Monday, January 12, 2009

Flash Facts: The Spectroscope

"The Spectroscope--an instrument for detecting the spectra of stars--can also be used to measure the speed of stars, in conjunction with the Doppler Effect. According to this physical law, when a star approaches the Earth, all the lines of the spectrum shift toward the violet end; if a star is speeding away from the Earth, the spectral lines shift toward the red zone."

Issue: The Flash #106 (April-May 1959)

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