2015-05-20 BBC:星光七纪元-35
时间：2019-01-23 作者：英语课 分类：探索与发现2015年
Could these be the neutron 1 stars predicted by Z? astronomers 3 nicknamed them pulsars and immediately set their telescopes searching for further clues about them, just a year later, they found one, in the perfect place to put Z's theory to the test.In the winter, we have access to the beautiful part of the sky that contains the constellation 4 of Taurus, here we have the P or the seven sisters, down here we have another cluster of stars which are the H that contain the bright star of A, the angry eye of the bull, and if we follow from A in this direction towards that star there, just about there, we'll find the closest pulsar to the solar system, the crab 5 pulsar.
What particularly excited scientists when they discovered the crab pulsar was that it was buried deep within the remains 6 of a supernova.
In this amazing picture, we see the remnant of a supernova explosion, but when we scan the central part of this nebula 7, we find the pulsar which is the remnant of the core of the star that exploded.
Now that a pulsar was definitively 8 connected to supernova, scientists realized that they had discovered another of the seven ages of starlight, it showed Swiss astronomer 2 Z was correct all along, his theoretical equations predicted how a supernova could leave behind such a dense 9 remnant.
- Neutron is neutral and slightly heavier than the proton.中子是中性的，比质子略重。
- Based on the neutron energy,the value of weighting factor was given.根据中子能量给出了相应的辐射权重因子的数值。
- A new star attracted the notice of the astronomer.新发现的一颗星引起了那位天文学家的注意。
- He is reputed to have been a good astronomer.他以一个优秀的天文学者闻名于世。
- Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
- Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪，为什么只有土星有光环。 来自《简明英汉词典》
- A constellation is a pattern of stars as seen from the earth. 一个星座只是从地球上看到的某些恒星的一种样子。
- The Big Dipper is not by itself a constellation. 北斗七星本身不是一个星座。
- I can't remember when I last had crab.我不记得上次吃蟹是什么时候了。
- The skin on my face felt as hard as a crab's back.我脸上的皮仿佛僵硬了，就象螃蟹的壳似的。
- He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
- The remains of the meal were fed to the dog.残羹剩饭喂狗了。
- A powerful telescope can resolve a nebula into stars.一架高性能的望远镜能从星云中分辨出星球来。
- A nebula is really a discrete mass of innumerous stars.一团星云实际上是无数星体不连续的集合体。
- None of the three super-states could be definitively conquered even by the other two in combination. 三个超级国家中的任何一国都不可能被任何两国的联盟所绝对打败。 来自英汉文学
- Therefore, nothing can ever be definitively proved with a photograph. 因此，没有什么可以明确了一张照片。 来自互联网