I am back in business as you can see my
hair has returned.
I can talk. I haven't needed to shave this
side of my face since September but I'm
doing okay with most of the... most of the
things, a little bit more regimented
kind of life.
The problem is that people are going to
be moving in upstairs and I may have to
change the - where I live. That would cause
a big disruption. And in the meantime, I
have been having some difficulty getting
the Sound In Air, the animations for
this to give an improvement on the old
animation. So i'll give you what I've
got and we'll see where we can go from there.
With the guitar, the complex vibration
patterns of the top and back plates move
air in and out of the sound hole.
Something like this. And now my thinking
is that for chords and multiple strings
the motion would be more complex, maybe
like this. And another idea is that the
spherical expansion of the sound wave
starts right here at the sound hole.
Demonstrated like this. The motion of
sound wave particles can't be observed in
detail.
They're too small. They're too fast. And
there are far too many of them. Zooming in
several times on the spherical sound wave
helps to give some idea of their very
microscopic nature.
Here's a visual model I created
I got permission from mega-nerd for this
one. It shows the random kinetic motion
organized into sound waves.
This one from Muehleisen models the start
of the wave as the cyclical motion of a
piston. It's a fairly common image for
the air particle motion. And for the
guitar it serves as an introductory and
very simplified model of the Helmholtz
resonation at the sound hole. And this
animation clearly shows how traveling
waves form standing wave patterns such
as those inside an acoustic guitar body
or those reverberating in a concert hall.
Now here is my main problem. I have to
provide a convincing visual model for a 12
year old guitarist which does not
require high school or college math. And
to do that I have tied two sets of Fourier
circles together and I now need to
demonstrate that it models the sound of a
chord as multiple strings played at the
same time. Now here is the simple harmonic
motion we've been using up to now. Here's
the complex Fourier motion of a single
string. And here is the motion for two
strings. Treating each of these
individually. Here is the vertical simple
harmonic motion. Turned to the horizontal
it represents the additional directional
motion a simple harmonic sound wave
imposes on to the random kinetic motion
of the air particles.
And here is the complex Fourier model for
the sound wave of the single string.
And finally, the average motion of an ideal
molecule of an ideal gas when the
octave is sounded on two guitar strings at the
same time.
Now the two sets of Fourier circles are
separated out
and their waves are added together to
reproduce the original curve. Positive
added to positive. Positives and negatives
added here.
And finally two negatives create larger
negative value. And the original curve is
reproduced. And this is all just a
simplified model. Next the two connected
circles are put on their side and the
horizontal motion drives the piston
image to generate the complex motion of
a sound wave produced by a two-string
octave. Down below the logarithmic
placement values of the octave are shown
on the basilar membrane.
And just to be clear, a melodic octave
interval sounds when you play the
fundamental first then double the
original frequency. A harmonic interval
when both frequencies are played at the
same time on two or more strings. The
appearance can change but the relative
proportions do not.
For more infomation >> Sound in Air Interim 27 Dec 2016 - Duration: 4:57.-------------------------------------------
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GOING OUT ENTIRE whole house just for those potatoes | Pocket Guide - Duration: 2:47.
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Hong Kong records winter's first bird flu death - Duration: 0:41.
Hong Kong has seen this winter's first bird flu death,... which is also its first and
only human case of the disease this season.
According to local media on Tuesday, the 75-year old man was infected during a visit to neighboring
Guangdong province in mainland China last month, where he bought a chicken from a market.
Suffering from chest discomfort,... the man was taken to hospital upon his arrival back
in Hong Kong earlier in the month.
He died on Sunday after testing positive for the H-7-N-9 strain of bird flu.
More than 50 people who had contact with the victim, including people who lived with him,
have been placed under medical surveillance.
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Peter Allen Inn in Kinsman mixes the modern with historic - Duration: 2:57.
County has been
renovated and
expanded.
History meets the
modern world.
It's the Peter Allen
House in Kinsman --
once the home and
office of doctor Peter
Allen -- now an inn
and event center.
Join me on a tour of
Trumbull County's
newest destination
point.
The Peter Allen Inn
and Event Center sits
just off Route 87 in
Kinsman -- it's serene
setting punctuated by
the houses bold
federal architecture.
The molding around
the roofline and
windows is all original.
"WHAT WE WANTED
TO DO WAS TO
SAVE THE HOUSE.
WE THOUGHT IT
WAS SO
IMPORTANT
ARCHITECTUALLY."
Dick Thompson owns
what is now the inn
and event center --
constructed around
the house built by Dr.
Peter Allen in 1821.
This was 1936. It
hasn't changed.
Over those 195 years
-- the house had only
three owners -- Dick
Thompson is the
fourth.
"IT NEEDED SOME
ATTENTION. IT HAD
BEEN ABANDONED
FOR SIX OR SEVEN
YEARS."
It took three years of
renovating to come up
with the inn and event
center of today.
"THERE'S THE
ENTRANCE TO THE
OLD HOUSE RIGHT
THERE, AND THIS
WAS A WRAP
AROUND PORCH."
Dick Thompson gave
me a tour. This was
the kitchen -- where
the original bake oven
is still in place.
"NOW WHAT YOU
CAN'T SEE IS THAT
THIS WAS ALL
CHARRED BLACK.
AND I DIDN'T GET
HERE BEFORE THE
PAINTERS DID OR
I'D HAVE LEFT IT
BACK."
The windows in the
hallway have the float
glass from the original
house. The wood
floors are original, too.
The molding in the
main room was
removed at one point
-- and then brought
back. In fact the
there's molding
throughout the house
-- with one of the
features being that it's
different in every
room.
"THIS WAS
ACTUALLY AN
ORIGINAL
BEDROOM."
The bedrooms are
part of the bed and
breakfast inn. On the
desk in one of the
rooms is a picture of
Peter Allen himself.
"NOW THIS IS
ACTUALLY
HERITAGE HALL,
AND THIS IS WHERE
OUR MAJOR
EVENTS TAKE
PLACE."
The event center is all
new -- built by
Thompson as part of
the expansion. It can
hold parties for 70.
Add the rest of the
house -- and the
outside space -- and
the property can fit
250.
"THIS IS THE
KINSMAN TAVERN."
Also new is the bar --
though it was
constructed with
materials from an old
Trumbull County barn.
And check out the
seats.
"THESE STOOLS
ACTUALLY CAME
FROM THE
UNIVERSITY OF
EDENBURGH,
SCOTLAND,
LIBRARY."
Mixing with historic
with the modern -- with
the emphasis on
historic -- is what
Kinsman's new Peter
Allen Inn and Event
Center is all about.
The inn and event
center has been open
since June -- so it's
still getting started. It's
only open to the public
on Friday's for dinner
and drinks. But you
can book a room -- or
book party anytime.
Next in
sports..Warren
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