The smoke signal is one of the oldest forms of long-distance communication. It is a form of visual communication used over long distance.
Read more about Smoke Signal: History and Usage
Famous quotes containing the words smoke and/or signal:
“Heap up great wealth in your house, if you wish, and live as a tyrant, but, if the enjoyment of these things be lacking, I would not buy the rest for the shadow of smoke as against happiness.”
—Sophocles (497–406/5 B.C.)
“A signal is comprehended if it serves to make us notice the object or situation it bespeaks. A symbol is understood when we conceive the idea it presents.”
—Susanne K. Langer (1895–1995)