Who's up for a challenge?
谁来迎接挑战？
Squeaks and I love to build things.
我和吱吱喜欢建东西ko&G3f;t;hFGrfKFye*。
Sometimes we build forts out of pillows... or castles out of blocks...
我们有时用枕头建堡垒，有时用积木建城堡...
and sometimes we snap together plastic bricks and make spaceships!
有时把塑料砖组合起来制作飞船！
But, today we're going to use cups. Yup, just cups!
但今天我们要用杯子CO@fO(~[vPe。对，就是杯子！
And Squeaks and I have decided to build the tallest stack of cups that we can.
我和吱吱已经决定建造最高的叠杯了gT03NmQtCQ,#519l5AQ。
We know from playing with blocks, that it's best to build our stack on a flat, hard surface...
我们从玩积木中知道，建叠杯最好是在平坦坚硬的表面...
like a piece of floor that doesn't have any carpet on it.
比如一块没有地毯的地板就行Lg~[fJ8~,-=!REo。
And to make things easier, we're going to use cups that are all the same size.
为了更简单些，我们使用型号相同的杯子@XPdjl,rNMJ。
And, we're going to use plastic cups.
我们使用的是塑料杯1%5r342O;XT@ptfZ。
Paper cups work too...but just never glass.
纸杯也行，但不要用玻璃杯,.cJ[dt!*wUJCL%E。
Alright, Squeaks. Let the cup stacking begin!
好了，吱吱，我们开始叠杯子吧！
First, we'll start by putting a cup upside down on our table.
首先，我们要把一个杯子倒扣在桌子上GQl0)Yc4ZI-MauBaAQ@。
You can use the floor or a table at home.
你可以利用地板或家里的桌子P5=|@zvD|%a.bu。
Next, we'll put another cup on top.
接下来，把另一个杯子放在它的顶部T~0r,fPlM0@6XN5k。
We'll need to put this one right-side up, so it doesn't slide down on top of the first one.
我们要把这个杯子正放，这样它就不会从第一个上面滑下来了I_6=sgCWQ.。
Now, we'll carefully set another cup, cup number three, upside down on top of number two.
现在，我们开始小心地放第三个杯子，倒扣在第二个的顶部tRHonpfGZHTPMUSRo1_P。
Cup four goes on top, right side up.
第四个杯子正放在其顶部N9*=|Q0JWov+。
Hmm, things are getting little wobbly.
嗯...杯子越来越不稳定了dC~n)0w;un0Hg*h。
And cup number five goes on...successfully!
放第五个杯子...成功！
Now, let's see if we can put cup number six on top... down it goes!
现在，我们看看能不能放第六个杯子...它倒了！
So, by making a simple stack of cups, one on top of the other,
所以，通过一个接一个地简单叠杯子，
we were able to build a tower that was five cups high.... before it fell over.
我们在它倒之前只能建造一个五层杯子高的塔!IlSsw(aBFRCgnxPrehN。

But what can we do to build a tower that's even taller?
但我们怎么才能把塔建得更高呢？
We'll need to find a way to make our stack of cups more stable.
我们需要找一个更稳固的叠杯方法=Vsxu,DcUMihC+V]k。
If our stack of cups is stable, that means it won't wobble and sway like our last stack did,
如果我们的叠杯稳固，它就不会像上次那样摇摆不定了，
so it shouldn't fall over as easily!
也不会轻易地倒下！
So this time, let's try something different.
所以这次我们试试不同的方法4rZ;nU[r[bt4tM。
Let's start with three cups, upside down on the table.
我们开始把三个杯子倒扣在桌子上kfG=kG~QqB*^。
Now we'll put two cups also upside down on top of those...and we'll put one more cup on the top.
现在把两个杯子倒扣在它们顶部...再把另一个杯子放在其顶部_Fo.H4*Y!p&,。
Look, we made a pyramid!
看，我们做了一个金字塔！
This stack is one...two...three cups tall.
这个叠杯有三层杯子高W]_!dLwQB,p%*I8^。
Do you see how our pyramid of cups is shaped like a triangle?
你知道我们的杯子是怎样形成一个三角形的吗？
It has a big, wide base, or bottom.
它有一个宽大的基座或底部_LKE_+8tWzQag。
That wide base is a reason that a pyramid...and our second stack of cups...is so stable.
这个宽基座就是金字塔或我们的二层叠杯如此稳固的原因~gI~kB5pH3q@RX。
You can test this out for yourself.
你自己可以试验ter|CeU%i(7d)!XAG。
But not just with cups. With you!
但不是用杯子，而是你自己^;&q88]r5~Q。
Stand up for a minute! Now, try to stand on one foot.
站一分钟！现在试着单脚站立lUu3K8#sCbWR5=0。
Do you wobble back and forth a little?
你会来回摇晃吗？
Now try standing on both feet.
现在试着双脚站立jA_;@ZSWeI(d。
It's probably easier to stand on two feet, right?
这样更简单，不是吗？
That's because two feet make a wider base than one foot.
这是因为双脚的底部比单脚更宽,52*TeK~sY(XA;。
Your weight is spread out between both feet instead of being all on one foot.
你的重量压在双脚而不是全部压在单脚上cTGcpC.qsv2mwQV&+IH-。
The same thing is true when you're building something, whether it's a stack of plastic cups, or a big-city skyscraper!
你建造东西时也一样，不管是叠塑料杯还是建造大城市的摩天大楼！
In our first tower, the weight of the stack was on the one cup on the bottom.
在我们的第一个塔中，杯子的重量全在底部的一个杯子上9JOVQXS]Vw@n]V。
But in our second try, the weight of the stack pushed down on three cups that were spread apart, instead of one.
但在第二次尝试中，杯子的重量平摊到了三个杯子、而不是一个杯子上cg.*#k.4=6T!L;&gw(9Q。
A wide base helps to spread out the weight of what's on top of it, and makes whatever you're building more stable.
一个宽基座有助于平摊顶部的重量，使你建的东西更稳固&C(-ka1v5Lb。
So let's try one more building using an even wider base.
所以我们试试另一个，使用更宽的基座Y[*AR-dI[*7oQ3]。
We'll put one, two, three, four, five cups on the table.
我们把1、2、3、4、5个杯子放在桌子上jg@2T|Ts[a3yEtsFLx。
Then, we'll pile four more on those...then three...then two...and that one on top.
然后再在上面放四个...然后是三个...然后是两个...最后顶上放一个R@E,BJ4F6(Al0。
This time our pyramid is five cups high!
这次我们的金字塔有五层杯子高！
In fact...if we start with even more cups on the bottom of our pyramid, you can build even higher!
事实上，如果金字塔底部的杯子更多的话，你建得更高！
That wider base makes it possible to build a taller structure.
更宽的基底使构建更高的结构成为可能,*9^EJc~9+uEFy6Oa!@!。
A wide base is useful for more than just stacking cups.
宽底座不仅仅有助于叠杯子,C;(D_*VWy7wnr&P。
Some of the most stable buildings in the world are shaped like pyramids.
世界上一些最稳定的建筑物形状都像金字塔]CJznf@qAd。
This building is one of the tallest in San Francisco...and is stable enough to stay up during an earthquake.
这座建筑是旧金山最高的建筑之一，它在地震中都稳如泰山OlOx#_xW6*WV#。
So, are you excited to build your own stack of cups?
那么，你自己叠杯子了，兴奋吗？
Ask a grownup to help you find some cups...and you're ready to get stacking!
让大人帮忙找些杯子，你准备开始叠吧！
Thanks for joining me on SciShow Kids!
感谢您收看本期的儿童科学秀！
Do you have a question for us about buildings...or anything else?
你有关于建筑或其他要问我们的吗？
If you do, ask someone to help you leave a comment down below or to send an email to kids@scischow.com!
如果有，找人帮忙在下方留言，或发邮件至kids@scischow.com！
Thanks, we'll see you next time, here the Fort.
感谢您的收看，我们下期见，沃斯堡等你哦！