animation of solar wind patterns and radiation from the sun, with the earth's magnetic field. - 磁場 個影片檔及 b 捲影像00:17地球, 外太空
earth magnetic field with compass points. the magnetic pole at the north pole (in the arctic) pole is technically a south magnetic pole in physical terms, as it attracts the north pole of a navigators compass needle - 磁場 個影片檔及 b 捲影像00:14地球
magnetic, electric and gravitational fields - part 3 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic r - 磁場 個影片檔及 b 捲影像00:29
animation of the earths magnetic field and compass points. magnetic fields, by convention, point from north to south magnetic poles. the earths geological north pole is actually a magnetic south pole - 磁場 個影片檔及 b 捲影像00:14地球
magnetic, electric and gravitational fields - part 16 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic - 磁場 個影片檔及 b 捲影像00:35星球
magnetic, electric and gravitational fields - part 15 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic - 磁場 個影片檔及 b 捲影像00:35袋鼠
shiny metallic ferrofluid deforming organic blobs with depth of field. trendy 3d rendering digital animation. abstract futuristic design hd - 磁場 個影片檔及 b 捲影像00:10
magnetic, electric and gravitational fields - part 18 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic - 磁場 個影片檔及 b 捲影像00:23
magnetic, electric and gravitational fields - part 13 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic - 磁場 個影片檔及 b 捲影像00:32
solar coronal loops, magnetogram. data collected by the michelson doppler imager (mdi) on board the solar and heliospheric observatory (soho) spacecraft. the solar model is constructed from magnetogram data collected by soho mdi.. - 磁場 個影片檔及 b 捲影像00:12
magnetic, electric and gravitational fields - part 14 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic - 磁場 個影片檔及 b 捲影像00:38
how to produce electric currents with magnets - part 12 of 17. experiments with a magnet and battery show that electricity and magnetism are interrelated and that an electric current can produce magnetic effects - 磁場 個影片檔及 b 捲影像00:25
how to produce electric currents with magnets - part 11 of 17. experiments with a magnet and battery show that electricity and magnetism are interrelated and that an electric current can produce magnetic effects - 磁場 個影片檔及 b 捲影像00:35
understanding magnetic fields with a bar magnet and iron filings demonstration. 3d animation - 磁場 個影片檔及 b 捲影像00:10
teacher presenting an animated film about magnetism and electricity to navy men studying electronics in the classroom, us, 1953. an educational film... - 磁場 個影片檔及 b 捲影像00:28
magnetic, electric and gravitational fields - part 10 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic - 磁場 個影片檔及 b 捲影像00:34
magnetic, electric and gravitational fields - part 4 of 19. evidence of the magnetic field is illustrated by bringing a compass close to a magnet and watching the compass needle. further evidence of an electric field is demonstrated by rubbing a plastic r - 磁場 個影片檔及 b 捲影像00:35
how to produce electric currents with magnets - part 13 of 17. experiments with a magnet and battery show that electricity and magnetism are interrelated and that an electric current can produce magnetic effects - 磁場 個影片檔及 b 捲影像00:37電池
space probes - exploring our solar system - part 16 of 18. animation, live photography, and models of spacecraft and instruments tell the story of man's efforts to explore the outer regions of space - from the launching of pioneer i in 1958 to present-day - 磁場 個影片檔及 b 捲影像00:31地球
magnetic particles lining up with the north and south poles of a magnetic field - 磁場 個影片檔及 b 捲影像00:07
the solar or sun activity during the whole 2015 year (time lapse in slowmotion) - 磁場 個影片檔及 b 捲影像00:16外太空
two coronal mass ejections struck earth's magnetic field, sparking geomagnetic storm conditions and illuminating the night skies with vibrant auroras... - 磁場 個影片檔及 b 捲影像01:20
