Walter wrote:
>
> Out with Lang last year with his ultra quiet setup we were constantly
> bothered by cars on the road, about 4 miles away. And a airplane in any
> part of the sky from horizon to horizon was a problem.
Australia's large spaces with small population means we still have
opportunity for freedom from Man-made noise. Most of my Albert's Lyrebird
recording areas are like that - for much of the time. Some are on the main
air route between capital cities but I surmise that frequency of aircraft is
much lower than with major northern hemisphere routes.
I have noticed however, that when a commercial jet flies overhead, the sound
lasts five minutes. They fly at, what, 600 mph? So once within say 20
miles, the noise is a problem on a quiet recording.
Syd Curtis in Brisbane, Australia
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>From Tue Mar 8 18:22:34 2005
Message: 3
Date: Thu, 1 Aug 2002 15:30:49 -0700 (PDT)
From: "Y. Dumiel" <>
Subject: BBC article on dog calls, etc.
This came through my inbox; perhaps it might interest others. The part
that caught my eye was the experimental attempt to establish a taxonomy of
dog calls. It's obvious that dogs use a range of sounds (& other signals)
to communicate, but I don't know if there have been previous attempts to
classify them systematically.
with regards to the delete command,
isaac
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BBC News Online
Wednesday, 31 July, 2002, 18:12 GMT 19:12 UK
Old dogs learn new tricks
Listen carefully when a dog barks at you. He may be trying to tell you
something.
For according to scientists, man's best friend is probably cleverer than you
think.
Not only does Fido use different barks to communicate but he can even count.
"It raises huge questions if dogs are capable of that kind of theoretical
thinking"Erica Peachey, animal behaviourist
Researchers at the University of California, Davis, recorded the barks of 10
dogs of six different breeds.
They believe individual dogs have different sounds for different situations.
A single high-pitched bark means, "Where has my owner gone?" while a
lower-pitched harsher "superbark" says, "There's a stranger coming".
The idea that dogs can count is more controversial. A second study suggests
dogs have a basic mathematical ability that enables them to work out when one
pile of objects is bigger than another.
Full text
http://news.bbc.co.uk/2/hi/science/nature/2163770.stm
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