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May 14, 2008

Pendulum

devadutta @ 9:49 pm, GMT +0000 ( 1210801780 ) Play

1 set up this huge pendulum somewhere in Europe to prove something for the first time.
Identify him and tell us what he proved.

Cracked by: VikraM , varuns88 , Tathagata Chatterjee , Keerthi Kiran M , shivathilak , Anu , Dibyo , sidsen , jayanth , BiGFooT , vijayaraghavan , Atul Mathew , udupendra( ;) ) , Rohan , akhi , srikar , svgreatest , vinod , Ginkgo100 , shashank , Rahul , Salil , Yash , duriel , madhur , chandru , Paresh , p vs np , sandesh , pratap and Shakeel.

Answer:

Foucault’s pendulum, which he used to show that the earth rotates.
Check out Madhur’s answer from some details.

Check out Ginkgo100’s comment for a post on the Foucault’s Pendulum at Huston Museum of Natural science. Found this video, which shows the pendulum topple pegs with time.. naaice


33 Responses to “Pendulum”

  1. VikraM

    Leon Foucault, the Foucault Pendulum……to prove the earth’s rotation


  2. varuns88
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    2

    1.Jean Bernard Léon Foucault

    He suspended a huge 28kg pendulum from the dome of the Pantheon in Paris to prove that Earth rotated about its axis.


  3. Tathagata Chatterjee
    1

    Leon Foucault

    He successfully demonstrated the rotation of the earth.His pendulum at Paris (1851?)was the first dynamic proof of the earth’s rotation in an “easy to watch” experiment format.

    Regards,
    Tathagata Chatterjee


  4. Keerthi Kiran M

    Leon Foucault
    Proved the rotation of the earth
    (I remember your Rangoli Maker device in Planetarium :))


  5. shivathilak

    Thats the Foucault’s pendulum, named after the French physicist Léon Foucault.

    with it he proved that the earth rotates on its axis and
    proved that earts rotation is affected during solar eclipses


  6. Anu

    The man is Leon Foucault. He proved that the Earth rotates about its axis.


  7. Dibyo
    11
    14
    10

    Leon Foucault

    French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth’s rotation


  8. sidsen
    2

    “31319”: foucault and his pendulum. proved that the world does go around.


  9. Jean Bernard Léon Foucault and Foucault’s pendulum, a device demonstrating the effect of the Earth’s rotation.


  10. BiGFooT

    Jean Bernard Léon Foucault : Focault’s most spectacular demonstration was in 1851 when he demonstrated the rotation of the Earth. He suspended a pendulum, known now as a Focault Pendulum, on a long wire from the dome of the Pantheon in Paris.


  11. vijayaraghavan

    foucault. he proved the earth rotates.


  12. Atul Mathew
    1

    1-Foucault
    2-Foucalt’s Pendulum

    2 demonstrated the earth’s rotation.


  13. udupendra
    4
    4
    7

    Foucault’s pendulum. Rotation of the earth.

    You should have given the clue has Eco-friendly :P (Umberto Eco reference)


  14. Rohan
    1

    Foucalt pendulum to demonstrate the effect of rotation of the earth.


  15. akhi
    2
    1

    Leon Foucault ,Foucault’s pendulum , to prove the rotation of the earth.


  16. 1) Leon Foucault
    2) He’s best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth’s rotation.


  17. svgreatest

    The guy in the picture is Foucault and he setup the Foucault’s Pendulum to prove that the earth rotates


  18. was dat leon foucault who gave 1st physical proof of earth\\\’s rotation..?


  19. Léon Foucault’s pendulum demonstrates the precession of the earth.


  20. Er… to amend my answer… it demonstrates the rotation of the earth by precessing.


  21. 1. Jean Bernard Léon Foucault

    Video is of the Foucault pendulum.
    Foucault built the pendulum to demonstrate the rotation of the Earth.


  22. Rahul
    1

    Foucaults Pendulum . Earths rotation


  23. Leon Foucault


  24. Focault’s pendulum


  25. duriel
    1
    1
    2

    Léon Foucault, Foucault’s Pendulum.
    Demonstrates the rotation of the Earth.


  26. madhur
    1

    1. Jean Bernard Léon Foucault

    He invented the Foucault pendulum which gave the visual proof of the Earth’s rotation.

    Using the pendulum he demonstrated that earth rotates due to gravitational force as there is no force acting on the pendulum to make its plane of oscillation rotate or go around its own axis.

    At equator, the plane of oscillation of Foucault pendulum remains fixed relative to Earth whereas at other latitudes, the plane of oscillation precesses relative to Earth, but slower than at the pole.


  27. chandru

    Foucault pendulum
    Léon Foucault set this up in Panthéon, Paris to demonstrate the rotation of earth.


  28. Paresh

    Foucault pendulum


  29. p vs np
    1

    Léon Foucault. The Foucalt Pendulum, which was installed to demonstrate the rotation of earth.


  30. sandesh

    Foucalt,
    Earth’s rotation..


  31. pratap

    Leon Foucault. Foucault’s pendulum to prove the rotation of the earth.


  32. Shakeel

    Léon Foucault,below is Foucault\\\’s pendulum in Paris.It demonstrates the rotation of earth.


  33. Shubhendu Saha

    Léon Foucault. Used this to prove earth\’s rotation


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