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life preserver

(Encyclopedia) life preserver, a personal flotation device (PFD) intended to keep the wearer afloat, particularly in case of shipwreck. A Type I PFD will keep even unconscious people afloat in a face…

half-life

(Encyclopedia) half-life, measure of the average lifetime of a radioactive substance (see radioactivity) or an unstable subatomic particle. One half-life is the time required for one half of any…

still life

(Encyclopedia) still life, a pictorial representation of inanimate objects. The term derives from the 17th-century Dutch still-leven, meaning a motionless natural object or objects. In East Asia…

Gay, Sidney Howard

(Encyclopedia) Gay, Sidney Howard, 1814–88, American abolitionist and publisher, b. Hingham, Mass. Following several failed business ventures, he was drawn to the work of the abolitionists and moved…

imam

(Encyclopedia) imamimamĭmämˈ [key] [Arab.,=leader], in Islam, a recognized leader or a religious teacher. Among the Sunni the term refers to the leader in the Friday prayer at the mosque; any pious…

Frank, Anne

(Encyclopedia) Frank, Anne, 1929–45, German diarist, b. Frankfurt as Anneliese Marie Frank. In order to escape Nazi persecution, her family emigrated (1933) to Amsterdam, where her father Otto became…

Queen Elizabeth II: Reign and Life

Top of Page Source: iStockHer Majesty Queen Elizabeth II was born on April 21st, 1926, and died on September 8th, 2022, aged 96. This marks the end of the longest-reigning British monarch and the…

Schuylkill

(Encyclopedia) SchuylkillSchuylkillsk&oomacr;lˈkĭlˌ, sk&oomacr;ˈkəl [key] [Du.,=hidden creek], river, c.130 mi (210 km) long, rising in Schuylkill co., E central Pa. and flowing generally SE…

Charter Oak

(Encyclopedia) Charter Oak, white oak tree that until 1856 stood in Hartford, Conn., and was thought to be 1,000 years old. There is a tradition that when Sir Edmund Andros, as governor-general of…

Rathlin Island

(Encyclopedia) Rathlin IslandRathlin Islandrăthˈlĭn [key], 5 sq mi (13 sq km), Moyle dist., N Northern Ireland. Its cliffs, of limestone and basalt, rise at Slieveacarn to 449 ft (137 m). Farming and…