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  • Hello there.

    你好啊

  • This RealLifeLore video is made possible by Brilliant.org.

    這個RealLifeLore視頻是由Brilliant.org提供的。

  • Stay tuned for an exclusive Brilliant offer available only for RealLifeLore viewers, at the end of this video.

    敬請關注本視頻結尾處僅對RealLifeLore觀眾提供的獨家Brilliant優惠。

  • The universe is full of weird, scary, awesome, and interesting things.

    宇宙中充滿了奇怪的、可怕的、厲害的、有趣的東西。

  • I've made several videos already on topics like black holes, the size of the universe, and interstellar travel, which you can watch later.

    我已經做了好幾個視頻,主題是黑洞、宇宙的大小、星際旅行等,大家以後可以看。

  • But neutron stars and their even weirder twins called magnetars,

    但中子星和它們更奇怪的孿生兄弟叫磁星。

  • Are possibly even weirder, scarier, and more interesting than anything else I've discussed so far.

    可能比我目前所討論的任何事情都更怪異、更可怕、更有趣。

  • First, the basics.

    首先,基礎知識。

  • Neutron stars and magnetars are the same objects with one major difference.

    中子星和磁星是同一種天體,但有一個重大區別。

  • And they are born the same way

    他們也是這樣出生的

  • From the death of a large star somewhere between 10-29x the mass of our Sun.

    來自一顆大恆星的死亡,其品質在太陽品質的10-29倍之間。

  • When a star of this enormous size dies, after fusion in its core is no longer possible, the result is a brilliant supernova explosion.

    當一顆如此巨大的恆星死亡後,在其核心的核聚變不再可能,其結果就是一場輝煌的超新星爆炸。

  • The core of the star, no longer supported by the outward pressure generated by fusion, rapidly collapses from the enormous inward pressure of gravity.

    恆星的核心,不再受到核聚變產生的外壓的支撐,在巨大的引力內壓下迅速坍塌。

  • Electrons and protons are forced so close together that they fuse to become neutrons, resulting in an unimaginably dense ball made

    電子和質子被迫緊密地結合在一起,它們融合成了中子,從而形成了一個難以想象的高密度的球。

  • made almost entirely of neutrons with the mass of 1 to 2 Suns, that is only 20km across. Which is like crushing 2 entire suns down to the size of Manhattan.

    幾乎完全由中子組成的品質相當於1到2個太陽的品質,那只有20公里寬。這就好比把2個太陽壓得跟曼哈頓一樣大。

  • They're so densely packed together that just a thimble full of neutron star material would have the mass of 100 million tons.

    它們密密麻麻地擠在一起,僅僅是一個裝滿中子星材料的頂針,就有一億噸的品質。

  • Which is roughly the same as 15 Great Pyramids of Giza or 70 million Toyota Corollas all condensed into a space the size of a thimble.

    這大約相當於15座吉薩大金字塔或7000萬輛豐田卡羅拉全部濃縮在頂針大小的空間裡。

  • Neutron stars also rotate incredibly quickly after they're formed, and the quickest one ever yet to discovered is called PSR J1748-2446AD

    中子星形成後旋轉速度也非常快,目前發現的最快的一顆叫PSR J1748-2446AD

  • Which rotates 716 times every second or about 24% of the speed of light at the surface.

    每秒鐘旋轉716次,約為表面光速的24%。

  • While all of this sounds pretty extreme already,

    雖然這一切聽起來已經很極端了。

  • A small percentage of neutron stars are born as even more extreme objects called magnetars.

    有一小部分中子星天生就是更極端的天體,稱為磁星。

  • All neutron stars have incredibly powerful magnetic fields.

    所有的中子星都有不可思議的強大磁場。

  • Usually 2 trillion times more powerful than the magnetic field that you're currently experiencing on the Earth's surface.

    通常比你目前在地球表面遇到的磁場強大2萬億倍。

  • But magnetars have a magnetic field 1000 times more powerful than even that is. This makes magnetars the most powerful magnets in the known universe

    但磁星的磁場比這都要強大1000倍。這使得磁星成為已知宇宙中最強大的磁體

  • And weird things begin to happen if you get too close to one...

    如果你離得太近,奇怪的事情就會發生... ...

  • Remembering that these objects are only the size of Manhattan,

    記住,這些物體只有曼哈頓的大小。

  • if one was a distance of 160 000 km away, the magnetic field

    如果在16萬公里之外,磁力場

  • would be powerful enough to strip all the information of all the credit cards on Earth.

    將強大到足以剝奪地球上所有信用卡的所有資訊。

  • If you personally got too close to a magnetar,

    如果你本人離磁力儀太近。

  • very bad things would happen.

    會發生非常糟糕的事情。

  • If you somehow got to within 1000 km of a magnetar

    如果你以某種方式到了磁星1000公里以內。

  • The magnetic field would be so strong

    磁場會很強

  • that it would begin to warped your entire body down at the atomic level.

    它將開始扭曲你的整個身體 在原子水準。

  • Your very atoms will begin to get stretched into very thin rod-like shapes

    你的原子將開始被拉伸成非常薄的桿狀形狀。

  • which would render normal molecular chemistry impossible.

    這將使正常的分子化學變得不可能。

  • And your body would have essentially be dissolve and torn apart

    而你的身體基本上會被溶解和撕碎。

  • down to the atomic level

    深入到原子層面

  • as the atoms that make up your body would be transformed.

    因為構成你身體的原子會發生變化。

  • Magnetars can also be prone to a phenomenon known as starquakes

    磁星也容易出現星震的現象

  • which are just like earthquakes but on a star.

    這就像地震一樣,但在一個明星。

  • The crust of a magnetar made out of neutrons

    由中子構成的磁星地殼。

  • can crack just like tectonic plates do here on Earth.

    就像地球上的構造板塊一樣,可以裂開。

  • These cracks are likely only micrometers long.

    這些裂縫可能只有微米長。

  • But when they happen,

    但當他們發生。

  • the magnetar releases a truly gargantuan blast of radiation

    磁力星釋放出真正的巨大輻射衝擊波

  • that we can observe from the other side of the galaxy.

    我們可以從銀河系的另一邊觀察到的。

  • The most powerful of these starquakes ever observed

    觀測到的最強烈的星震

  • was from a magentar called SGR 1806-20,

    是來自一個叫SGR1806-20的馬根塔爾。

  • about 50 000 light years away from us.

    距離我們大約5萬光年。

  • In 2004, the radiation from the explosion caused by this starquake reached earth.

    2004年,這次星震引起的爆炸所產生的輻射到達了地球。

  • And it was the brightest event that originated outside of the Solar System

    它是太陽系外最亮的事件

  • known to have ever been witnessed by humans.

    已知曾被人類目睹。

  • It is believed to also be the largest explosion observed in our galaxy

    據信這也是我們銀河系中觀察到的最大的一次爆炸。

  • since the 1604 Supernova that was observed by Johannes Kepler.

    自1604年約翰內斯-開普勒觀測到的超新星以來。

  • In just 1/10 of a second, this starquake released more energy than the Sun

    在短短的1/10秒內,這次星震釋放的能量比太陽還多

  • has released in the past 100 000 years.

    在過去的10萬年裡,已經釋放。

  • The effects on Earth were very minor.

    對地球的影響非常小。

  • But if this had happened to a magnetar that was 10 light years away from us instead,

    但如果這一切發生在離我們10光年的磁星上,而不是。

  • the effects would be far more severe.

    影響將更為嚴重。

  • It would be enough to totally destroy the Earth's ozone layer.

    這將足以徹底破壞地球的臭氧層。

  • And also destroy most of the planet surface.

    而且還破壞了大部分的星球表面。

  • Life on Earth would almost be totally destroyed.

    地球上的生命幾乎會被完全摧毀。

  • And we would not know that it was coming until it hit us

    我們不知道它的到來,直到它擊中我們。

  • Luckily for us however, the closest discovered magnetar to Earth is 9 000 light years away.

    然而幸運的是,離地球最近的磁星是在9000光年之外。

  • As scary as magnetars are, we can thankfully remain more fascinated by them instead at a save distance away.

    雖然磁星很可怕,但值得慶幸的是,我們可以在保存距離之外,反而對其保持更多的迷戀。

  • For now.... (Dun dun dun!)

    目前....(咚咚咚!)

  • If you still have questions that you like answered about neutron stars, how stars die

    如果你還有關於中子星、恆星是如何死亡的問題,你希望得到解答。

  • Or anything else about our strange and beautiful universe

    或者其他任何關於我們奇怪而美麗的宇宙的事情

  • Then you should know that this video was directly based off a section

    那麼你應該知道,這個視頻是直接根據一段

  • in the astronomy course offered at Brilliant.org

    在Brilliant.org提供的天文學課程上

  • Brilliant is an online learning platform where you can learn about math and science in an easily approachable way

    Brilliant是一個在線學習平臺,在這裡你可以用一種簡單易懂的方式學習數學和科學知識。

  • By solving fun and challenging problems.

    通過解決趣味性和挑戰性的問題。

  • I have been spending a lot of time going through their astronomy course lately

    我最近花了很多時間去看他們的天文學課程

  • And they have a section that is completely devoted to the life cycle of stars that inspired the creation of this video.

    而且他們有一個部分是完全致力於恆星的生命週期,這也是這個視頻創作的靈感來源。

  • They teach you how to calculate what the mass of a teaspoon of neutron star material would be

    他們教你如何計算一茶匙中子星材料的品質是多少

  • And how neutron stars, white dwarfs and black holes are created in the first place.

    而中子星、白矮星和黑洞又是如何首先產生的。

  • The math in this course and the math behind the facts in the video that you just watched are the same.

    本課程中的數學和剛才看的視頻中事實背後的數學是一樣的。

  • So if you like to be able to do these calculations yourself,

    所以如果你喜歡能夠自己進行這些計算。

  • why not go and give them a visit now that you are done watching

    何不去給他們參觀,現在你看完了。

  • You can learn about astronomy and a vast amount of other subjects at

    你可以在這裡學習天文學和大量的其他科目。

  • And best of all, Brilliant is offering a 3-day free trial exclusively to the viewers of this video.

    最重要的是,輝煌公司專門為本視頻的觀眾提供3天的免費試用。

  • This free trail is only available if you click on the brilliant.org/reallifelore

    只有當您點擊 brilliant.org/reallifelore 時,才可以使用這個免費的線索。

  • Link in the description of this video

    在此視頻的描述中加入鏈接

  • So if you liked what you just watched and you're curious to learn more, you should give Brilliant a try.

    所以,如果你喜歡剛才看的內容,又很想了解更多的資訊,就應該給輝煌試一試。

  • It's completely free for three days and you will be supporting my channel at the same time.

    這三天是完全免費的,同時你也會支持我的頻道。

  • Cheers

    乾杯

Hello there.

你好啊

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B1 中級 中文 中子星 恆星 地球 磁場 原子 品質

宇宙中最強大的磁鐵能做什麼?解釋磁星 (What the Most Powerful Magnet in the Universe is Capable of: Magnetars Explained)

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    林宜悉 發佈於 2020 年 11 月 14 日
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