[Top] [All Lists]

Re: [OM] Bats in flight photography (was Batty)

Subject: Re: [OM] Bats in flight photography (was Batty)
From: Winsor Crosby <wincros@xxxxxxx>
Date: Fri, 10 Jul 1998 18:09:20 -0700
>The *only* way to see a bat is when its flying indoors. Their skill is
>beyond belief. They are of course hunting with radar (yours was probably
>transmitting ultrasound at between 45 and 55Khz - humans can hear upto
>about 19Khz) and can sense something as fine as a human hair in their
>flight path, in total darkness, and avoid it.


Radar uses radio waves. Bats don't emit radio waves. Sonar uses sound
waves. Most recent articles on bats I have seen don't use either word
because, technically, neither one is really appropriate. They usually use


Winsor Crosby
Long Beach, California

< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >

<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz