Searching for signs of life on the Red Planet
by Holly Poulos
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(Encyclopedia) decay of organic matter or putrefaction, process whereby heterotrophic organisms, including some bacteria, fungi, saprophytic plants, and lower animals, utilize the remains of once-…
(Encyclopedia) Reformed churches, in a general sense, all Protestant churches that claim a beginning in the Reformation. In more restricted and more usual historical usage, Reformed churches are…
Uncovering African RootsDNA Tests, New Technology Reveal African Heritage
Photograph of slave cabin and occupants near Eufala, Alabama. (Source: Library of Congress) NOT LONG AGO, an…
HOW DO SATELLITES STAY UP IN SPACE? SATELLITE ORBITSFIND OUT MOREA spacecraft that travels in a steady path, or orbit, around Earth is called a satellite. Satellites receive and send on…
(Encyclopedia) harvester, farm machine that mechanically harvests a crop. Small-grain harvesting has been mechanized to a certain extent since early times. In the modern period the first harvester to…
(Encyclopedia) TheodoretTheodoretthēŏdˈərĕt [key], c.393–c.458, Syrian churchman and theologian. He was a monk of Apamaea and a lifelong friend of Nestorius. In 423 he went unwillingly to be bishop…
(Encyclopedia) reaper, early farm machine drawn by draft animals or tractor and used to harvest grain. Its historical predecessors were the sickle and the cradle scythe, which are still used in some…
(Encyclopedia) Xerxes I (Xerxes the Great)Xerxes Izûrkˈsēz [key], d. 465 b.c., king of ancient Persia (486–465 b.c.). His name in Old Persian is Khshayarsha, in the Bible Ahasuerus. He was the son of…
(Encyclopedia) BithyniaBithyniabĭthĭnˈēə [key], ancient country of NW Asia Minor, in present-day Turkey. The original inhabitants were Thracians who established themselves as independent and were…
