Brush Arc Lights in Wanamaker's Department Store - Quotations
Brush Arc Lamp
First Electric Lights in an American Store
(installed 26 Dec 1878)

Brush arc lights in Wanamaker's department store in Philadelphia.

“Miniature moons on carbon points, held captive in glass globes.”
A description of the "wonder of 1878":
an installation of Brush arc lamps in the window of
Wanamaker's department store in Philadelphia

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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