magnetic field

Watson A.Name - \"Watt Su · Sep 29, 2004

"Paul Guy" <mpaulmguym@meastlinkm.ca> wrote in message
news:68vkb0tj8eti0u4pp82vse6tk5s39c7jkg@4ax.com...

[snip]

He might need a second person to substitute when he got tired.
In a remote area, this would power transcievers, TV's, cell phone
chargers and other 'useful' devices, and would be far faster and far
cheaper than solar cells.

I was watching the TV today and they showed three ways to put an
emergency charge into your cellphone when it runs low. Two were
batteries, but the third was a hand cranked charger, cute little thing
called a Sidewinder. All were between $10 and $25, I don't know what
they cost individually.

It is definitely "do-able", fairly easy to make, and performs well.
Make sure that a decent 12 volt fan is used to cool the cyclist, along
with copious amounts of water!

Some 'remote areas' don't have much water, and some don't have much food
either, both of which are important in this case.

> -Paul

AtPCLogic · Sep 29, 2004

What I can't understand is why the original poster would be giving prototype
units to people who could not be trusted?
Brad
PC Logic

Schematic entry and PCB design software
http://www.pclogic.biz
http://members.aol.com/atpclogic/index.html

Clifford Heath · Sep 29, 2004

Jim Thompson wrote:

http://www.analog-innovations.com/Musings/RedLightCamera.mpg

I've just shown this to the learner driver in this house.
The point being not "don't run red lights", but "don't assume
no-one else will, especially in the first couple of seconds
of the green." The SUV driver was far from blameless here.
They didn't just start off from the green! Trying to judge
the green so you can shoot through is almost as dangerous as
running reds, if you aren't ready to avoid someone who can't
or won't stop.

My neighbour was in the outer lane at a cross-road beside a
women in the inner lane when the light went green. He saw a
dump truck shooting down the hill that obviously wasn't going
to be able to stop, and frantically tried to attract the woman's
attention to stop her. Shedrove forward on the green and was
killed instantly in the collision, orphaning her three children.

Jim Thompson · Sep 29, 2004

On Thu, 15 Jul 2004 20:12:28 +1000, Clifford Heath
<no@spam.please.net> wrote:

Jim Thompson wrote:
http://www.analog-innovations.com/Musings/RedLightCamera.mpg

I've just shown this to the learner driver in this house.
The point being not "don't run red lights", but "don't assume
no-one else will, especially in the first couple of seconds
of the green."

Good advice, however....

The SUV driver was far from blameless here.
They didn't just start off from the green! Trying to judge
the green so you can shoot through is almost as dangerous as
running reds, if you aren't ready to avoid someone who can't
or won't stop.

The light had been red for 28 seconds, read the FrankW link:

http://www.snopes.com/photos/accident/carcrash01.asp

My neighbour was in the outer lane at a cross-road beside a
women in the inner lane when the light went green. He saw a
dump truck shooting down the hill that obviously wasn't going
to be able to stop, and frantically tried to attract the woman's
attention to stop her. She drove forward on the green and was
killed instantly in the collision, orphaning her three children.

480)460-2350 | |
| E-mail Address at Website Fax

John Larkin · Sep 29, 2004

On Thu, 15 Jul 2004 08:22:02 -0700, Jim Thompson
<thegreatone@example.com> wrote:

The light had been red for 28 seconds, read the FrankW link:

http://www.snopes.com/photos/accident/carcrash01.asp

Which sort of removes any excuse for the ped to be in the middle of
the street. It almost looks like the SUV would have hit him anyhow.

John

Jim Thompson · Sep 29, 2004

On Thu, 15 Jul 2004 09:48:17 -0700, John Larkin
<jjlarkin@highSNIPlandTHIStechPLEASEnology.com> wrote:

On Thu, 15 Jul 2004 08:22:02 -0700, Jim Thompson
thegreatone@example.com> wrote:

The light had been red for 28 seconds, read the FrankW link:

http://www.snopes.com/photos/accident/carcrash01.asp

Which sort of removes any excuse for the ped to be in the middle of
the street. It almost looks like the SUV would have hit him anyhow.

John

480)460-2350 | |
| E-mail Address at Website Fax

H. Dziardziel · Sep 29, 2004

On Thu, 15 Jul 2004 23:46:42 -0000, dplatt@radagast.org (Dave
Platt) wrote:

In article <cd73n7$7q7bd$1@hades.csu.net>,
Watson A.Name \"Watt Sun - the Dark Remover\" <alondra101@hotmail.com> wrote:

It seems thatt he only batteries the 99 cent stores carry are the
zinc-carbon types. Cheap, too, something like four for 99 cents.

Cheap carbon zinc (all made in China nowdays) invariably leak or

swell up -- used or not. They have very thin casing.

I'd sorta hoped that that would turn out to be the case... thanks!
I'll check out a few.

I've found a number of sites on the Internet which do sell the
heavy-duty carbon/zinc variety. One place has Eveready AA cells at
$0.15 (minimum order is 48).

Heavy duty carbon zinc have somwhat better capacity than the cheap

standard carbon zinc, and more importantly, are steel jacketed.

>I'll have to stock up, one of these days.

Mike Harrison · Sep 29, 2004

On Sat, 17 Jul 2004 08:17:11 -0700, DaveC <me@privacy.net> wrote:

Such as this one:

http://www.brightguy.com/detail.html?cart=1090077700192795&sku=OPA3W

how are the LEDs configured? Are they paralleled? Each with a series
resistor? Regulator?

In this application, the source is 2.4-3.0 volts, depending on type of cell.
Any idea?

Low-cost flashlights often use battery (coin/button-cell) internal resistance for current limiting.
Seems to work OK in practice, although probably somewhat less than optimal.
For <=3v batteries, there will be some sort of voltage booster - this can be pretty simple, e.g.
http://www.emanator.demon.co.uk/bigclive/joule.htm

Dennis M. O'Connor · Sep 29, 2004

"Activ8" <reply2group@ndbbm.net> wrote ...

An old partner told me
that when the slaughter cows, the have a contraption that drive a
rod through the brain rapidly so the cow dies fast and can't pump
adrenaline into the blood, thereby making the meat tough and gamey.

1) Watch your cross-posting

2) IIRC, not exactly. In the US, cows are slaughtered with a "captive bolt
gun",
which is typically placed in a particular spot (where the skull is weak)
between the eyes of the cow and hits the skull with tremedous impact.
This sends a shock wave through the brain, causing massive brain trauma
and unconsciousness; the animal stops breathing, but the heart continues
to pump.
Some guns penetrate the skull, but some less-messy designs do not: it is
the
shock that does the killing, not the penetration. After trauma-induced
brain-death
the cow is then hoisted by its back feet and its throat is cut. Since the
heart is still
pumping at this point, the blood flows quickly out of the cow; it is
important
to drain as much blood as possible from the carcass.

The quality of beef is not affected by adreniline; however, this is a
problem with pigs. If a pig gets frightened before slaughter, the
meat will be of lower quality.

( My wife took a meat slughtering course in college: live animal to
commercial boxed cuts. )
--
Dennis M. O'Connor dmoc@primenet.com

Watson A.Name \"Watt Sun · Sep 29, 2004

Rich Grise wrote:

pil top-posted:

that really helped alot. Pinouts of my transisors are correct because I
measured their HFE's on my DMM.

One question, about the mains hum - I am using a 1,5V cell. Will I still
hear the hum if I use this cell instead of using a mains PSU? And if so,
why?

You'll hear it when you touch the input point, because your body is
picking up the 60Hz power freq that's everywhere. Also, your circuit
itself could be acting as that antenna.

Well, I once built a proximity detector, and tried it out outside.
Turns out it's just a hum detector, and it wouldn't work at all outside,
next to the car, where there is almost no hum. Inside where the
electrical wiring is, no problem, it works okay. So hum isn't everywhere.

"Andrew Holme" <ajholme@hotmail.com> wrote in message

"pil" <pil@webmail.co.za> wrote in message

I built the amplified ear found at
http://www.electronics-lab.com/projects/audio/023/
I do get some noise out of it that sounds a lot like one of these

listening

devices but thats it. No sounds are picked up by the mic.

What could be wrong. All trannies have hfe's of 140-180.

1. You should hear mains hum (buzz) if you touch the input with your
finger.

exxos · Sep 29, 2004

"Jim Thompson" <thegreatone@example.com> wrote in message
news

fb0h0hiv6eoe3bsg0inrrb4ush9ph0j9k@4ax.com...

I'm sure everyone is, by now, aware that I had a fatal computer crash.

Fortunately it's all backed up.

Question: How do I restore Internet Explorer's Favorites, Cookies,
etc.??

assuming you made a backup of the 2 folders first, you simply copy them
back, I do this all the time.

Chris

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Guy Macon · Sep 29, 2004

Jim Thompson <thegreatone@example.com> says...

You will certainly agree, I'm ugly as sin, and bear no resemblance to
my granddaughter ?

Could you pose in the same kind of dress she is wering and post the
pictures on the net? That way we could make a fair comparison...

Watson A.Name - \"Watt Su · Sep 29, 2004

"Oppie" <boppie@-nospam-ludl.com> wrote in message
news:12TRc.25247$_C6.17677@cyclops.nntpserver.com...

I still haven't been able to find anybody at Parker Corporate that can
help
me get posters of the "I am an Engineer... Engineers see the world
differently" advertising campaign. Nobody at corporate seems to know
what
this is about. 'guess this happens when companies get that large.

A couple comments on the following.

Re: pill, if everyone thought like an engineer, then there would be no
need for that profession, hence the engineer would suffer the same fate
that consumer electronic techs suffered in the '70s and '80s: most
consumer electronics techs became unemployed when the price of TVs,
etc., became so low that it was cheaper to buy a new one than fix the
old one.

Re: outer space: I really loved that one that showed an astronaut in his
space suit talking on a two-way hand-held walkie-talkie! Like, Right...

I'm still trying to figure out the implications of this one:

I believe "drug discovery" is more than
just a phase some people go through in college.

I find the following two mutually contradictory.
I would vote for the first one taking precedence.

I believe a man with a semiconductor
is still no match for a woman.
editorial comment: that's messed up!

I believe there's nothing more exciting
than a submicron package.

Re: "playing with sand", I consider that an extremely severe
understatement. Like, grains of sand aren't submicron!! It's gone a
l-o-n-g way past the point of playing!! Seriously!!

Years ago, back when there was a local memory wafer plant that needed
expanding, the company got a contractor to build an addition onto the
bldg. The production yield went down to 40% when the contractor started
working. After all, the contractor was only playing with gypsum
wallboard, which is just a kind of sand..

And finally, I think I should differentiate the engineer and tech. Re:
fixing a broken flashlight, that's the tech's method. The engineer will
rip out the incandescent light bulb and replace it with a Luxeon Star
LED, and put some lithium cells in there, too!

So far, the ones I've seen in "Machine design" magazine are:
================
Parker Hannifin

I am an Engineer.

I believe it is better to fix a broken flashlight
than spend 2 dollars on a new one.

I believe explosions in outer space
only make a sound in the movies.

I believe gold jewelry is a waste
of a good conductor.

I believe Yoda put it best when he said,
"Do or do not, there is no 'try'"

Engineers see the world differently
================
Parker/ life sciences

I am an Engineer.

I believe the human body is the
world's most amazing machine,
but it had a 100,000 year
head start on us Engineers.

I believe someday soon,
even a tricorder will be antiquated.

I believe "drug discovery" is more than
just a phase some people go through in college.

I believe what's blazing fast today is
painfully slow tomorrow.

I believe that the world would be a better place
if there were a pill that made everybody
think like an Engineer.

Engineers see the world differently
================
Parker/semiconductor

I am an Engineer.

I believe that the human hair
is not a measurement standard

I believe if athletes could keep pace with
the speed of semiconductors,
they'd be running a 30 second mile.

I believe a man with a semiconductor
is still no match for a woman.
editorial comment: that's messed up!

I believe there's nothing more exciting
than a submicron package.

I believe that it's ironic that some
of the most amazing advancements
have come from a bunch of people
playing with sand.

Engineers see the world differently
================

I somehow think that there should be a mention of Burma-shave in there
somewhere just for the nostalgia aspect.
Oppie

John Woodgate · Sep 29, 2004

I read in alt.binaries.schematics.electronic that Watson A.Name - "Watt
Sun, the Dark Remover" <NOSPAM@dslextreme.com> wrote (in <10hh3hsrdnmih7
0@corp.supernews.com&gt

about 'More of the Parker Advertisments', on Tue,
10 Aug 2004:

After all, the contractor was only playing with gypsum
wallboard, which is just a kind of sand..

You can turn calcium sulfate into silicon dioxide? Tell Uncle Al
immediately!
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Oppie · Sep 29, 2004

"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com> wrote
in message news:10hh3hsrdnmih70@corp.supernews.com...

"Oppie" <boppie@-nospam-ludl.com> wrote in message
news:12TRc.25247$_C6.17677@cyclops.nntpserver.com...
I still haven't been able to find anybody at Parker Corporate that can
help
me get posters of the "I am an Engineer... Engineers see the world
differently" advertising campaign. Nobody at corporate seems to know
what
this is about. 'guess this happens when companies get that large.

A couple comments on the following.

Re: pill, if everyone thought like an engineer, then there would be no
need for that profession, hence the engineer would suffer the same fate
that consumer electronic techs suffered in the '70s and '80s: most
consumer electronics techs became unemployed when the price of TVs,
etc., became so low that it was cheaper to buy a new one than fix the
old one.

= Yeah, it seemed sort of elitist.

Re: outer space: I really loved that one that showed an astronaut in his
space suit talking on a two-way hand-held walkie-talkie! Like, Right...

= <grin>

I'm still trying to figure out the implications of this one:
I believe "drug discovery" is more than
just a phase some people go through in college.

= 'Drug discovery' is the formal name to researching for the purpose of
coming up with new pharmaceuticals. Nice double meaning though.

I find the following two mutually contradictory.
I would vote for the first one taking precedence.

I believe a man with a semiconductor
is still no match for a woman.
editorial comment: that's messed up!

I believe there's nothing more exciting
than a submicron package.

Re: "playing with sand", I consider that an extremely severe
understatement. Like, grains of sand aren't submicron!! It's gone a
l-o-n-g way past the point of playing!! Seriously!!

Years ago, back when there was a local memory wafer plant that needed
expanding, the company got a contractor to build an addition onto the
bldg. The production yield went down to 40% when the contractor started
working. After all, the contractor was only playing with gypsum
wallboard, which is just a kind of sand..

= Strictly speaking, wallboard is Gypsum which is magnesium sulphate. Sand
is Silicon Dioxide.
As you know, between any vibration which can really mess up an IC
manufacturing process and extra contaminants for the filtration process to
handle, definite effect on yields.

And finally, I think I should differentiate the engineer and tech. Re:
fixing a broken flashlight, that's the tech's method. The engineer will
rip out the incandescent light bulb and replace it with a Luxeon Star
LED, and put some lithium cells in there, too!

= Dunno, I'm an engineer by way of the workbench. I like simple fixes but
could see myself repairing a flashlight.
Oppie
>

Richard Crowley · Sep 29, 2004

Years ago, back when there was a local memory wafer
plant that needed expanding, the company got a contractor
to build an addition onto the bldg. The production yield
went down to 40% when the contractor started working.
After all, the contractor was only playing with gypsum
wallboard, which is just a kind of sand..

= Strictly speaking, wallboard is Gypsum which is magnesium
sulphate. Sand is Silicon Dioxide.
As you know, between any vibration which can really mess
up an IC manufacturing process and extra contaminants for the
filtration process to handle, definite effect on yields.

We freaked when Mt. St. Helens (in S.W. Washington state,
but quite prominent from anywhere in the Portland, Oregon
area) blew because of all the very fine ash in the air. It was
just a horrible mess. The auto parts stores sold out of air filters
by the next day. Many of us had to replace our gutters because
the ash turned to concrete if you let it get wet without washing
it away immediately.

At the entrance to our fab buildings we had people with vacuum
cleaners going over our outer clothes before we could enter the
building. We also introduced some vacuum shoe-cleaners that
collected a remarkable amount of grime. And then there were
the "wind-tunnel" passageways where you walked through a
pretty stiff breeze on your way into the cleanroom.

End result of all the extra microcontamination measures was that
the particle counts inside the fabs went DOWN after the volcano
erupted. We have kept several of those extra measures in place
ever since. Its tough keeping a space at class-1 with all those
filthy humans that you have to let in.

John Woodgate · Sep 29, 2004

I read in alt.binaries.schematics.electronic that Oppie <boppie@-nospam-
ludl.com> wrote (in <EG5Sc.27816$V96.18976@cyclops.nntpserver.com&gt

about 'More of the Parker Advertisments', on Tue, 10 Aug 2004:

Strictly speaking, wallboard is Gypsum which is magnesium sulphate.

Gypsum, yes, but magnesium sulfate is Epsom salts. Perhaps the building
was indeed evacuated. (;-)
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Oppie · Sep 29, 2004

"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message >

Strictly speaking, wallboard is Gypsum which is magnesium sulphate.

Gypsum, yes, but magnesium sulfate is Epsom salts. Perhaps the building
was indeed evacuated. (;-)

<groan! but a good one John>

Er, Calcium Sulphate. I do stand corrected.
CaSO4ˇ2H2O

Rich Grise · Sep 29, 2004

Watson A.Name - "Watt Sun, the Dark Remover" wrote:

And finally, I think I should differentiate the engineer and tech. Re:
fixing a broken flashlight, that's the tech's method. The engineer will
rip out the incandescent light bulb and replace it with a Luxeon Star
LED, and put some lithium cells in there, too!

No, the engineer dashes off a schematic on the back of an envelope of a
flashlight with the incandescent bulb ripped out and replaced with a Luxeon
Star LED, and some lithium cells, too; and hands it to the tech to build it,
using, typically, stone axes and animal skins. ;-)

Cheers!
Rich

Watson A.Name - \"Watt Su · Sep 29, 2004

"John Woodgate" <jmw@jmwa.demon.contraspam.yuk> wrote in message
news:FdpEhhEoLOGBFwOK@jmwa.demon.co.uk...

I read in alt.binaries.schematics.electronic that Watson A.Name -
"Watt
Sun, the Dark Remover" <NOSPAM@dslextreme.com> wrote (in
10hh3hsrdnmih7
0@corp.supernews.com&gt about 'More of the Parker Advertisments', on
Tue,
10 Aug 2004:

After all, the contractor was only playing with gypsum
wallboard, which is just a kind of sand..

You can turn calcium sulfate into silicon dioxide? Tell Uncle Al
immediately!

Sand isn't just made of silicon. Ask any Hawaiian. ;-)

But even if the wallboard didn't have any silicon, that has nothing to
do with the low yields. That was caused by the dust from the wallboard
getting thru the filtering system.

--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

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