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From: Bruce Stark (no email)
Date: Fri Dec 02 2005 - 15:29:16 EST
George,
According to the old navigation manuals, East Indiamen and ships of the Royal
Navy heaved the log every hour, other vessels every two hours. Seems to me
this would provide the opportunity to fine-tune the ability to estimate ship
speed by one's senses.
Bruce
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