标签：Astronomer 相关文章
Technology Report - Astronomers Still Look to Hubble Space Telescope 科技报道 - 哈勃太空望远镜20年后威力不减 This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道节目。 The Hubble Space T
2011年VOA慢速英语(八)月
Newtons Apple Tree 牛顿的苹果树 Newton was an English physicist and mathmatician,and was the greatest scientist in his era. 牛顿是一位英国物理学家和数学家，也是他那个时代最卓越的科学家之一。 Isaac Newton was bor
走进剑桥大学
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Its been nearly 20 years since astronomers first identified a planet outside our solar system. More than 500 exoplanets have been discovered since then, ye
Scientific American(三)月
Energy isn't created or destroyed,it's transferred, so it's transferred from the center of the Sun through the atmospheres to us in many forms, warmth and light via the plants and via the food that we eat. I can really understand why ancient civiliza
探索与发现2015年
AS IT IS 2016-03-09 Solar Eclipse Starts Wednesday, Ends Tuesday 星期三开始星期二结束的日食 This is Whats Trending Today. A solar eclipse will pass over Earth on Wednesday, starting in Southeast Asia March 9, and ending in the western Pa
2016年VOA慢速英语(三)月
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2011年
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2012年
February 19th 1945. Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2014年
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2015年
February 19th 1945.Weve got cities and pricks, all up along the beach, and dozens of marines are around each one of them In the final months of World War II, Some 30,000 US marines begin landing at Iwo Jima.Thats where they fight a month-long battle
历史上的今天-2016年
At his urging, the Royal Society agreed to engage a reliable figure to tour the British Isles to see if such a mountain could be found. Maskelyne knew just such a personthe astronomer and surveyor Charles Mason. Maskelyne and Mason had become friends
万物简史
At one point the group had to suspend work for eight months while La Condamine rode off to Lima to sort out a problem with their permits. Eventually he and Bouguer stopped speaking and refused to work together. Everywhere the dwindling party went it
万物简史
Of course we have no prospect of such a journey. A trip of 240,000 miles to the Moon still represents a very big undertaking for us. A manned mission to Mars, called for by the first President Bush in a moment of passing giddiness, was quietly droppe
万物简史
As for Pluto itself, nobody is quite sure how big it is, or what it is made of, what kind of atmosphere it has, or even what it really is. A lot of astronomers believe it isn't a planet at all, but merely the largest object so far found in a zone of
万物简史
One nice touch about Christy's discovery was that it happened in Flagstaff, for it was there in 1930 that Pluto had been found in the first place. That seminal event in astronomy was largely to the credit of the astronomer Percival Lowell. 克里斯蒂
万物简史
This was actually something of a blow to Pluto's status as a planet, which had never been terribly robust anyway. Since previously the space occupied by the moon and the space occupied by Pluto were thought to be one and the same, it meant that Pluto
万物简史
There are actually twenty-two naturally occurring amino acids known on Earth, 实际上，地救上有22种天然存在的氨基酸， and more may await discovery, but only twenty of them are necessary to produce us and most other living things. 更多
万物简史
Hubble realized that this could be expressed with a simple equation, Ho = v/d (where Ho is the constant, v is the recessional velocity of a flying galaxy, andd its distance away from us). Ho has been known ever since as the Hubble constant and the wh
万物简史
In 1919, now aged thirty, he moved to California and took up a position at the Mount Wilson Observatory near Los Angeles. Swiftly, and more than a little unexpectedly, he became the most outstanding astronomer of the twentieth century. 1919年，他已
万物简史
The results were so unexpected, in fact, that the three scientists at first thought they had to be wrong. 实际上，结果完全出人意料，三位科学家起先以为自己错了。 The amount of iridium in the Alvarez sample was more than thre
万物简史