AnnMarieThomas_2011[安玛丽.托马斯][用柔软的电路来亲身实践科学].pdf

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1、www.XiYuS锡育软件Im a huge believer in hands-on education.我是亲自实践教育的忠实拥护者。00:12But you have to have the right tools.但必须有合适的工具。00:16If Im going to teach my daughter about electronics,Im notgoing to give her a soldering iron.如果我准备教我女儿电子学,我不会给她一个烙铁。00:18And similarly,she finds prototyping boards really frus

2、tratingfor her little hands.同样地,她发现模型 确实让她的小手觉得挫折。00:23So my wonderful student Sam and I decided to look at themost tangible thing we could think of:Play-Doh.因此我的好学生山姆和我 决定看看我们能想到的最切实的东西,橡皮泥。00:28And so we spent a summer looking at different Play-Dohrecipes.我们花了一个夏天来 考察各种不同的橡皮泥制作配方。00:35And these re

3、cipes probably look really familiar to any of youwho have made homemade play-dough-pretty standardingredients you probably have in your kitchen.这些配方看起来非常相似 在座各位都可以在家中制作橡皮泥-就用各位的厨房里大概都有的相当普通的佐料。00:39We have two favorite recipes-one that has theseingredients and a second that had sugar instead of salt

4、.我们有两个最喜欢的配方-一个包含这些成分 第二个的配方中用的是糖而不是盐。00:46believer:n.信徒;相信.者 hands-on:adj.亲身实践的,亲自动手的 electronics:n.电子学;电子工业 soldering:n.焊接;焊料;焊接处/adj.用于焊接的/v.焊接;使联合;修补(solder的ing形式)frustrating:adj.令人沮丧的/v.使沮丧(frustrate的ing形式)atthe most:至多,不超过 tangible:adj.有形的;切实的;可触摸的/n.有形资产 recipes:食谱/方法 ingredients:材料;作料And the

5、yre great.We can make great little sculptures withthese.它们非常棒。我们能用这些做出很棒的小雕塑。00:52But the really cool thing about them is when we put themtogether.当我们把它们放在一起,真正酷的事发生了。00:55You see that really salty Play-Doh?这是咸的橡皮泥,00:58Well,it conducts electricity.它能导电。01:00And this is nothing new.这不是什么新鲜事儿。01:02It

6、 turns out that regular Play-Doh that you buy at the storeconducts electricity,and high school physics teachers haveused that for years.其实在商店里购买的正规的橡皮泥都能导电,高中物理老师已经使用了很多年了。01:04But our homemade play-dough actually has half theresistance of commercial Play-Doh.但我们自制的橡皮泥 实际上只有市场上橡皮泥电阻的一半。01:09And that

7、 sugar dough?那个糖橡皮泥呢？01:13Well its 150 times more resistant to electric current than thatsalt dough.它的电阻是咸橡皮泥的 150倍。01:15So what does that mean?那么,这意味着什么？01:19Well it means if you them together you suddenly havecircuits-circuits that the most creative,tiny,little hands canbuild on their own.这意味着把它们放

8、在一起,突然间你就有了电路-可以由富有创造力的小手们制作而成 的电路。01:21sculptures:n.建雕塑(sculpture的复数);雕像/v.雕刻;用雕塑装饰(sculpture的第三人称单数)salty:adj.咸的;含盐的conducts:vi.导电;带领/vt.管理;引导;表现/n.进行;行为;实施 dough:n.生面团;金钱 build on:依赖,依靠;建立于;把建立于;以为基础(Applause)And so I want to do a little demo for you.（掌声）那么我来为你们做个小小的演示。01:30So if I take this salt

9、 dough,again,its like the play-dough youprobably made as kids,and I plug it in-its a two-leadbattery pack,simple battery pack,you can buy them atRadio Shack and pretty much anywhere else-we canactually then light things up.如果我拿着这个咸橡皮泥-再说一次,这就像是各位在孩童时期玩的橡皮泥-我把它插入-这是一个双极式铅蓄电池,普通的电池-可以在RadioShack买到 几乎任

10、何地方都有卖-我们能让 灯亮起来。01:39But if any of you have studied electrical engineering,we canalso create a short circuit.但如果你们中有人学过电气工程的话,我们也可以做出个短路来。01:59If I push these together,the light turns off.如果我把它们放在一起,灯就灭了。02:03Right,the current wants to run through the play-dough,notthrough that LED.是的,电流会通过橡皮泥,而不是通

11、过那个LED灯。02:06If I separate them again,I have some light.如果我分开它们,灯就亮了。02:08TED演讲者：AnnMarie Thomas|安玛丽.托马斯演讲标题：AnnMarie Thomas:Hands-on science with squishy circuits|用柔软的电路来亲身实践科学内容概要：AnnMarie Thomas works on the playful side of engineering-using cool tools toteach and help others.在TED U的一场充满活力的演示中，安玛

12、丽.托马斯展示了两种不同风格的自制橡皮泥，这些橡皮泥能用于演示电气性能-通过点亮LED灯，让马达旋转，这把小孩子们变成了电路设计师。Well now if I take that sugar dough,the sugar dough doesntwant to conduct electricity.现在,如果我用糖橡皮泥,糖橡皮泥并不导电。02:10Its like a wall to the electricity.它像是一堵阻挡电流通过的墙。02:14If I place that between,now all the dough is touching,but if Istick

13、that light back in,I have light.如果我把它放在中间,所有的橡皮泥都接触在一起,但如果我把灯插回去,灯亮了。02:16In fact,I could even add some movement to my sculptures.实际上,我甚至能在我的雕塑上加些运动的部件。02:23Shack:n.棚屋;小室/vi.居住 run through:跑着穿过;浏览;刺;挥霍If I want a spinning tail,lets grab a motor,put some play-dough on it,stick it on and we have spinn

14、ing.如果想要个旋转的尾巴,就找个马达来,在上面放些橡皮泥,插上去,就会开始旋转了。02:26(Applause)And once you have the basics,we can make aslightly more complicated circuit.（掌声）一旦有了这些基础,我们就能制作一个稍微复杂些的电路了。02:33We call this our sushi circuit.Its very popular with kids.我们称这个为寿司电路。它非常受孩子们的欢迎。02:41I plug in again the power to it.我把电源插上去。02:44

15、And now I can start talking about parallel and series circuits.现在我可以开始讲讲并联和串联电路了。02:47I can start plugging in lots of lights.我能插上很多灯泡。02:50And we can start talking about things like electrical load.我们也能开始谈谈像电力负荷这类事情了。02:55What happens if I put in lots of lights and then add a motor?如果我放上许多的灯泡 然后再加上一

16、个马达,会怎样？02:58Itll dim.灯变暗了。03:02We can even add microprocessors and have this as an inputand create squishy sound music that weve done.我们甚至能加入微处理器 用这个作为输入 并创造出轻柔的音乐,我们曾这么做过。03:04You could do parallel and series circuits for kids using this.可以让孩子们用这个来做 并联或串联电路。03:12spinning:n.纺纱/adj.纺织的/v.旋转,纺织(spin的

17、现在分词)grab:vt.攫取;霸占;将深深吸引/vi.攫取;夺取/n.攫取;霸占;夺取之物 sushi:n.寿司(生鱼片冷饭团)plugging:n.堵塞;(用木塞)堵漏/v.堵;塞(plug的ing形式)dim:adj.暗淡的,昏暗的;模糊的,看不清的;悲观的,怀疑的/vt.使暗淡,使失去光泽;使变模糊/vi.变模糊,变暗淡/n.笨蛋,傻子 microprocessors:n.计微处理器(microprocessor的复数);计微处理机 squishy:adj.粘糊糊的;湿软的So this is all in your home kitchen.这些在家里的厨房中就能做到。03:17We

18、ve actually tried to turn it into an electrical engineeringlab.实际上我们尝试过把它变成一个电气工程实验室。03:20We have a website,its all there.These are the home recipes.我们有个网站,上面什么都有。这些是配方。03:23Weve got some videos.You can make them yourselves.我们还有些视频。大家可以自己制作它们。03:26And its been really fun since we put them up to see

19、wherethese have gone.因为把这些东西制作出来并看着它们成功运行,实在是很有趣。03:28Weve had a mom in Utah who used them with her kids,to ascience researcher in the U.K.,and curriculum developers inHawaii.在犹他州有位母亲,与她的孩子们一起玩这些橡皮泥,她的孩子成了英国的科学研究员 并在夏威夷开发新课程。03:31So I would encourage you all to grab some Play-Doh,grabsome salt,grab

20、some sugar and start playing.因此我鼓励各位都抓把橡皮泥,抓些盐,抓些糖,开始玩儿吧。03:38We dont usually think of our kitchen as an electricalengineering lab or little kids as circuit designers,but maybewe should.我们并不常把我们的厨房想象成电气工程实验室或把小孩子们想象成电路设计师,但也许我们应该这么做。03:43Have fun.Thank you.玩得开心。谢谢03:50(Applause)（掌声）03:52curriculum:n.课程/总课程 developers:n.开发商;发展者;摄显影剂(developer的复数)*Warning:本文是由生成导出，请用于个人学习，不要用于商业用途。否则，导致的一切法律后果，均由您个人承担，锡育软件概不负责。*