170 lines
6.3 KiB
Plaintext
170 lines
6.3 KiB
Plaintext
Date: Fri, 2 Apr 93 04:00:37
|
|
From: ISU Space Power Digest <digests@isu.isunet.edu>
|
|
Reply-To: Space-Power-request@isu.isunet.edu
|
|
Subject: Space Power Digest V1 #004
|
|
To: Space.Power.Talkers
|
|
Precedence: bulk
|
|
|
|
|
|
Space Power Digest Fri, 2 Apr 93 Volume 1 : Issue 004
|
|
|
|
Today's Topics:
|
|
preparing for 21st century
|
|
|
|
Welcome to the ISU Space Power Digest!! This digest will
|
|
seek to provide a forum for discussion of wireless power
|
|
transmission, solar power systems. It is hosted by alumni
|
|
and faculty of the International Space University, but is
|
|
open to everyone with an interest in this area.
|
|
|
|
Send e-mail contributions to: space-power@isu.isunet.edu
|
|
To subscribe or unsubscribe, send your e-mail request to:
|
|
space-power-request@isu.isunet.edu
|
|
If you experience technical problems, send an e-mail message
|
|
detailing the problem to: digests@isu.isunet.edu
|
|
----------------------------------------------------------------------
|
|
|
|
Date: Thu, 1 Apr 1993 20:11 EDT
|
|
From: USRNAME <CANOUGH%BINGVAXA.bitnet@CUNYVM.CUNY.EDU>
|
|
Subject: preparing for 21st century
|
|
|
|
Greetings space-power subscribers. Anyone have some input to
|
|
this topic? If you have read something relevant, please post
|
|
reviews or excerpts. (When posting excerpts, be sure to
|
|
reference them.) One way for us to all keep abreast of the
|
|
wide variety of developments which are relevant to solar
|
|
power and wireless power transmission, is for each of us to
|
|
post short notes summarizing some piece of information new
|
|
to you. In addition to keeping the solar power and WPT
|
|
community informed, I want to build up a bibliography to
|
|
have available to persons who are new to the field or just
|
|
interested in becoming informed. So please attach as
|
|
complete reference information as you can when posting
|
|
summaries or excerpts.
|
|
|
|
Information that would be appropriate for this topic
|
|
includes (but not limited to):
|
|
|
|
PV array info, research
|
|
solar thermal technologies
|
|
storage technology for solar power systems
|
|
phased arrays
|
|
FET developments and use
|
|
rectennas
|
|
power beaming info, hardware
|
|
satellite power systems i.e on comm sats etc
|
|
deployable solar arrays
|
|
Russian solar sail/reflector
|
|
power system for Mir, Freedom
|
|
environmental impacts (electric interference, health effects
|
|
of microwaves, power beam effects on atmosphere, etc.)
|
|
real cost of energy
|
|
energy needs of Earth and space users
|
|
demo projects, proposed and in progress (such as METS,
|
|
Alaska 21, Reunion Island...)
|
|
early commercial uses for wireless power transmission
|
|
how to use solar and or beamed power for South Pole Station
|
|
beam optics
|
|
frequency allocation possibilities for beamed power
|
|
commercial prospects for solar power (both terrestrial and
|
|
celestial)
|
|
|
|
****************************************************
|
|
The SUNSAT Energy Council meeting was held in Washington DC
|
|
on March 26, minutes will be posted very soon! At the
|
|
meeting Peter Glaser strongly recommended we read the book
|
|
"Preparing for the 21st Century" by Paul Kennedy (Random-
|
|
House). I went to check this book out of the library and,
|
|
not only was it checked out, there was a waiting list for
|
|
it! Figuring this (combined with Peter's recommendation)
|
|
must mean it's really good, I headed over to my local book
|
|
store an bought a copy.
|
|
|
|
Here are some excerpts from the first couple chapters. In
|
|
chapter one, he reviews the history of Britain in the
|
|
context of population pressures. He goes into how the dire
|
|
problems predicted by Malthus were avoided, at least for
|
|
Britain (if not for some of its colonies). In chapter 2 he
|
|
lays out the distribution and growth in the world's
|
|
population. Every time I see these numbers, I cringe.
|
|
|
|
p 6
|
|
|
|
"Nevertheless, three developments permitted the British
|
|
people to escape the fate Malthus predicted for them. The
|
|
first was emigration: people left the British Isles in vast
|
|
numbers, in search of better conditions elsewhere. While
|
|
only slightly more than 200 000 emigrated in the 1820's,
|
|
that figure trebled in the following decade and reached
|
|
almost 2.5 million in the 1850's. Between 1815 and 1914,
|
|
around 20 million Britons left the country, a massive exodus
|
|
relative to the overall population (By 1900, the British
|
|
population was about 41 million; without emigration it would
|
|
have been over 70 million)"
|
|
|
|
Notice that more than 1/3 of the population emigrated. The
|
|
other 2 developments were improvements in farming and the
|
|
industrial revolution.
|
|
|
|
p 12
|
|
|
|
"In the eighteenth century, the global population was adding
|
|
another quarter of a billion every seventy-five years;
|
|
today, such an increase occurs every three years."
|
|
|
|
Go back and read that again!!! Every 3 (!!) years, one
|
|
quarter of a billion people are added to the world.
|
|
|
|
|
|
p 22
|
|
|
|
"In 1825, as Malthus was making the final amendments to his
|
|
original Essay on Population, about 1 billion human beings
|
|
occupied the planet, the race having taken thousands of
|
|
years to reach that total. By then, however,
|
|
industrialization and modern medicine were permitting
|
|
population to rise at an increasingly faster rate. In the
|
|
following 100 years, the world's population doubled to 2
|
|
billion and in the following half century (1925 to 1976) it
|
|
doubled again, to 4 billion. By 1990, the figure had
|
|
advanced to 5.3 billion."
|
|
|
|
On page 23 is a graph showing population growth trends for
|
|
developed and developing countries. Whereas developed
|
|
countries have about 1 billion people today and will grow to
|
|
1.5 billion by 2000, developing countries have the other 3.5
|
|
billion which will grow to 6 billion by 2000.
|
|
|
|
p 23
|
|
|
|
"In the 1985-1990 period, the earth's enlarged population
|
|
was adding about 88 million people annually-equal to the
|
|
population of Mexico City today."
|
|
|
|
Just as a comparison, next year, there will(at least) 88
|
|
million more people, and this amounts to the yearly traffic
|
|
at the O'Hare airport, which moves about one plane load per
|
|
MINUTE!
|
|
|
|
Well, that's enough for today. As I told a friend of mine,
|
|
if we are going to use the emigration strategy (into space)
|
|
to alleviate the population pressure on Earth, we will be
|
|
launching a rocket every minute! Think on that...
|
|
|
|
--- Gay
|
|
|
|
e-mail(Internet): CANOUGH@BINGVAXA.CC.BINGHAMTON.EDU
|
|
(GEnie) : G.CANOUGH
|
|
phone/fax= 607 785 6499 voice mail = 800 673 8265
|
|
radio call sign: KB2OXA
|
|
|
|
'Snail Mail:
|
|
ETM, Inc.
|
|
PO Box 67
|
|
Endicott, NY 13761
|
|
|
|
------------------------------
|
|
|
|
End of Space Power Digest Volume 1 : Issue 004
|
|
------------------------------
|