Demos by PIRA

6B10 Luminosity

  6B10.20Inverse square law: Light bulb in wire frame.

6B30 Radation Pressure

6B40 Blackbodies

  6B40.20Box with white interior appears black from hole in the side.
  6B40.41Detection of the IR, visible, and UV spectra using arc lamp on TV camera.
  6B40.41Detection of the IR, visible, and UV spectra using arc lamp.
  6B40.55As light bulb filament increases temp. its spectrum shifts red to blue.