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http://blog.naver.com/izoakwon?Redirect=Log&logNo=100025992299
http://cafe.naver.com/sciencetree.cafe?iframe_url=/ArticleRead.nhn%3Farticleid=114
http://physica.gsnu.ac.kr/physedu/modexp/spectro/main.htm 목적
실험 결과
1. Krypton
2. Hydrogen
3. Helium
4. Neon
결론 및 토의
참고문
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별의 진화에 대해서
1. 별의 형성(star formation)
2. 주계열 단계(main sequence stage)
3. 적색 거성열(red giant branch)
4. 헬륨섬광(helium flash)
5. 수평가지(horizontal branch stage)
6. 점근거성가지(asymptotic giant branch)
7. 맥동변광성(pulsating variable star)
8. 별의 죽음(d
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helium.
Period of Rotation: 25.4 days at equator, up to 30 days at poles. Mass: 333,000 x that of Earth. Diameter: 870,000 miles (1.4 million kilometers). Temperature: 27 million °F (15 million °C) in core; 11,000°F (6,100°C) at surface.
The Sun is only an average size, an average temperature. Lo
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Helium and Carbon Burning Reaction)
별이 수소기체를 다 태우고 난 다음에는 별의 핵은 더욱 딱딱해지며 온도 역시 올라가게 되는데(약 6*108 K; K는 켈빈온도를 나타냄) 이때부터 헬륨들이 융합하여 탄소를 만들어내는 반응이 일어난다. 그 반응은
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helium but with hot air; the pilot has a small propane burner to heat the air in the balloon. If the balloon is a sphere 20 m in diameter, and if the total weight of balloon, pilot, passenger compartment, propane burner, propane tank, ropes ect. is 200kg, what average temperature must the air in th
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