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Introduction
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Classroom Contents
The Story of Helium and the Birth of Astrophysics by Biman Nath
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- 1 Introduction
- 2 Helium and Discovery
- 3 Johnson noticed
- 4 French article
- 5 Dark lines
- 6 Front hopper spectrum
- 7 Bright and dark lines
- 8 Blackbody
- 9 Sunspot
- 10 James Francis Tennant
- 11 Norman Block
- 12 Solar storms
- 13 John Herschel
- 14 A colorful language
- 15 His own initiative
- 16 Descending on Guntur
- 17 Eclipse
- 18 Hand Painted Spectrum
- 19 Perpetual Eclipse
- 20 chromosphere
- 21 Edward Franklin
- 22 Charles Young
- 23 D3 Line
- 24 The Problem
- 25 The Criticism
- 26 Total Solar Eclipse
- 27 Johnson in India
- 28 Venus Transit
- 29 Huggins and Loeb
- 30 Helium on Earth
- 31 Two Types of Helium
