article_snippet: modern man has learned much from studying eclipses.
article_snippet: On August 18, 1868, the French astronomer Pierre Janssen observed that day’s total eclipse through a spectrometer, which measures light waves.
article_snippet: But the most crucial scientific finding made during an eclipse was the confirmation of Einstein’s General Theory of Relativity, which predicted that light from stars would bend as it passed the Sunthe Sun.
article_snippet: In 1919, British astrophysicist Arthur Eddington photographed the positions of the stars around the Sun the Sun during an eclipse and then photographed them at night.
article_snippet: British astrophysicist Arthur Eddington found that the light from the stars had shifted, which supported his father’s .