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Giving Pledge Participants
The United States is home to roughly 40% of the world's billionaires. About 10% of America's richest citizens have committed to participate in the Giving Pledge and donate…color
(Encyclopedia) color, effect produced on the eye and its associated nerves by light waves of different wavelength or frequency. Light transmitted from an object to the eye stimulates the different…Shimomura, Osamu
(Encyclopedia) Shimomura, Osamu, 1928–2018, Japanese organic chemist and marine biologist, Ph.D. Nagoya Univ., 1960. Shimomura was a researcher at Princeton (1960–82) and a professor (1982–2001)…leaf insect
(Encyclopedia) leaf insect, common name given to herbivorous insects of leaflike appearance forming a single family in the order Phasmida. Leaf insects are green and have extremely flattened,…emerald
(Encyclopedia) emerald, the green variety of beryl, of which aquamarine is the blue variety. Chemically, it is a beryllium-aluminum silicate whose color is due to small quantities of chromium…Stowe, Harriet Beecher
(Encyclopedia) Stowe, Harriet Beecher, 1811–96, American novelist and humanitarian, b. Litchfield, Conn. With her novel Uncle Tom's Cabin, she stirred the conscience of Americans concerning slavery…Potter's Bar
(Encyclopedia) Potter's Bar, town (1991 pop. 22,755), Hertfordshire, central England, in the Midlands. Potter's Bar is a residential district, most of which is within the Green Belt Zone barred to…jasper, type of quartz
(Encyclopedia) jasper, opaque, impure cryptocrystalline quartz, usually red, but also yellow, green, and grayish blue. It is used as a gem. Ribbon jasper has the colors in stripes.Notre Dame Mountains
(Encyclopedia) Notre Dame Mountains, section of the Appalachian system, extending c.500 mi (800 km) from the Green Mts. of Vermont into the Gaspé Peninsula, Canada. Worn low by erosion, the ancient…bloodstone
(Encyclopedia) bloodstone or heliotrope, green chalcedony spotted with red, used as a gem stone. It is found in India, the United States, Brazil, and Australia.Trending
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