15,000 classes that could teach you a new life skill.

1.5萬節課，可以教你一項新的生活技能。

The first 500 people to sign up using the link in the description will get a 2 month free trial.

使用描述中的鏈接註冊的前500人將獲得2個月的免費試用。

So commonly when we think of the most valuable material in the world our minds tend to center onto gold and while gold is very

所以，通常當我們想到世界上最有價值的材料時，我們的頭腦往往會集中在黃金上，而黃金是非常的

expensive at a current value of $56 per gram, there are other materials that are significantly more expensive.

價格昂貴，目前價值為每克56元，還有其他材料的價格要高得多。

Drugs like heroin, cocaine, and LSD for example, are the most expensive drugs in the world by sheer weight,

比如海洛因、可卡因、LSD等毒品，從重量上看，是世界上最昂貴的毒品。

far more valuable than gold is. The market value for diamonds per gram is even more prohibitively expensive,

遠比黃金更有價值。每克鑽石的市場價值更是貴得離譜。

but even this is nothing compared to the most valuable material currently known to humanity:

但即使是這樣，也比不上目前人類已知的最有價值的材料。

Antimatter. So what even is antimatter? To put it simply,

反物質那麼反物質到底是什麼呢？簡單來說。

antimatter is the opposite of regular matter. Down at the atomic level,

反物質是常規物質的反面。在原子層面上。

antimatter is made up of particles and atoms just like regular matter is. The only difference is that they have an opposite electric charge.

反物質是由粒子和原子組成的，就像普通物質一樣。唯一不同的是，它們有一個相反的電荷。

Protons and antimatter are negative and called anti-protons while electrons are positive and called positrons.

質子和反物質是負的，叫反質子，而電子是正的，叫正電子。

Whenever antimatter and matter touch one another they instantly annihilate each other in a

每當反物質和物質相互接觸時，它們就會立即相互湮滅。

100% efficient release of energy. This pure energy release is why antimatter could prove to be extremely useful,

100%高效釋放能量。這種純粹的能量釋放是反物質可以被證明是非常有用的原因。

The most efficient nuclear weapons, for example, convert a mere 7% to 10% of their mass into energy while antimatter to matter collisions release

例如，最有效的核武器，僅將其品質的7%到10%轉化為能量，而反物質對物質的碰撞則會釋放出。

100% of their mass into energy.

100%的品質轉化為能量。

If you somehow were carrying one gram of antimatter about the size of a raisin and dropped it on the ground,

如果你帶著一克葡萄乾大小的反物質掉在地上。

it would create an explosion greater than both the Hiroshima and Nagasaki

它將產生比廣島和長崎更大的爆炸。

nuclear explosions combined, easily enough to destroy an entire city. Smaller scale

核爆炸結合起來，很容易就能摧毀整個城市。小規模的

assassination weapons may be more economically feasible however, like the theorized antimatter bullet, which would essentially be a regular bullet

不過，暗殺武器可能在經濟上更可行，比如理論上的反物質子彈，本質上就是一顆普通子彈。

but with a tiny 1 billionth of a gram of

但以極小的十億分之一克的。

positrons attached to the tip. Upon impact, the bullet fired from a rifle would be capable of destroying an entire house,

正電子附著在尖端。步槍發射的子彈一經擊中，就能摧毀整座房子。

tank or any other similar sized object.

坦克或任何其他類似大小的物體。

But antimatter has several other uses beyond just military ones.

但反物質除了軍事用途外，還有其他幾種用途。

Antiprotons have also been shown in several studies to have the potential to treat certain kinds of cancers and

一些研究表明，抗質子也有可能治療某些類型的癌症和。

antimatter could also be used as a fuel source for interstellar travel.

反物質也可以作為星際旅行的燃料來源。

It is conceivable that using antimatter as a fuel source could propel a rocket with humans onboard to about 50 percent

可以想象，使用反物質作為燃料源，可以將載人火箭推進到約50%的速度。

of the speed of light, which is fast enough to reach the nearest star to earth in just a little over two years

的光速，其速度足以在兩年多一點的時間內到達離地球最近的恆星。

So why haven't we created enough antimatter yet to do any of these incredible things?

那為什麼我們還沒有創造出足夠的反物質來做這些不可思議的事情呢？

The answer is because antimatter is incredibly rare, difficult to produce and prohibitively expensive currently

答案就是因為反物質非常稀少，難以生產，而且目前的價格非常昂貴。

It appears that nearly the entire observable universe is made out of regular matter and while it is possible that there could be

看來，幾乎整個可觀察到的宇宙都是由常規物質構成的，雖然有可能存在著

entire galaxies made out of antimatter, we have so far not been able to detect any.

整個星系都是由反物質構成的，我們至今還沒能探測到任何反物質。

Antimatter is produced naturally in Earth's outer atmosphere when high-energy cosmic rays impact it.

當高能宇宙射線撞擊地球時，地球的外層大氣中自然產生了反物質。

But the amount produced is tiny and lasts only

但產生的數量極少，僅能維持一段時間。

briefly before it comes into contact with regular matter and annihilates itself. The only practical means of acquiring antimatter

在它與常規物質接觸並自我湮滅之前，短暫的。獲取反物質的唯一實用手段是：

so far have been to produce

迄今為止，一直在生產

it artificially ourselves, but even this method is incredibly difficult and expensive. The Large Hadron Collider

但即使是這種方法也是非常困難和昂貴的。大型強子對撞機

operated by CERN in Switzerland, for example, one of the most expensive and complicated facilities ever built is capable of producing

例如，由歐洲核子研究中心在瑞士營運的一個有史以來最昂貴和最複雜的設施能夠生產出 "大炮"。

10,000,000 antiprotons per minute when fully operational. That sounds like a lot

全速運轉時，每分鐘有一千萬個反質子。這聽起來像很多

but it's actually a laughably tiny amount. To produce

但實際上是一個可笑的小數目。為了生產

just a single gram of antimatter at that rate of production,

只是一克反物質的生產速度。

it would take CERN roughly 100 billion years to complete. Production is only the first problem

這將需要歐洲核子研究中心大約1000億年才能完成。生產只是第一個問題

though, storing it is perhaps an even larger problem since antimatter annihilates matter

不過，由於反物質會湮滅物質，所以儲存它也許是一個更大的問題。

instantly. You can't just store it in a regular container, you have to suspend the material without it coming into contact with

瞬間。你不能只把它存放在普通的容器裡，你必須把材料懸掛起來，而不接觸到

anything and so far, CERN has only succeeded in storing antimatter atoms for a record 17 minutes before they became

到目前為止，歐洲核子研究中心只成功地存儲了反物質原子17分鐘的記錄，然後它們就變成了。

annihilated. Since just one gram is enough to obliterate an entire city, safety

殲滅。由於僅僅一克就足以摧毀整個城市，是以，安全。

precautions and storing the material and keeping it in safe hands would be of the utmost importance.

預防措施和儲存材料，並將其安全地保存在手中是最重要的。

And we're not even sure how exactly we would store such a large amount in the first place

而我們甚至不知道我們究竟是如何將這麼大的數量存儲在第一位的

Estimates on how much antimatter costs to produce varies greatly. In an article written by NASA Godard in

關於反物質生產成本的估算差異很大。美國宇航局戈達爾在一篇文章中寫到：

2006 a figure of 25 billion dollars per gram is cited while in another NASA paper written back in

2006年，美國宇航局的另一篇論文引用了每克250億美元的數字，而早在2006年，美國宇航局的另一篇論文就引用了這一數字。

1999 a figure of sixty two point five trillion dollars per gram is cited

1999年的數字是每克六十二點五萬億美元。

Which is about 83 percent of the entire global GDP just to produce one single gram.

也就是僅僅生產一克，就佔整個全球GDP的83%左右。

For reference the Manhattan Project which developed the first atomic bomb cost twenty three billion dollars adjusted for inflation

作為參考，研製第一顆原子彈的曼哈頓計劃在通貨膨脹後花費了23億美元。

And just like creating the atomic bomb did,

就像製造原子彈一樣。

creating antimatter in large quantities if ever that's possible, would open up a new Pandora's box that we couldn't close once we open it.

如果有可能的話，大量製造反物質，會打開一個新的潘多拉盒子，我們一旦打開它，就無法關閉。

We would have to live with the consequences of life in a world with abundant antimatter both positive ones and

我們將不得不生活在一個有豐富的反物質的世界裡，無論是正物質還是反物質，都要承受生活的後果

negative ones. In the meantime though if you want to watch something positive and learn something new right now

負面的。同時，如果你想看一些積極的東西，學習新的東西，現在。

Then I suggest that you check out Skillshare.com where you can watch

那我建議你去技能共享網看看，你可以在那裡看。

thousands of different

千變萬化

classes covering almost any subject that you can think of. I just recently finished writing my first book

涵蓋幾乎所有你能想到的主題的課程。我最近剛寫完我的第一本書

And I'm already working on a fiction story, so I've been finding their classes on creative writing to be incredibly useful

我已經在寫小說了 所以我發現他們的創意寫作課非常有用

You can teach yourself just about any skill online these days and

現在，你可以在網上自學任何技能，而且。

Skillshare is the perfect place to do it, their classes are professional and easy to understand that follow a clear learning

技能共享是一個完美的地方，他們的課程是專業的，易於理解，遵循一個明確的學習。

curve you could even learn the skills to create your own business like I did with Real Life Lore through easy classes for

曲線，你甚至可以像我一樣，通過簡單的課程學習創建自己的業務技能，與現實生活中的傳說，為

animation and editing. Premium memberships usually begin at $10 per month for unlimited access to all of their courses

動畫和編輯。高級會員資格通常從每月10美元開始，可以無限制地訪問其所有課程。

but the first

但第一

500 people to sign up using this link in the description will get a two month free trial in those next two months,

500人使用描述中的這個鏈接註冊，將在接下來的兩個月內獲得兩個月的免費試用。

you could easily learn the skills that you need to start your new hobby

你可以很容易地學習技能，你需要開始你的新愛好。

Or business just like I did with this channel, so think about it right now

或者像我這個管道一樣的業務，所以現在就考慮一下吧

What skill have you been putting off learning recently?

你最近一直在拖延學習什麼技能？

What idea have you been dreaming of finishing, but you aren't sure if you have the skills to do it

你有什麼想法一直夢想著要完成，但你不確定自己是否有能力去做。

Why shouldn't you start right now and sign up to skill share for free using the link below, you really have nothing to lose

你為什麼不現在就開始使用下面的鏈接免費註冊技能分享，你真的沒有什麼可失去的。

And an extremely valuable life skill to gain.

而且還能獲得極其寶貴的生活技能。