On Feb 9, 2009, at 10:05 AM, curtis osterhoudt wrote:
Where "orientation" means "which way my head is facing"?
Use of camcorders was mentioned this weekend. Filming a swinger, and
examining frames taken at the rate of 30 or 60 per second, should help
in identification of essential factors.
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Ludwik Kowalski, a retired physics teacher and an amateur journalist.
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