Theory of Spectra: the Quantum Atom

• Balmer spectra: in laboratory, in space--seagull nebula
• de Broglie: matter waves
• Bohr model of the atom, origin of quantized levels
• Hydrogen spectrum, binding energy

Continuous Radiation and Blackbody Spectra: Light as a Thermometer

• blackbody spectra
• one canine example; others; IR world gallery
• Wien's law
  spectrum of the Sun
  Orion colors
  starlight spread out: objective prism images of the Hyades star cluster
• Stefan-Boltzmann law

Hour Exam 1 Review