Re: Shingle Color Choice. Just some additional food for thought from the FSEC. This is just one paragraph out of a 67 page report. I disagree with the final findings of this labratory approach method of determining heat gain or loss dependant upon shingle color alone.
Definition of concrete. 1 : naming a real thing or class of things the word poem is concrete, poetry is abstract. 2 : formed by coalition of particles into one solid mass. 3a : characterized by or belonging to immediate experience of actual things or eventsb : specific, particular a concrete proposalc : real, tangible concrete evidence.
n. 1 a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable. in ``y = f(x)'', ``y'' is the dependent variable. 2 (Psychol, statistics) the variable measured by the experimenter. It is controlled by the value of the independent variable, of which it is an index. English Collins Dictionary-English Definition & Thesaurus &nbsp. See also: dependent clause, dependent variable, dependently, dependant. bad day for science. bad day for science. exp. expression used when nothing is going well.