http://www.webtvhub.com/simple-science-video-mri-magnetic-field-makes-metal-block-fall-very-slowly/ Internet Television and Online Video Entertainment Blog Sun, 12 Feb 2012 05:56:37 +0000 http://wordpress.org/?v=2.9.1 hourly 1 http://www.webtvhub.com/simple-science-video-mri-magnetic-field-makes-metal-block-fall-very-slowly/comment-page-1/#comment-97724 X ray specs Sat, 21 Feb 2009 19:56:49 +0000 http://www.webtvhub.com/?p=7049#comment-97724 The metal used in this experiment is aluminium which is not ferromagnetic, if it was, it would have been sucked in to the magnet. This experiment is demonstrating the torque and fluctuating magnetic field of the MRI scanner. Whilst MRI does have a very strong magnetic field (several times that of the earth's gravitational pull), it is not strong enough to "rip" metal pins or screws out of someone's body as long as they are scanned at least 6 weeks post insertion so that the metal is suitably embedded. Most metal used in pins and plates is also titanium which isn't ferromagnetic either. The guys in this video were not performing any dangerous experiment and were not in any danger of damaging the equipment. The metal used in this experiment is aluminium which is not ferromagnetic, if it was, it would have been sucked in to the magnet. This experiment is demonstrating the torque and fluctuating magnetic field of the MRI scanner. Whilst MRI does have a very strong magnetic field (several times that of the earth’s gravitational pull), it is not strong enough to “rip” metal pins or screws out of someone’s body as long as they are scanned at least 6 weeks post insertion so that the metal is suitably embedded. Most metal used in pins and plates is also titanium which isn’t ferromagnetic either. The guys in this video were not performing any dangerous experiment and were not in any danger of damaging the equipment.

]]> http://www.webtvhub.com/simple-science-video-mri-magnetic-field-makes-metal-block-fall-very-slowly/comment-page-1/#comment-95788 Chris Thu, 05 Feb 2009 05:48:23 +0000 http://www.webtvhub.com/?p=7049#comment-95788 Needless to say, I think they would be in pretty big trouble for messing with that machine. Was it really worth it? It wasn't that cool... Needless to say, I think they would be in pretty big trouble for messing with that machine. Was it really worth it? It wasn’t that cool…

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