Direct Chemical
- Chemoluminescence (Lightsticks)
- Fluorescence
- Phosphorescence
Read more about this topic: Light Sources
Famous quotes containing the words direct and/or chemical:
“The fate of our times is characterized by rationalization and intellectualization and, above all, by the “disenchantment of the world.” Precisely the ultimate and most sublime values have retreated from public life either into the transcendental realm of mystic life or into the brotherliness of direct and personal human relations. It is not accidental that our greatest art is intimate and not monumental.”
—Max Weber (1864–1920)
“We are close to dead. There are faces and bodies like gorged maggots on the dance floor, on the highway, in the city, in the stadium; they are a host of chemical machines who swallow the product of chemical factories, aspirin, preservatives, stimulant, relaxant, and breathe out their chemical wastes into a polluted air. The sense of a long last night over civilization is back again.”
—Norman Mailer (b. 1923)