shimmy.
从理论上来说底板应该开始晃动了
Now they're all going.
它们都摆动起来了
They're all going,
它们都摆动起来了
And they're floating on the cushion of air.
而且浮在一层气垫上
I'm really -- I'm totally hypnotized by the sound.
我真的快被这声音催眠了
I know.
我懂的
But with 216 metronomes,
但216个节拍器
almost 20 times the amount of their last attempt,
几乎是上次实验的20倍
can they break a world record,
它们能否打破世界纪录
or will the metronomes march to a different tune?
又或者这些节拍器会奏出不同的节奏呢
It's the "Do try this at home?" special,
这里是"家庭实验"特辑
And next up, Adam and Jamie are investigating the old ball chain.
接下来亚当和杰米将对老式的珠链探究一番
We all know what this stuff is -- regular chrome ball chain.
我们都知道这是寻常的铬合金珠链
Keys, IDs, and dog tags
数十年来钥匙身份证和狗牌
have been hanging from it for decades,
都靠它来悬挂
But we've got a viral video
但我们找到一段疯传的视频
that seems to show this stuff, under the right conditions,
展示了在合适的条件下
behaving almost against the force of gravity.
珠链几乎能反重力运动
So, supposedly, this gravity defying feat
而且这场反重力表演
is achieved without any special effects wizardry,
应该不是特技效果
But are they yanking your chain,
到底是他们暗中提起了链子
or could you really recreate it with just a ball chain,
还是确实单凭一条珠链
a beaker,
一个烧杯
and, if you have one,
条件允许的话
a high speed camera?
外加一台高速相机就能做到呢
Check this out.
看仔细了
Let's check out the high speed.
我们看看回放
Hey, Adam.
快看啊亚当
No.
不是吧
It's like it's going all the way across the room.
感觉它要飞到房♥间那头的样子
It doesn't look like it should be able to do that, does it? No.
这看上去几乎是不可能的对吧没错
It's like magic.
就像魔法一样
That is freakin' gorgeous.
太壮观了
That is so freakin' cool.
太酷了
Cool and surprising,
既酷又惊艳
as the ball chain seems to levitate out and over the lip of the cup,
珠链似乎漂浮在了杯沿之上
and this strange behavior has gotten Jamie thinking.
这神奇的现象让杰米陷入了思索
Now, we've got some bigger chain.
现在我们换了更大的珠链
Let's see if it goes further.
看看效果是否更好
It does seem the bigger the ball,
看来确实珠子越大
the greater the effect,
效果越明显
But is this gravity defying act
不过这种反重力运动
also related to the distance you are from the ground?
是否也与离地的高度有关呢
Okay, let's see what this does from eight feet up.
我们看看离地2.4米进行实验的效果如何
That made a difference.
的确不一样
It's clear from our testing
从我们的实验来看
that there are two key forces that are causing this effect.
很明显两个关键因素导致了这样的结果
And the first is that mass moving in a particular direction
首先是让物体保持
wants to continue moving in that direction,
初始运动方向的惯性作用
So when we're yanking the chain up out of the pot,
所以我们将珠链猛地拉出烧杯的时候
It wants to continue moving upward,
它受惯性影响持续向上运动
but shortly after, gravity starts to pull it down,
但没过多久重力开始把它往下拉
and so that's where we get this arc.
所以形成了这样的弧线
If one of these forces is out of balance,
一旦其中一力失衡
like, as in if gravity starts to pull down too hard,
比如假设重力的影响太大
then we don't get as large of an arc.
就无法形成大弧度的弧线
But when these two forces are perfectly balanced,
但当两力恰巧平衡时
coupled with the unique symmetrical and slick design of this chain,
加上珠链独特的匀称而光滑的设计构造
it all converges to create an arc
就会形成一道
that seems like it should be impossible.
看来不可思议的弧线
But whatever the explanation, it's a really cool effect.
不管原理如何效果确实很赞
It's cool, and to take it to the max,
这很酷为了达到最佳效果
Adam's got this one all chained up.
亚当把所有条件都放到最大
The biggest ball chain I could possibly buy.
我能买♥♥到的最大的珠链
Whenever you're ready.
随时可以开始
Here we go.
开始
That was amazing.
太赞了
That worked really well.
效果真不错
It's almost magical watching the chain flow,
珠链的运动就像魔法一样
seemingly defying gravity, out of the cup.
它似乎摆脱重力飞出了烧杯
My favorite part about it, though,
但我最喜欢的地方是
is that is seems to be proportional to the size of the ball chain,
弧线的弧度似乎与珠链的体积成正比
So you get a little loop with stuff like this,
所以你用这个可看到小弧线
and you get a nice giant loop with stuff like this.
而用这个大家伙则可看到优美的大弧线
I didn't even know they made stuff this big until this story.
我以前都不知道有这么大的珠链
This is awesome.
真是太棒了
Yep, this chain reaction is surprisingly DIY.
没错这个"珠链魔法"非常适合自己动手
So, break out the beakers and the ball chain,
所以拿出烧杯和珠链
and make sure that you do try this at home.
在家试试吧
Next, the team is on a chemistry safari.
接下来终结者们将踏上化学实验之旅
All right, these next chemical experiments,
接下来的这些化学实验
fans want us to test,
粉丝们想让我们测试
one, if they're genuine
首先它们是否真实可信
and two, if it's something that they can try at home.
其次实验是否适合在家尝试
What are they?
是什么实验呢
Elephant toothpaste and exploding snakes.
大象牙膏和爆裂猛蛇
Elephants and exploding things?
大象还有会爆♥炸♥的东西
Are we sure that this is something that people can do at home?
这种实验在家做真的没关系吗
Well, with an ingredients list
鉴于所有材料
made up of household items,
都是普通的日用品
elephant toothpaste is the first DIY science to try.
我们决定先试试大象牙膏实验
All you need's a little hydrogen peroxide,
你只需要一些过氧化氢
the kind you would get for dying your hair,
染发时用的那种就行
liquid dish soap,
加上一点洗洁精
little food coloring for pizzazz.
一点食用色素做点缀
And, finally, the catalyst, which is plain old yeast.
最后加入催化剂普通的老酵母
Are you about to blow our minds?
你会让我们大吃一惊吗
I am. Stand back.
当然后退
It's like a volcano from science fair.
就像是科技展会上演示的火山爆发
Look at that. It's minty fresh.
快看啊还有清新的薄荷味
It's easy to see why this super-sized foam
现在知道为什么这些超大泡沫
is called elephant toothpaste.
会被叫做大象牙膏了
Now, in its basic form, hydrogen peroxide is extremely stable,
正常状态下的过氧化氢非常稳定
but what's happening here is when you add the yeast,
但一旦加入酵母
it's decomposing the hydrogen peroxide very rapidly,
就会使过氧化氢迅速分解
and releasing oxygen.
并释放氧气
The oxygen is getting captured inside the liquid dish soap,
氧气充入洗洁精中
which is creating bubbles
由此产生气泡
and this big, foamy, awesome mess.
形成这么个惊人的巨型泡沫
And although it passes the try this at home test,
虽然这实验经验证可在家尝试
it's just a frothy fountain.
但它只不过是个冒泡喷泉而已
So how about an only on "Mythbusters" twist?
不如来点《流言终结者》独家新突破