Re: [Harp-L] weird harp effect

["Splash" <celtiac@xxxxxxxxxxxxx>]

It's making the fluid in your eyes vibrate and your eyes are oscillating -
changing shape.  It happens to me when doing several things... playing harp,
sax, using a large electric power grinder etc.  Look at something else
besides the computer monitor when playing and see if it still happens.

PEACE
Scott
Believe in Magic!
----- Original Message -----
From: "Garry Hodgson" <garry@xxxxxxxxxxxx>
To: <Harp-L@xxxxxxxxxx>
Sent: Monday, March 05, 2007 12:13 PM
Subject: [Harp-L] weird harp effect


> so i'm sitting at the computer yesterday, waiting for somethng to finish.
> there was a D harp on the desk, so i picked it up and starting futzing
around.
> and at some point i see, just for a moment, these wavy horizontal lines on
> the screen.  not sharp, distinct lines, but a series of evenly spaced
(1/2" or
> so apart) horizontal bands of fuzziness.  hard to describe.
>
> after a little experimenting, i find i can reliably repeat it.  it happens
every
> time i play the 3 draw bend (i forget which one), and lasts for exactly
the
> duration of the note.  i didn't try it with the same hole/bend on another
harp,
> or playing the same note on a different harp.  nor did i try a different
monitor.
>
> but i'm curious whether this is a physical or perceptual event.  that is,
are the
> sound waves at some particular frequency interacting with the
electromagnetic
> fields near the screen?  or is that note making my skull/eyeballs vibrate
in such
> a way that i see an odd visual effect?  or am i just nuts?  not that this
option
> would necessarily rule out the other two...
>
> insight, anyone?
>
>
> ----
> Garry Hodgson, Senior Software Geek, AT&T CSO
>
> do for others with no desire of return.
> we should all plant some trees
> we will never sit under.
>
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