Fri, 05 Mar 2004 17:03:19 GMT
Parlor Trick. I've just acquired a container of Geneva Magview, which is basically a magnetic suspension in aerosol form. Spray it on the magnetic strip of a Metro fare card or a 3.5″ disk exumed from its plastic housing and–violla–the pattern of… [Matthew G. Kirschenbaum]
the problem of course is the pattern has no relationship to the meaning of the data, it is just noise unless you are dealing with analog data.