Science: Mathematics: Mathematicians: Hipparchus - Open Site hipparchus of Nicaea or hipparchus of Bithynia was born in 190 BC in the town ofNicaea in Bithynia (now the city of He spent a lot of his life in rhodes. http://open-site.org/Science/Mathematics/Mathematicians/Hipparchus/
Hipparcos Ipparco Di Nicea Roma Astronomia If these are indeed as they appear we can say with certainty that hipparchus wasin Alexandria in 146 BC and in rhodes near the end of his career in 127 BC and http://diamante.uniroma3.it/hipparcos/chi_era_hipparcos2.htm
Extractions: Now reasonably enough Hipparchus is often referred to as Hipparchus of Nicaea or Hipparchus of Bithynia and he is listed among the famous men of Bithynia by Strabo, the Greek geographer and historian who lived from about 64 BC to about 24 AD. There are coins from Nicaea which depict Hipparchus sitting looking at a globe and his image appears on coins minted under five different Roman emperors between 138 AD and 253 AD.
- Great Books - hipparchus (Greek Hipparcos), Greek astronomer, mathematician and geographer, born190 BC in modern day Turkey, died 120 BC, probably the island of rhodes. http://www.malaspina.com/site/person_639.asp
Extractions: Hipparchus (Greek: Hipparcos), Greek astronomer, mathematician and geographer, born: 190 B.C., Antigoneia since the year 30 Nicaea (Greek: Nikaia ) when Cisimah gave its name, ancient district Bithynia, (modern-day Iznik) in province Bursa, in modern day Turkey, died: 120 B.C., probably the island of Rhodes. The exact dates of his life are not known for sure, but he is believed to have observed from 162 to 126 B.C. Date of his birth was calculated by J. B. J. Delambre, based on clues in his work. We don't know anything about his youth either. Most of what is known about Hipparchus is from Strabo 's Geographica (Geography), from Pliny the Elder's Naturalis historia (Natural sciences) and from Ptolemy 's Almagest . He probably studied in Alexandria. His main original works are lost. His only preserved work is the Commentary on Aratus , a commentary on a poem by Aratus which describes the constellations and the stars which comprise them. This work contains many measurements of stellar positions. For his accession he holds the place of originator and father of scientific astronomy. He is believed to be the greatest Greek astronomer observer and he is at the same time entitled the greatest astronomer of ancient times, although Cicero still though about Aristarchus of Samos. Some put on this place also
Science In Christian Perspective in the time of Callippus and developed further by Apollonius in Alexandria duringthe second half of the third Century BC, by hipparchus at rhodes a century http://www.asa3.org/ASA/PSCF/1973/JASA3-73Leith.html
Extractions: The year of 1973 has been designated Copernican Year in honor of the 500th anniversary of the birth of Copernicus M 1473. In keeping with this commemoration, the journal ASA offers o four-port publication of a paper presented by T. H. Leith at the 1972 Convention of the American Scientific Affiliation at York University. The Copernican revolution began in the first decade of the Sixteenth century in an unpublished manuscript, entitled the Commentary, by a rather obscure household physician in a bishop's palace in northern Europe. Some thirty years later the seeds of its heliocentric reformation of astronomy were to find a stony reception in the minds of two other reformers: Luther called its author a fool and Melanchthon was prodded by it to remark that "wise governments ought to repress the impudence of the intellectuals ". In 1543 there appeared in print Copernicus' full defence of his unsettling scheme, the Revolutions of the Heavenly Spheres.
Encyclopedia: Hipparchus at 5h after sunrise) hipparchus may have visited Alexandria but he did not makehis equinox observations there; presumably he was on rhodes (at the same http://www.nationmaster.com/encyclopedia/Hipparchus
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HIPPARQUE (of Nicée); 190-120 Av. JC; Greek He observed between 146 and 127BC from the city of rhodes and his cataloguementions the nebulae M44 and the Perseus double cluster. http://www.astrosurf.com/cielextreme/page98E.html
Extractions: This greek philosopher compiled the first catalogue of stars (at least the first we keep the trace of) containing about a thousand. He observed between 146 and 127BC from the city of Rhodes and his catalogue mentions the "nebulae" M44 and the Perseus double cluster. He introduced the notion of magnitude to estimate stars' brightness. The catalogue of PTOLEMY is largely inspired by this catalogue.
Lecture 6: Brightnesses Of Stars (DePoy/Au98) Magnitude System. Traditional system dating to classical times (Hipparchusof rhodes, c. 300BC). Rank stars into 1st, 2nd, 3rd, etc. magnitude. http://www-astronomy.mps.ohio-state.edu/~depoy/courses/AST162_LECTURE_NOTES/Unit
Extractions: Stellar Brightness Apparent Brightness of a star depends upon Inverse Square Law of Brightness We must define "Brightness" quantitatively. Two ways to quantify brightness: Intrinsic Luminosity: Measures the Total Energy Output. Apparent Brightness: Measures how bright it appears to be as seen from a distance. Luminosity is the total energy output from an object. Important for understanding the energy production of a star. Measure of how bright an object appears to be to a distant observer. What we measure here on earth ("observable"). Measured in Flux Units Depends on the Distance to the object.
PRECALCULUS Describe the life and mathematical contributions to trigonometry of Hipparchusof rhodes (190 BCE120 BCE). STUDY CALENDAR. BLK DAY TEXTBOOK HOMEWORK. http://www.pres-net.com/academics/teachers/calendars/room25_precalculus_cal.htm
Extractions: DR. HOWE CONTENT OUTLINE. The content of this unit of study is as follows: Geometric Vectors Algebraic Vectors Vectors in Three-Dimensional Space Perpendicular Vectors Applications of Vectors Vectors and Parametric Equations Modeling Motion Using Parametric Equations Transformation Matrices in Three-Dimensional Space LEARNING OUTCOMES. Upon completion of this unit of study, the student shall be able to: Find equal, opposite, and parallel vectors. Add and subtract vectors geometrically. Find ordered pairs that represent vectors. Add, subtract, multiply, and find the magnitude of vectors algebraically. Add and subtract vectors in three-dimensional space. Find the magnitude of vectors in three-dimensional space. Find the inner and cross product of two vectors. Determine whether two vectors are perpendicular. Solve problems using vectors and right triangle trigonometry. Write vector and parametric equations of lines. Graph parametric equations. Model the motion of a projectile using parametric equations.
Mabon - Overview By Christina This is known as the precession of the equinoxes (first noted by Hipparchusaround 120 BC and explained in 1687 by Sir Isaac Newton). http://www.witchvox.com/holidays/mabon/mabon_details.html
Extractions: T he Autumnal Equinox, in the Northern Hemisphere, is the point at which the Sun appears to cross the celestial equator from north to south. The equinoxes, which lie at the intersections of the celestial equator and the ecliptic, are points moving in a westward direction along the celestial sphere. This is known as the precession of the equinoxes (first noted by Hipparchus around 120 B.C and explained in 1687 by Sir Isaac Newton). It takes 25, 800 years for the equinoxes Êto pass through all the constellations of the zodiac, meaning this occurs at a rate of 50.27 seconds of arc a year.
