Re: Anti-armor mines!

On 6 Sep 98, at 21:39, Andrew Martin wrote:

> 
> Richard Slattery wrote:
> >Submarines taken as a whole have exactly the same density as the
water
> around >them, so the detectors must be able to detect either the shell
of
> the sub, or >the big pocket of air inside them.... or both in
combination
>     While the density of a submarine is that of water, that's the
average
> density! Not the density of, say, it's very dense nuclear fuel.
Similarly
> with mines, while a mine could be made to be of a similar density to
> earth, parts of it would be of higher density. Thus a mine could be
> located using a gravity gradiometer.

Odd.. I thought I said that ;)

> >[Gravity gradiometers] will also detect rocks, gophers, roots, 
baked bean
> >cans....
>     Sure a gravity gradiometer will detect dense rocks, bolts, and
other
> things that are denser than water or soil (gophers and roots have a
> similar density to water and soil). In conjunction with other sensors,
> computer power and algorithms, I think that false indications will be
> minimal. After all, the baked bean can problem would have been
extensively
> studied in earlier trials! Baked bean tins and a whole variety of
other
> common dense items would have their signatures recorded so that they
can
> be eliminated from consideration.

I thought I said that too ;)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Richard Slattery	     richard@mgkc.demon.co.uk
All the things I really like to do are either illegal, immoral, or
fattening. 
     Alexander Wolcott
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~