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Scientists: Physical Sciences

// Cite Astronomers, astrophysicists, chemists, and physicists Related Links Astronomy Astronomical Calendar Nobel Prize for Chemistry Nobel Prize…

The Hungry Stones: Once There Was a King

by Rabindranath Tagore The VictoryThe Home-ComingOnce There Was a King "Once upon a time there was a king." When we were children there was no need to know who the king in the fairy…

modem

(Encyclopedia) modem [modulator/demodulator], an external device or internal electronic circuitry used to transmit and receive digital data over a communications line normally used for analog signals…

drone

(Encyclopedia) drone or remotely piloted vehicle, a pilotless craft guided by remote control. Aircraft, ships, and land vehicles can be designed or outfitted as drones. Underwater vessels—both…

butterfly

(Encyclopedia) butterfly, any of a large group of insects found throughout most of the world; with the moths, they comprise the order Lepidoptera. There are about 12 families of butterflies. Most…

tsunami

(Encyclopedia) tsunamitsunamits&oobreve;näˈmē [key], series of catastrophic ocean waves generated by submarine movements, which may be caused by earthquakes, volcanic eruptions, landslides…

road

(Encyclopedia) road, strip of land used for transportation. The history of roads has been related to the centralizing of populations in powerful cities, which the roads have served for military…

magic, in entertainment

(Encyclopedia) magic, in entertainment, the seeming manipulation and supernatural control of the natural world for the amusement and amazement of an audience. Entertainment magic can be divided into…

migration of animals

(Encyclopedia) migration of animals, movements of animals in large numbers from one place to another. In modern usage the term is usually restricted to regular, periodic movements of populations away…