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Tung Phan

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Ernst Abbe

Born 23 Jan 1840; died 14 Jan 1905 at age 64.German physicist who established a technical and theoretical foundation for the design of optical instruments. The Abbe sine condition enabled designing lenses without spherical aberation's image distortion. He invented the apochromatic lens system (1868), and added the Abbe condenser lens to improve illumination for the microscope (1870). He used homogenous immersion of specimen and microscope objective in cedar oil with matching refractive index to give higher magnification. He invented the Abbe refractometer to measure a refractive index. From 1866, he collaborated with Carl Zeiss to produce high quality optical instruments. He became sole owner of the Zeiss optical works in 1888. From 1878, he also was director of the University of Jena astronomical and meteorological observatories.«

Dennis Rodman

A woman is picked up by Dennis Rodman in a bar. They like each other and she goes back with him to his hotel room. He removes his shirt revealing all his tattoos and she sees that on his arm is one which reads, "Reebok". She thinks that's a bit odd and asks him about it. Dennis says, "When I play basketball, the cameras pick up the tattoo and Reebok pays me for advertisement."

A bit later, his pants are off and she sees "Puma" tattooed on his leg. He gives the same explanation for the unusual tattoo. Finally, the underwear comes off and she sees the word "AIDS" tattooed on his penis. She jumps back with shock..

"I'm not going to do it with a guy who has AIDS!"

He says, "It's cool baby, in a minute it's going to say "ADIDAS".

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