- The document describes an experiment conducted by Philippe Jeanjacquot at the Kandilli Observatory to capture images of the Aurora Borealis using a terrella, or miniature model of Earth and its magnetic field. - The experiment uses a vacuum bell, high voltage power supply, and vacuum pump to simulate the conditions that create the Northern Lights. - The document provides historical background on scientific discoveries of the Aurora Borealis dating back to the 16th century and compares images captured in the terrella experiment to actual NASA images of the Aurora Borealis.

1. Philippe Jeanjacquot KandilliObservatory Monday the 25th of may2009

2. Philippe Jeanjacquot KandilliObservatory Monday the 25th of may2009

3. We have capturedAurorasBorealis ! Philippe Jeanjacquot KandilliObservatory Monday the 25th of may2009

4. We have capturedAurorasBorealis ! 3 Stories !

5. We have capturedAurorasBorealis ! 1582-1598 TychoBrahé:Realised the first graph of auroras annual number 1716-1732 Celsius: Found than when the auroras borealis appears, the needle of the compass change of direction .

6. We have capturedAurorasBorealis ! 1829-1830 Hansteen: Measurement of the auroras height with triangular method. 1817 Jean BaptisteBiot: study of the auroras polarization.

7. We have capturedAurorasBorealis ! 1870 Tromholt: Found a link between the auroras frequency and the solar spots. 1868 Angstrom: Establish the auroras spectrum.

8. We have capturedAurorasBorealis ! Frequency auroras card made by Hermann Fritz (1881)

9. We have capturedAurorasBorealis ! Gilbert 1600

10. We have capturedAurorasBorealis ! Faraday 1821 Crookes 1879 Roentgen 1895

11. We have capturedAurorasBorealis ! The birkeland’sterrella

12. We have capturedAurorasBorealis ! Kristian Birkeland (1896)

13. We have capturedAurorasBorealis !

14. We have capturedAurorasBorealis !

15. We have capturedAurorasBorealis ! Comparisonbetween the birkeland’sterrella and the reality

16. We have capturedAurorasBorealis ! Confirmé seulement plusieurs années plus tard (ici en 1985) Crédit: Dynamic Explorer, NASA

17. We have capturedAurorasBorealis ! Crédit: Dynamic Explorer, NASA Crédit: Dynamic Explorer, NASA

18. We have capturedAurorasBorealis ! Crédit: Agence spatiale japonaise

19. We have capturedAurorasBorealis ! Crédit: http://spaceweather.com/

20. We have capturedAurorasBorealis ! Crédit: Dynamic Explorer, NASA

22. We have capturedAurorasBorealis ! How do the aurorasappear?

23. ON A CAPTURE DES AURORES POLAIRES !

24. We have capturedAurorasBorealis ! A terrella in ourschool !

25. We have capturedAurorasBorealis ! Crédits Jean Lilensten, LPG

26. We have capturedAurorasBorealis ! Vacuum bellwithTerrella High voltage power supply. Vacuum pump

27. We have capturedAurorasBorealis !

28. We have capturedAurorasBorealis ! SECURITY Uranus Magneticfield vacuum Vue de face Radiations Vue de profil High voltage

29. We have capturedAurorasBorealis ! observations

30. We have capturedAurorasBorealis !

31. We have capturedAurorasBorealis ! 4) Modification de paramètres. Size of the rings according to the voltage -La tension-

32. We have capturedAurorasBorealis ! Auroras rings

33. We have capturedAurorasBorealis ! Stellar jets

34. We have capturedAurorasBorealis ! Van Allen belts

35. We have capturedAurorasBorealis ! Uranus Uranus auroras Vue de face Vue de profil

36. We have capturedAurorasBorealis ! Solar system simulation Uranus Vue de face Vue de profil

37. We have capturedAurorasBorealis ! Differentkind of spheres Uranus Vue de face Vue de profil

39. We have capturedAurorasBorealis ! Leak problems with the vacuum 5°) Principales contraintes rencontrées Uranus Vue de face Vue de profil

40. We have capturedAurorasBorealis ! Experiment to study plamas science Uranus Vue de face Vue de profil

41. We have capturedAurorasBorealis ! Uranus Vue de face Our experiment Vue de profil source Wikipédia et « du soleil à la Terre » de Jean Lilensten

42. We have capturedAurorasBorealis ! Galery

43. We have capturedAurorasBorealis !

44. We have capturedAurorasBorealis !

45. We have capturedAurorasBorealis !

46. ON A CAPTURé DES AURORES POLAIRES ! Contests and exibitions

47. ON A CAPTURé DES AURORES POLAIRES ! Science week in ourschool

48. ON A CAPTURé DES AURORES POLAIRES ! C’Génial contest in Paris

49. ON A CAPTURé DES AURORES POLAIRES ! Our experiment in a suitcase…

50. We have capturedAurorasBorealis ! If you need more informations please contact me: philippe.jeanjacquot@gmail.com Comenius : http://isheyevo.ens-lyon.fr/eaae/groupspace/european-sun/workshops/an-polar-light-in-our-schools