Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!wuarchive!bcm!dimacs.rutgers.edu!aramis.rutgers.edu!athos.rutgers.edu!nanotech From: landman@eng.sun.com (Howard A. Landman) Newsgroups: sci.nanotech Subject: Re: STM nuclear reactions Message-ID: Date: 13 Dec 90 22:07:55 GMT Sender: nanotech@athos.rutgers.edu Organization: Sun Microsystems, Mt. View, Ca. Lines: 17 Approved: nanotech@aramis.rutgers.edu In article mike@everexn.com (Mike Higgins) writes: > There is a sampling problem you all seem to be overlooking: The STM >doesn't take snapshots, it's this little needle waving around. Even if it is >scanning the area of say a DNA molecule where a 32P is about to go boom, all >you will see is one picture whith everything in place, and the next scan will >show something broken. Big deal. My notion was, you scan perhaps once a second to make sure you haven't drifted, but spend most of the time (more than 98%) hovering over the atom of interest. That gives you an excellent chance of seeing everything in the Z dimension. That's why I suggested treating it as an audio-like signal. For video you have to trade off time resolution to get spatial resolution. -- Howard A. Landman landman@eng.sun.com -or- sun!landman