Dr. Alan J. Scott , Department of Physics, University of Wisconsin-Stout.

http://physics.uwstout.edu/staff/scott/
animate.html#planck

This animation describes the intensity of the Black Body Radiation as a function of wavelength. Watch the scale on the vertical axis. The relative size of the curves are drastically different at 1,000 C and 10,000 C.

Dr. Scott has a collection of animations called On-line Animations of Time Evolving Physical Systems.