標(biāo)題: Titlebook: Cosmic Time Travel; A Scientific Odyssey Barry Parker Book 1991 Barry Parker 1991 astronomy.physics.time.travel [打印本頁(yè)] 作者: 小天使 時(shí)間: 2025-3-21 20:06
書目名稱Cosmic Time Travel影響因子(影響力)
書目名稱Cosmic Time Travel影響因子(影響力)學(xué)科排名
書目名稱Cosmic Time Travel網(wǎng)絡(luò)公開(kāi)度
書目名稱Cosmic Time Travel網(wǎng)絡(luò)公開(kāi)度學(xué)科排名
書目名稱Cosmic Time Travel被引頻次
書目名稱Cosmic Time Travel被引頻次學(xué)科排名
書目名稱Cosmic Time Travel年度引用
書目名稱Cosmic Time Travel年度引用學(xué)科排名
書目名稱Cosmic Time Travel讀者反饋
書目名稱Cosmic Time Travel讀者反饋學(xué)科排名
作者: jumble 時(shí)間: 2025-3-21 20:50
re needed for efficient space travel, we encounter another problem: the force on our body due to the acceleration required to reach these higher speeds would quickly overcome us. The human body can only stand 2 or 3 g’s (g is the acceleration of gravity on Earth) over a long period of time.作者: entitle 時(shí)間: 2025-3-22 01:04 作者: 持續(xù) 時(shí)間: 2025-3-22 05:10
Working-Class Writing and Experimentation field equations of general relativity was found. Indeed, a mystery developed that was not cleared up for over 40 years. It was, however, the final resolution of this mystery that now forms the basis of our hope for space travel.作者: FUSE 時(shí)間: 2025-3-22 09:10 作者: 鉆孔 時(shí)間: 2025-3-22 14:06 作者: 鉆孔 時(shí)間: 2025-3-22 19:23 作者: osteopath 時(shí)間: 2025-3-22 23:46
Faster Than Light?, astronauts in the spaceship don’t notice this slowing; to them time appears to pass normally. But if we use the slowed-down time seen by Earth observers to calculate the “effective speed” of the spaceship, we obtain numbers well in excess of the speed of light (usually called .).作者: 中世紀(jì) 時(shí)間: 2025-3-23 05:24
Introduction,nce fiction writers have been speculating on such matters for years. But will it ever become reality? Scientists have recently been looking into this and what they have found has astounded them. Time travel may, indeed, be possible.作者: 熱烈的歡迎 時(shí)間: 2025-3-23 08:14 作者: 來(lái)就得意 時(shí)間: 2025-3-23 12:33 作者: 溺愛(ài) 時(shí)間: 2025-3-23 15:21
Advanced Civilizations and Time Travel,izations somewhere out there are using them right now Do we have any evidence that this is the case? Unfortunately, we don’t; we can only speculate, but careful scientifically guided speculation is often useful.作者: Inclement 時(shí)間: 2025-3-23 18:19
Working-Class Writing and Experimentationjects known as white dwarfs. For many years white dwarfs were the exotic objects of astronomy: tiny, bright stars, hardly bigger than Earth, yet so dense that a teaspoon of material from them weighed tons.作者: Conjuction 時(shí)間: 2025-3-24 01:00 作者: 可卡 時(shí)間: 2025-3-24 06:10
Working-Class Writing and Experimentationt from background stars and would appear as a black sphere. But from Earth we wouldn’t be able to see this sphere. The nearest black hole is probably light years away, and even with our largest telescopes we couldn’t see anything that small.作者: 背書 時(shí)間: 2025-3-24 09:59 作者: ostensible 時(shí)間: 2025-3-24 10:44 作者: osteocytes 時(shí)間: 2025-3-24 15:53 作者: headway 時(shí)間: 2025-3-24 19:05 作者: 含沙射影 時(shí)間: 2025-3-25 01:23
Searching for Time Tunnels,t from background stars and would appear as a black sphere. But from Earth we wouldn’t be able to see this sphere. The nearest black hole is probably light years away, and even with our largest telescopes we couldn’t see anything that small.作者: Affirm 時(shí)間: 2025-3-25 06:13
Overcoming the Problems,the universe. From this point of view, I suppose you can’t blame them. But relativists knew that what they were suggesting was impossible, and to some degree it irritated them. Why should science fiction writers continue to advocate something that had been proved impossible. It seemed crazy.作者: 疏忽 時(shí)間: 2025-3-25 11:07 作者: Bph773 時(shí)間: 2025-3-25 13:54
Space That Bends and Twists, One of the major reasons we want to understand space is because we would like to travel between two points in the universe without actually traversing the space between them. Impossible, you say. Yes, it does sound impossible, but we will see in this chapter that we might eventually be able to do it.作者: 相反放置 時(shí)間: 2025-3-25 18:26
Journey into a Black Hole, most distant planets in the solar system. And recently a rocket exited the solar system and is now headed for the stars. It will, of course, be hundreds of thousands of years before it reaches the nearest stars; nevertheless, it’s a start.作者: 比目魚 時(shí)間: 2025-3-25 22:33
Overview: 978-0-306-43966-7978-1-4899-6136-5作者: Hla461 時(shí)間: 2025-3-26 02:06 作者: Liability 時(shí)間: 2025-3-26 06:04
Working-Class Writing and Experimentation most distant planets in the solar system. And recently a rocket exited the solar system and is now headed for the stars. It will, of course, be hundreds of thousands of years before it reaches the nearest stars; nevertheless, it’s a start.作者: 震驚 時(shí)間: 2025-3-26 08:38
https://doi.org/10.1007/978-1-4899-6136-5astronomy; physics; time; travel作者: 滔滔不絕地講 時(shí)間: 2025-3-26 16:35 作者: aneurysm 時(shí)間: 2025-3-26 17:58
Working-Class Writing and ExperimentationWe have seen that if space . curved, we may someday be able to travel rapidly and easily through it to distant points in the universe. So far, though, we have said nothing about how space becomes curved, or if, indeed, it happens at all. What would cause space to curve?作者: 簡(jiǎn)潔 時(shí)間: 2025-3-26 21:21
Working-Class Writing and ExperimentationBefore we continue, we should pause briefly to contemplate what we know about time. After all, time, like space, is also critical in our flight to the stars, so it’s essential that we understand it as fully as possible.作者: 人類的發(fā)源 時(shí)間: 2025-3-27 05:01 作者: Vertical 時(shí)間: 2025-3-27 07:28
The Nature of Time and Space-time,Before we continue, we should pause briefly to contemplate what we know about time. After all, time, like space, is also critical in our flight to the stars, so it’s essential that we understand it as fully as possible.作者: 官僚統(tǒng)治 時(shí)間: 2025-3-27 12:18
Working-Class Writing and Experimentationat would it feel like to be suddenly catapulted hundreds, even thousands of years into the future? What would it be like to visit your ancestors? Science fiction writers have been speculating on such matters for years. But will it ever become reality? Scientists have recently been looking into this 作者: 創(chuàng)作 時(shí)間: 2025-3-27 16:48
f Pluto. But, as he pushes farther into space, the challenges and obstacles mount. It took Apollo only three days to reach the moon, but Pioneer 10 took nearly two years to reach Jupiter, and it was 14 years before it finally exited the solar system. At this speed it would take 80,000 years for us t作者: 浮雕 時(shí)間: 2025-3-27 18:16
Working-Class Writing and Experimentation One of the major reasons we want to understand space is because we would like to travel between two points in the universe without actually traversing the space between them. Impossible, you say. Yes, it does sound impossible, but we will see in this chapter that we might eventually be able to do i作者: PAN 時(shí)間: 2025-3-28 00:30
Working-Class Writing and Experimentationature become? Is it possible for matter to create an infinite curvature? This possibility bothered Einstein and others after the first solution of the field equations of general relativity was found. Indeed, a mystery developed that was not cleared up for over 40 years. It was, however, the final re作者: defray 時(shí)間: 2025-3-28 04:51 作者: expository 時(shí)間: 2025-3-28 08:46 作者: Brain-Waves 時(shí)間: 2025-3-28 12:28
Working-Class Writing and Experimentation go about getting observational evidence? It obviously isn’t easy. Black holes are only a few miles across and emit no light. Furthermore, they are black, the same color as the background sky. If we were close enough to one, we would be able to detect it indirectly, since it would block off the ligh作者: neolith 時(shí)間: 2025-3-28 18:15
Working-Class Writing and Experimentation most distant planets in the solar system. And recently a rocket exited the solar system and is now headed for the stars. It will, of course, be hundreds of thousands of years before it reaches the nearest stars; nevertheless, it’s a start.作者: Gourmet 時(shí)間: 2025-3-28 21:12
Working-Class Writing and Experimentationel. Even Schwarzschild wormholes appear to be of little use. Because of the difficulties, scientists had generally given up on the idea by the early 1970s. Science fiction writers, on the other hand, continued to use them, perhaps because they provided a handy way to move their characters around in 作者: 猛烈責(zé)罵 時(shí)間: 2025-3-28 23:55
Alexander Goebel,Sebastian G. M. H?ndschkeis filled with tiny wormholes. It appears, then, that if we are ever to have a large wormhole, we are going to have to start with a small one and enlarge it. We have no idea at the present time how we would do this, but we do know that it is important to try to understand how these tiny quantum worm作者: 彎彎曲曲 時(shí)間: 2025-3-29 04:29
Alexander Goebel,Sebastian G. M. H?ndschkew if someday in the distant future these tunnels will be used to travel to the stars. If this does happen, it is reasonable to assume that other civilizations somewhere out there are using them right now Do we have any evidence that this is the case? Unfortunately, we don’t; we can only speculate, b作者: 修剪過(guò)的樹(shù)籬 時(shí)間: 2025-3-29 09:03 作者: Lipoprotein(A) 時(shí)間: 2025-3-29 14:57
Alexander Goebel,Sebastian G. M. H?ndschke only a few years ago were unimaginable. Yet, strangely, we are still not certain that time travel is, in fact, possible. We do know, though, that time tunnels—regions where space and time are twisted into wormholelike tunnels—are possible. Black holes have such tunnels associated with them. But unf作者: tangle 時(shí)間: 2025-3-29 15:41 作者: Intruder 時(shí)間: 2025-3-29 23:30 作者: STEER 時(shí)間: 2025-3-30 01:03 作者: Protein 時(shí)間: 2025-3-30 06:35 作者: itinerary 時(shí)間: 2025-3-30 09:52 作者: FORGO 時(shí)間: 2025-3-30 15:50 作者: Congeal 時(shí)間: 2025-3-30 17:13 作者: 脆弱吧 時(shí)間: 2025-3-30 23:08 作者: 枕墊 時(shí)間: 2025-3-31 04:50
Overcoming the Problems,el. Even Schwarzschild wormholes appear to be of little use. Because of the difficulties, scientists had generally given up on the idea by the early 1970s. Science fiction writers, on the other hand, continued to use them, perhaps because they provided a handy way to move their characters around in 作者: Keshan-disease 時(shí)間: 2025-3-31 08:32
Wormholes and Other Universes,is filled with tiny wormholes. It appears, then, that if we are ever to have a large wormhole, we are going to have to start with a small one and enlarge it. We have no idea at the present time how we would do this, but we do know that it is important to try to understand how these tiny quantum worm作者: Cpr951 時(shí)間: 2025-3-31 10:03
Advanced Civilizations and Time Travel,w if someday in the distant future these tunnels will be used to travel to the stars. If this does happen, it is reasonable to assume that other civilizations somewhere out there are using them right now Do we have any evidence that this is the case? Unfortunately, we don’t; we can only speculate, b
