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radiography

(Encyclopedia) radiography: see X ray.

Einstein Observatory

(Encyclopedia) Einstein Observatory: see X-ray astronomy.

Wray, John

(Encyclopedia) Wray, John: see Ray, John.

Grayson, David

(Encyclopedia) Grayson, David: see Baker, Ray Stannard.

Volcanic Eruption Under Ice

by Liz Olson Related Links Antarctica Global Warming Volcanic Eruptions Volcanoes of the World Types of…

Figures and Legends in American Folklore

Appleseed, Johnny (John Chapman, 1774–1847): Massachusetts-born nurseryman; reputed to have spread seeds and seedlings out of which grew the apple orchards of the Midwest. Billy the Kid (William…

Women in Entertainment | Musicians and Dancers

Adele Biographies ofNotable Women Actresses Adventurers Artists Athletes Businesswomen Comediennes Congresswomen Educators and Scholars Fashion Designers and Models Literary…

polarization of light

(Encyclopedia) polarization of light, orientation of the vibration pattern of light waves in a singular plane. Unpolarized light can be converted into a single polarized beam by means of the Nicol…

Texas

Texas State Facts Entered Union: Dec. 29, 1845 (28th State)Organized as republic: 1836Present constitution adopted: 1876 Fun Facts State abbreviation/Postal code: Tex./TXNickname: The Lone Star…

Black Musicians

Notable African-American Musicians The following list includes African-American singers, composers, rappers, pianists, and other musicians who have contributed to the world of music,…