At 2:25 AM -0400 8/15/02, the pickle wrote: >At 23:17 -0700 on 14/08/02, Obi-Wan wrote: > >>the pickle wrote: >> >>> At 23:32 -0500 on 14/08/02, Ryan wrote: >>> >>> >the heck of it. (i.e. Placing a telephone on your Seagate Barracuda II HD >>> >will most likely end up in you reformatting it.) So, here's your >>>Mac tidbit >>> >>> Anyone have a clue why this might be, and whether it requires a corded or >>> cordless (or cellular) telephone? >> >>Normal phones have magnets in the handset that can mess up a disk. I have a >>magnet reformatting tool. Same principle. > >Yeah, that sort of figures, but those magnets aren't very powerful. A >magnetised screwdriver has never caused me any problems and I'd think a fone's >speaker magnet would be somewhat less powerful.
Not as much a matter of how powerful the magnet is but how contained the magnetic field is. A speaker magnetic field is tightly confined. Anyone who has ever disassembled a hard drive (I've taken apart dozens) knows the voice coil positioner magnet inside one is about the strongest magnet you'll come across in home equipment. And that is about an inch from the disks. Oh and the spindle motor also has a nice strong magnet and that is often INSIDE the hub holding the disks. But in either case the magnetic field is is well confined across a small gap. A magnetized screwdriver isn't all that strong but the field is rather large. Most devices using a magnetic field keep it confined as it is much stronger for doing what is needed). -- Clark Martin Redwood City, CA, USA Macintosh / Internet Consulting [EMAIL PROTECTED] "I'm a designated driver on the Information Super Highway" -- Quadlist is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> The FAQ: <http://macfaq.org/> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
