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navigation satellite

(Encyclopedia) navigation satellite, artificial satellite designed expressly to aid the navigation of sea and air traffic. Early navigation satellites, from the Transit series launched in 1960 to the…

Bruno, Giordano

(Encyclopedia) Bruno, GiordanoBruno, Giordanojōrdäˈnō br&oomacr;ˈnō [key], 1548–1600, Italian philosopher, b. Nola. The son of a professional soldier, he entered the Dominican order early in his…

Brewer's: Motion

The laws of motion, according to Galileo and Newton. (1) If no force acts on a body in motion, it will continue to move uniformly in a straight line. (2) If force acts on a body, it will…

Brewer's: Copernicanism

The doctrine that the earth moves round the sun, in opposition to the doctrine that the sun moves round the earth; so called after Nicolas Copernicus, the Prussian astronomer. (1473-1543…

Scientists: Physical Sciences

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

Brewer's: Science Persecuted

(1) Anaxagoras of Clazomenae held opinions in natural science so far in advance of his age that he was accused of impiety, thrown into prison, and condemned to death. Pericles, with great…

Millennium Milestones

The 100 Most Significant Events of the Last Thousand Years Reducing the millennium to a laundry list of highlights cannot pretend to be a definitive or accurate exercise. Note that only…

Scientists: Applied Sciences and Technology

Agriculturalists, computer scientists, electrical engineers, engineers, and inventors Related Links Computers and the Internet Inventions and Discoveries Inventors Hall of Fame…