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I stupidly failed to give a meaningful
name to my previous posting: "Booshkie from BIBY". That will not have meant much
to anybody there. "Pardalote in a spin" works better.
The question is, how fast does a Spotted
Pardalote shake its head? Still picture shown for reference, and then the
blurred one.
Nick suggests about 1/20th of a
second.
Well,
looking at one of the spots on the pardalote?s head, it seems to have
travelled through roughly 45 degrees during the exposure. So a complete
rotation of its head, if anatomically possible, would take about
1/20th second.
Sounds reasonable.
Pretty fast, but not as fast as one might
have thought from looking at the blur.
My brain is non-mathematical, it just hurts
when trying to work out fine details like that. Thanks, Nick.
Cheers
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