>FA> The foil may have been a rubber with a tin foil type
>FA> covering etc, and does unfold etc..
> I have held, folded and wadded plastic similar to what was described,
> complete with metallic coating, (thin enough to shine a bright light
> through), and while it does tend to unfold, it DOES show crease lines
> when it unfolds.  If it were from OUR technology, I would think that
> they would have started using such a material in consumer products,
> such as the bags which food is sold in, in a lot less than 50 years!
Also it wouldn't get so small that you almost couldn't feel it in
your hand and then spread out again creaseless like a liquid..and
you could definitely cut the rubber with tin foil type covering if you
tried.
> And it was under armed guard all the way!
Well back in 1947 they must have taken their weather balloons very seriously 
:)
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