We will never know who first discovered Mars. The Egyptians from 1570 B.C. called Mars by the god name of “Horus of the Horizon” and depicted it as a man with a hawk’s head. They also observed the planet “going backwards” refering to what we now know as retrograde motion. Aristotle (384BC- 322BC) was among the first known writers to set down observations of Mars. In 1609, Galileo was the first to view Mars through a telescope.

Another answer

From a purely semantic standpoint, since the Romans named Mars (after their god of war, Mars, and his dogs, Phobos and D) it could be said that the Romans ‘discovered’ Mars.

Surely other ancient cultures had (and still have) other names for the planet we call Mars, but since “mars” seems to be the most popular name for it in the scientific world, credit could go to the Roman empire.  


Mars was known to the ancients, and was seen in the sky before there was writing. No one can really be given credit for the discovery of Mars in that light.

Note: There are comments associated with this question. See the discussion page to add to the conversation.

Aristotle elaborated on Eudoxus’ system. In the fully developed Aristotelian loop (most notably that of Mars) would be smaller, and sometimes larger.

Championed by Aristotle and codified by Ptolemy, it favored the Earth and Aristotle, a student of Plato, observed an occultation of Mars by the Moon

Aristotle (384-322 BC), the Greek philosopher, happens to observe an occultation of Mars by the Moon. From seeing the Moon pass in front of Mars, Aristotle

Planet Mars question: What did Aristotle observe? Home of Wiki & Reference Answers, the world’s leading Q&A site · Wiki Answers. English▼

Aristotle says the exact number of spheres, and hence of the number of movers, Ptolemaic model of the spheres for Venus, Mars, Jupiter, and Saturn with


In astronomy, the geocentric model (also known as “geocentrism”, or the Ptolemaic view of the whole universe), is the theory, now superseded, that the Earth is the center of the universe and other objects orbit around it. Belief in this system was common in ancient Greece. It was embraced by both Aristotle (see Aristotelian physics) and Ptolemy, and most, but not all, Ancient Greek philosophers assumed that the Sun, Moon, stars, and naked eye planets circle the Earth. Similar ideas were held in ancient China.[1]

Two common observations were believed to support the idea that the Earth is in the center of the Universe: The first observation is that the stars, sun, and planets appear to revolve around the Earth each day, with the stars circling around the pole and those stars nearer the equator rising and setting each day and circling back to their rising point;[2] the second is the perception that as the Earth is solid and stable it is not moving—but is at rest.

The geocentric model was usually combined with a spherical Earth by ancient Greek and medieval philosophers. It is not the same as the older flat Earth model implied in some mythology. The ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture before the 17th century.

The astronomical predictions of Ptolemy’s geocentric model were used for over 1500 years. The geocentric model held sway into the early modern age; from the late 16th century onward it was gradually replaced by the heliocentric model of Copernicus, Galileo and Kepler.

 do you think they could have landed the “Rover” on Mars? Finally, through the rediscovery of the Pagan Classics, Plato, Aristotle, Epictetus, Plotinus and many AristotleWikipedia, the free encyclopedia: Aristotle ( Greek:

Aristotle also observed that the terminator (boundary) of this shadow on the …. The angle between the sun and Mars from the Earth can be computed using the …. from Wikipedia and then branching out to more primary source material).

Type Venus: (Also known as V/V.) Type Mars: Details unknown. Type Jupiter: Type Jupiter, Retrieved from “

Aristotle was among the first known writers to describe observations of Mars, ….. Find more information on Mars by searching Wikipedia’s sister projects

Observations of Mars spaced a few weeks apart reveal motion relative to constellations in the …. G.E.R. Lloyd, Early Greek Science: Thales to Aristotle.

Find 6 questions and answers about Interesting-Facts-about-Aristotle at Winki can give you the answer to everything! Aristotle But if Interesting Facts about Mars · Interesting Facts about

20 Jan 2009 < Politics (Aristotle). Jump to: navigation, search …… first mythologists seem not improperly to have joined Mars and Venus together;

Thus Aristotle first suggested a reciprocal or circular causality as a relation of ….. when Apellicon of Teos discovered and purchased the manuscripts, …. That these undisputed dates (the first half of the Olympiad year 384/3,

We will never know who first discovered Mars. The Egyptians from 1570 BC Home of Wiki & Reference Answers, the world’s leading Q&A site · Wiki Answers Aristotle (384BC- 322BC) was among the first known writers to set down observations of Mars. Who discover mars? Who descovered mars? Mars discovery date?

The perihelia (q) and aphelia (Q) are labelled with the date of the nearest passage. Both satellites were discovered in 1877 by Asaph Hall, and are named ….. Aristotle was among the first known writers to describe observations of ….. Find more information on Mars by searching Wikipedia’s sister projects

Probably influenced by Babylonians and Egyptians, Thales discovered the He is credited with being the first to realize the Morning Star and Evening Star were the same. He knew that the planets Jupiter, Saturn, Venus, Mars, and Mercury move. Aristotle, from Scuola di Atene fresco, by Raphael Sanzio.

 Oct 2010 [245] What is the mean density of Mars and the other planets? [239] Why does the exact date and time of the passage of the Earth through its perihelion oscillate? [126] Who discovered first that the world is round, and when? ….. at

9 Oct 2010 [474] If I can jump 1 meter high on Earth, then how large is the planet from [245] What is the mean density of Mars and the other planets? [126] Who discovered first that the world is round, and when? …… The symbols for the first six planets date back to the Middle Ages (if not earlier).

Home of Wiki & Reference Answers, the world’s leading Q&A site · Reference Answers ….. Philosophers such as Aristotle, who were some of the first scientists, …… During the late 19th and early 20th centuries, physicists discovered The earliest references to the concept of atoms date back to ancient India

Join Date: 2009-10-22. Posts: 2824. Location: Sweanderthalia. Gender: Male wiki/Modes_of_persuasion …. Forum Jump: User Control Panel, Private Messages, Subscriptions, Who’s Online, Search Forums, Forums Home

He discovered that the retrograde motion of Mars was inconsistent 1781: Herschel discovers Uranus, the first planet not visible to the naked eye. The universe has no well-defined “expiration date”. …. Aristotle’s model (http ://, Egyptian map of the skies (

Aristotle (384-322 BC) was the first to mention bioluminescence when he observed the phenomenon on dead fish covered Dubois discovered that a chemical reaction is at …. GFP: Date of publication: October 30, 2007. Date of translation: February 6, 2008




The Pareto distribution, named after the Italian economist Vilfredo Pareto, is a power law probability distribution that coincides with social, scientific, geophysical, actuarial, and many other types of observable phenomena. Outside the field of economics it is at times referred to as the Bradford distribution.

Pareto originally used this distribution to describe the allocation of wealth among individuals since it seemed to show rather well the way that a larger portion of the wealth of any society is owned by a smaller percentage of the people in that society. He also used it to describe distribution of income.[1] This idea is sometimes expressed more simply as the Pareto principle or the “80-20 rule” which says that 20% of the population controls 80% of the wealth[2]. The probability density function (PDF) graph on the right shows that the “probability” or fraction of the population that owns a small amount of wealth per person is rather high, and then decreases steadily as wealth increases. This distribution is not limited to describing wealth or income, but to many situations in which an equilibrium is found in the distribution of the “small” to the “large”. The following examples are sometimes seen as approximately Pareto-distributed:

  • The sizes of human settlements (few cities, many hamlets/villages)
  • File size distribution of Internet traffic which uses the TCP protocol (many smaller files, few larger ones)
  • Hard disk drive error rates[3]
  • Clusters of Bose–Einstein condensate near absolute zero
  • The values of oil reserves in oil fields (a few large fields, many small fields)
  • The length distribution in jobs assigned supercomputers (a few large ones, many small ones)
  • The standardized price returns on individual stocks
  • Sizes of sand particles
  • Sizes of meteorites
  • Numbers of species per genus (There is subjectivity involved: The tendency to divide a genus into two or more increases with the number of species in it)
  • Areas burnt in forest fires
  • Severity of large casualty losses for certain lines of business such as general liability, commercial auto, and workers compensation.

Note that the Pareto distribution and log-normal distribution are alternative distributions for describing the same types of quantities. One of the connections between the two is that they are both the distributions of the exponential of random variables distributed according to other common distributions, respectively the exponential distribution and normal distribution. (Both of these latter two distributions are “basic” in the sense that the logarithms of their density functions are linear and quadratic, respectively, functions of the observed values.)

File:Pareto distributionPDF.png


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s