This redirect is within the scope of WikiProject Television, a collaborative effort to develop and improve Wikipedia articles about
television programs. If you would like to participate, please visit the project page where you can
join the discussion.TelevisionWikipedia:WikiProject TelevisionTemplate:WikiProject Televisiontelevision articles
Magnets
Does this belong here as a goof, or is there perhaps somewhere more broad to place it on wikipedia, as it's not the first time I've noticed it in TV/film
When determining if the bullet is feromagnetic (enough) or not they place it in the MRI. I can appreciate the scene, it was cool, they make it look like the cadaver is raise it's head as the bullet gets sucked back out. My point is the magnetic field isn't something you just turn on, but it seems to only apply when dramatically appropriate. The bullet would have been influenced by it as soon as they got into the room, not when they start the RF??? —The preceding
unsigned comment was added by
J-Kama-Ka-C (
talk •
contribs)
11:53, 24 January 2007 (UTC).reply
I was actually assuming it was the superconducting variety, but it has been my understanding that turning those off would defeat the purpose (and high expense) of keeping it at very low temperature: in order to keep
current moving. This is something I've assumed, but I can't actually find it stated. However
MRI does suggest a method of flipping the direction of the field: However however, this may only be doable with the resistive electromagnet variety?
Yes, the magnetic field in an MRI can vary (that's how you do the pictures). But no, its never shut down, except in case of emergencies - when you suddenly quentch the helium out of the superconductors in order to quickly kill the magnetic field if someone's life is threatened by some dangerous ferrous objet. (Normally, even when the MRI machine is turned off outside operating hours, the superconductor is still cooled down and the electromagnets are still generating the field). The variation of field used to do imagery are really small compared to the base field strengh and thus won't cause the sudden motion of the bullets.
You are right : the bullets should be getting gradually pulled by the field are the corpse was brought near to and then into the tube. Not when the machine was turned on. At least the behaviour I've regularly observed with ferromagnetic object near 3 Telsa MRI, including holding and letting go on purpose ballpoint pens (with ferromagnetic springs system) inside the tube. The results are impressive (and where done under the supervision of the technician to avoid us student damage the machine. Don't try this alone at home :-P )
In addition, fridge magnet wouldn't have had a strong enough field to move the fragments. Industrial machine featuring strong electromagnets like the one used to move metal junk around (and also regularly featured in video games), would have been a better choice.
DrYak (
talk)
01:45, 19 September 2008 (UTC)reply
Possible Merge with part 2?
Does anyone else think the two Euphoria sections should be merged into one article since they tell a continuous story and (unlike the 2-part season 4 finale "House's Head/Wilson's Heart) have virtually the same name except for one digit. Your thoughts... —Preceding
unsigned comment added by
68.198.10.33 (
talk)
06:52, 16 August 2009 (UTC)reply