Despite being 5500 degrees Celsius, the sun produces very little ultraviolet light, producing mostly white light which is visible. During the end of the 19th century, scientists noticed that when they shined light onto a gold leaf electroscope, electricity could travel between two points more easily which suggested a correlation between light and electricity. Red light would not cause the gold leafs within the gold leaf electroscope to move but blue light rich in ultraviolet light immediately ca...
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