Barometric light is a name for the light that is emitted by a mercury-filled barometer tube when the tube is shaken. The discovery of this phenomenon in 1675 revealed the possibility of electric lighting.
Read more about Barometric Light: The Phenomenon and Its Explanation, History
Famous quotes containing the word light:
“A noble company gathered to develop a society that would create harmony, love, and usefulness. Now I sit on the grave of great hopes.... I look back to see a light that went out from it—small, but bright and pure and true.”
—Rebecca Buffum Spring (1811–1911)