Articles related to "Equant"



Ptolemaic Geocentric Astronomy
Ptolemy's geocentric astronomical system used four geometric devices, the deferent, epicycle, eccentric, and equant, to explain the observed motions of the planets.
ptolemy ptolemaic astronomy hipparchus equant epicycle

Ptolemy, Astronomy, & Almagest
Ptolemy's geocentric astronomical system placed Earth at the center of the universe and he was considered the ultimate authority in astronomy for about 1400 years.
ptolemy claudius ptolemaeus ptolemaic astronomy hipparchus equant

Applications for Rent
A new breed of intermediaries, the Application Service Providers, is redefining the IT landscape.
application service providers asp rental subscription fees


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