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larkspur, in botany

(Encyclopedia) larkspur, any north temperate, Old World annual of the genus Consolida of the buttercup family. Consolida species were formerly classified in the genus Delphinium, which includes…

color index

(Encyclopedia) color index, in astronomy, difference in an object's brightness as recorded between any two well-defined bands of the electromagnetic spectrum by using optical filters of different…

turquoise

(Encyclopedia) turquoise, hydrous phosphate of aluminum and copper, Al2(OH)3PO4·H2O+Cu, used as a gem. It occurs rarely in crystal form, but is usually cryptocrystalline. Turquoise is opaque and has…

Spode, Josiah, I

(Encyclopedia) Spode, Josiah, I, 1733–97, English potter. He founded a pottery firm in 1770 at Stoke-on-Trent in the Staffordshire pottery district. Creating many of his patterns after Japanese…

Spectral Classes for Main Sequence Stars (table)

(Encyclopedia) Characteristics of Spectral Classes for Main Sequence Stars Class Color Surface Temperature Strong Lines O blue-white 35,000℃ ionized helium B blue-white 21,000℃ helium A white…

beryl

(Encyclopedia) berylberylbĕrˈĭl [key], mineral, a silicate of beryllium and aluminum, Be3Al2Si6O18, extremely hard, occurring in hexagonal crystals that may be of enormous size and are usually white…

South Carolina

South Carolina State Facts Entered Union: May 23, 1788 (8th State) Present constitution adopted: 1895 Fun Facts State abbreviation/Postal code: S.C./SC Nickname: Palmetto State Origin of…

What Colors Mean

We live in a colorful world. In many countries, colors represent various holidays; they are also used to express feelings and enliven language. Find your favorite color and see what it means…

Super PACs Explained

The evolution of the new political action committees that have altered the course of political campaigns Related Links How a…