~e; EM observations #3
brian carroll <email@example.com>
Mon, 28 Feb 2005 19:01:56 -0600
[keywords] ICD, neurostimulation, urls, bookmarks,
links directory, book, electric universe, satellites,
remote sensing, imagery
electromagnetic observations -- #3
* tried to clean-up and simplify the http://www.electronetwork.org/
website a bit, including navigation and dropping some categories,
though i am now looking for a free, robust php/mysql script for
running a links directory (urls) so as to get some of the many
links people use, into one resource. still do not have the sense
of how to organize areas that overlap as of yet, such as 'features'
and 'education' and 'urls' for instance, so while things may pare
down a little they will reappear in another area again in time.
i looked at the hotscripts site for php/myql solutions and, again,
cannot locate something that is IMO appropriate, so decided that
instead of doing nothing, i would hand-code a links directory in
the meantime to some future incarnation of the site with a CMS/
content-management system for group development. maybe it is a
bit retro to do so though it is nice to do something lo-tech...
check it out: (slowly but surely...)
* reading about EM/radio waves, a little book about antennas, and
i am amazed to learn that radio waves can bend (as can light, yet
never thought of it this way). it is not just the ionosphere that
is reflecting waves back into the ground but also how they travel.
* these links built-up rather quickly and this should not
happen too too much, though i am making a links directory
and found what i consider some interesting things i would
rather share than discard, because interests in links has
been high on the list, so here are some more... (that is,
the bump in volume is temporary and will go down again or
become more spaced out (or i will, probably both!))...
Old TV shows get new product placements // incredible.
'...Warner Bros. Television is working on letting advertisers insert
computer-created images of stuff into the backgrounds of some repeat TV
comedies.' .. 'Or put more simply, this is virtual product placement.'
// a story about what it is like to live with an ICD (implantable
// cardioverter defibrillators) everyday. here in Minnesota this is
// a major industry. i had no idea the device 'activated' so often...
Living with the ZAPPER
'...most ICD patients move beyond these fears and form a unique bond
with their life-saving device. Some even give them names like "Zeus" or
"Helga." Many recount their first shock in terms as vivid as they would
describe their first kiss. Many are humbled by the device's ability to
stand guard over them.'
[and] Rewiring The Body // *** beyond ICDs... via wired.com
First came pacemakers. Now exotic implants are bringing new hope
to victims of epilepsy, paralysis, depression, and other diseases
'Mysterious Ways -- Many doctors are thrilled by this emerging vision
of the body electric because it provides fixes beyond the ken of the
medical mainstream. Life sciences today are heavily swayed by recent
advances in molecular biology. The Human Genome Project and other
well-funded efforts have cracked some of the inner workings of genes
and the biochemical pathways of disease. In contrast, science has paid
less attention to the role of electricity, which governs everything
from the ethereal transmission of thought to the rhythmic music of the
heart. The race to design and test new implantable devices could help
correct this imbalance.' [and] '"The body is on fire with electricity,"
says Dr. Stephen N. Oesterle, chief medical officer at Medtronic Inc (
MDT )., the No. 1 maker of implantable electrical devices. "If you
start with that concept, then all you need is imagination."' .....
'Neurostimulation has another selling point: Because the implants alter
tissue only at their points of contact, side effects are generally
[book] Electric Universe by David Bodanis // thanks *
// electricity, completely understood by the end of the 19th c.? joke?
[and] Pedro G Ferreira enjoys David Bodanis's
populist history of electricity, Electric Universe
The Great Magnet, the Earth
Geomagnetic Field Frequently Asked Questions
NOAA's Geomagnetic Links
geomagnetic landscape of magnetic fields above the
state of Minnesota, .US, as made by mapping program
the national atlas, http://www.nationalatlas.gov/
Compute Earth's Magnetic Field Values
The on-line magnetic field calculator "Geomag" computes the values of
the Earth's magnetic field elements for a given location and date or
// i read a book once by Thomas Hughes that stated that
// the gyroscope was one of the most important inventions
// during the 20th century, invented by Sperry. since that
// time i have been wondering whyso and here's a snippet...
Whistling Helium: Supercold Sound May Lead to Better GPS in Submarines
'With almost no moving parts, superfluid gyroscopes promise much more
sensitivity to rotational motion than their mechanical counterparts, a
useful trait considering that changes in the Earth's rotation must
constantly be added to the GPS system.' .. '"Presently, the Earth's
rotation is measured by radio telescopes around the world," Packard
said. "But if a superfluid gyroscope were used, it could make the
measurement with a faster turnaround."'
// i imagine business schools would eat this stuff up...
[ref.] How the Heroic Inventors Did It
An interview with Thomas P. Hughes, Ph.D. (1992) // ***
'...Another thing: these people generally preferred to invent entire
systems, rather than incremental improvements or components. They can
be called radical, breakthrough inventors.' .. 'They also had
repertoires of elements that they tended to repeatedly combine in new
ways. For instance, Elmer Sperry, the founder of what used to be the
Sperry Gyroscope Company, was a remarkably creative independent
inventor. He was responsible for a large number of seemingly diverse
inventions. The first time I read his list of inventions, I asked, how
can this be? He was described as an inventor of a street car, of
mining machinery, of a gyrocompass, and other remarkably different
artifacts. The theme, I found out, was that he repeatedly chose to
concentrate on the invention of a device, the essential feature of
which was feedback...'
[and] Elmer Ambrose Sperry Papers (1889-1930)
'In 1907 he began to explore the world of the gyroscope as he sought
to apply this technology to problems associated with airplane and ship
stabilization and control. Within a decade, Sperry had developed the
ship gyrostabilizer. gyrocompass, marine gyropilot, high-intensity
searchlight, and aerial torpedo. These gyroscopic inventions, which
incorporated the principles of automatic guidance and feedback control,
established Elmer Sperry as a high-technology pioneer. As Thomas Hughes
has pointed out, although Sperry did not use the modern terminology of
automation and cybernetics, these concepts were built into his
gyroscopic systems which relied on analog computers, servomotors, and
RST - The Remote Sensing Tutorial
What you can learn from sensors on satellites and spacecraft that look
inward at the earth and outward at the planets, the galaxies and, going
back in time, the entire universe - the cosmos.
[and] Electromagnetic Spectrum: The Photon and Radiometric Quantities
Earthshots: Satellite Images of Environmental Change
Visible Earth: Sensors -- a searchable directory of
images, visualizations, and animations of the Earth
* please forward to your friends and colleagues *
send ideas to the list or info @ electronetwork.org
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