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skiagraph

(Encyclopedia) skiagraph: 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.

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 (…

Volcanic Eruption Under Ice

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

DK Science & Technology: Lenses

WHAT DOES A LENS DO? WHAT IS THE DIFFERENCE BETWEEN A MICROSCOPE AND A TELESCOPE? CONVEX LENSCONCAVE LENSFIND OUT MOREWhen you look through a magnifying glass, or take a picture with a camera, you…

Women in Entertainment | Musicians and Dancers

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

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…

Bodley, George Frederick

(Encyclopedia) Bodley, George FrederickBodley, George Frederickbŏdˈlē [key], 1827–1907, English architect. One of the most prominent and prolific ecclesiastical architects, Bodley was a pupil of Sir…