Radiation (C+65)

  C+65+0 Concave mirrors focus candle flame on thermopile across bench.
  C+65+2 Light the Match.
  C+65+5 Computer demo: Kirchhoff's radiation law, runs 15 min.
  C+65+10 Large transformer heats metal strip with chalk marks on it.
  C+65+15 Crooke's radiometer with flashlight, arc lamp or IR source.
  C+65+20 Box with white interior appears black from hole in the side.
  C+65+25 FLIR T200 Infrared camera
  C+65+30 Blackbody color change as temperature increases
  C+65+40 Applet: Blackbody Spectrum