SSS 2008-10-20
时间：2019-01-08 作者：英语课 分类：Scientific American(十)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
We humans have always pondered the heavens. Astronomy and physics have come out of our wonder at the points of light in the darkness. Scientists now want to take advantage of that natural nightly gaze. They’re turning to citizen scientists to count stars as a way to measure light pollution.
The project will take place from October 20th to November 3. It’s sponsored by the University Corporation for Atmospheric 1 Research. Interested volunteers in the northern hemisphere will search for the constellation 2 Cygnus. In the southern hemisphere they’ll be looking for Sagittarius.
Participants can search the skies outside their homes or in a darker area nearby. Scientists use this information to compare visibility around the world. Not surprisingly, last year they found that more developed areas have higher levels of light pollution. But the project has a second goal. The astronomers 3 want to remind us all to take a moment to appreciate the beauty and wonder of the night sky. Information about how to participate can be found at the Great Worldwide Star Count website: www.snipurl.com/starcount
Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber
- Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
- Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
- 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。
- 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》