MikeV wrote: |
Dr. Coffee wrote: | smeagol the vile wrote: | may we ask what your doctorate is in? |
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Sonars, mapping under the sea, that sort of thing. Nothing interesting. DoC |
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Sounds interesting to me. Is that a geological doctorate? |
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The applications might be geological, but it could be anything you would use binoculars, flashlight or radar for above water. Under water sound is the only way of doing what is known as 'remote sensing' over any distance.
The problem is that there is a lot of myth and superstition around, so it is next to impossible to do any actually useful work. Where radar and lasers have totally transformed the world we live in over the past half-century, the sonars that work today are more or less the same systems that worked in 1945. The technology used to build the devices have changed quite a bit, but the way the stuff works has not.
With one exception. Rumour has it that operationally functional (as opposed to experimental) Synthetic Aperture Sonars are starting to emerge. If true, that's the only new sonar system to have emerged since WWII. It took a full 30 years to develop, though, as all the theory and principles needed were available around 1975. The problem is that the sea is a ridiculously difficult place to work - everything moves and changes all the time - so coming up with a working system for even the simplest task is at best very difficult; usually impossible.
So sonar technology is not a field for somebody like me, who likes to see actual results from their efforts.
DoC