Examlex
Future space stations will create an artificial gravity by rotating.Consider a cylindrical space station 390 m diameter rotating about its central axis.Astronauts walk on the inside surface of the space station.What rotation period will provide "normal" gravity?
Railroad Cars
The wheeled vehicles used for the transport of goods or passengers on a railway track.
NAACP
The National Association for the Advancement of Colored People, a civil rights organization founded in 1909 to fight prejudice, lynching, and Jim Crow segregation.
Bull Moose
Refers to the Progressive Party of 1912 in the United States, symbolized by a bull moose, led by Theodore Roosevelt after a split in the Republican Party.
Progressive Republicans
A faction within the Republican Party in the early 20th century that advocated for reforms including anti-corruption measures, environmental conservation, and worker's rights.
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