sci.electronics.repair - 23 new messages in 10 topics - digest

sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en

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Today's topics:

==============================================================================
TOPIC: molybdenite
http://groups.google.com/group/sci.electronics.repair/t/244108de65abc50e?hl=en
==============================================================================

== 1 of 2 ==
Date: Wed, Feb 2 2011 6:04 pm
From: bob urz

http://www.edn.com/article/512552-Molybdenite_touted_as_material_to_revolutionize_electronics_.php

bob

== 2 of 2 ==
Date: Thurs, Feb 3 2011 10:16 am
From: JeffM

bob urz wrote:
>http://www.edn.com/article/512552-Molybdenite_touted_as_material_to_revolutionize_electronics_.php
>
An item I saw questions the veracity of this
and says that the process used to get semiconductors to high purity
won't work with this stuff (molybdenum disulfide).
http://slashdot.org/comments.pl?threshold=5&mode=threaded&sid=1973302&cid=35053556#35054082

==============================================================================
TOPIC: N222 partial compliance
http://groups.google.com/group/sci.electronics.repair/t/cd75bbbb3c528e80?hl=en
==============================================================================

== 1 of 2 ==
Date: Thurs, Feb 3 2011 12:37 am
From: "N_Cook"

Along the way I found this useful assemblage of those mysterious compliance
symbols and info, shame about the Cinglaise
http://www.btc-lab.com/en/images/s2.jpg

== 2 of 2 ==
Date: Thurs, Feb 3 2011 12:47 am
From: "N_Cook"

and
http://www.btc-lab.com/en/images/s2.jpg
http://www.btc-lab.com/en/service7.asp

==============================================================================
TOPIC: Mitsubishi Diamond Plus 200 insufficient blue
http://groups.google.com/group/sci.electronics.repair/t/539a9aa244a2d23f?hl=en
==============================================================================

== 1 of 2 ==
Date: Thurs, Feb 3 2011 12:49 am
From: "N_Cook"

<kpgpbhdw@kpgpbhdw.com> wrote in message
news:iicrn7$is5$1@news.eternal-september.org...
> I just got an old 22" Mitsubishi Diamond Plus 200 CRT monitor.
> The previous owner said that the picture was "greenish".
> He didn't say anything else about it.
>
> The problem is that the blue color is about one tenth as bright as it
> sould be, which means the colors look greenish-browning, unless I set
> the red and green gains down to where I can barely see the image in a
> normally lit room.
>
> Of course, I tried to set the blue gain to the max setting, but it is
> still one tenth as bright as it should be, by my estimation.
>
> I opened the unit up and looked inside. It is fairly free of dust.
> The parts of it that I could see without taking it completely apart
> didn't show any visible defects such as burned parts, loose connectors,
> broken wires, scorch marks, et cetera.
>
> Aside from the dim blues, the unit works just fine, and I would like to
> take a shot at fixing it.
>
> Does anyone have any suggestions for what I should check first, second,
> third, and so on?
>
> Thanks to all of you.
>
> Graviton.

Try swapping red and blue drive lines. Isolates to the final or earlier
stages

== 2 of 2 ==
Date: Thurs, Feb 3 2011 9:26 am
From: kpgpbhdw@kpgpbhdw.com

On Thu, 3 Feb 2011 08:49:51 -0000, N_Cook <diverse@tcp.co.uk> wrote:
><kpgpbhdw@kpgpbhdw.com> wrote in message
> news:iicrn7$is5$1@news.eternal-september.org...
>> I just got an old 22" Mitsubishi Diamond Plus 200 CRT monitor.
>> The previous owner said that the picture was "greenish".
>> He didn't say anything else about it.
>>
>> The problem is that the blue color is about one tenth as bright as it
>> sould be, which means the colors look greenish-browning, unless I set
>> the red and green gains down to where I can barely see the image in a
>> normally lit room.
>>
>> Of course, I tried to set the blue gain to the max setting, but it is
>> still one tenth as bright as it should be, by my estimation.
>>
>> I opened the unit up and looked inside. It is fairly free of dust.
>> The parts of it that I could see without taking it completely apart
>> didn't show any visible defects such as burned parts, loose connectors,
>> broken wires, scorch marks, et cetera.
>>
>> Aside from the dim blues, the unit works just fine, and I would like to
>> take a shot at fixing it.
>>
>> Does anyone have any suggestions for what I should check first, second,
>> third, and so on?
>>
>> Thanks to all of you.
>>
>> Graviton.
>
>
> Try swapping red and blue drive lines. Isolates to the final or earlier
> stages

I'm not a professional, just an experience amateur, so my tools and
skills are limited. Could you provide more details on this procedure?

Thnx.

==============================================================================
TOPIC: HOT ACTRESS WITH SEXY PHOTOS & VIDEOS
http://groups.google.com/group/sci.electronics.repair/t/3250ef0928afac72?hl=en
==============================================================================

== 1 of 2 ==
Date: Thurs, Feb 3 2011 3:39 am
From: SRAVANTHI LOVE

== 2 of 2 ==
Date: Thurs, Feb 3 2011 5:34 am
From: SRAVANTHI LOVE

==============================================================================
TOPIC: Datron 4000 error code 2
http://groups.google.com/group/sci.electronics.repair/t/421ba8686a4cd870?hl=en
==============================================================================

== 1 of 2 ==
Date: Thurs, Feb 3 2011 5:45 am
From: JW

Anyone have a copy of a Datron 4000 calibrator manual? Looking for the
description of "error code 2".

Thanks.

== 2 of 2 ==
Date: Thurs, Feb 3 2011 11:45 am
From: DarkwaterBlight

On Feb 3, 8:45 am, JW <n...@dev.null> wrote:
> Anyone have a copy of a Datron 4000 calibrator manual? Looking for the
> description of "error code 2".
>
> Thanks.

Thats a pretty old peice of equipment but there may be a manual around
in some military cal. lab. I'll call some friends and get back to you.

==============================================================================
TOPIC: motherboard pwr_on pins resistance?
http://groups.google.com/group/sci.electronics.repair/t/65d60dc1b24d5107?hl=en
==============================================================================

== 1 of 5 ==
Date: Thurs, Feb 3 2011 7:20 am
From: "John Keiser"

On closer inspection, I do see a bulging cap near the cmos. Runs very hot
to touch so highly suspect.
Not sure if I can replace.

"Paul" <nospam@needed.com> wrote in message
news:iic806$kqd$1@news.eternal-september.org...
> John Keiser wrote:
>> Same result when booting to a CD: power light comes on but process
>> proceeds no further. Not a HD issue.
>>
>> To clarify, the PC is set to awake from fully off using the RTC alarm,
>> not suspend or hibernate. This worked until a few weeks ago.
>>
>
> Have you added any hardware recently ? Like any USB devices ?
> A USB card reader ?
>
> A computer which crashes, before the BIOS can run any significant
> number of instructions, won't beep (the computer speaker) at all.
> The implication would be, that the default startup conditions
> are no longer sufficient to allow the processor to start the
> bootstrap process.
>
> Some computers, they do a "double start" at startup. The BSEL
> (bus select pins on the processor) request a particular FSB
> setting (for processors that still have an FSB). The BIOS starts
> to run, using nominal processor voltage and frequency. If the
> motherboard is an enthusiast type, the BIOS can then set up
> things according to any BIOS modifications and start the system
> again. After this, you'd hear the single beep, which tells you
> the machine has finished POST, and is about to start the OS boot
> sequence.
>
> If you're missing the single beep, and you're not getting an
> error beep pattern, then the system is getting stuck early
> on. Maybe not even one BIOS instruction has run in your case.
>
> There is a second kind of failure for your situation, namely
> the video display shows, but there is a flashing cursor in the
> upper left hand corner. But if you had video, you probably would
> have reported that here. ("Stuck with flashing cursor").
>
> There are some simple things that can stop a board from
> starting. The Power_Good signal coming from the power supply,
> is a gating term in the reset chain. If the power supply
> signaled that it wasn't at full voltage, by keeping Power_Good
> de-asserted, that prevents the BIOS from booting. It's the
> equivalent of pressing and holding the front panel reset button.
> But since your system starts, after you've reset it, the problem
> is not likely to be a power supply withholding Power_Good.
>
> The motherboard adds terms to the Power_Good chain. Additional
> status bits, can come from the onboard regulators. If an onboard
> regulator withholds its own version of Power_Good, that stops
> the startup process as well.
>
> About all you can do at this point, is attempt a "clear CMOS" using
> the Clear_RTC jumper. You do that with the power OFF and the computer
> unplugged. The reason for that warning, is some older motherboards
> will be damaged, if you use Clear_RTC while *any* power is present.
> Usually, the user manual for the motherboard, warns about doing
> a Clear CMOS with the system still powered. The purpose of
> doing the Clear CMOS, followed by restoring all the BIOS settings
> manually, is on the theory that some "phantom bit" in the 256 byte
> CMOS RAM area, is causing the mis-programming of the motherboard
> early in the BIOS startup/bootstrap sequence.
>
> Other than that, its a good question as to what other persistent
> storage on the motherboard, is remembering something it shouldn't.
>
> Motherboards have "backfeed cut" circuits, intended to prevent
> power from flowing in the wrong places, in the various shut off
> states the motherboard can have. Such circuits can be fooled,
> and not know the computer has been turned on, and then they prevent
> the proper operation of the computer. (In one case, this was caused
> by leakage current coming down the monitor cable - the computer would
> start, if the user unplugged the monitor cable.) Backfeed circuit design
> is kinda adhoc, so you're relying on the skills of the individual
> motherboard designer, as to how well it works. Some aspects
> of computer design are rather automated, or have design discipline
> that ensures a high probability of success. But any time a designer
> fiddles with analog power issues, there is room for error to crop
> in, and the result is flaky behavior at startup. In some
> cases, the behavior can even be temperature sensitive ("my
> computer won't start, when the room is cold"). And for
> all of those kinds of problems, I've got no answer. The
> issue is complicated enough, that even with a schematic,
> I'd be hard pressed to trace all those paths with a multimeter,
> and determine what was going on.
>
> Paul

== 2 of 5 ==
Date: Thurs, Feb 3 2011 7:36 am
From: "William Sommerwerck"

> On closer inspection, I do see a bulging cap near the
> CMOS. Runs very hot to the touch, so highly suspect.
> Not sure if I can replace.

Surround the area with absorbent material, then crush the capacitor. You
shold be able to tack-solder a replacement to the protruding leads.

== 3 of 5 ==
Date: Thurs, Feb 3 2011 9:40 am
From: "John Keiser"

I have practiced removing caps on old MB's and I find it not so easy.
I like this idea a lot and will give it a try.
Thanks for the suggestion.

"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
news:iiei3d$dq7$1@news.eternal-september.org...
>> On closer inspection, I do see a bulging cap near the
>> CMOS. Runs very hot to the touch, so highly suspect.
>> Not sure if I can replace.
>
> Surround the area with absorbent material, then crush the capacitor. You
> shold be able to tack-solder a replacement to the protruding leads.
>
>

== 4 of 5 ==
Date: Thurs, Feb 3 2011 12:59 pm
From: Baron

John Keiser Inscribed thus:

> I have practiced removing caps on old MB's and I find it not so easy.
> I like this idea a lot and will give it a try.
> Thanks for the suggestion.
>

Shush don't tell anyone, the secret is to preheat that area of the
board before you use the solder sucker... ;-)

Having said that some boards have so little clearance in the hole around
the pins that the crushing trick is the only way to free the pin so
that it will come out when heated from the underside, with the
soldering iron.

--
Best Regards:
Baron.

== 5 of 5 ==
Date: Thurs, Feb 3 2011 3:28 pm
From: "John Keiser"

I modified the "crush" method: I snipped a test cap in half with wire
snips. The bottom half then pulls right off the internal connectors,
leaving two nice pegs for a tack solder.
Access could be an issue for this method, but very easy if there is room.

"Baron" <baron.nospam@linuxmaniac.nospam.net> wrote in message
news:iif4rn$7p5$1@news.eternal-september.org...
> John Keiser Inscribed thus:
>
>> I have practiced removing caps on old MB's and I find it not so easy.
>> I like this idea a lot and will give it a try.
>> Thanks for the suggestion.
>>
>
> Shush don't tell anyone, the secret is to preheat that area of the
> board before you use the solder sucker... ;-)
>
> Having said that some boards have so little clearance in the hole around
> the pins that the crushing trick is the only way to free the pin so
> that it will come out when heated from the underside, with the
> soldering iron.
>
> --
> Best Regards:
> Baron.

==============================================================================
TOPIC: Laptop not charging.
http://groups.google.com/group/sci.electronics.repair/t/3f52116e8141f1a4?hl=en
==============================================================================

== 1 of 2 ==
Date: Thurs, Feb 3 2011 12:51 pm
From: Baron

Hi Tim,
T i m Inscribed thus:

> Update:
>
> A replacement primary battery came today for daughters Latitude D520
> and when I fitted it the BIOS Battery Info screen when from 'not
> installed' (empty bay or with the old battery fitted) to 'Discharging'
> with the new battery so that was something. ;-)

Sounds like the protection circuits in the battery killed the feed to
charge it. If you decide to investigate you will probably find that
one or more cells has died.

> Then I found a faulty 90W Dell adaptor I had kicking about and when I
> powered it up it made a noise like it was trying but didn't light the
> LED nor put any voltage on the output plug. With both daughters and
> this charger disconnected from the mains and after insuring there was
> no output voltage I measured the output resistance on both and found
> the 'dead' one to be shorted (good one about 200 ohms).

That sounds right for a good adaptor.

> With nothing to lose I carefully cut it open the duff adaptor and
> after a bit of experimenting concluded the short was in the cable as
> it exits the power brick. With a decent iron and de soldering pump I
> removed the iffy output lead, trimmed it a few inches shorter and re
> heat-shrunk and connected the cables. I put it back in it's case,
> taped it up and powered it up, LED on and 19V on the output. ;-)

Sounds good ! I bet you've done this before... ;-)

> Plugged it into the D520, "AC Adaptor = 90W' and the primary battery
> status changed to 'Charging'. ;-)
>
> So the D520 looked like it had two faults, a dead primary battery and
> faulty ID function (I'll check that one out tomorrow). It also seems
> the modular bay battery isn't so fussy about the PSU and has been
> charging and working ok.

Yea, a result !

> We then tried the same 'test' PSU in daughters b/fs not-charging
> Inspiron 1545 and it also now detects the charger but didn't seem to
> want to start to charge. He says the battery had about 2hrs life
> before it stopped charging. A mate has a 1545 so we will try his
> battery in this one before doing anything further.
>
> I'll provide another update as / when we know anything on that.

Thanks for this update ! Its nice to know.

> As the round plug from the D520 adaptor fits the octagonal socket on
> the 1545 I may get a pair of genuine Dell 90W adaptors with round
> plugs as they can both use either.
>
> Thanks again to all those who have offered help / feedback on this so
> far.
>
> Cheers, T i m

--
Best Regards:
Baron.

== 2 of 2 ==
Date: Thurs, Feb 3 2011 4:09 pm
From: T i m

On Thu, 03 Feb 2011 20:51:06 +0000, Baron
<baron.nospam@linuxmaniac.nospam.net> wrote:

>> A replacement primary battery came today for daughters Latitude D520
>> and when I fitted it the BIOS Battery Info screen when from 'not
>> installed' (empty bay or with the old battery fitted) to 'Discharging'
>> with the new battery so that was something. ;-)
>
>Sounds like the protection circuits in the battery killed the feed to
>charge it. If you decide to investigate you will probably find that
>one or more cells has died.

OK, now we are back online with a new battery I may well have a closer
look. I understand it wasn't lasting very long before it failed but
the presence of the modular battery masked it a bit.
>
<snip>
>> I put it back in it's case,
>> taped it up and powered it up, LED on and 19V on the output. ;-)
>
>Sounds good ! I bet you've done this before... ;-)

Indeed, with all sorts of stuff (I feel if it's already 'broken' you
have little to lose). I have always got more fun out of fixing
something then using it than just going out and buying it / a new one.
<Mutter> years ago I designed, built and ran my own mobile disco (for
my own pleasure really <g>). 1.5kw 3 way stereo PA, console with
mixer, 8 channel light sequencer (before you could easily buy such
things), strobe and all the speaker cabs etc. I drove it about in a
Morris Minor van that I bought for £25 and put another gearbox in at
the car park where I bought it before I could drive it home. ;-) [1]
>
>> Plugged it into the D520, "AC Adaptor = 90W' and the primary battery
>> status changed to 'Charging'. ;-)
>>
>> So the D520 looked like it had two faults, a dead primary battery and
>> faulty ID function (I'll check that one out tomorrow). It also seems
>> the modular bay battery isn't so fussy about the PSU and has been
>> charging and working ok.
>
>Yea, a result !

A result indeed <g>. She likes the D520 and was happy to carry on with
it even as it was. We /could/ get her something else but this laptop
does have a nice substantial feel to it so we are all happy it's fully
working again. [2] The replacement battery ran for 3 hours this
morning and the modular battery is at least 80% good.
>
>> We then tried the same 'test' PSU in daughters b/fs not-charging
>> Inspiron 1545 and it also now detects the charger but didn't seem to
>> want to start to charge. He says the battery had about 2hrs life
>> before it stopped charging. A mate has a 1545 so we will try his
>> battery in this one before doing anything further.
>>
>> I'll provide another update as / when we know anything on that.
>
>Thanks for this update ! Its nice to know.

My pleasure. So, we took his laptop to my mates PC show and were lucky
to have the chance to try all different combinations of laptop,
battery and charger.

The first smile was to see a known good battery and charger in his
lappy charging AOk (so all the charging circuitry was ok <phew>). The
second was later back at home when my multifunction charger arrived
from eBay and was 'seen' by the Dells as a 90W adaptor. The cherry on
the cake was when he left the Targus connected and after about an hour
mentioned that his presumed 'dead' battery was now showing 14% charge.
Left it slowly rose to 100% and he's currently running it down and has
run about 40 mins with 20 left.
>
I' thin opened the original chargers for both machines and both had
broken data wires at the plug end. I have 3 on their way at a fiver
each and if they work they will be cheap genuine chargers. ;-)

I found this very interesting on Youtube (very well put together as
well):

http://preview.tinyurl.com/5r8rl79

We picked up a clone Dell charger that seems to advertise it's a 150W
device (it isn't, it's a 90W). Maybe someone found a batch of unwanted
chips or thought that responding with '150W' would make more kit
happy?

Cheers, T i m

[1] My most recent challenge was a 13 month old Zanussi washing
machine I picked up on Freecycle. It had been written off by the
insurance Co with failed bearings as not being economical to repair
because the drum was in a /sealed/ plastic tub. I was also told by all
the whitegoods gurus that it was a lost cause but it's still running
very well some 18 months later. <weg>

[2] The screen feels a bit floppy on the hinges so I'd like to check
that out and I'm going to fit a new power socket before she takes it
back up to Scotland (400 miles away).

==============================================================================
TOPIC: Eco - windmills ... (bit OT)
http://groups.google.com/group/sci.electronics.repair/t/a12dc199597830ae?hl=en
==============================================================================

== 1 of 4 ==
Date: Thurs, Feb 3 2011 6:20 pm
From: "Arfa Daily"

A few weeks ago, there was a professor talking on a UK radio show, about the
eco-credentials of the windmills that are springing up all over the UK in an
effort to satisfy the goals for renewable power, that have been foisted on
us by Brussels. He enthused like an evangelical preacher about the brilliant
efficiency of these machines which, he said, was due in no small part to the
use of neodymium magnets in the generators. I understand that high power
neodymium magnets are also used in the motors for electric eco-cars. Fair
enough all round. However, in last Sunday's newspaper supplement, I read a
rather disturbing story about this material. Apparently, almost all 'rare
earth' metals are mined and processed in China. Since the boom in wind
turbines and electric cars started, the demand for neodymium has gone sky
high. The only problem is that extracting it from the ground and other
metals that it co-exists with, involves the use of very concentrated acids
which are pumped into the ground, as well as being used in the refinement
process. There is also radioactivity involved somewhere in the process. Once
the neodymium has been extracted and processed, the highly acidic and
radioactive 'tailings' are dumped in a huge and highly toxic lake that is
now over 10 feet deep. Local people are getting sick and dying at an
alarming rate, and birth defects are common. The water supply and crops are
being poisoned, and the whole affair is being talked of in terms of an
"ecological disaster".

So here we have another bit of western eco- think of dubious practicality in
terms of the amount of power that can actually be realistically produced
this way, that's having a seriously negative ecological effect on the other
side of the world. But I suppose all the eco-warriors and euro pen-pushers
that support this 'non-polluting' power generation technology, would rather
that we didn't know about the wider implications ...

http://www.dailymail.co.uk/home/moslive/article-1350811/In-China-true-cost-Britains-clean-green-wind-power-experiment-Pollution-disastrous-scale.html

Arfa

== 2 of 4 ==
Date: Thurs, Feb 3 2011 7:27 pm
From: "Michael Kennedy"

"Arfa Daily" <arfa.daily@ntlworld.com> wrote in message
news:ynJ2p.36406$837.20584@newsfe19.ams2...
>A few weeks ago, there was a professor talking on a UK radio show, about
>the eco-credentials of the windmills that are springing up all over the UK
>in an effort to satisfy the goals for renewable power, that have been
>foisted on us by Brussels. He enthused like an evangelical preacher about
>the brilliant efficiency of these machines which, he said, was due in no
>small part to the use of neodymium magnets in the generators. I understand
>that high power neodymium magnets are also used in the motors for electric
>eco-cars. Fair enough all round. However, in last Sunday's newspaper
>supplement, I read a rather disturbing story about this material.
>Apparently, almost all 'rare earth' metals are mined and processed in
>China. Since the boom in wind turbines and electric cars started, the
>demand for neodymium has gone sky high. The only problem is that extracting
>it from the ground and other metals that it co-exists with, involves the
>use of very concentrated acids which are pumped into the ground, as well as
>being used in the refinement process. There is also radioactivity involved
>somewhere in the process. Once the neodymium has been extracted and
>processed, the highly acidic and radioactive 'tailings' are dumped in a
>huge and highly toxic lake that is now over 10 feet deep. Local people are
>getting sick and dying at an alarming rate, and birth defects are common.
>The water supply and crops are being poisoned, and the whole affair is
>being talked of in terms of an "ecological disaster".
>
> So here we have another bit of western eco- think of dubious practicality
> in terms of the amount of power that can actually be realistically
> produced this way, that's having a seriously negative ecological effect on
> the other side of the world. But I suppose all the eco-warriors and euro
> pen-pushers that support this 'non-polluting' power generation technology,
> would rather that we didn't know about the wider implications ...
>
> http://www.dailymail.co.uk/home/moslive/article-1350811/In-China-true-cost-Britains-clean-green-wind-power-experiment-Pollution-disastrous-scale.html
>
> Arfa

Whats that old saying.. Theres no such thing as a free lunch..I think this
applies to enery too.. Theres no such thing as (poloution) free energy.

I don't know what the answer is to the energy problmes we face, but wind
power isn't the answer. Solar isn't so promising either.

Mike

== 3 of 4 ==
Date: Thurs, Feb 3 2011 10:09 pm
From: Jeff Liebermann

On Fri, 4 Feb 2011 02:20:13 -0000, "Arfa Daily"
<arfa.daily@ntlworld.com> wrote:

>Apparently, almost all 'rare
>earth' metals are mined and processed in China. Since the boom in wind
>turbines and electric cars started, the demand for neodymium has gone sky
>high. The only problem is that extracting it from the ground and other
>metals that it co-exists with, involves the use of very concentrated acids
>which are pumped into the ground, as well as being used in the refinement
>process.

China seems to be making its own problems:

"Concern as China clamps down on rare earth exports"
<http://www.independent.co.uk/news/world/asia/concern-as-china-clamps-down-on-rare-earth-exports-1855387.html>
The article is about a year old, but the situation hasn't changed
much. Allegedly, it's because China wants to control the mining
pollution:
<http://resourceinvestingnews.com/11967-the-future-of-critical-metals.html>

In the US, the congress critters are worried and are pushing for a
renewal of domestic production (which was curtailed due to
environmental concerns).
<http://rareearthinvestingnews.com/934/neodymium%E2%80%99s-strategic-importance-gets-traction-with-us-congress/>

Incidentally, the radioactivity is from the other minerals mixed in
with the Neodymium, and not in anything used during processing.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

== 4 of 4 ==
Date: Fri, Feb 4 2011 12:36 am
From: "N_Cook"

Arfa Daily <arfa.daily@ntlworld.com> wrote in message
news:ynJ2p.36406$837.20584@newsfe19.ams2...
> A few weeks ago, there was a professor talking on a UK radio show, about
the
> eco-credentials of the windmills that are springing up all over the UK in
an
> effort to satisfy the goals for renewable power, that have been foisted on
> us by Brussels. He enthused like an evangelical preacher about the
brilliant
> efficiency of these machines which, he said, was due in no small part to
the
> use of neodymium magnets in the generators. I understand that high power
> neodymium magnets are also used in the motors for electric eco-cars. Fair
> enough all round. However, in last Sunday's newspaper supplement, I read a
> rather disturbing story about this material. Apparently, almost all 'rare
> earth' metals are mined and processed in China. Since the boom in wind
> turbines and electric cars started, the demand for neodymium has gone sky
> high. The only problem is that extracting it from the ground and other
> metals that it co-exists with, involves the use of very concentrated acids
> which are pumped into the ground, as well as being used in the refinement
> process. There is also radioactivity involved somewhere in the process.
Once
> the neodymium has been extracted and processed, the highly acidic and
> radioactive 'tailings' are dumped in a huge and highly toxic lake that is
> now over 10 feet deep. Local people are getting sick and dying at an
> alarming rate, and birth defects are common. The water supply and crops
are
> being poisoned, and the whole affair is being talked of in terms of an
> "ecological disaster".
>
> So here we have another bit of western eco- think of dubious practicality
in
> terms of the amount of power that can actually be realistically produced
> this way, that's having a seriously negative ecological effect on the
other
> side of the world. But I suppose all the eco-warriors and euro pen-pushers
> that support this 'non-polluting' power generation technology, would
rather
> that we didn't know about the wider implications ...
>
>
http://www.dailymail.co.uk/home/moslive/article-1350811/In-China-true-cost-B
ritains-clean-green-wind-power-experiment-Pollution-disastrous-scale.html
>
> Arfa
>

The central African tantalum mines pay for the local wars.

I've never understood why there is not a prop shaft the length of those
towers and then any old (heavy) generator at ground/sea level.

The talk, next week, for the sci caf I run
http://www.divdev.fsnet.co.uk/scicaf.htm
is on nuclear fusion , with someone from the Culham labs, I wonder how
eco-unfriendly that would be if it ever gets going - I doubt it would be
"too cheap to meter"

==============================================================================
TOPIC: Buy Valentine's Day Special Perfumes
http://groups.google.com/group/sci.electronics.repair/t/40926335d80be820?hl=en
==============================================================================

== 1 of 1 ==
Date: Thurs, Feb 3 2011 9:36 pm
From: latestnews

http://www.kobeperfume.com/ -- Valentine's Day is fast approaching
and Love is in the air, as well as the aroma of the many perfumes that
will be bought for loved ones.

==============================================================================
TOPIC: Earn 500 Dollars Per Month Without Doing Any Work
http://groups.google.com/group/sci.electronics.repair/t/670b27b1f726a0a1?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Feb 4 2011 12:48 am
From: ali kaseri

NOTE : This Is Not A Referring Type Program / MLM / Joining People
Scheme / Network Marketing.

For More Information About Club Asteria Click Here www.club-asteria-earn.blogspot.com

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revenue generated here are Real and this is NO PONZI Scheme, and run
by extremely qualified Andrea Lucas who has more than 30 years of
combined experience.

What are Asterios?
Asterias are nothing but points which we all accrue by different means
and more the asterias we have more the share in profit sharing.

How can one earn from Club Asteria?
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for Gold membership of $20 a month and remain with Club Asteria over
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Here you start with $20 a month and every month you get 20 Asterios
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This way on after 19th month you shall start making up to $400 per
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Revenue Sharing is capped at 10% a week and it may vary and there is
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You Will Get the idea of the Club-Asteria if you go through the
Monthly Earnings Chart. To get the idea How Club-Asteria Works CLICK
HERE http://club-asteria-earn.blogspot.com/p/monthly-earning-chart.html

How can we earn from Club Asteria(CA)?
There are three ways here:
1. Every week on Thursday, profits made in entire Club Asteria is
distributed to the members and more asterios one has more the profit
sharing he gets.

2. By way of referring, you can join either as
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$225 each and every month besides Profit sharing every week.
Gold ($20 monthly), if you refer any silver member you get $4.5 per
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members under you, you make $450 each and every month besides profit
sharing every week
3. Also whenever any of your direct referral purchases asterios, you
get 10% as cash bonus which you can reinvest or withdraw.

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