The observation that redshifts are quantized may be accommodated by a version of the tired-light model in which photon energy decreases occur incrementally in a stepwise fashion.doi:10.1086/163922P. A. LavioletteThe Astrophysical JournalLaViolette, P.A. 1996. "Is the Universe Really Expanding?" ...
【TED】科普动画集锦 666 What is the tragedy of the commons 04:59 【TED】科普动画集锦 667 What is the universe expanding into 06:07 【TED】科普动画集锦 668 What is the world wide web 03:55 【TED】科普动画集锦 669 What light can teach us about the universe 04:07 【TED】科普动画...
A. Everything in the universe is getting smaller. B. The distance between galaxies is increasing. C. Galaxies are merging together. D. The universe is getting colder. 相关知识点: 试题来源: 解析 B。本题考查宇宙膨胀的含义。宇宙膨胀意味着星系之间的距离在不断增大,A 选项不是变小,C 选项不是...
A. the universe is expanding has been widely accepted. B. the universe is shrinking. C. the universe is static. D. the universe is not changing. 相关知识点: 试题来源: 解析 A。解析:“The theory that the universe is expanding”中“that the universe is expanding”是同位语从句,解释说明“th...
Hubble reached the (conclude) that the universe is expanding. 相关知识点: 试题来源: 解析 1.conclusion 考查单词拼写和名词。句意:哈勃得出了宇宙正在膨胀的结论。根据前面the可知,此处需要用到名词形式,conclusion,n,结论,符合题意,故答案为:conclusion。
What Is the Universe Expanding into? Sajan Saini The universe began its cosmic life in a big bang nearly fourteen billion years ago, and has been expanding ever since. But what is it expanding into? That’s a complicated question. Her...
A. Subject Clause B. Object Clause C. Predicative Clause D. Appositive Clause 相关知识点: 试题来源: 解析 B。本题考查句子结构。“that the universe is expanding”在句中作宾语,是宾语从句,所以答案是 Object Clause。反馈 收藏
“increasing”意为“不断增加的”,最新研究表明宇宙正在以不断增加的速度膨胀,符合语境。“decreasing”表示“减少的”,与事实不符;“constant”指“恒定的”,不符合宇宙膨胀的实际情况;“unstable”指“不稳定的”,不符合描述膨胀速度的表述。阅读时要注意关键信息“latest research”和“expanding”。
B. Then he asked us that do you understand why the universe is expanding. C. We answered that we didn't really understand but we thought it might be because of dark energy. D. The scientist said that he believes that the universe is E. xpanding. ...
According to the new study, the universe is expanding at a(n) ___ rate. A. increasing B. decreasing C. constant D. unstable 相关知识点: 试题来源: 解析 A。本题关于宇宙膨胀的速率。最新研究表明宇宙在以不断增加的速率膨胀,选项 B 宇宙膨胀不是在减速,选项 C 不是恒定的速率,选项 D 不稳定...