ABlainey@aol.com asked about MRI:
The best current machine might be able to get one millimeter resolution and
I doubt if you could ever get a resolution much better than 0.1 millimeters.
The trouble is that there is a relationship between scan time and resolution,
and this relationship goes to the 6 power. You'll never do much better unless
you move the MRI probes closer to the object you are examining.
Right now the probes are looking at things a huge distance away, several inches
in fact. To get high resolution we need to get much closer, inside people's heads,
and we need billions of them. Unfortunately to do all this we probably also need
John K Clark email@example.com
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