Which of the following statements about the extruder in a 3D printer is TRUE?
A.) The extruder ensures the material does not get too hot to print the 3D
object.
B.) The extruder melts the material and places it on the correct spot.
C.) The extruder is powered by a motor
that guides the material out at the correct rate.
D.) All of the above

satin. 

"very shiny satin may look great in the fabric store or in the sewing room, but once onstage it can look fake and cheap as it reflects the light from the fixtures."

photography had emerged as an elite art pursued by a few creative individuals for a few wealthy patrons. but now, said bauldelaire, it was succumbing to "the great industrial madness of our times." it was becoming a mass production industry that catered to middle-class tastes, including a taste for gadgetry. the stereoscope, the first 3d imaging system, had turned looking at photographs into parlor entertainment. a "thousand hungry eyes were bending over the peepholes of the stereoscope as though they were the attic-windows of the infinite.

your answer would be d.)