哇 这些腿抖的好厉害 Whoa, those legs are shaking quite a lot!
天哪 这么多人 都在抖腿 Oh my, so many of them, all shaking!
一共有一百人 100 people in all.
今天我们将通过抖腿来发电 Today, we’re going to shake our legs to make electricity!
我们要尝试着点亮一万个灯泡 We’ll try to light up ten thousand light bulbs!
精彩的实验 培养科学意识 Spectacular experiments to sharpen your sense of science.
让自然现象直观可见 从而揭示自然规律 Making natural phenomena visible to reveal the rules governing them.
现在 你将见证一场 Today, you’ll witness a grand experiment
大科学实验 and discover science
这是... What the…
怎么了 他很紧张吗 What, is he nervous!?
我们不能利用这种晃动吗 Can’t we use this shaking for something?
好吧 让我们先来看一下他是怎么抖腿的 Well, let’s first look at how he’s shaking.
这个人小幅度地上下抖动他的腿 This person is shaking his legs up and down in very small movements.
这些动作有多快 幅度有多大 How fast are the movements, and how big are they?
我们做出标记 来看一下腿的哪个部分晃动最厉害 We’ll mark some spots to see what part of the leg is moving the most.
一分钟内 这条腿进行了大约 In a minute, this leg went through the motion
三百二十次上下运动 of going up and back down, about 320 times.
真的吗 那么多次 Really!? That many times!?
膝盖晃动最厉害 It’s the knee that moves the most.
每次大概移动五厘米 It moves about 5 cm each time.
那么多 That much!?
我们不能将其好好利用起来吗 Can’t we put it to good use somehow?
这是什么 What is this?
一种压电装置 A piezoelectric device.
它能获取能量转化为电 It can capture energy and turn it into electricity.
经常被用于发出电子旋律 It’s often used to sound electronic melodies.
开启时 发出声音 关闭时 声音停止 When it opens, the sound starts, and when it closes, the sound stops.
折叠时发电 Electricity is made when it is bent.
哇 所以只需要弹一下就能发电 Wow, so it can make electricity from just being flicked on.
没有开始 It’s not coming on.
电压装置没有弯曲 The piezoelectric device isn’t bending.
开启了 It turned on!
这个装置利用了震动 The vibration was picked up by the device.
让我们连上十个灯泡 Let’s hook up 10 bulbs.
灯泡没亮 It’s not working.
再使劲晃动 Let’s try shaking more!
亮了 They’re on!
对 使劲晃动能使灯泡变亮 Right, hard shaking will get the lights to turn on!
当震动幅度小时... When the vibration is soft…
当震动幅度大时... When the vibration is hard…
能获得更多电压 We get more voltage
抖腿震动幅度越大 电压就越大 The bigger the vibration from the leg shaking, the more voltage we get.
但是一个人能产生的电压是有限的 But there is a limit to the voltage a single person can produce:
产生的电压可以亮起一百个灯泡 which is enough to light up 100 of the bulbs.
然而我们的目标 是要亮起一万个灯泡 Our goal, however, is to light up ten thousand of them.
那我们就去找更多的人 Let’s get more people, then!
今天 一百个人将通过抖腿运动 Today, 100 people will try to light up ten thousand bulbs
试着点亮一万个灯泡 by shaking their legs.
一个嵌板上有一百个灯泡 我们准备了一百块这样的板 One panel carries 100 bulbs. We’ve prepared 100 panels,
这样一来我们就有一万个灯泡了 so we have a total of ten thousand bulbs.
每个嵌板固定在框架里 来打造三米乘三米的屏幕 Each panel is fixed onto the frame. To create a 3 by 3 meter screen
十个小时过后 屏幕组装好了 After 10 hours, the screen is assembled.
最后的任务就是把电压装置和灯泡连在一起 The last task is to hook up the piezoelectric devices to the bulbs.
我们准备好了 We are ready.
我们已经集合了最棒的抖腿人 We’ve gathered the best leg-shakers around!
好了 看起来他们能成功 Alright! They look like they can make it happen!
他们都是很棒的抖腿人 但是他们的年龄和体力差别很大 They’re all good leg shakers, but they vary greatly in age and physique.
那他们抖腿也会很不一样吗 Do they shake their legs differently too?
每个抖腿人都在腿上找 Each leg shaker looks for the place on the leg,
装置弯折最厉害的部分 然后用胶带固定 where the device bends the most, and then tapes it.
每个抖腿人都分配一个嵌板 Each leg shaker is assigned to a panel.
前排的抖腿人负责点亮最上面一排的嵌板 The leg shakers in the front row will be lighting up the top row of panels.
他们边抖腿边查看嵌板是否亮了 As they check to see if the panels are lighting up, they shake their legs.
如果所有的嵌板都亮了 那么实验就成功了 If all of the panels light up, the experiment is a success.
实验开始 Begin the experiment!
嵌板亮了 但是不是同时亮的 They’re on! But not at the same time.
灯泡亮了 但是只是有电的一瞬间才亮 This bulb lights up, only for the moment it receives electricity,
所以很难让他们抖腿一致 so it’s difficult to shake their legs in sync
来同时点亮这些嵌板 to light up the panels simultaneously.
我们查看一下是否每块嵌板都亮了 We check to see if each panel is lighting up.
有些嵌板自始至终都没亮过 Hey, there are panels that aren’t lighting up at all.
试验进行了五分钟后 我们停止了抖腿 5 minutes since the start of the experiment, we stop the leg shaking.
这个抖腿者的灯泡根本没有亮 This shaker’s panel was not lighting up at all.
电线和装置分离了 The wire is disconnected from the device.
晃动太厉害 电线脱落了 The shaking was so hard that the wire came off.
好吧 因为他们是很棒的抖腿人 Well, they’re here because they’re hard shakers!
他们最终都会把电线抖落 That means they’ll all eventually shake off their wires.
我们将给每个抖腿人分配三个装置 We’re going to put three devices on each leg shaker.
这样 即使一个脱落了 仍然能点亮灯泡 This way, they can still light up the bulb, even if one gets disconnected.
我们准备好了 We’re all ready.
实验开始 Begin the experiment.
点亮灯泡的数量增多了 They’re lighting up more than before.
这个人的装置弯折了 This person’s device is bending.
这个人的装置没弯折 This person’s device is not bending.
这个嵌板没被点亮 The panel is not lighting up.
加油啊 全部点亮 Go, go! Light 'em up!
虽然亮度不同 但是所有的嵌板都点亮了 Although not all with the same brightness, all of the panels are lit up.
如果所有人同时踩踏 If everyone stomps at the same time,
嵌板会被同时点亮吗 wouldn’t the panels light up simultaneously?
好主意 按这个节奏踩踏 Good idea! Stomp to the rhythm!
虽然一些嵌板比另一些要亮 Although some of the panels are lit up brighter than other ones,
但是它们同时亮起来了 they are lighting up at the same time!
活动幅度大 灯泡就会更亮 Since the movement of the motion is big, the bulbs light up brighter.
比起抖腿 踩踏需要动作更大 When compared to leg shaking, the leg stomp, which
使得灯泡更亮 requires a bigger motion, gets the bulbs to light up brighter.
电压装置能把能量转为电能 Piezoelectric devices can turn energy into electricity.
使用这种装置 我们从抖腿中获得电能 By using them, we made electricity from leg shaking.
在这个实验中 一百个人能用这种装置 In this experiment, we were able to use this device
点亮一万个小灯 to light up ten thousand LEDs with 100 people.
实验进行了六个小时 6 hours have passed since the start of the experiment.
由于过量的抖腿 他们都很疲惫了 They’re tired…from excessive leg shaking!
放轻松些 Oh! Take it easy guys!
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