Fresnel aspherical acoustic mirrors
On 27/10/2012 20:50, Grimly Curmudgeon wrote:
Pah, trivially easy.
Russian fur hat with the flaps down or simple baseball cap with
extensions out to the lower sides, cunningly shaped as cartoon
characters to attract the local idiots.
FA: Woolly hat with inbuilt headphones. Came as a package with a camera
we bought in Spain after I left mine at home...
Andy
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