User talk:TwoNames

Earwax edit
In physics, light can refer to the entire electromagnetic spectrum, not just the visible spectrum. Th4n3r (talk) 18:34, 21 April 2013 (UTC)

Radiation can be referred to the spectrum, not light as per:

PHOTOGRAPHY

ITS MATERIALS AND PROCESSES

by C. B. NEBLETTE, F.R.P.S., F.S.P.S.E., Hon.P.S.A.

Dean of the College of Graphic Arts and Photography Rochester Institute of Technology

SIXTH EDITION

Chapter 9

RADIATION SENSITIVE SYSTEMS

Radiation is defined as energy contained in the electromagnetic spectrum and light as those wave lengths to which the human eye, optic nerves, and brain are sensitive. TwoNames (talk) 19:06, 22 April 2013 (UTC)