(Encyclopedia) Wilson, Robert Woodrow, 1936–, American radio astronomer, b. Houston, Tex., Ph.D. California Institute of Technology, 1962. In 1964 he and co-researcher Arno Penzias began monitoring…
(Encyclopedia) hat, headdress developed from the simple close-fitting cap and hood of antiquity. The first hat, which was distinguished as such by having a brim, was the felt petasus of the Greeks,…
The Digestive SystemAnatomy and PhysiologyThe Digestive SystemStops Along the WayIt's a Long Way DownJack-of-All-TradesRunning Along the TractPancreatic Panacea?What We Do with Our Food We are…
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It can be difficult to keep kids engaged in activities outdoors while still maintaining their interest. Kids today are incredibly engrossed in playing games or watching videos on…
No Place Like Home?Classical MythologyCrimes of Passion: Jason, Medea, and the ArgonautsAssembling the ArgonautsIn Search of AdventureWitch Way to the Golden FleeceCrime and Punishment: The Long Way…
ONE-WAY BENEFITTWO-WAY BENEFITMARINE COMMUNITYFIND OUT MOREA community consists of a number of different populations that interact with one another. Because environments vary considerably in…
Conjunctions connect words or groups of words.Coordinating Conjunctions A coordinating conjunction is a word that connects two words or two groups of words that are used in the same way—that is,…
IntroductionGenetic Variation and Natural SelectionIntroductionNatural SelectionPost-Mendelian Inheritance FactorsThis section captures some of the ideas from the previous sections and relates them…
How a Film is MadeMovies and FilmHow a Film is MadeDevelopment: Birth of a NotionPreproductionThe Big ProductionPostproductionSome Films Worth Viewing So how does a film get made? What are the…
