THERMAL motions cause charges to ACCELERATE, producing
RADIATION*.
A plot of INSTENSITY of radiation vs. WAVELENGTH is a BLACK BODY CURVE.
Although EVERYTHING RADIATES to some degree, we DO NOT see most objects'
radiation -- at room temp., energy of this radiation is below the human visible range -- as a
good web page on spectra illustrates*.
Perception of thermal radiation:
other web pages:
http://www.vcu.edu/hasweb/phy/mod/116/xmp3.htm#3
http://jersey.uoregon.edu/vlab/PlankRadiationFormula/index.html>