The Electromagnetic Spectrum
http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
Energy Interactions
http://www.geo.mtu.edu/rs/back/energy/
The Quantum Age Begins
http://www.gap-system.org/~history/HistTopics/The_Quantum_age_begins.html
Gustav Robert Krichhoff
http://en.wikipedia.org/wiki/Gustav_Kirchhoff
Max Karl Ernst Ludwig Planck
http://en.wikipedia.org/wiki/Planck's_law
Planck's Theory of Blackbody Radiation
http://en.wikipedia.org/wiki/Planck's_law
Niels Henrik David Bohr
http://www.britannica.com/EBchecked/topic/71670/Niels-Bohr
What Is Emisivity?
http://www.npl.co.uk/server.php?show=ConWebDoc.2148
Blackbody Radiation
http://www.egglescliffe.org.uk/physics/astronomy/blackbody/bbody.html
Principles of Autocollimation
http://www.davidsonoptronics.com/poa.htm
Calculators Galore!!! Calculators for just about anything
http://www.martindalecenter.com/Calculators.html
Link to Useful Physics Page
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
Wikepedia.com
http://en.wikipedia.org/wiki/Main_Page