Adrenaline: (isolation of) John Jacob Abel, U.S., 1897. Aerosol can: Erik Rotheim, Norway, 1926. Air brake: George Westinghouse, U.S., 1868. Air conditioning: Willis Carrier, U.S., 1911.…
(Encyclopedia)
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Australia Australia ôstrālˈyə [key], smallest continent, between the Indian and Pacific oceans. With the island state of Tasmania to the south, the…
(Encyclopedia)
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Moon mission assembly
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Stages in a moon mission shown counterclockwise from launching on the first day to splashdown on the ninth day.
space exploration, the…
(Encyclopedia) American art, the art of the North American colonies and of the United States. There are separate articles on American architecture, North American Native art, pre-Columbian art and…
