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August 4, 2005 Thursday

music
open improv: theme-TERROR
9:00PM - - -
HARMLESS / TERROR[!] (?)

A recent article in the New York Times lauds the discovery of the
sound producing mechanism of a bird called the Club Winged Manakin.
The Club Winged Manakin from Ecuador has been known since the 1800s
but it's sound producing has come to be noticed again,
with an attempt to solve its mechanism.

The mating call which the bird
makes is a brief electronic-sounding trill.
It has just recently been
discovered that the Manakin shakes its wings together
at around
100 times a second,
apparently scraping a special hooked feather
across a ridge of feathers.
(The hummingbird only moves its wings in flight
at around 50 times a second.)
This is astounding because
it is a convergence with the same technique
used by insects, specifically crickets,
called the spoon-across-washboard technique,
or pick and file.

The sound is at an incredible 1400 cycles per second
which means
that the wings must make 14 sounds
during each shake as at rakes its feathers.
MOVIE

"The ornithologists plan to test their hypothesis with new experiments. On
her next trip to Ecuador, Dr. Bostwick hopes to catch a male club-winged manakin
and clip off the raking tip on each wing (a harmless procedure)".

'I should be able to completely silence the bird,' she predicted"

1. Intense, overpowering fear. See Synonyms at fear.
2. One that instills intense fear: a rabid dog that became the terror of the neighborhood.
3. The ability to instill intense fear: the terror of jackboots pounding down the street.
4. Violence committed or threatened by a group to intimidate or coerce a population, as for military or political purposes.
5. Informal. An annoying or intolerable pest: that little terror of a child.

------------------------------------------------------------------------
[Middle English terrour, from Old French terreur, from Latin terror, from terrre, to frighten.]

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