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

Doppler Effect: Light as a Speedometer

• animation

Telescopes: Reading the Cosmic Code

• Light collection: HST primary mirror; Keck primary mirror
• Telescope power (HST, Keck)
  the accursed atmosphere: twinke twinkle
• Light detection: CCD for (Hubble, Pan-STARRS, LSST)
• Invisible astronomy

  Radio (CARMA [under construction], VLA, Arecibo)

  X-ray (Chandra, XMM-Newton)

  Infrared (Spitzer, Sofia, James Webb Space Telescope [under construction])