Articles related to "Hipparchus"
Hipparchus Greek Astronomer
Hipparchus' precision and astronomical calculations led to his invention of trigonometry and discovery of precession, the compilation of the first Star Catalogue.
hipparchus • greek ancient astronomer • ancient astronomical observer • hipparchus precession • hipparchus compilation star catalogue
Hipparchus' precision and astronomical calculations led to his invention of trigonometry and discovery of precession, the compilation of the first Star Catalogue.
hipparchus • greek ancient astronomer • ancient astronomical observer • hipparchus precession • hipparchus compilation star catalogue
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'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
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
OK, So They Got It Wrong!
Even geniuses get it wrong sometimes.
thales • pythagoras • anaxagoras • hippocrates • democritus
Even geniuses get it wrong sometimes.
thales • pythagoras • anaxagoras • hippocrates • democritus
Supernova Destroys Star Rho Cas
10,000 light years away, the yellow hypergiant star, Rho Cassiopeiae ("Rho Cas" a type F8-G2 Ia0 star,) has a fantastic chance of already having blown itself apart.
rho cassiopeiae • supernova • hypergiant • constalation • milky way
10,000 light years away, the yellow hypergiant star, Rho Cassiopeiae ("Rho Cas" a type F8-G2 Ia0 star,) has a fantastic chance of already having blown itself apart.
rho cassiopeiae • supernova • hypergiant • constalation • milky way
Ptolemy and Geography
Ptolemy's geography contained many errors, but it also pioneered many concepts that we still use today.
ptolemy • claudius ptolemaeus • ptolemy's geography • latitude longitude • ancient greek
Ptolemy's geography contained many errors, but it also pioneered many concepts that we still use today.
ptolemy • claudius ptolemaeus • ptolemy's geography • latitude longitude • ancient greek
Ptolemy Astronomer Geographer
Ptolemy was an ancient Greek scholar who originated the Ptolemaic system in astronomy and made important contributions to geography and optics.
ptolemy • claudius ptolemaeus • ptolemaic astronomy • ptolemy's geography • latitude longitude
Ptolemy was an ancient Greek scholar who originated the Ptolemaic system in astronomy and made important contributions to geography and optics.
ptolemy • claudius ptolemaeus • ptolemaic astronomy • ptolemy's geography • latitude longitude
The Future of Education
Thomas Frey, founder of the DaVinci Institute in Colorado, has a strong vision of the future in education. It does not resemble what we see today.
future of education • electronics • davince institute • thomas frey • income tax system
Thomas Frey, founder of the DaVinci Institute in Colorado, has a strong vision of the future in education. It does not resemble what we see today.
future of education • electronics • davince institute • thomas frey • income tax system
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