On 4/4/09 9:21 AM, "Bruce Johnson" <[email protected]> Broadcast into the ether:
> A large magnet will not affect them, at least not a large magnet > you're likely to have access to, unless you also have a large steel > recycling yard or cyclotron in your backyard... I think I am gonna have a heart attack....Bruce is wrong about something. Someone make sure an asteroid isn't about to plummet into the earth. http://www.degausser.info/degaussers/hd.htm And from wikipedia: "Data is stored in the magnetic media, such as hard drives, floppy disks and magnetic tape, by making very small areas called magnetic domains change their magnetic alignment to be in the direction of an applied magnetic field. This phenomenon occurs in much the same way a compass needle points in the direction of the earth's magnetic field. Degaussing, commonly called erasure, leaves the domains in random patterns with no preference to orientation, thereby rendering previous data unrecoverable. There are some domains whose magnetic alignment is not randomized after degaussing. The information these domains represent is commonly called magnetic remanence since it is due to remanent magnetization. Proper degaussing will ensure there is insufficient magnetic remanence to reconstruct the data." And the only reason I know this is it is one of the tools we use at the government lab to destroy drives...the other is the metal shredder which is WAY more fun. Kyle Hansen -- This is the way the world ends...not with a bang, but a twitter. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
