That sounds familiar. Have it around here somewhere, but haven't managed to dig it out yet. Thanks. At least that gives me a better idea what I'm looking for.

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Time is a great teacher, but unfortunately, it kills all its pupils. Hector Berlioz

"To complete the picture all the photons can be seen to be synchronising friction on and off throughout the overall cone which itself is synchronised to the equal and opposite reaction of equilateral triangulation"... by a scientificator in ATM, too priceless to be lost to posterity.