Placeholder Image

字幕列表 影片播放

  • Hey it's me Destin, welcome back to Smarter Every Day.

    嗨!我是 Destin。歡迎收看《Smarter Every Day》(聰明每一天)!

  • So today we're in the rocket van and I've got two little science helpers here right?

    今天我們坐在大車裡,與我的兩位科學小幫手在一起,對不對?

  • Kids: Yes, right.

    孩子們:對!

  • Are you wearing your seatbelts?

    系好安全帶了嗎?

  • Yes.

    系好了。

  • OK we're gonna do something pretty interesting. Check this out.

    OK 接下來我們要做的很有意思。聽好了:

  • I've got a pendulum suspended from the top of our family van

    我從我們家車頂上懸掛了一個單擺

  • and we're just gonna drive forward, we're gonna accelerate,

    然後我們往前開,往前加速

  • so if we're going that way, which direction do you think this pendulum should go? What do you think?

    如果我們往那邊開,這個擺會往哪邊偏呢?你認為呢?

  • 3.. 2.. 1.. Go.

    三……二……一……開!

  • Kids: Yes.

    孩子們:好了!

  • Which way is it going?

    擺往哪邊偏了?

  • Kids: My way.

    孩子們:我這邊。

  • That's right. It's because I'm accelerating right?

    這就對了,是因為我在加速,對不對?

  • Does that make sense to you guys?

    這有沒有道理?

  • Yes sir.

    有道理!

  • OK very good, I was hoping it would make sense.

    OK 棒極了,我是希望這很明白的。

  • So we're gonna change it up just a little bit.

    好,現在我們來換它一換。

  • OK so now what I'm gonna do is I'm gonna replace this pendulum with a balloon.

    OK 現在我要做的是把這個擺換成氣球。

  • We should see the same thing right? Let me cut this off.

    我們應該看到同樣的結果,對吧?我來把這個繩子割斷。

  • So what we're gonna do is we're gonna accelerate that way

    好,我們現在要做的是向那邊加速。

  • so we have the mass of the balloon and the acceleration that should net in a force and will have to react with this string right?

    氣球有質量,由於加速度應該會產生一個力,作用在這根繩子上,對不對?

  • You guys ready?

    準備好了嗎?

  • Yes sir.

    準備好了!

  • 3.. 2.. 1.. Go.

    三……二……一……開!

  • Wait a second. What just happened?

    哎,等等!怎麼回事?

  • What happens when I stop?

    如果我停下呢?

  • The balloon goes backwards when I stop.

    我停下,氣球反而朝後跑!

  • What's happening?

    這是怎麼回事?

  • 3.. 2.. 1..Go.

    三……二……一……開!

  • There it is. It's coming right at me.

    看看,氣球直衝我來呢!

  • Why's it doing that?

    怎麼會這樣呢?

  • Do you wanna know?

    想知道嗎?

  • Yeah.

    想!

  • Alright, I brought something to show you.

    好的,我帶了樣東西給你們看。

  • You remember I told you I was gonna bring this jar earlier? Remember that?

    記得我說過要帶這個玻璃罐​​子嗎?記不記得?

  • So it's like this. Imagine this entire van is just like this jar,

    是這樣的。想像這整輛車就是這個罐子,

  • and all the air inside this van is just like the water in the jar. Does that make sense?

    車子裡的空氣就像罐子裡的水。明白嗎?

  • So let's imagine that the balloon is this bubble on top,

    現在想像氣球就是水里浮著的這個氣泡,

  • because the helium in the balloon is lighter than air right?

    因為氣球裡的氦氣要比空氣輕,對不對?

  • So that causes it to do what?

    所以這會讓氣球怎麼樣?

  • Kids: Go up.

    孩子們:浮起來。

  • Go up, that's right.

    浮起來,對了。

  • So if I've got this air that's just like it, what happens if I move the jar that way?

    那麼如果空氣跟​​這個一樣,我把罐子往那邊移會怎麼樣?

  • All that water sloshes to the back.

    所有的水會朝後涌。

  • And when that water sloshes back this way, which direction does the bubble go?

    那麼如果水往這邊涌,氣泡會往哪邊跑?

  • You see that? So the air bubble moves in the direction of acceleration,

    明白了嗎?氣泡朝加速度的方向移動,

  • does that make sense?

    有沒有道理?

  • I know you're five but I think you can get this.

    我知道你們才五歲,不過我想你們能明白。

  • OK so I've got my seatbelt on. If I drive forward real fast right now which direction is the balloon gonna go?

    OK 我系好安全帶了。如果我現在往前開得很快,氣球會往哪邊跑?

  • Forward.

    往前。

  • Why will it go forward?

    為什麼往前呢?

  • Because all the air's sloshing back.

    因為所有的空氣都往後涌了。

  • That's right! Very good! Watch this.

    對了!真棒!看好了。

  • Look at that. You see that?

    看哪,看到了嗎?

  • So you know what that means don't you?

    你們知道這意味著什麼,對不對?

  • That means you have more air to breathe than daddy does when I'm going fast.

    這意味著車開快時你們比爸爸有更多的空氣呼吸。

  • Did you realise that?

    意識到了這點了嗎?

  • Kids: Nooo!

    孩子們:沒有呢!

  • Yeah that means when I go fast, that means more air sloshes back there to you and you have more oxygen to breathe.

    對呀,這意味着車開快時,更多的空氣朝你們後邊涌去,所以你們有更多的氧氣來呼吸。

  • Doesn't it feel good back there?

    坐在後面的感覺很好吧?

  • OK so now we have the plumb bob right next to the balloon, so if I go forward they should spread apart right?

    OK 現在我們把鉛錘掛在氣球的旁邊,那麼如果我們往前開他們應該分開,對不對?

  • Let's check it out.

    我們試試看。

  • Is it working?

    是這樣嗎?

  • Kids: Yeah.

    孩子們:是!

  • So what I want to do is I want to tell everybody on Smarter Every Day that if they go download

    現在我要做的是告訴看《Smarter Every Day》的各位觀眾如果他們去下載

  • a free audio book that it'll help Smarter Every Day by sponsoring us.

    一部免費的有聲書就能夠通過贊助《Smarter Every Day》來幫助我們。

  • Audible will, if they go to audible.com/smarter.

    Audible 會贊助我們,如果他們訪問 audible.com/smarter。

  • And so they get a free audio book, but I'm gonna do it in a funny way.

    他們能得到一部免費的有聲書,不過我要搞笑一點。

  • Now lean in towards me and look straight at the camera.

    湊到我這來,眼睛看攝像機。

  • I know you don't know what I'm gonna do but don't laugh

    我知道你們不知道我要幹什麼,但是別笑

  • because I want people to realize that they can send you to school if they get a audio book.

    因為我要讓大家意識到下載有聲書可以幫助送你們去上大學。

  • Does that make sense?

    明白嗎?

  • Yeah.

    明白。

  • So whatever happens don't laugh. OK?

    不管發生什麼不要笑,好嗎?

  • Look straight at the camera. Ready?

    往攝像機裡看。預備——

  • You don't know what I'm doing, do you?

    你們不知道我要幹什麼吧?

  • OK you ready?

    OK 準備好了嗎?

  • (High pitched helium voice) Thank you for supporting Smarter Every Day and if you would please download an audio book at audible.com/smarter.

    (氦氣高音聲)感謝您支持《Smarter Every Day》!在此拜託您到 audible.com/smarter 下載一部有聲書。

  • Did you know daddy could talk like this?

    你們不知道爸爸還會這樣講話吧?

  • No.

    不知道。

  • You didn't know that happened, did you?

    你們不知道這是怎麼回事吧?

  • So if you go get a free audio book it'll support Smarter Every Day and it'll help me send these kids to school.

    對,如果您去下載一部免費的有聲書就能夠支持《Smarter Every Day》並且幫助我送孩子們上大學。

  • Does that sound like a good idea?

    聽上去是個好主意吧?

  • Yes.

    是的。

  • You should never do that, by the way. That's only for adults.

    你們可千萬別學我這麼幹。只有大人才行。

  • How'd you do that?

    你怎麼做到的呀?

  • It's magical. Anyway I'm Destin, you're getting Smarter Every Day.

    魔術嘛!我是 Destin,您剛剛收看的是《Smarter Every Day》。

  • Please subscribe to Smarter Every Day and support our sponsor audible,

    敬請訂閱《Smarter Every Day》,還有支持贊助我們的聲音。

  • I'll leave a link somewhere and you can check it out.

    我會在某處留個鏈接,方便您點擊。

  • Thanks, bye.

    多謝了,再見!

  • How'd you change your voice?

    你怎麼會變聲音的呀?

  • OK now we have the sunroof, the side window and the back open.

    OK 現在我們打開了天窗,側窗和後蓋。

  • I'm gonna go forward, where do you think it's gonna go?

    我現在往前開,你們覺得氣球會往哪邊跑?

  • Daughter: Forward.

    女兒:前面。

  • Son: Backwards.

    兒子:後面。

  • 3.. 2.. 1..

    三……二……一……

  • Dad: So this is air, not helium?

    父親:這是空氣,不是氦氣吧?

  • Yes sir.

    是的,父親。

  • OK I think it's gonna act like the pendulum.

    OK 我覺得它會像那個擺一樣。

  • Dad: 3.. 2.. 1.. Go.

    父親:三……二……一……開!

  • (laughs) Backwards.

    (笑)掛成倒擋了!

  • Oh it does. We're gonna use that one.

    哦,果真如此,我們就用這次錄的吧。

Hey it's me Destin, welcome back to Smarter Every Day.

嗨!我是 Destin。歡迎收看《Smarter Every Day》(聰明每一天)!

字幕與單字

單字即點即查 點擊單字可以查詢單字解釋