What contributes more to the attractive force between a magnet and a thin piece of metal - the magnet's surface area, or its thickness? [more inside]
posted by howling fantods on Nov 5, 2009 - 5 answers

How should I display my collection of travel magnets? [more inside]
posted by lbo on Oct 10, 2009 - 9 answers

Where is the best place to buy strong magnets online? [more inside]
posted by Jimmie on Nov 23, 2008 - 12 answers

Why are MRI's so freaking loud? [more inside]
posted by virga on Oct 29, 2008 - 20 answers

Is it ok to mail a thin magnet along with a card in the regular mail? Do I have to do anything special to it? [more inside]
posted by tastybrains on Dec 20, 2007 - 7 answers

SciFilter: Why don't these sheet magnets work as expected? [more inside]
posted by rwhe on Nov 27, 2007 - 4 answers

Help me find safe, amusing refrigerator magnets for my 15-month-old nephew. [more inside]
posted by bad grammar on Nov 13, 2007 - 9 answers

Why does holding a strong magnet up to your brain not do anything bad? [more inside]
posted by zek on Aug 24, 2007 - 26 answers

Anyone remember a toy series from the '80s or '90s which had figurines about an inch or so tall with magnets in their shoes? I think they were part of M.A.S.K. in space, but I can't find any info about them.
posted by riffola on Mar 12, 2007 - 9 answers

My BART card keeps getting demagnetized. Is there anything I can do to make it last longer? [more inside]
posted by ambrosia on Feb 13, 2007 - 22 answers

Is magnetism free energy? How exactly does it work? [more inside]
posted by evariste on Aug 25, 2006 - 16 answers

I'm helping a friend design Save-the-Date magnets for her wedding. Any recommendations on where to get them printed online? [more inside]
posted by sa3z on Nov 30, 2005 - 13 answers

I want to "break" a video. [more inside]
posted by ruby.aftermath on Sep 12, 2005 - 18 answers

After seeing them used on MythBusters, I purchased a number of super strong neodymium 'rare earth' magnets. My legitimate practical reasons for using them have run out. Suggestions? [more inside]
posted by Grensgeval on Jun 2, 2005 - 19 answers

I'm currently recovering from a pretty bad foot injury. Basically i was hit by a car while riding my motorcycle. My foot was smashed by the bumper and I suffered a talonavicular dislocation, which is a fancy way of saying my foot bones got disconected from the leg bones. The dislocation was reduced (owch) and now its immobilized. Someone sugested magnets would help me heal. Does anyone have experience with this? Does it work or is it nonsense? Does anyone know any other home remedies that work?
posted by clubfoote on Nov 29, 2004 - 15 answers

We want to hang our pots and pans from the HVAC ductwork on our kitchen. We're thinking strong magnetic hooks. [mi] [more inside]
posted by MrMoonPie on Sep 28, 2004 - 4 answers

I compute and play music in the same room, and recently I've been getting nagging notions that maybe all the excess vibrations caused my amplifiers and drums and all such as that may not be the best thing to have my computer around? what do you reckon? and I also have my actual tower on my desk next to a pretty sizable audio monitor...should I be worrying about the magnet inside of the speakers?
posted by mcsweetie on Jul 2, 2004 - 5 answers

iPods and refrigerator magnets don't mix. Or do they? I (accidentally) put an iPod in the same small backpack where, among books and other stuff, there was also (I didn't know that) an envelope with three small refrigerator magnets inside. the iPod seems to work fine. more inside [more inside]
posted by matteo on May 11, 2004 - 7 answers

I want to know if I run the risk of Hard Disk damage by having large (8 inch sub+midrange) speakers near my computer. I have a Western Digital 100GB 7200 and a 160GB 8MB cache disk installed. [more inside]
posted by Keyser Soze on Jan 21, 2004 - 2 answers