《How Old Is the Universe?》是2010年Princeton University Press出版的图书，作者是David A. Weintraub 。内容简介 Astronomers have determined that our universe is 13.7 billion years old. How exactly did they come to this precise conclusion? "How Old Is the Universe?" tells the incredible story of...
"How Old Is the Universe?" tells the incredible story of how astronomers solved one of the most compelling mysteries in science and, along the way, introduces readers to fundamental concepts and cutting-edge advances in modern astronomy. The age of our ... ...
How old is the universe? (cover story)Discusses the attempt of scientists to determine the age of the universe. The theory of an expanding universe; The difficulty in calculating Hubble's constant; The establishment of search candles.UCook...
I. Ferreras, A. Melchiorri and J. Silk, How old is the Universe? Setting new constraints on the age of the Universe, Mon. Not. Roy. Astron. Soc. 327 (2001) L47 [astro-ph/0105384] [SPIRES].I. Ferreras, A. Melchiorri, and J. Silk, "How old is the universe? Setting new ...
The universe(宇宙) is everything out in space. No-body 1 how large the universe is. When we talk aboutthe universe, we 2 the Earth, the Sun, the Moon andall the stars, and the space between them.Now let me tell you something about the 3 . It islike a large bal. It 4around ...
In order to understand how old the universe is, then, we have to figure out the rate of that acceleration, which is represented by a number called the Hubble constant. That’s where the trouble comes in. There aretwo ways to measure the Hubble constant. ...
The universe(宇宙) is everything out in space.Nobody(1)___ how large the universe is.When we talk about the universe,we mean(意思是) the Earth,the Sun,the Moon and all the(2)___,and the space between them. Now let me tell you something about the(3)___.It is like a large ...
根据“The universe is everything out in space.”可知,这里指没有人知道宇宙有多大,故选B。(2)题详解: 句意:当我们谈论宇宙时,我们指的是地球、太阳、月亮和所有的恒星,以及它们之间的空间。protect保护;leave离开;mean意思是;see看见。根据“the Earth, the Sun, the Moon and all the stars, and the ...
The universe(宇宙) is everything out in space. Nobody __ 1___ how large the universe is. When we一、 完形填空。talk about the universe, we _ 2_ t the Earth, the Sun, the Moon and all the stars, and the space Now let me tell you something about the 3. It is like a large...
The universe(宇宙) is everything out in space. Nobody _16_ how large the universeis. When we talk about the universe, we_17_ the Earth, the Sun, the Moon and all thestars, and the space between them.Now let me tell you something about the_18_. It is like a large ball. It_...