Geothermal energy

2007-07-11 Thread jon louis mann
Gillian R. Foulger, Ph.D. Full professor of Geophysics, University of
Durham:
Is There a Free Lunch Out There? 
Geothermal Energy, its Potential and Challenges as a Renewable,
Alternative Energy Resource.

As doom and gloom predictions from scientists about global warming rise
to a crescendo, there is increasing public demand to know what can be
done. 
Basically, there are two options – consume less, and/or find renewable
alternative energy sources to burning hydrocarbons.
Geothermal energy is one possible alternative.  How much of our energy
consumption does it currently satisfy? What is its realistic potential,
and what are the technical challenges to maximizing that potential?
How green is it really, and is it truly renewable? Does it offer a free
lunch, or are there environmental costs in utilizing it?  Are your tax
dollars at work on these problems?
Gillian R. Foulger, U.K., and director of her own geothermal
consultancy company, presents some of the hottest geothermal issues,
including an overview of how this resource is utilized around the
world, what direction technology is moving, and what is going on in the
US.  She has worked with the U.S. Geological Survey for over 20 years
on earthquake seismology, GPS
surveying and geothermal energy.  Her first work in the field was in
Iceland, where she made some remarkable discoveries of geothermal
resources.  Since then she has been a leading expert in the field.

Worldwide, one of the biggest users of geothermal resources is Iceland
where 40% of their energy is from this source. Worldwide, there are
about 9,000 Megawatts of electricity generated geothermally, with about
2,500 Megawatts of that being generated in the USA.  2,200 Megawatts
are generated in California, mostly from The Geysers, a geothermal area
near Santa Rosa that is as unique as Hawaii is unique as a volcanic
area.  The resource is expected to last for several decades more, at
which time much of the fluid will have been mined out of the rocks.

Looking to the future, there are various possible ways to get
geothermal power out of the ground. One is to drill a deep well to mine
heat directly off the magma beneath volcanoes. Dr. Foulger "wouldn't
bet her pension on that one", but considers it an interesting idea in
the Chinese sense. 
Another is to put a coil under the ground in the yard, far enough below
the surface that the temperature is fairly constant. With a heat
exchanger it is energy efficient to get heat during the winter and sink
heat in the summer. She said this kind of thing is becoming ever more
common in Europe.


  

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Re: Who Killed the Electric Car?

2007-07-11 Thread Dave Land
On Jul 10, 2007, at 10:44 PM, jon louis mann wrote:

> i think the big three got a huge scare with the success of toyotas's
> hybrids.  i din't buy the i-phone and am waiting for the competitiion
> to come out with better and cheaper models.  i will probably jump on
> the hybrid, or e-car bandwagon, when better models come out.

I am about at that point now. Soonish -- in the next year at most --
one or both of our cars will need to be replaced. It'll be with an
electric or hybrid, most likely the latter.

As for the iPhone, three guys where I work got 'em. It's just not
that exciting. It has a fine browser, but it doesn't have cut-and-
paste, so you can look, but you can't _do_ anything with the info you
get through it. It has a cool map application that crashes after about
30 seconds. It's not even all that useful as a phone: it's hard to
dial and one guy had to go out and spend another $100 on a Jawbone
bluetooth headset because it is not even loud enough to use as a
phone.

I am a huge Mac bigot and I still cannot see myself buying one -- or
a cheap imitation -- anytime soon.

Correction: anytime.

Dave "Crackberry addict" Land

Fashion Victims Maru

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Weekly Chat Reminder

2007-07-11 Thread William T Goodall

As Steve said,

"The Brin-L weekly chat has been a list tradition for over six
years. Way back on 27 May, 1998, Marco Maisenhelder first set
up a chatroom for the list, and on the next day, he established
a weekly chat time. We've been through several servers, chat
technologies, and even casts of regulars over the years, but
the chat goes on... and we want more recruits!

Whether you're an active poster or a lurker, whether you've
been a member of the list from the beginning or just joined
today, we would really like for you to join us. We have less
politics, more Uplift talk, and more light-hearted discussion.
We're non-fattening and 100% environmentally friendly...
-(_() Though sometimes marshmallows do get thrown.

The Weekly Brin-L chat is scheduled for Wednesday 3 PM
Eastern/2 PM Central time in the US, or 7 PM Greenwich time.
There's usually somebody there to talk to for at least eight
hours after the start time.

If you want to attend, it's really easy now. All you have to
do is send your web browser to:

  http://wtgab.demon.co.uk/~brinl/mud/

..And you can connect directly from William's new web
interface!

My instruction page tells you how to log on, and how to talk
when you get in:

  http://www.brin-l.org/brinmud.html

It also gives a list of commands to use when you're in there.
In addition, it tells you how to connect through a MUD client,
which is more complicated to set up initially, but easier and
more reliable than the web interface once you do get it set up."

-- 
William T Goodall
Mail : [EMAIL PROTECTED]
Web  : http://www.wtgab.demon.co.uk
Blog : http://radio.weblogs.com/0111221/

"This message was sent automatically using launchd. But even if WTG
 is away on holiday, at least it shows the server is still up."
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Who Killed the Electric Car?

2007-07-11 Thread jon louis mann
We and the Europeans have poured billions into alternative energy
sources with modest results.  Only wind has shown any market
potential...

i don't know if only wind has shown market potential.  i have made
money on the stock market with solar.
i've also been successful investing in the euro:
http://www.huffingtonpost.com/huff-wires/20070710/dollar/


   

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RE: Who Killed the Electric Car?

2007-07-11 Thread Ronn! Blankenship
At 10:48 PM Tuesday 7/10/2007, Dan Minette wrote:



>Government putting money in a field doesn't guarantee success.  [...]
>
>We and the Europeans have poured billions into alternative energy sources
>will modest results.  Only wind has shown any market potential


Well, that's no surprise:  it's the one thing (even more than our tax 
money) that government by its very nature provides a limitless supply of . . .


Hot Air Buffoons Maru


-- Ronn!  :)



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Who Killed the Electric Car?

2007-07-11 Thread jon louis mann
some  other questions, and observations, dan...
would you agree that moore's films (which many people refuse to see
because their minds are made up) have stimulated a debate, not only on
health care reform, but on gun control,  the automobile and defense
industries?  would you agree that this is a good thing?   how do you
feel about pharmaceuticals and defense being americas's largest
industries? 
do you believe that the "vast right wing conspiracy" (whether or not it
exists as a coordinating alliance~) supports pure science?  these are
people who believe in creationist science and are adamantly opposed to
stem cell research.
i agree that government can make a mess of health care, social
security, education, and the justice system, but do you believe the
profit oriented establishment can provide a better alternative?  
jon


 

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with the Yahoo! Search movie showtime shortcut.
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Who Killed the Electric Car?

2007-07-11 Thread jon louis mann
When did I say I thought Rush or Fox were good sources?  

you didn't, i was using the talk radio and fox example for comparison. 
that polemic is a lot more suspicious than moore's theater.  

i consider all the parties in the mideast to be out of control, but if
i had to choose the lesser evil, i would pick israel.  in a choice
between bush and moore i would choose moore.  when moore went off on
blitzer and gupta,  he was right about how america has treated the
rescue workers, and he has been proven to be right about many of the
claims made in fahrenheit 911.  he was also honest in sicko when
ranking the us as slightly higher than cuba, in overall medical care,
(IF you have health coverage) with slovenia in the middle.  moore was
right to blast cnn for not telling the truth to the american people
(especially about the pharmaceutical companies, who are also major cnn
sponsors).

as for moore's  numbers on money spent by Cuba and the US, i would
certainly give more credibility to a unattributed bbc report, than any
projection by bush.  i would also consider the fact that cuba is far
more limited in resources (and under embargo) but is still able to
provide free medical care for its citizens.  i pay a lot for my medial
plan, plus co-payments and deductibles.  i would rather pay higher
taxes for national care that would benefit me rather than insurance and
providers.  that is what moore is saying and most americans will agree.

of course there is a longer wait in canada for emergency heart
catheterization than there is in america, IF you have health
coverage...  i don't see gupta talking about people dying in hospital
waiting rooms, or being sent away because they didn't have
authorization. he did come out after, and admit that there is room for
improvement across the board.  no apology, yet, from cnn for being
wrong about fahrenheit 911.

all in all i still say moore provides a more balanced analysis than fox
and other emotionally biased news sources, and he is not boring. i
haven't "sicko" yet, but i have heard it makes this failure of american
health care glaringly apparent.  i suffered from gall stones for ten
years because i was treated with drugs that only relieved the symtoms. 

i believe in gun control, too, and have mentioned more than once that i
did not like what moore did when he ambushed charlton heston, in
columbine.  i also had a visceral reaction to his media collage with
louis armstrong singing "what a wonderful world".  it was a powerful
emotional message.

it is true that government putting money in research doesn't guarantee
success.  it is also true that wars have created advances in medical
technology.  small design teams can make breakthroughs where larger
facilities fail. i would like to see practical and cost effective
research, but both parties in congress are not exercising their
oversight.  i don't know what
would be required for that to happen, other than to elect a new
congress.

we agree that islamic terrorists share the same goal of fighting for a
resurgence of muslim supremacy, but are they really the threat to
america that bush makes them out to be, and could there be ways to
support moderate arab forces, other than regime overthrow? 
i don't know if it is a reasonable conclusion is that battery cars are
not a cost effective means of
transportation.  I saw the film and they did mention improvement were
made to the original prototype.  i got the impression that more
research was needed and the conclusion was the car makers stopped
because they were able to lobby successfully against the legislation
that required them to provide alternatives. tha is why they destroyed
the prototypes.

yes, the best response to pat answers from the left and the right is to
hold them up to rigorous, skeptical analysis.  i believe the films
moore has made do a public service in exposing many of the failures of
the automobile industry, health care and the tragic consequences of
easy access to automatic weapons.  he isn't perfect by a long shot, but
much preferable to rabble rousers like rush limbaugh, bill o'reilley or
dennis miller.

i don't know if there are fundamental problems in developing
alternative energy sources so we shouldn't try.  i am not a scientist,
but i wonder what the result would be if we invested one tenth of what
we spend on making war?   i absolutely agree we should be investing in
basic sciences that can lead to future advances in energy technology,
including fusion and plasma physics.  i would not rule out engineering
applications until we know enough science. solar power is already
showing progress due to increased competition.  we have not made as
much in the way of advances in biofuel as we could if there was a
manhattan type project.  of course there are risks with every new
technology and risk/benefit analysis need to be done. we should have
properly assessed the problems involved with nuclear waste.  we know
how to process spent fuel rods for example, but then we are