I've noticed that the diet commonly preferred by trolls includes made-up jargon, insults, and paradoxes. Responding with reason or legitimate information leaves them craving more. -Dave On Monday, 06 Oct 2003, Valdis.Kletnieks@vt.edu wrote: > On Sun, 05 Oct 2003 03:47:16 PDT, you said: > > > Ha Gotcha! Your knowledge of computers is wanting. Magnetic harddisks can be > > scanned with laser for surface patterns arrangements, I think your attacks on > > me are least professional. > > OK. Perhaps they *can* be scanned with lasers. However, as far as I can tell, > most companies actually recovering data from magnetic media are using some > variant on a magnetic sensor, not a laser. > > http://www.boulder.nist.gov/div816/2001/MagneticRecordingMeasurements/ > > See the section "New Technique for Recovering Data": > > "Termed "second-harmonic magnetoresistive microscopy" (SH-MRM), this technique > makes use of high-resolution magnetic sensors developed for modern computer > hard-disk drives." > > So as of 2 years ago, the research in the field was still using magnetic based > techniques, and of course the companies doing it for a living will be lagging > somewhat behind that. > > Perhaps your confusion is based on a misunderstanding of the process: > > http://www.usbyte.com/common/AFM_storage.htm > > Yes, a small laser is used - to measure the deflection of a sensor by a magnetic field. > > And I'm sorry that you find it unprofessional to be asked what your postings > have of interest *TO THE IETF*. The 'I' stands for 'Internet'. Not nuclear > weapon, not nanotech, not disk storage, but *INTERNET*. Unless you can show > how nuclear weapons, nanotech, disk storage, or whatever your next missive is > about is related *TO THE INTERNET*, it's off-topic for *THIS* list. > -- David Frascone Plan to be more spontaneous.