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關於黑洞的初中英語閱讀

發布時間:2021-03-10 06:18:05

① 《神秘的黑洞》任務型閱讀英語

We have trousers in all colours on sale.

② 關於黑洞的知識(英語)•

黑洞是現代廣義相對論中,宇宙空間內存在的一種天體。黑洞的引力很大,使內得視界內容的逃逸速度大於光速。
1916年,德國天文學家卡爾·史瓦西(Karl Schwarzschild)通過計算得到了愛因斯坦引力場方程的一個真空解,這個解表明,如果將大量物質集中於空間一點,其周圍會產生奇異的現象,即在質點周圍存在一個界面——「視界」一旦進入這個界面,即使光也無法逃脫。這種「不可思議的天體」被美國物理學家約翰·阿奇博爾德·惠勒(John Archibald Wheeler)命名為「黑洞」。
「黑洞是時空曲率大到光都無法從其事件視界逃脫的天體」。[1-3]
黑洞無法直接觀測,但可以藉由間接方式得知其存在與質量,並且觀測到它對其他事物的影響。藉由物體被吸入之前的因高熱而放出和γ射線的「邊緣訊息」,可以獲取黑洞存在的訊息。推測出黑洞的存在也可藉由間接觀測恆星或星際雲氣團繞行軌跡取得位置以及質量。
希望我能幫助你解疑釋惑。

③ 關於黑洞的英語作文

General theory of relativity prediction one kind of specially compact dark heavenly body. The big quality star occurs in its evolved last stage collapses shrinks, its material is specially compact, it has is called 「 arc of visibility」 the seal boundary, in the black hole is going into hiding the huge gravitational field, because the gravitational field is specially strong including photon any material can only go, but inescapable.Forms the black hole the star nuclear mass lower limit the approximately 3 time of solar qualities, certainly, this is the final star nuclear mass, but is not the star in the main foreword time quality. Except this kind of star level black hole, also has the other origin black hole - - so-called miniature black hole possibly to form in the universe early time, but the so-called ultra big quality black hole possibly exists in the galaxy central committee.
The black hole does not let, no matter what how in boundary any thing by outside seeing, this is this kind of object is called 「the black hole」 the reason. We are unable the transmitted light reflection to observe it, can only through receive its influence the periphery object to come the indirect understanding black hole. Although such said that but the black hole has its boundary, namely " event arc of visibility (arc of visibility) 「. According to the guess, the black hole is the death star surplus, is when special big quality super-giant collapsing contracts proces. Moreover, the black hole must be a quality is bigger than Qiandela the Saika limit to form the stellar evolution to the last stage, the quality is smaller than Qiandela the Saika limit star is unable to form the black hole

④ 黑洞英文介紹

General relativity predicts a particularly dense dark objects. Evolution of massive stars in their late collapse occurs, the dense material in particular, it has one called "event horizon" of the closed border, a black hole hidden in a huge gravitational field, e to the gravitational field so strong, including in particular photon (ie the composition of light particles, the speed c = 3.0 × 10 ^ 8m / s), including any material can only be entered could not escape. The formation of a black hole minimum mass star's core is about three times the solar mass, of course, this is the last star of nuclear quality, rather than main sequence stars in the period of quality. In addition to this stellar-class black hole, there are other sources of black holes - the so-called micro-black holes may be formed in the early universe, the so-called supermassive black holes may exist in the central galaxy. A black hole can be found through the concept of electronic equipment.
The black hole within its borders to prevent any outsiders to see anything, which is the object known as the "black hole" of the reason. We were unable to observe the reflection of light it can only be affected indirectly understand the objects around the black hole. Having said that, but the black hole still has its borders, namely "event horizon (horizon)." It is assumed that the evolution of stellar black hole of death matter, is in a special super-massive stars collapse generated. In addition, the quality of a black hole must be larger than the Chandrasekhar limit of stellar evolution to the end of the form, quality, smaller than the Chandrasekhar limit of the star is unable to form a black hole.

翻譯成漢語就是下面的意思----

廣義相對論預言的一種特別緻密的暗天體。大質量恆星在其演化末期發生塌縮,其物質特別緻密,它有一個稱為「視界」的封閉邊界,黑洞中隱匿著巨大的引力場,因引力場特別強以至於包括光子(即組成光的微粒,速度c=3.0×10^8m/s)在內的任何物質只能進去而無法逃脫。形成黑洞的星核質量下限約3倍太陽質量,當然,這是最後的星核質量,而不是恆星在主序時期的質量。除了這種恆星級黑洞,也有其他來源的黑洞——所謂微型黑洞可能形成於宇宙早期,而所謂超大質量黑洞可能存在於星系中央。黑洞可以經由電子儀器觀查到。
黑洞不讓任何其邊界以內的任何事物被外界看見,這就是這種物體被稱為「黑洞」的緣故。我們無法通過光的反射來觀察它,只能通過受其影響的周圍物體來間接了解黑洞。雖然這么說,但黑洞還是有它的邊界,即「事件視界(視界)」。據猜測,黑洞是死亡恆星的演化物,是在特殊的大質量超巨星坍縮時產生的。另外,黑洞必須是一顆質量大於錢德拉塞卡極限的恆星演化到末期而形成的,質量小於錢德拉塞卡極限的恆星是無法形成黑洞的。

【希望這個可以幫助您】

⑤ 求100詞左右的介紹黑洞或者反物質或者蟲洞的英語短文。不要太難得。初三能讀懂就行!

黑洞、反物質和蟲洞這三樣東西本來就屬於很難懂得東西,還要用英文表達的簡單點的話有點難。但可以把它寫的形象生動點:比方說黑洞是一個很黑的洞,就不要說黑洞是一個可以吸引周圍一切物體的高質量天體。

⑥ 有關黑洞的英語閱讀

General relativity predicts a particularly dense dark objects. Evolution of massive stars in their late collapse occurs, the dense material in particular, it has one called "event horizon" of the closed border, a black hole hidden in a huge gravitational field, e to the gravitational field so strong, including in particular photon (ie the composition of light particles, the speed c = 3.0 × 10 ^ 8m / s), including any material can only be entered could not escape. The formation of a black hole minimum mass star's core is about three times the solar mass, of course, this is the last star of nuclear quality, rather than main sequence stars in the period of quality. In addition to this stellar-class black hole, there are other sources of black holes - the so-called micro-black holes may be formed in the early universe, the so-called supermassive black holes may exist in the central galaxy.

⑦ 關於黑洞的三分鍾英語演講稿,私信發給我

Dear teachers and classmates, good morning, today I give everybody to bring the theme of black hole secret.
As everyone knows, the black hole is a celestial bodies. But a lot of people see him as a bottomless pit, it was wrong. Even some humanitarian to the way that the black hole mass is infinite, that is not correct.
In fact, the black hole has a lot of potential, the most common is the star level of the black hole, as the name suggests, she is and the stars involved. Stellar black holes are usually made by more than eight times the mass of the sun, the stars, the aging after collapse to form, so, the sun to become a black hole, or less qualified.
Why do stars aging will collapse? Because we all know that the universal gravitation, we usually blowing balloons if not tied shut up, will quickly leak, in the final analysis because of the balloon is elastic, the intermolecular gravitation.

⑧ 關於天文的英語閱讀

Black Holes(黑洞)

Black holes are some of the strangest things in space. A black hole sucks in anything that gets near it. Nothing can escape from a black hole—not even light.

BLACK HOLES ARE STRONG

Nothing escapes from a black hole because its gravity is so strong. Gravity is a force that pulls one thing to another. Gravity is the force that holds you down on Earth. When you jump up, Earth』s gravity pulls you right back down. Earth』s gravity also makes the Moon orbit (go around) Earth.

The more matter (stuff) that is packed in a star, planet, moon, or other object, the stronger is its gravity. Gravity makes an object with more matter pull an object with less matter toward it. The Sun has a lot more matter than Earth. The Sun』s gravity pulls on Earth. It makes Earth orbit the Sun.

Matter is packed very tightly in some things and loosely in others. The matter that makes up an iron ball is packed much tighter than the matter that makes up a bag of feathers. A scientist would say that an iron ball is much denser than a bag of feathers.

A black hole is denser than anything you could imagine. A black hole could have a million times more stuff than our Sun. All of this stuff would be packed into an area smaller than a city. The force of gravity from so much stuff packed into such a small area is awesome.

WHERE DO BLACK HOLES COME FROM?

Astronomers and physicists think black holes come from dying stars. A dying star burns out and stops shining. All the stuff that makes up the star starts falling in on itself. The star gets denser and denser. If the star is big enough and has enough matter, it could get dense enough to become a black hole.

STUDYING BLACK HOLES

No one has really seen a black hole. You cannot see black holes because they do not give off any kind of light. Physicists used math to predict that black holes exist.

Astronomers look for signs of black holes. Astronomers study powerful rays coming from stars in deep space. The stars seem to be orbiting black holes. Astronomers think that black holes are sucking gas from the stars, and this makes the stars give off X rays.

Galaxies are enormous groups of stars. Astronomers think that most galaxies have huge black holes at their centers. The Hubble Space Telescope took pictures of a disk of hot gases at the center of our own Milky Way Galaxy. Astronomers think this disk is going around an enormous black hole right in the center of our galaxy.

黑洞(黑洞)
黑洞是在太空的一些奇怪的事。一個黑洞吸入任何靠近它。沒有什麼能逃脫黑hole-not甚至光。
黑洞是強大的
沒有逃離黑洞因為它的引力是如此的強烈。重力是一股力量,把一件事到另一個地方。重力是地球上把你的力量。當你跳起來時,地球引力把你拉回來。地球的引力也讓月球地球軌道(四處)。
越多事情(東西),裝在一個明星,行星,月亮,或其他對象,它的引力就越強。物體重力使一個對象有更多物質拉向它用更少的問題。太陽比地球更重要。地球上太陽的引力拉。它使地球軌道太陽。
問題是包裝非常緊密一些事情和鬆散。這件事讓一個鐵球比這件事更緊了,一袋羽毛。科學家會說,一個鐵球比一袋密集的羽毛。
一個黑洞的密度比你能想像的任何東西。一個黑洞可能更多的東西比太陽的一百萬倍。所有的這些東西會比城市更小的區域里。這么多東西的重力擠進這么小的區域是可怕的。
黑洞來自哪裡?
天文學家和物理學家認為黑洞來自垂死恆星。垂死的恆星燃燒停止照耀。所有的東西,明星開始下降。星星變得越來越密集的。如果恆星足夠大,有足夠的物質,它能密度足以成為一個黑洞。
研究黑洞
沒有人真正看到一個黑洞。你看不見黑洞因為他們不發出任何類型的光。物理學家利用數學預測,黑洞的存在。
天文學家尋找黑洞的跡象。天文學家研究強大的射線來自恆星外層空間。星星似乎環繞黑洞。天文學家認為,黑洞吸氣體從恆星,這使得星星發出X射線。
星系是巨大的恆星組。天文學家認為,大多數星系有巨大的黑洞中心。哈勃太空望遠鏡拍照片的一個磁碟的熱氣體在我們的銀河系的中心。天文學家們認為這個磁碟將在一個巨大的黑洞就在銀河系的中心。

⑨ 什麼是黑洞卞毓麟閱讀答案

定義:由一個只允許外部物質和輻射進入而不允許物質和輻射從中逃離專的邊界即視界屬(event horizon)所規定的時空區域
黑洞是一種引力極強的天體,就連光也不能逃脫。當恆星的半徑小到一定程度,小於史瓦西半徑時,就連垂直表面發射的光都無法逃逸了。這時恆星就變成了黑洞。說它「黑」,是指它就像宇宙中的無底洞,任何物質一旦掉進去,「似乎」就再不能逃出。由於黑洞中的光無法逃逸,所以我們無法直接觀測到黑洞。然而,可以通過測量它對周圍天體的作用和影響來間接觀測或推測到它的存在。

⑩ 求一個關於黑洞的三分鍾演講,中英文都可以,最好是英文,要求連貫,有趣

jandan.net/2012/12/04/inside-the-black-hole.html
這個視頻,我記得是10分鍾,你壓縮一下吧,或者選一段

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