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microwave power



 
 
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  #1  
Old September 15th 08, 05:10 PM posted to sci.astro.amateur
Worm Spamley
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Posts: 8
Default microwave power

During the week of May 5-9, 2008, a key step on the path to Space-Based
Solar Power was achieved: a "first-of-a-kind" long-range demonstration of
solar-powered wireless power transmission using a solid-state phased array
transmitter located on the U.S. island of Maui (on Haleakala) and receivers
located on the island of Hawai'i (Mauna Loa) and airborne.

The demonstration, achieved by Managed Energy Technologies LLC of the U.S.
and sponsored by Discovery Communications, Inc., involved the transmission
of RF energy over a distance of up to 148 kilometers (about 90 miles):
almost 100-times further than a major 1970s power transmission performed by
NASA in the Mojave Desert in California.

The 2008 project (which lasted only 5 months and cost less than $1M) proved
that real progress toward Space Solar Power can be made quickly, affordably
and internationally, including key participants from the U.S. and Japan.



Image: First-of-a-Kind Solar-Powered Wireless Power Transmission
Experiment - May 2008

A number of key technologies were integrated and tested together for the
first time in this project, including solar power modules, solid-state FET
amplifiers, and a novel "retrodirective" phase control system. In addition,
the project developed the first ever "field-deployable" system-developing
new information regarding the prospective economics of space solar power /
wireless power transmission systems.

The project was sponsored by Discovery Communications as part of its Project
Earth series, and produced by Impossible Pictures Ltd. of the U.K. The
television program resulting from the project will first air on the
Discovery Channel in the U.S. on 12 September 2008 at 10:00 pm, as part of
the Project Earth series.

"This milestone demonstrates that Space-Based Solar Power deserves further
study as one important answer to America's future energy needs," said Mark
Hopkins, Senior Vice President of the National Space Society. "This kind of
demonstration is critical to the incremental development of breakthrough
technologies."

The project's leader was former NASA executive and physicist John C. Mankins
(Chief Operating Officer of Managed Energy Technologies LLC, and President
of the Space Power Association). Key participants included Professor
Nobuyuki Kaya of Kobe University in Japan and Frank Little of Texas A&M
University in the U.S. (both world leaders in WPT technology), and Dr.
Neville I. Marzwell of the California Institute of Technology. Students at
the two universities were largely responsible for fabrication of the
hardware for this first-of-a-kind experiment.

For background information on Space-Based Solar Power, please visit:
www.nss.org/settlement/ssp/


  #3  
Old September 15th 08, 05:51 PM posted to sci.astro.amateur
Worm Spamley
external usenet poster
 
Posts: 8
Default microwave power

Right you are !


During the week of May 5-9, 2008, a key step on the path to
Space-Based Solar Power was achieved: a "first-of-a-kind" long-range
demonstration of solar-powered wireless power transmission using a
solid-state phased array transmitter located on the U.S. island of
Maui (on Haleakala) and receivers located on the island of Hawai'i
(Mauna Loa) and airborne.


Just off the top of my head, I can come up with two reasons why such a
system could never be implemented in the US:

1. Someone will notice the word "radiation" in a description of how
the system works.

2. Someone will raise serious concerns about what might happen to poor
innocent birdies who might fly through the beam.

I'm sure there are numerous other objections.

--
Bert Hyman | St. Paul, MN |



  #4  
Old September 15th 08, 06:41 PM posted to sci.astro.amateur
Davoud[_1_]
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Posts: 1,989
Default microwave power

Someone wrote:
During the week of May 5-9, 2008, a key step on the path to
Space-Based Solar Power was achieved: a "first-of-a-kind" long-range
demonstration of solar-powered wireless power transmission using a
solid-state phased array transmitter located on the U.S. island of
Maui (on Haleakala) and receivers located on the island of Hawai'i
(Mauna Loa) and airborne.


Bert Hyman:
Just off the top of my head, I can come up with two reasons why such a
system could never be implemented in the US:

1. Someone will notice the word "radiation" in a description of how
the system works.

2. Someone will raise serious concerns about what might happen to poor
innocent birdies who might fly through the beam.

I'm sure there are numerous other objections.


3. Someone will (correctly) note its potential for use as a weapon.
The defense industry will drool and lickspittle neocons will be
convinced that because Bermuda or (insert name of your favorite sunny
land here) has a lot of experience with sunshine, we need a
trillion-dollar system of aluminum-foil hats and umbrellas to protect
us from Bermuda or (insert name of your favorite sunny land here).
After the hats and umbrellas have been sold to the government it will
be discovered that they were all built wrong, with the black,
energy-absorbing side up. It will be determined that America-hating
liberals are responsible for the error, and the government will
distribute them anyway, recommending that the public fix them with "s
little duct tape." It will turn out that Bermuda did not have the
"PHOtonic National Yadda-Yadda" (PHONY) weapon," but it will be too
late for them, and, or course. America-hating liberals will join the
French in asking whether we are absolutely sure that toasting Bermuda
was the right thing to do.

4. Someone will (correctly) note that in order to take advantage of
such a system we eill need to improve the efficiency of solar-power
arrays.

5. Someone will then (correctly) point out that if we can improve
the efficiency of solar-power arrays, there is abundant sunlight
striking the Earth, and a scheme to spend trillions to use inefficient,
fossil-fueled, air-polluting rockets to launch an obscenely expensive
space-based power system is utterly ridiculous. Neocons will say that
these people want the terrorists to win.

Davoud

--
Don't re-elect the failures of the past eight years. Vote for the futu
Obama-Biden in 2008! And to hell with the neocon lie machine.

usenet *at* davidillig dawt com
  #5  
Old September 16th 08, 03:07 AM posted to sci.astro.amateur
lal_truckee
external usenet poster
 
Posts: 409
Default microwave power

Bert Hyman wrote:

2. Someone will raise serious concerns about what might happen to poor
innocent birdies who might fly through the beam.


Perfect.

Instead of
"Let them eat cake!"

we have
"Let them eat squab!"
  #6  
Old September 16th 08, 12:52 PM posted to sci.astro.amateur
Helpful person
external usenet poster
 
Posts: 251
Default microwave power

On Sep 15, 10:07*pm, lal_truckee wrote:
Bert Hyman wrote:

2. Someone will raise serious concerns about what might happen to poor
innocent birdies who might fly through the beam.


Perfect.

Instead of
"Let them eat cake!"

we have
"Let them eat squab!"


Squab are extinct
  #7  
Old September 16th 08, 01:25 PM posted to sci.astro.amateur
Bert Hyman
external usenet poster
 
Posts: 174
Default microwave power

In

Helpful person wrote:

On Sep 15, 10:07*pm, lal_truckee wrote:
Bert Hyman wrote:

2. Someone will raise serious concerns about what might happen to
poor innocent birdies who might fly through the beam.


Perfect.

Instead of
"Let them eat cake!"

we have
"Let them eat squab!"


Squab are extinct


Squab are pigeons.

--
Bert Hyman St. Paul, MN
  #8  
Old September 16th 08, 04:51 PM posted to sci.astro.amateur
Helpful person
external usenet poster
 
Posts: 251
Default microwave power

On Sep 16, 8:25*am, Bert Hyman wrote:






Helpful person wrote:
On Sep 15, 10:07*pm, lal_truckee wrote:
Bert Hyman wrote:


2. Someone will raise serious concerns about what might happen to
poor innocent birdies who might fly through the beam.


Perfect.


Instead of
"Let them eat cake!"


we have
"Let them eat squab!"


Squab are extinct


Squab are pigeons.

--
Bert Hyman * * *St. Paul, MN * - Hide quoted text -

- Show quoted text -


Squab are passenger pigeons, hunted into extinction. The description
squab is often incorrecty used for othe small birds, including other
types of pigeon.
 




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