The collodion process used wet plates, which were glass plates that had been covered with a mixture of chemicals before being placed in the camera for the exposure.

What is a costume plot? why is it important to a film or theater production?

Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)

"if the pressure acting on an ideal gas at constant temperature is tripled, its volume isa) reduced to one-third.b) increased by a factor of three.c) increased by a factor of two.d) reduced to one-half"