Recent content by Andrew Church
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I Composition of the Sun: How We Know via Spectral Absorption Lines
Sorry, ment to say I’m NOT after a complete answer, relevant texts ok. But, don't you think it strange logic, there was an entire forum on physics forum about “how do we know the composition of the sun” and no one asked or explained the proportions? I mean, you cannot know the composition if...- Andrew Church
- Post #5
- Forum: Astronomy and Astrophysics
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I Composition of the Sun: How We Know via Spectral Absorption Lines
How is there an intensity of black absorbsion lines? I got to 2nd year uni physics, I can give a kindagarten version of how/why we get emission and absorption lines from a hydrogen atom. When someone asks me “how do we know composition of the sun” I want to be able to give a complete...- Andrew Church
- Post #3
- Forum: Astronomy and Astrophysics
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I Composition of the Sun: How We Know via Spectral Absorption Lines
The question “how do we know the composition of the sun” falls shorts everywhere I look. 1. There is the spectral absorption lines. Explanations given how that works, indicate how we know the elements, but fails to tell us how we know about the preponderance of Hydrogen and Helium...- Andrew Church
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- Astronomy Astrophysics Composition Ionization energy Spectral analysis Spectral lines Sun The sun
- Replies: 10
- Forum: Astronomy and Astrophysics
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Thermal Physics Expansion Coefficient Problem
everyone's copied the mistake in the Schroeder text, the given beta value is fine, but has nothing to do with 1/550000 unless you multiply by 102 http://physics.weber.edu/thermal/errors.html- Andrew Church
- Post #14
- Forum: Introductory Physics Homework Help