超緊急~ plz help~~20分science~ space~

DES

2007-08-24 12:03 am

1What is the universe?
2What is gravity?
3What is galaxy?
4what are asteroids, comets and meteors?
5What is a constellation?
6Describe what a person needs to do to become an astronaut
7What is the difference between an optical telescope, a radio telescope and an infrared telescope?
8You discover a new star, what do u have to consider when naming it? is it possib;e for you to determine how old it is? how? what else do you need to consider?

俾下一d相關ge網址我自己找都可以ga~
thx alots~~~>

回答 (1)

Peterr

2007-08-24 7:04 am

✔ 最佳答案

1What is the universe?
http://en.wikipedia.org/wiki/Universe

2What is gravity?
http://en.wikipedia.org/wiki/Gravitation

3What is galaxy?
http://en.wikipedia.org/wiki/Galaxy

4what are asteroids, comets and meteors?
http://en.wikipedia.org/wiki/Asteroid
http://en.wikipedia.org/wiki/Comet
http://en.wikipedia.org/wiki/Meteoroid

5What is a constellation?
http://en.wikipedia.org/wiki/Constellation

6Describe what a person needs to do to become an astronaut
http://en.wikipedia.org/wiki/Astronaut

7What is the difference between an optical telescope, a radio telescope and an infrared telescope?
http://en.wikipedia.org/wiki/Telescope

8You discover a new star, what do u have to consider when naming it? is it possib;e for you to determine how old it is? how? what else do you need to consider?
http://en.wikipedia.org/wiki/Star

I have tried my best to help you.

2007-08-25 13:49:32 補充：
幫到你嗎?

參考: wiki

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