In 1848, French physicist Hippolyte Fizeau observed that the spectral lines of stars were shifted from their expected positions. This discovery showed that light, like sound, experiences a Doppler effect. When stars move toward us, their light shifts toward blue; when they move away, it shifts toward red. This insight became foundational for modern astronomy, allowing scientists to measure stellar motion and, eventually, the expansion of the universe.
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Doppler Effect Observed for Stars
By Michael Alan Prestwood
Fri 10 May 2024
Published 2 years ago.
Updated 2 months ago.
Light Waves
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Doppler Effect Observed for Stars
1848
— map / TST —
Michael Alan Prestwood
Author & Natural Philosopher
Author & Natural Philosopher
Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.
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