(Encyclopedia)
CE5
Ordinary light sources produce incoherent light, while a laser produces a beam of coherent light.
laser [acronym for light amplification by stimulated emission of radiation],…
(Encyclopedia) lightning, electrical discharge accompanied by thunder, commonly occurring during a thunderstorm. The discharge may take place between one part of a cloud and another part (intracloud…
FILTER FEEDERAFRICAN LUNGFISHJAWLESS LAMPREYFISHFIND OUT MOREFish are water animals that evolved about 500 million years ago. They were the first animals to have an internal skeleton. Most fish…
Government's actions worrisome by Mark Zurlo Related Links OlympicsTorino 2006 Winter OlympicsSummer Olympics Through the YearsAthens 2004 Olympic Games Strikingly…
From the father of the skyscraper to a building with a view by Karen Barss The Eiffel Tower, in Paris, France Related Links Skyscraper HistoryTallest Building TimelineWorld's…
"Open" for Business — Tennis (1968) Cause: Tennis was split between two parties - amateurs and professionals - and each had what the other wanted. The amateurs were playing in the…
(Encyclopedia) Clostridium, genus of gram-positive bacteria (see Gram's stain), several species of which cause significant, potentially deadly diseases in humans as a result of the toxins that each…
(Encyclopedia) wire, metal filament, strand, or solid rod usually having a round cross section. Metals and alloys used for wiremaking are chosen for high tensile strength and ductility or for their…
CLASSIFICATIONFIND OUT MOREAnimals belong to the largest and most diverse of the five kingdoms of living things. So far over two million animal species have been identified. All animals…
