(Encyclopedia) Doolittle, James Harold, 1896–1993, American aviator, b. Alameda, Calif. After serving in World War I as a flier he returned to school and earned a Sc.D. from MIT. He then became noted…
(Encyclopedia) serval, medium-sized African cat, Leptailurus serval, found S of the Sahara in scrub country close to water. The serval is lightly built with very long legs; it has a small head with…
River BlindnessTropical DiseasesIntroductionLeishmaniasis: The Sand Fly's BugGiardiasis: A One-Celled WonderSchistosomiasis: Snail FeverAfrican Sleeping SicknessRiver Blindness River blindness is…
HOW ARE BIRDS’ BODIES DESIGNED FOR FLIGHT? HOW DO FEATHERS HELP BIRDS FLY? CAN ALL BIRDS FLY? WHAT DO BIRDS EAT? FOOT SHAPESBIRD CLASSIFICATIONNESTSMIGRATIONFIND OUT MOREBirds have wings covered…
(Encyclopedia) Rickenbacker, Edward Vernon, 1890–1973, American war hero and airline executive, b. Columbus, Ohio. He became a car racing driver at 16 and set numerous speed records. In World War I…
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CE5
Types of buttresses
buttress, mass of masonry built against a wall to strengthen it. It is especially necessary when a vault or an arch places a heavy load or thrust on one part…
Similarities between Compsognathus and ArchaeopteryxEfficient hunterCompsognathus skeletonFlying dinosaurArchaeopteryx skeletonModern birdThere are dinosaurs flying in our skies today – despite…
(Encyclopedia) seaplane, airplane designed to take off from and alight on water. The two most common types are the floatplane, whose fuselage is supported by struts attached to two or more pontoon…
(Encyclopedia) Virginius affair, 1873, incident that came near to causing war between the United States and Spain. The Virginius, a filibustering ship, was fraudulently flying the American flag and…
