”. The existentially terrifying answer is: there is no such thing as a “correct clock”. Every clock measuresits own timeand there is no such thing as auniversal time. Andyet, cosmologists are always talking about the age of the universe (a mere 13.80±0.02 billion yea...
C. How old is the universe? D. Why is the universe so old? 相关知识点: 试题来源: 解析 【考点】科教类阅读;说明文阅读. 【分析】这是一篇说明文。文章主要讲述宇宙的寿命。 【解答】(1) B. 细节理解题,由第二段第一句"Because the universe is expanding at an accelerating pace, the faster ...
Scientists have always wanted to know more about the universe.Years ago they knew many things about the moon.They knew how big it is and how far away it is from the earth.But they wanted to know more about it.They thought the best way was to send men to the moon.The moon is about...
Thinking about the Universe We live in a strange and wonderful universe. Its age,size violence, and beauty require extraordinary imagination to appreciate. Theplace we humans hold with in this vast cosmos can seem pretty insignificant...
Thirdly, how did stars generate their energy? Einstein’s theory of relativity had become generally accepted by 1962, though there were some astronomers who doubted it – and there still are. At least we know now that the age of the Universe is 13.8 billion years and we are confident that...
Why is radium still found in nature? Its half-life is 1600 years, and the estimated age of the universe is five billion years. View Solution Age of the universe is about 1010 years whereas the mankind has existed for 106 years. How many seconds would the man have existed if age of ...
The much - loved cartoon about Bluey, a seven-year-old dog, has been a worldwide phenomenon since it launched back in 2018. Its story is a deep reflection on change.Besides laugh - out - loud moments, it also contains serious elements - scenes of parenting situations that will be 56_ ...
how old D. how big( D) 47. The earth is about 384,000 kilometers away from the ___. A. space B. universe C. sun D. moon( A) 48. A plane cannot fly to the moon because___. A. there is no air above 240 kilometers away from the earth B. there is no gas in the plane...
1.Scientists have known ___ the moon is . [ ] A.how long B.how heavy C.how old D.how big 2.The earth is about 384,000 kilometres away from the ___. [ ] A.space B.universe C.sun D.moon 3.A plane can't fly to the moon because ___. [ ] A.there is no...
So this is rule number one. I wanted to become a champion; I was on a mission. So rule number one is, of course, trust yourself, no matter how and what anyone else thinks."Our take on it: The best person to...