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July 19, 2011

Circle? Take this

devadutta @ 11:59 pm, GMT +0000 ( 1311119983 ) Play

The dude in 1 proposed 2 to explain something. Who is this dude?  What are those funky curves known as?

 

Cracked by: Urthstripe , username , Bharath , shrik , Ananth , Thejas V R , jowens , Manish Achuth , Dibyo , Bipin Banavalikar , KK , Sai Subramanian , raklodramA , rickde , anurag , Sumanth Patlolla , Smitha R Maiya , Swarun , grey_matters , kapinjal chowdhury , Rahulk , rohanquizzer , Rogi , dineshk , Anjul , Shwetha Maiya and Raghuvansh

Answer:
Quoting Anjul – This is Ptolemy who used these diagrams to explain the orbits of planets under his geocentric theory of the universe. Those funky curves are called deferents and epicycles.

Points assigned by AutoRaja. Review by lazy humans pending.

28 Responses to “Circle? Take this”

  1. Urthstripe

    The dude is Ptolemy. The curves are equants?


  2. username
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    Ptolemy
    Deferent and epicycle

    Ptolemy’s picture of geocentric model depticting the apparent movement of sun and planets with earth as center


  3. Bharath
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    Ptolemy and Ptolemy’s Almagest which contains information on The apparent movement of sun and planets with earth as center (geocentric model)


  4. shrik
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    The Ptolemaic geocentric model, with the Earth at the center of the universe and the planets, Moon and Sun orbiting around the Earth. To allow for retrograde motion the model used a series of circles. The main orbit was called a deferent and the planet was located on a smaller orbit called an epicycle, to form an epitrochoid.


  5. Ananth
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    Ptolemy’s almagest


  6. Ptolemy and Almagest


  7. jowens
    13
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    Ptolomy’s Almagest; Epitrochoids


  8. Manish Achuth
    16
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    Ptolemy Almagest


  9. Dibyo
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    ptolemy and and this is his geocentric model, from the almagest, i think they are called epicycles


  10. Bipin Banavalikar
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    Claudius Ptolemy

    The apparent movement of sun and planets with earth as center. Almagest


  11. KK
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    Ptolemy.
    2 was proposed to explain the solar system. and 2 is known as epicycles.


  12. Sai Subramanian

    Ptolemaeus, Lunar crater


  13. Claudius Ptolemy
    he proposed The apparent movement of sun and planets with earth as center

    Cassini apparent


  14. rickde
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    Ptolemy n his geocentric model of universe
    the curves of Ptolemaic system are orbits of the five known planets n are called epitrochoids. This was done to explain the retrogade motion of the planets.


  15. anurag

    Ptolemy’s geocentric model. The curves are the paths traced by the planets as seen from the earth.


  16. Sumanth Patlolla
    27
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    The apparent movement of sun and planets with earth as center.

    Ptolemy’s Almagest is a 2nd century AD Ancient Greek mathematical and astronomical treatise on the complex motions of the stars and planetary paths.


  17. Smitha R Maiya

    Ptolemy’s Almagest Representation of the apparent motion of the sun and planets from the earth.


  18. Swarun

    The guy is Ptolemy.
    And the funky curves are called epicycles.


  19. grey_matters

    Dude is Ptolemy
    Circles represent movement of Sun ans Planets with Earth as centre


  20. kapinjal chowdhury

    ptolemy’s The apparent movement of sun and planets with earth as center.


  21. Офигеть просто! Все, блин, всё знают, кроме меня


  22. Rahulk
    2
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    Ptolemy explaining the apparent movement of sun and planets with earth as center in Almagest


  23. Ptolemy trying to explain the supposed movement of the Sun and the other planets with the earth as the centre.


  24. Rogi
    48
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    Ptolemy and Retrograde Motion
    Epicycles and/or “Circles on Circles” come to mind, as well.


  25. dineshk
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    Ptolemy proposed epicycles as a model for the orbit of the sun and the planets around earth.


  26. Anjul
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    This is Ptolemy who used these diagrams to explain the orbits of planets under his geocentric theory of the universe. Those funky curves are called deferents and epicycles.


  27. Shwetha Maiya
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    1

    Ptolemy – Almagest


  28. Raghuvansh
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    Ptolemy, epitrochoid curves.


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