标签:wavelength 相关文章
Hubble Detects Oxygen-Bearing Minerals on Moon 哈勃天文台探测到月球上拥有含氧矿物质 The orbiting Hubble observatory is usually aimed at extremely distant areas of the universe. But f
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the
EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can
As it ages, white paper turns distinctive of yellow, but why? To find out, scientists artificially aged modern paper to rebuild the changes on the molecular level, the researchers in the Journal physical review of letters, for 48 days, 3 unpleached p
Bring home a bucket of fried chicken and you may find that people have strong feelings about which part of the bird is best. Well, scientists at Washington University in St. Louis say the answer is: the eyes. At least when you compare them to our own
01. If handled responsibly, an office love affair can be rewarding. 如果处理得当,办公室恋情就能够开花结果。 02. How am I supposed to ask her on a date? 我该怎么去约她才合适? 03. Love and a cough cannot be hidden. 爱情像
The Color Of The Universe 宇宙的颜色 When we look up into the night sky it seems black, but scientists have observed something different. In this Moment of Science we discuss the color of the universe. 当我们仰望夜空的时候,它看上去
But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch
Astronomers: Evidence Found of First Stars Astronomers have observed what they believe is the formation of the universe 13.6 billion years ago, when the earliest stars were just starting to shine. The astronomers say their observations may also have
有一次我在跟一个 ABK (American born Korean) 用 ICQ 聊天时我问她什么时候才要交男朋友时, 她说了一句话很有意思, I'd take anything that walks at this point. 这句话我一
The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci
Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve
plateau n. (上升后的)稳定水平(或时期、状态) plug n.塞子 pockmarked adj.有麻点的 polar adj.两极的 pole n.极 porous adj.多孔渗水的 portable adj.轻便的 pose v.形成
JERUSALEM, May 8 (Xinhua) -- Israeli researcher Jacob (Koby) Scheuer, from the Tel Aviv University (TAU) School of Electrical Engineering, has developed a nano-scale gyroscope, the Ha'aretz daily reported Sunday. Scheuer developed a new optic-fiber n
wage n.工资,报酬vt.开展(运动) wagon n.四轮运货马车 waist n.腰,腰部 wander v.漫游;迷路;离题 warmth n.暖和,温暖;热烈 waterfall n.瀑布 waterproof a.不透水的,
Death comes sweeping through the hallway 死神降临,在走廊里漫步 Like a lady's dress 像一位盛装女王 Death comes driving down the highway 死神降临,在高速路上疾驰 In its sunday best 穿着节日盛装 A fire of unknown ori
So you want to attract mates. After all, passing on your genes is what evolution is all about. To do that you need offspring, and to get a lot of those you need to be attractive. The flashier the better. Hey, look over here! Sexy me. Ah, but theres t
【经典】《泰坦尼克号》主题曲 中英歌词: Every night in my dreams I see you, I feel you, That is how I know you go on Far across the distance And spaces between us You have come to show you go on Near, far, wherever you are I believ
The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen
The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into