Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rutgers!ucla-cs!zen!ucbvax!decvax!dartvax!merchant From: merchant@dartvax.UUCP (Peter Merchant) Newsgroups: comp.sys.ibm.pc Subject: Re: Do You Protect Portables/Disks in Air Travel? Message-ID: <6777@dartvax.UUCP> Date: Mon, 27-Jul-87 11:56:45 EDT Article-I.D.: dartvax.6777 Posted: Mon Jul 27 11:56:45 1987 Date-Received: Fri, 31-Jul-87 06:12:46 EDT References: <862@dasys1.UUCP> <695@uhccux.UUCP> Organization: Dartmouth College, Hanover, NH Lines: 24 Keywords: portables disks x-ray metal detector In article <862@dasys1.UUCP> axelson@dasys1.UUCP (Kevin Axelson) writes: >Can disk data be damaged by magnetic fields encountered during commercial air >travel (e.g. from screening devices or elsewhere)? I have a hard disk in my transportable (ie, Macintosh). I always have the people at the airlines hand-check it. Usually, this requires me to plug it in and turn it on, to prove that it is really a computer and not just a funky case for a.357 magnum. The weirdest case I know of was someone with an external hard disk who carried that with him. When they he got to the gate, he was asked to open the hard disk. Fortunately, he had a screwdriver so he did and they let him through. (Personally, I find this surprising, as if you ever look inside those things, what you see is a metal box with lots of wires and cables coming off of it.) X-Rays do not harm magnetic disks, from what I understand. However, the magnetic fields created by the motors that run the conveyor belts can harm disks. Some people get away with it. But then, some people are lucky. While I might risk a 360K floppy, I'm certainly not risking a 20 megabyte hard disk. -- "Don't be fooled by the radio Peter Merchant (merchant@dartvax.UUCP) the TV or the magazine."