视频文本

Here's your milk
这是你的牛奶
Wait a minute, Barry
等等 Barry
That was my 15-dollar Cabernet
我15美元的解百纳
and it just turned into a glass of milk
就这样变成一杯牛奶了
So Dr. Dolhun wants milk for his cookies
Dolhun博士想用牛奶搭配饼干
but all he has is wine
但他只有葡萄酒
So to go from wine to milk
为了从葡萄酒得到牛奶
Barry pours the wine into another glass
Barry将葡萄酒倒入另一个玻璃杯
This glass contains barium chloride
这个杯子里装有氯化钡
and barium chloride dissolves in water forming barium 2+ and 2Cl-
氯化钡会溶解于水，形成Ba2+和2Cl-
Now barium 2+ reacts with the carbonate ions in the original solution
Ba2+会同原溶液中的碳酸根离子反应
to produce barium carbonate
生成碳酸钡
which is a solid white precipitate
这是一种白色固体沉淀
And of course the solid white precipitate makes it look like milk
正是这种白色固体沉淀让溶液看起来像牛奶
but is Dr. Dolhun satisfied with milk?
但Dolhun博士满足于牛奶吗
Let's find out
我们看看
That was my 15-dollar Cabernet
我15美元的解百纳
and it just turned into a glass of milk
就这样变成一杯牛奶了
Oh, sorry about that, I thought you would want milk
哦，抱歉，我以为你想要牛奶
Barry, it's a bad deal Barry
这太不划算了
Is this milk organic?
这种牛奶是有机的吗
Uh, no
呃，不是
Barry, come on, you have to do something Barry
这可不行，你得做点什么
OK, how about this? I'll treat you...
好，这个怎么样
I'll give you some beer. It's on the house
我为你提供一些免费啤酒
Beer?
啤酒吗
Yeah, as a little substitute low-paid return for messing up your order
对，作为之前过失的一点小小补偿
So just take that from me here
尝尝这个
That is nice
这很不错
A beer with a frothy top on it
一杯起泡的啤酒
Very good, Barry
很好 Barry
Enjoy it
慢用
Finally, Barry turns the milk into beer
最终 Barry将牛奶变成了啤酒
To do this, he adds some hydrochloric acid to the mix
为了做到这个，他往混合物中加了一些盐酸
Now this dissolves the barium carbonate, the solid white precipitate
盐酸会溶解碳酸钡这种白色沉淀
And this is the reaction
反应是这样的
So he adds the hydrochloric acid which
他加入了盐酸
breaks apart the barium carbonate solid
分解了碳酸钡沉淀
This yields barium, water and carbon dioxide gases released
这会生成钡离子，水和二氧化碳作为气体逸出
And this H plus in the reaction comes from the hydrochloric acid
而这里反应中的H+来自盐酸
To get the yellow beer color
为了得到黄色啤酒颜色
Barry throws in some dye chromate which is yellow
Barry还加入了黄色染料铬酸盐
and he puts a lump of solid carbon dioxide
他还加入了一块固体二氧化碳
or dry ice in it to make it bubble
也就是干冰，让溶液起泡
So did Dr. Dolhun and Barry show us today?
回顾一下Dolhun博士和Barry今天所演示的内容
They took a clear solution with certain chemicals in it
他们使用了一种无色透明液体，其中具有特定化学物质
that turns color pink when another chemical is added
加入另一种化学物质后，颜色变为粉红色
then goes milky when another chemical is added
之后加入另一种化学物质后，变为牛奶状
then goes clear again when another is added and then
之后加入另一种化学物质后，变得澄清
goes yellow and bubbles when two more chemicals are added
之后再加入两种化学物质后，溶液变成黄色并起泡
This shows us how chemistry can be used to program a system
这让我们了解到，化学能够被用于设计一个系统
to take on different observable properties
来得到不同的观测性质
It's truly magical
真的很神奇
That's it for me. Hope you enjoyed the magic
就到这里，但愿大家喜欢这种神奇的化学

视频及简介

视频简介：

魔术背后的化学系列视频展示了一些化学实验演示，这些化学实验都非常精彩有趣，创造出各种蒸汽、响声、闪光等引人注目的效果。视频中详细解释了实验背后的科学知识，通俗易懂，寓教于乐。