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Srdjan Cvetanovic

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Johann Wilhelm Ritter

Died 23 Jan 1810 at age 33 (born 16 Dec 1776).German physicist who discovered the ultraviolet region of the spectrum (1801) and thus helped broaden man's view beyond the narrow region of visible light to encompass the entire electromagnetic spectrum from the shortest gamma rays to the longest radio waves. After studying Herschel's discovery of infrared radiation, he observed the effects of solar radiation on silver salts and deduced the existence of radiation outside the visible spectrum. He also made contributions to spectroscopy and the study of electricity.

Blind date

How was your blind date?" a college student asked her roommate.

"Terrible!" the room-mate answered. "He showed up in his 1932 Rolls Royce."

"Wow! That's a very expensive car. What's so bad about that?"

"He was the original owner."

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