something out that I've always wondered. What happens when you shoot a pistol

東西出來，我'一直想知道。當你拍攝的手槍會發生什麼

underwater. I think revolvers are gonna act a little different than semi-automatic pistols.

在水下。我認為左輪手槍的行為會和半自動手槍有些不同。

[music]

[音樂]

Alright, here we are in the field, this is the setup. So what we have here is a revolver

好了，我們在這裡的現場，這是設置。所以，我們有什麼在這裡是一個左輪手槍。

in an aquarium that we made out of plate glass and silicone. This should be

在我們用平板玻璃和硅膠製作的水族箱中。這應該是

pretty cool, but we're gonna film this with this Phantom v10

相當酷，但我們要去拍攝這個與這個Phantom V10的

camera made by Vision Research. We're gonna film it at 2200 frames per second.

視覺研究公司製造的相機。我們要以每秒2200幀的速度拍攝。

We've got about a 40 microsecond exposure time. But in order to get enough light we have to

我們'有大約40微秒的曝光時間。但為了獲得足夠的光線，我們必須

use this, which is a 15 million candle power spotlight.

用這個，這是一個1500萬燭力的射燈。

This should be pretty cool, but the intent here is we're gonna fill this up with water

這應該是很酷的，但這裡的意圖是我們'要去填補這個水。

over the pistol, and we're gonna see if we can capture that gas bubble as it comes between

在手槍上，我們'要去看看，如果我們能捕捉到氣泡，因為它之間的到來

the revolver and the barrel. It should expand, and hopefully not blow up.

左輪手槍和槍管。它應該會膨脹，希望不會爆炸。

But I'm expecting this to blow up. And immediately after we capture all that

但我期待這一切都會被炸燬。在我們抓到所有的東西之後 And immediately after we capture all that

video we're gonna compress it into a pretty small format and then we're gonna

視頻，我們要去壓縮成一個相當小的格式，然後我們'會

beam it via this satellite dish straight to the 80s so that my granddad can.. I'm just kidding.

通過這個衛星天線傳輸它 直接到80年代，所以我的爺爺可以. .我只是在開玩笑。

Anyway, let's do the shot.

總之，讓我們'拍吧。

[music]

[音樂]

Do I look as sad as I feel? [laugh]

我看起來和我的感覺一樣悲傷嗎？[笑]

Or maybe nervous? I really don't want this to blow up

或者是緊張？我真的不希望這一切被炸燬

because I don't have money to buy it again if it does, so...

因為我沒錢再買，如果買了，所以......。

I'm doing this so you can learn. You don't have to blow your pistol up.

我這樣做是為了讓你學習。你不必把你的手槍炸燬。

[music]

[音樂]

Alright, let's see if she lived. I really hope so.

好吧，讓我們看看她是否還活著。我真的希望如此。

3..2..1.. [bang]

3..2..1.....1... [砰]

Yay Ruger. Alright so now let's talk about the results.

Yay Ruger。好了，現在讓我們談談結果。

To my knowledge this is the first time handguns have been studied like this, and there's

據我所知，這是第一次手槍被這樣研究，而且有'。

obviously a lot of stuff to learn here but I'll focus on three things that are pretty simple.

顯然這裡有很多東西需要學習，但我'將專注於三件事，這是非常簡單的。

The first thing is, it was pretty clear that as soon as the hammer

第一件事是，很明顯，一錘定音。

struck the firing pin which hit the primer, there was an outgassing, you could

撞上撞針，撞上了底火，就會產生氣體，你可以...

actually see a bubble. It's pretty interesting. My assumption is that

實際上看到了一個保麗龍。這'很有趣。我的假設是

that's the seal around the primer breaking down and causing a little outgassing.

那是底漆周圍的密封圈壞掉了，造成了一些氣體外洩。

Nothing really new there. The second thing that we learned is it appears that

沒有什麼新的東西。我們瞭解到的第二件事是，似乎...

the semi-automatic pistol is more efficient at applying the gases generated by the cartridge

半自動手槍更有效地應用彈殼產生的氣體。

to the back of the bullet creating more velocity than the revolver.

到子彈的背面，產生比左輪手槍更大的速度。

You noticed when the revolver fired there was this large blast wave

你注意到當左輪手槍發射時，有一個很大的爆炸波。

that came out from between the revolver cylinder and the barrel. All that is

從左輪手槍槍筒和槍管之間出來的。所有這些

wasted energy that could be applied to increasing the velocity of the round, which wasn't.

浪費的能量，可以應用於提高子彈的速度，這不是'。

So that was also pretty interesting. The next thing that we learned

所以這也是相當有趣的。接下來的事情，我們瞭解到

is when the weapon is fired, you see this large blast

是當武器被髮射，你會看到這個大爆炸

wave come out the front of the weapon. Now the assumption is, or at least the assumption

波出來的武器的前面。現在的假設是，或者至少是這樣的假設

I made to begin with is that it's a spherical blast wave. It's actually

我一開始做的是，它'是一個球形的衝擊波。其實

not. It's more like a bagel or doughnut.

不。它更像一個百吉餅或甜甜圈。

It's what's called a toroidal vortex. Root word being

它'就是所謂的環形漩渦。根詞是

torus. So if you were to take this

環形山。所以，如果你要把這個

and... let me draw this... alright.

還有... 讓我來畫這個... 好吧。

So this is kinda what's happening here. The gases are coming out

所以這就是這裡發生的事情。這些氣體都出來了

from the barrel, and they're going in a loop around

從桶，和他們'要在周圍的循環。

the outside of the bullet. Toroidal vortex, that's what's going on there.

子彈的外部。環形渦旋，那是什麼'那裡的情況。

Anyway, there's a whole lot to learn here. I hope you're getting Smarter Every Day.

總之，這裡有很多東西可以學習。我希望你'每天都能變得更聰明。

Have a good one.

有一個好的。

[music]

[音樂]

[ Captions by Andrew Jackson ] captionsbyandrew.wordpress.com

[字幕由安德魯-傑克遜] captionsbyandrew.wordpress.com

Captioning in different languages welcome. Please contact Destin if you can help.

歡迎使用不同語言的字幕。如果你能幫忙，請聯繫Destin。