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[pct-l] RE: pct-l Digest, Vol 6, Issue 18, Ultralight Solar cells
- Subject: [pct-l] RE: pct-l Digest, Vol 6, Issue 18, Ultralight Solar cells
- From: jcoyle at sanjuan.edu (John Coyle)
- Date: Fri Oct 17 14:58:32 2003
When I hike I carry only three items that need batteries: a
headlamp(Aurora,) a little radio(Aiwa CR-LD120,) and a digital camera(Canon
S45.) The headlamp and radio both take aaa batteries(headlamp-3, radio-1,)
however the instructions for the headlamp indicate to use alkaline batteries
so I'm not sure if rechargeable batteries would be practical in that
application. Alkaline batteries last a long time in my LED light and one set
might be enough for an entire thru-hike, depending on usage, and in any case
could be replaced using a bump box. It might be practical using a recharger
for my radio battery, but it only uses one aaa, and let's face it, they are
so light I don't mind carrying a few extras. Now my camera goes through
special expensive Canon batteries very fast and I would be most interested
in a small portable solar recharger for it.
J-CO
[mailto:pct-l-request@mailman.backcountry.net]
Sent: Friday, October 17, 2003 10:00 AM
To: pct-l@mailman.backcountry.net
Subject: pct-l Digest, Vol 6, Issue 18
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Today's Topics:
1. Re: New Snickers Bar (Ilja Friedel)
2. ultralight solar cells (Ilja Friedel)
3. Oregon B&B Fires: Struck by Lightning (Craig Milo Rogers)
4. Re: ultralight solar cells (Hayduke)
5. RE: Oregon B&B Fires: Struck by Lightning (David Dalbey)
6. RE: ultralight solar cells (Judson Brown)
7. Re: Oregon B&B Fires: Struck by Lightning (Steve Stenkamp)
8. RE: Oregon B&B Fires: Struck by Lightning (Hiker)
9. Re: wishing and hoping (Hiker)
10. Re: ultralight solar cells (Ilja Friedel)
11. Re: late hikers (goslowgofar)
12. Re: ultralight solar cells (CMountainDave@aol.com)
13. Re: ultralight solar cells (Gray)
14. Re: Oregon B&B Fires: Struck by Lightning (CMountainDave@aol.com)
15. Re: ultralight solar cells (Hiker)
16. Re: ultralight solar cells (CMountainDave@aol.com)
17. Re: ultralight solar cells (Ilja Friedel)
18. Re: ultralight solar cells (Gray)
19. RE: ultralight solar cells[Scanned] (Steve Jackson)
20. Re: ultralight solar cells (Edmond Meinfelder)
21. Hike partner on 11/8 to do first 20 mi from Mex Border
(Linda Jagger)
22. Re: ultralight solar cells (CMountainDave@aol.com)
23. PCTA Position Openning - Trail Operations Manager
(Bighummel@aol.com)
----------------------------------------------------------------------
Message: 1
Date: Thu, 16 Oct 2003 12:06:45 -0700 (PDT)
From: Ilja Friedel <ilja@cs.caltech.edu>
Subject: Re: [pct-l] New Snickers Bar
To: "pct-l@mailman.backcountry.net" <pct-l@mailman.backcountry.net>
Message-ID:
<Pine.LNX.4.33L0.0310161205060.15369-100000@orchestra.cs.caltech.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII
On Thu, 16 Oct 2003 maurer@earthlink.net wrote:
> Haven't tried one yet since I can't find them yet. Anybody seen these
> around?
>
> http://www.snickersmarathon.com/
Not tried it. But It is funny that Snickers used to be called Marathon in
the U.K.
http://search.csmonitor.com/durable/1999/03/18/p23s2.htm
And Twix was called Raiders in Germany. Wonder when we get Raiders bars
for workouts...
Ilja.
------------------------------
Message: 2
Date: Thu, 16 Oct 2003 15:03:40 -0700 (PDT)
From: Ilja Friedel <ilja@cs.caltech.edu>
Subject: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID:
<Pine.LNX.4.33L0.0310161452290.18852-100000@orchestra.cs.caltech.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII
Hi,
a friend of mine is building a solar powered airplane. He showed me
samples of solar cells that are basically thin foils of plastic. They flex
easily and weight next to nothing (2g-4g for a decent powered one). Here
you can find examples (scroll down to PowerFilm):
http://www.ecovantageenergy.com/catalog/subcat132.htm
(Don't have anything to do with the company)
Hope this is helpfull for the 2004 people. But let's think big for a
moment: Assume a through-hiker will be able to generate (using cells on
tent, clothing) on the order of 1kW of electricity fairly consistently.
How would having access to electricity change hiking? What appliances
would we carry?
This comes to my mind right now:
- ultralight electrical stove
- high powered lights for night hiking
- [assuming advanced storage technology] heated sleeping bags
- really loud boom boxes on the trail ;-)
- small fridge (in combination with the stove maybe)
Other ideas?
Ilja.
------------------------------
Message: 3
Date: Thu, 16 Oct 2003 15:24:50 -0700
From: Craig Milo Rogers <rogers@isi.edu>
Subject: [pct-l] Oregon B&B Fires: Struck by Lightning
To: pct-l@mailman.backcountry.net
Message-ID: <20031016222450.GB17837@isi.edu>
Content-Type: text/plain; charset=us-ascii
The B&B Complex fires in central Oregon, which disrupted the
continuous hiking line of many of this year's PCT class, have been
officially declared to have been caused by lightning.
There has been much speculation that the fires were
deliberately set in advance of President Bush's visit to the area.
Acording to the following press release, the newly-issued arson
investigation report says that the fires were started by lightning in
storms that passed through the area during Aug 4-7. The fires
smouldered until reported on Aug 19.
http://www.fs.fed.us/r6/centraloregon/news/2003/10/031015bandb.shtml
Craig "Computer" Rogers
------------------------------
Message: 4
Date: Thu, 16 Oct 2003 16:52:56 -0700
From: "Hayduke" <hayduke@toughguy.net>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID: <006701c39440$a33c1f30$670a0a0a@ci.flagstaff.az.us>
Content-Type: text/plain; charset="iso-8859-1"
all of those applications are high powered (except maybe the boombox
depending how load)
Electricity to heat is not a very efficient exchange. Trying to convert
sunlight to heat via electricity as intermediate could never be as good as
using the sunlight for heat directly ;-)
The uses that came to my mind immediately are for communications mostly. I
see it powering a satelite phone and then using that to upload journals and
digital images. At the very least you could recharge the camera batteries
during the day.
In 95 I hiked in the sierras for 10 weeks, and we both carried little solar
AA chargers velcroed to the tops of our packs (my partner attacked his to
his hat). We mostly used the AA for headlamps and our gameboy ;-)
----- Original Message -----
From: "Ilja Friedel" <ilja@cs.caltech.edu>
To: <pct-l@mailman.backcountry.net>
Sent: Thursday, October 16, 2003 3:03 PM
Subject: [pct-l] ultralight solar cells
> Hi,
>
> a friend of mine is building a solar powered airplane. He showed me
> samples of solar cells that are basically thin foils of plastic. They flex
> easily and weight next to nothing (2g-4g for a decent powered one). Here
> you can find examples (scroll down to PowerFilm):
> http://www.ecovantageenergy.com/catalog/subcat132.htm
> (Don't have anything to do with the company)
>
> Hope this is helpfull for the 2004 people. But let's think big for a
> moment: Assume a through-hiker will be able to generate (using cells on
> tent, clothing) on the order of 1kW of electricity fairly consistently.
> How would having access to electricity change hiking? What appliances
> would we carry?
>
> This comes to my mind right now:
> - ultralight electrical stove
> - high powered lights for night hiking
> - [assuming advanced storage technology] heated sleeping bags
> - really loud boom boxes on the trail ;-)
> - small fridge (in combination with the stove maybe)
>
> Other ideas?
>
>
> Ilja.
>
> _______________________________________________
> pct-l mailing list
> pct-l@mailman.backcountry.net
> unsubscribe or change options:
> http://mailman.hack.net/mailman/listinfo/pct-l
------------------------------
Message: 5
Date: 16 Oct 2003 17:15:24 -0700
From: "David Dalbey" <david@dalbey.org>
Subject: RE: [pct-l] Oregon B&B Fires: Struck by Lightning
To: pct-l@mailman.backcountry.net
Message-ID: <AJEPKLIKKCDNKOAKPLFEMEIICGAA.david@dalbey.org>
Content-Type: text/plain; charset="US-ASCII"
I just heard on OPB that the OWF, (Oregon Wildlife Federation) is
appealing that ruling, Specifically that it smouldered for two weeks
given the tinderbox conditions, the flyovers of Bush's secret service
and the coincidence of the timing.
David
david@dalbey.org
> -----Original Message-----
> From: pct-l-bounces@mailman.backcountry.net
> [mailto:pct-l-bounces@mailman.backcountry.net]On Behalf Of Craig Milo
> Rogers
> Sent: Thursday, October 16, 2003 3:25 PM
> To: pct-l@mailman.backcountry.net
> Subject: [pct-l] Oregon B&B Fires: Struck by Lightning
>
>
> The B&B Complex fires in central Oregon, which disrupted the
> continuous hiking line of many of this year's PCT class, have been
> officially declared to have been caused by lightning.
>
> There has been much speculation that the fires were
> deliberately set in advance of President Bush's visit to the area.
> Acording to the following press release, the newly-issued arson
> investigation report says that the fires were started by lightning in
> storms that passed through the area during Aug 4-7. The fires
> smouldered until reported on Aug 19.
>
> http://www.fs.fed.us/r6/centraloregon/news/2003/10/031015bandb.shtml
>
> Craig "Computer" Rogers
> _______________________________________________
> pct-l mailing list
> pct-l@mailman.backcountry.net
> unsubscribe or change options:
> http://mailman.hack.net/mailman/listinfo/pct-l
>
------------------------------
Message: 6
Date: Thu, 16 Oct 2003 17:36:17 -0700
From: "Judson Brown" <judsonb@internetcds.com>
Subject: RE: [pct-l] ultralight solar cells
To: "'Ilja Friedel'" <ilja@cs.caltech.edu>,
<pct-l@mailman.backcountry.net>
Message-ID: <000701c39446$adbfb6f0$1455f142@pounder>
Content-Type: text/plain; charset="us-ascii"
Well, dammit, if we're dreaming, I'd like a blender! Nothin' says "Happy
Trails" like a 3L Platypus full o' Huckleberry Margaritas!
-----Original Message-----
From: pct-l-bounces@mailman.backcountry.net
[mailto:pct-l-bounces@mailman.backcountry.net]On Behalf Of Ilja Friedel
Sent: Thursday, October 16, 2003 3:04 PM
To: pct-l@mailman.backcountry.net
Subject: [pct-l] ultralight solar cells
Hi,
a friend of mine is building a solar powered airplane. He showed me
samples of solar cells that are basically thin foils of plastic. They flex
easily and weight next to nothing (2g-4g for a decent powered one). Here
you can find examples (scroll down to PowerFilm):
http://www.ecovantageenergy.com/catalog/subcat132.htm
(Don't have anything to do with the company)
Hope this is helpfull for the 2004 people. But let's think big for a
moment: Assume a through-hiker will be able to generate (using cells on
tent, clothing) on the order of 1kW of electricity fairly consistently.
How would having access to electricity change hiking? What appliances
would we carry?
This comes to my mind right now:
- ultralight electrical stove
- high powered lights for night hiking
- [assuming advanced storage technology] heated sleeping bags
- really loud boom boxes on the trail ;-)
- small fridge (in combination with the stove maybe)
Other ideas?
Ilja.
_______________________________________________
pct-l mailing list
pct-l@mailman.backcountry.net
unsubscribe or change options:
http://mailman.hack.net/mailman/listinfo/pct-l
------------------------------
Message: 7
Date: Thu, 16 Oct 2003 19:03:45 -0700
From: "Steve Stenkamp" <sskamp@bendnet.com>
Subject: Re: [pct-l] Oregon B&B Fires: Struck by Lightning
To: "pct-l" <pct-l@backcountry.net>, "David Dalbey" <david@dalbey.org>
Message-ID: <002801c39452$edfcc260$cda5b242@stenkamp>
Content-Type: text/plain; charset="iso-8859-1"
I don't question the cause of the B & B fires. This summer I worked a fire
that was a holdover from 5 days and in 1996 the Elk Lake fire was a holdover
for 17 days. A fire that same summer on the Willamette side was a holdover
for almost a month.
> > Subject: [pct-l] Oregon B&B Fires: Struck by Lightning
> >
> >
> > The B&B Complex fires in central Oregon, which disrupted the
> > continuous hiking line of many of this year's PCT class, have been
> > officially declared to have been caused by lightning.
> >
> > There has been much speculation that the fires were
> > deliberately set in advance of President Bush's visit to the area.
> > Acording to the following press release, the newly-issued arson
> > investigation report says that the fires were started by lightning in
> > storms that passed through the area during Aug 4-7. The fires
> > smouldered until reported on Aug 19.
> >
> > http://www.fs.fed.us/r6/centraloregon/news/2003/10/031015bandb.shtml
> >
> > Craig "Computer" Rogers
> > _______________________________________________
> > pct-l mailing list
> > pct-l@mailman.backcountry.net
> > unsubscribe or change options:
> > http://mailman.hack.net/mailman/listinfo/pct-l
> >
>
> _______________________________________________
> pct-l mailing list
> pct-l@mailman.backcountry.net
> unsubscribe or change options:
> http://mailman.hack.net/mailman/listinfo/pct-l
------------------------------
Message: 8
Date: Thu, 16 Oct 2003 19:53:53 -0700
From: Hiker <hiker@godlikebuthumble.com>
Subject: RE: [pct-l] Oregon B&B Fires: Struck by Lightning
To: pct-l@backcountry.net
Message-ID: <4.3.2.7.2.20031016194723.00e35bc0@fastpack.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 05:15 PM 10/16/03, David Dalbey wrote:
>I just heard on OPB that the OWF, (Oregon Wildlife Federation) is
>appealing that ruling, Specifically that it smouldered for two weeks
>given the tinderbox conditions, the flyovers of Bush's secret service
>and the coincidence of the timing.
I am starting to get really annoyed when every leftist organization tries
to twist every finding or action in order to blame Bush. Just like I got
really annoyed when every rightist organization twisted everything to blame
Clinton.
How in the world do you turn a forest service finding like this into a
political statement?
As Rodney Kings said: "Can't we just all get along...."
------------------------------
Message: 9
Date: Thu, 16 Oct 2003 20:06:37 -0700
From: Hiker <hiker@godlikebuthumble.com>
Subject: Re: [pct-l] wishing and hoping
To: pct-l@backcountry.net
Message-ID: <4.3.2.7.2.20031016195553.03dc62d0@fastpack.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 03:46 PM 10/15/03, CMountainDave@aol.com wrote:
> A difficult decision has
>to be made: Do I like and want -or need - my job enough not to lose it or
do
>I want to do a thru hike? If it is the former, why torture yourself wishing
>and hoping for 6 months of free time?
Life is all about balance. Why should you screw up your life after the hike
if that is not what you want to do. Remember HYOH
Try reading the book
"Six Months Off: How to Plan, Negotiate, and Take the Break You Need
Without Burning Bridges or Going Broke"
Here is a link to amazon.com's page for the book
http://tinyurl.com/r8sh
------------------------------
Message: 10
Date: Thu, 16 Oct 2003 20:39:47 -0700 (PDT)
From: Ilja Friedel <ilja@cs.caltech.edu>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID:
<Pine.LNX.4.33L0.0310162035380.25822-100000@orchestra.cs.caltech.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII
Hi Hayduke,
On Thu, 16 Oct 2003, Hayduke wrote:
> all of those applications are high powered (except maybe the boombox
> depending how load)
1kW of electricity (as mentioned) would be high powered. Enough to cook.
Imagine a 8x10 tarp made of these plastic sheet solar cells. Right now
this would cost a fortune, but prices drop steadily. And many hikers are
gearheads willing to shell out serious money.
> Electricity to heat is not a very efficient exchange. Trying to convert
> sunlight to heat via electricity as intermediate could never be as good as
> using the sunlight for heat directly ;-)
Well, I suggested to generate electricity during the day and store it for
the night. If you have a lightwight chemical alternative not involving
electricity - let me know. I've read the Soviets had tiny nuclear
batteries. Not sure if you can get them in the US...
Ilja.
------------------------------
Message: 11
Date: Thu, 16 Oct 2003 21:31:23 -0700 (PDT)
From: goslowgofar <goslowgofar@yahoo.com>
Subject: Re: [pct-l] late hikers
To: Christopher Willett <chwillet@indiana.edu>,
pct-l@mailman.backcountry.net
Message-ID: <20031017043123.51006.qmail@web20008.mail.yahoo.com>
Content-Type: text/plain; charset=us-ascii
--- Christopher Willett <chwillet@indiana.edu> wrote:
>
> Does anyone know if Sunburn, Steady, Shutterbug, and
> Clif are
> still hiking south?
As of Oct. 13, they were in Mt. Shasta City. They
plan to be done by early November.
Katy
__________________________________
Do you Yahoo!?
The New Yahoo! Shopping - with improved product search
http://shopping.yahoo.com
------------------------------
Message: 12
Date: Fri, 17 Oct 2003 00:51:13 EDT
From: CMountainDave@aol.com
Subject: Re: [pct-l] ultralight solar cells
To: pct-l@mailman.backcountry.net
Message-ID: <e6.404b1b77.2cc0cf41@aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 10/16/03 3:06:35 PM, ilja@cs.caltech.edu writes:
<< What appliances
would we carry? >>
I like the fridge idea. Would be great to have a cold beer in the Grand
Canyon
------------------------------
Message: 13
Date: Thu, 16 Oct 2003 22:49:47 -0700
From: "Gray" <gray_hiker@mindpoison.org>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID: <02b701c39472$794a2230$2a23e40c@galen>
Content-Type: text/plain; charset="iso-8859-1"
> I've read the Soviets had tiny nuclear
> batteries. Not sure if you can get them in the US...
Um, I'd be really interested in hearing where you heard about these, simply
because the amount of fissionable materiel needed is way more than anyone
that thruhikes would be willing to carry.
Gray
------------------------------
Message: 14
Date: Fri, 17 Oct 2003 01:51:35 EDT
From: CMountainDave@aol.com
Subject: Re: [pct-l] Oregon B&B Fires: Struck by Lightning
To: pct-l@backcountry.net
Message-ID: <2d.355fc09c.2cc0dd67@aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 10/16/03 8:08:17 PM, hiker@godlikebuthumble.com writes:
<< How in the world do you turn a forest service finding like this into a
political statement? >>
Well, lets throw a little religion into it, too! Maybe those fires were
started by a "Burning Bush"
------------------------------
Message: 15
Date: Thu, 16 Oct 2003 23:06:21 -0700
From: Hiker <hiker@godlikebuthumble.com>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID: <4.3.2.7.2.20031016225723.040eb740@fastpack.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 10:49 PM 10/16/03, Gray wrote:
>Um, I'd be really interested in hearing where you heard about these, simply
>because the amount of fissionable materiel needed is way more than anyone
>that thruhikes would be willing to carry.
The soviets had some radioisotope thermoelectric generators (RTG) which are
sometimes called "nuclear batteries" though there is no fission, just heat
from nuclear decay. They used them in some spy satellites, which caused
some concern due to re-entry. They also used them to power lighthouses in
the artic.
The USA used them too, but in deep space applications like Voyager, where
solar panels wouldn't work.
Not good for backpacking. Too heavy, and too "hot" to handle.
------------------------------
Message: 16
Date: Fri, 17 Oct 2003 02:08:01 EDT
From: CMountainDave@aol.com
Subject: Re: [pct-l] ultralight solar cells
To: pct-l@mailman.backcountry.net
Message-ID: <102.378bdedd.2cc0e141@aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 10/16/03 10:50:03 PM, gray_hiker@mindpoison.org writes:
<< Um, I'd be really interested in hearing where you heard about these,
simply
because the amount of fissionable materiel needed is way more than anyone
that thruhikes would be willing to carry.
>>
Cold fusion must be alive and well! If you glow in the dark, you can
eliminate the weight of a flashlight. My fission material includes a rod,
reel and
lures
------------------------------
Message: 17
Date: Fri, 17 Oct 2003 00:45:06 -0700 (PDT)
From: Ilja Friedel <ilja@cs.caltech.edu>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID:
<Pine.LNX.4.33L0.0310170040360.1270-100000@orchestra.cs.caltech.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII
Hi Gray,
On Thu, 16 Oct 2003, Gray wrote:
> > I've read the Soviets had tiny nuclear
> > batteries. Not sure if you can get them in the US...
>
> Um, I'd be really interested in hearing where you heard about these,
simply
> because the amount of fissionable materiel needed is way more than anyone
> that thruhikes would be willing to carry.
I've read a little book describing alternative energy technologies from
the 60's and 70's. I remember it also described a russian pacemaker
battery using plutonium. If it is good enough to be implanted permanently,
a thruhiker could easily carry it.
I searched for a reference and found:
http://www.vanderbilt.edu/radsafe/9603/msg00117.html
Apparently such pacemaker batteries where used in the USA too. Not on the
market anymore though.
Ilja.
------------------------------
Message: 18
Date: Fri, 17 Oct 2003 03:31:11 -0700
From: "Gray" <gray_hiker@mindpoison.org>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID: <02fa01c39499$c940a530$2a23e40c@galen>
Content-Type: text/plain; charset="iso-8859-1"
> Hi Gray,
>
> On Thu, 16 Oct 2003, Gray wrote:
>
> > > I've read the Soviets had tiny nuclear
> > > batteries. Not sure if you can get them in the US...
> >
> > Um, I'd be really interested in hearing where you heard about these,
simply
> > because the amount of fissionable materiel needed is way more than
anyone
> > that thruhikes would be willing to carry.
>
> I've read a little book describing alternative energy technologies from
> the 60's and 70's. I remember it also described a russian pacemaker
> battery using plutonium. If it is good enough to be implanted permanently,
> a thruhiker could easily carry it.
>
> I searched for a reference and found:
> http://www.vanderbilt.edu/radsafe/9603/msg00117.html
> Apparently such pacemaker batteries where used in the USA too. Not on the
> market anymore though.
While these are interesting, it's not really a nuclear battery. No fission
or fusion = not nuclear.
Pacemakers require a very low current drain, and I would hazard to guess
that even if these batteries were fine for pacemakers, that they wouldn't be
able to do much besides low-current-drain uses. A standard Lithium Ion
battery would likely out perform it, and be a lot less scary to handle.
Gray
------------------------------
Message: 19
Date: Fri, 17 Oct 2003 09:12:08 -0500
From: "Steve Jackson" <sjackson@stratmarkgroup.com>
Subject: RE: [pct-l] ultralight solar cells[Scanned]
To: <pct-l@mailman.backcountry.net>
Message-ID:
<C344AEAA82D0E1499ECEC9E8BE54822641AF43@pony.collins.stmk.com>
Content-Type: text/plain; charset="US-ASCII"
"...batteries where used in the USA too. Not on the market anymore
though."
Ilja.
Hmmm...wonder why batteries containing Pu-238 aren't available for
purchase? Haha.
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unsubscribe or change options:
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------------------------------
Message: 20
Date: Fri, 17 Oct 2003 08:50:15 -0600
From: Edmond Meinfelder <edmond@mydogmeg.net>
Subject: Re: [pct-l] ultralight solar cells
To: <pct-l@mailman.backcountry.net>
Message-ID: <5.2.1.1.0.20031017084252.01511f80@mail.mydogmeg.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 10:49 PM 10/16/2003 -0700, Gray wrote:
>Um, I'd be really interested in hearing where you heard about [nuclear
>batteries], simply because the amount of fissionable materiel needed is
>way more than anyone
>that thruhikes would be willing to carry.
The power provided by nuclear batters is proportional to the half-life of
the isotope. Radioisotopes with long half-lives have long battery lives,
but provide low power. Nuclear batteries have been used in satellites and
pacemakers for a while. (Two applications requiring light-weight, small
footprint and low power fuel sources, like hiking.)
I have enough guilt disposing of dead AAA alkaline batteries in towns not
having safe disposal for traditional batteries. I can't imagine what I'd do
with radioactive isotopes in Sierra City or Ollalie Lake.
Here's a link if you want to learn more:
http://www.cae.wisc.edu/~blanchar/res/batteries.htm
Tangent
------------------------------
Message: 21
Date: Fri, 17 Oct 2003 08:02:49 -0700 (PDT)
From: Linda Jagger <lindajagger@yahoo.com>
Subject: [pct-l] Hike partner on 11/8 to do first 20 mi from Mex
Border
To: pct-l@mailman.backcountry.net
Message-ID: <20031017150249.92007.qmail@web11003.mail.yahoo.com>
Content-Type: text/plain; charset=us-ascii
Hello, Im going to be in LA area, and want to hike the first 20 mi of PCT
from Mexican border to Lake Moreno in a day. Im available to do it sat, sun
or mon, 11/8, 9. 10. Or if no one is available to hike w/me is there anyone
who could provide me shuttle assistance. I would prefer to park my car at
Lake Moreno and get a ride to the border, then I would hike back to my car.
As a woman and having never hiked the area I would feel safer having a
partner due to possible interactions w/"illegals" . Is it best to hike
north, leaving a car at Lake Moreno, rather than hike south bound??
If I do not get shuttle assistance, is it even possible to safely park a car
by the border and hike out say 10 mi, and back to the car in a day. Please
reply to me directly at lindajagger@yahoo.com
------------------------------
Message: 22
Date: Fri, 17 Oct 2003 11:22:50 EDT
From: CMountainDave@aol.com
Subject: Re: [pct-l] ultralight solar cells
To: pct-l@mailman.backcountry.net
Message-ID: <1d5.12a10ddc.2cc1634a@aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 10/17/03 12:45:17 AM, ilja@cs.caltech.edu writes:
<< I remember it also described a russian pacemaker
battery using plutonium. If it is good enough to be implanted permanently,
a thruhiker could easily carry it.
>>
My dad worked with plutonium. It is nasty, insidious stuff. It puts out
Alpha
particles that cannot even penetrate a sheet of paper. So when you ingest
it,
your skin blocks the Alpha particles, making it very difficult to prove you
have ingested it, but you will certainly die from radiation induced cancer
if
you do.
So what happens if these batteries get lost or are thrown away? They
eventually deteriorate and enter the food chain: into grass via osmosis,
deer eat
the grass, bears/eagles, etc., eat the deer carcass. Imagine the general
public
with such batteries. It will never happen
OOPs wrong mailing list. Thought this was the Plutonium Challenges for
Tomorrow chat list
------------------------------
Message: 23
Date: Fri, 17 Oct 2003 12:15:02 EDT
From: Bighummel@aol.com
Subject: [pct-l] PCTA Position Openning - Trail Operations Manager
To: pct-l@backcountry.net
Message-ID: <7a.49b7bc29.2cc16f86@aol.com>
Content-Type: text/plain; charset="US-ASCII"
The PCTA has a job openning for a Trails Operations Manager. Info can be
found on the PCTA website; <A HREF="www.pcta.org">www.pcta.org</A> and a
detailed job description will be
posted their shortly.
Monte?
Greg
------------------------------
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End of pct-l Digest, Vol 6, Issue 18
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