United States or Nicaragua ? Vote for the TOP Country of the Week !
One-hundred-inch mirror, just silvered, rising out of the silvering-room in pier before attachment to lower end of telescope tube. In 1906 the late John D. Hooker, of Los Angeles, gave the Carnegie Institution of Washington a sum sufficient to construct a telescope mirror 100 inches in diameter, and thus large enough to collect 160,000 times the light received by the eye. Gobain.
Word Of The Day