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:
“Go where he will, the wise man is at home,
His hearth the earth,—his hall the azure dome;
Where his clear spirit leads him, there’s his road,
By God’s own light illumined and foreshadowed.”
—Ralph Waldo Emerson (1803–1882)