Kindling for the Fire

[Watson A.Name - "Watt Sun]

I remember, when I was a kid, we had a veggy tray from an old fridge
that we used for draining the oil from the engine when we changed oil.
One time we had some oil in it out in the back yard and I decided to
see if it would burn, so I wadded up a sheet of newspaper and lit it,
and tossed it in the pan. Well nothing much happened at first, the
paper just acted as a candle wick, and kept burning. But the oil
started getting hotter and finally started burning too. The flames
started getting bigger, so I decided it was time to put the fire out.
So I turned the water hose on the pan. WHOA-HO-HO! Big mistake! The
flames shot up ten or fifteen feet! What a conflagration! The water
hit the boiling oil and turned to steam, and that was like blowing air
on the oil. Nice way to get scalded and burned. So I learned a
lesson: never put water on burning oil. Later I learned that it
doesn't work with magnesium, too.

So here's some kindling for the fire.
http://www.rfcafe.com/references/electrical/electrocution.htm
I like starting a fire here once in a while, but it usually turns into
something of a totally different topic, and the bozos don't have the
courtesy to change the subject line so it just keeps on burning, and
burning...


--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
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goes directly to the trash unless you add NOSPAM in the
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Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[Winfield Hill]

Watson A.Name wrote...

http://www.rfcafe.com/references/electrical/electrocution.htm

"Cannot let go" at 13mA? That seems pretty low. Hand to hand,
I suppose. Hmm, is that dc or ac, and if ac at what frequency?

Thanks,
- Win

 

[Watson A.Name - "Watt Sun]

In article <bjpdon0f6k@drn.newsguy.com>, whill@picovolt.com
mentioned...

Watson A.Name wrote...

http://www.rfcafe.com/references/electrical/electrocution.htm

"Cannot let go" at 13mA? That seems pretty low. Hand to hand,
I suppose. Hmm, is that dc or ac, and if ac at what frequency?

Thanks,
- Win

Congrats, Win - you've thrown the first stick on the fire. Thanks.


--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
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My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[Glen Walpert]

On 11 Sep 2003 02:03:19 -0700, Winfield Hill <whill@picovolt.com>
wrote:

Watson A.Name wrote...

http://www.rfcafe.com/references/electrical/electrocution.htm

"Cannot let go" at 13mA? That seems pretty low. Hand to hand,
I suppose. Hmm, is that dc or ac, and if ac at what frequency?

Thanks,
- Win

And what do they think the difference is between "Ventricular
Fibrillation" at 90 mA and "Death" at 100 mA? Other than about 5
minutes, except under the most unusual circumstances?

Possibly more accurate info at
http://www.osha.gov/SLTC/etools/construction/electrical_incidents/eleccurrent.html

http://www.agc-ca.org/services/safety/Sb97-2.htm

http://cpmcnet.columbia.edu/texts/guide/hmg13_0006.html

Low voltage electrocution is most often caused by Ventricular
Fibrillation, described at:

http://sprojects.mmi.mcgill.ca/cardiophysio/venticularfibrillation.htm

http://www.emedicine.com/emerg/topic633.htm

For the description of the unusual circumstances where Ventricular
Fibrillation may not be fatal:

http://www.utilitysafety.com/archive/articles/jump_start_a_heart.htm

Unfortunately I can't now seem to find any references which describe
the exact electrical mechanism by which Venticular Fibrillation (VF)
occurs, although it is well understood. Deliberatly induced VF is
used to temporarily stop the heart for surgery, by applying a short,
low current pulse to the nerve which fires the heart (crudely put)
durung the "reset" or "succeptable" part of its cycle - essentially
preventing the recharge of the ion powered synapse, so that it cannot
fire, and without firing, it cannot recharge. I have read that it is
not actually current which is critical, but dI/dt during the reset
period, and since the dI/dt on initial contact can be much greater
than during the subsequent sineusoidal current, initial contact at the
right polarity and timing of the heartbeat can cause death at currents
much lower than those that reliably cause death (per the standard
charts). Note that GFI breakers can take up to 1/10 sec to trip, and
provide no protection from initial contact electrocution!

Furthermore, individual succeptablilty to VF varies widely, and there
are plenty of documented cases of death caused by only a few
milliamps.

Bottom line as I see it is that contact with line voltage is a lot
like Russian Roulet with 1 bullet and a few hundred empty chambers.
Why risk it?

Regards,
Glen

 

[CWatters]

More fuel..

http://www.darwinawards.com/darwin/darwin1999-50.html


"Glen Walpert" <gwalpert@notaxs.com> wrote in message
news:8sg1mv4q207stdgh9a02q64397kjpi5v59@4ax.com...

On 11 Sep 2003 02:03:19 -0700, Winfield Hill <whill@picovolt.com
wrote:

Watson A.Name wrote...

http://www.rfcafe.com/references/electrical/electrocution.htm

"Cannot let go" at 13mA? That seems pretty low. Hand to hand,
I suppose. Hmm, is that dc or ac, and if ac at what frequency?

Thanks,
- Win

And what do they think the difference is between "Ventricular
Fibrillation" at 90 mA and "Death" at 100 mA? Other than about 5
minutes, except under the most unusual circumstances?

Possibly more accurate info at

http://www.osha.gov/SLTC/etools/construction/electrical_incidents/eleccurrent.html

http://www.agc-ca.org/services/safety/Sb97-2.htm

http://cpmcnet.columbia.edu/texts/guide/hmg13_0006.html

Low voltage electrocution is most often caused by Ventricular
Fibrillation, described at:

http://sprojects.mmi.mcgill.ca/cardiophysio/venticularfibrillation.htm

http://www.emedicine.com/emerg/topic633.htm

For the description of the unusual circumstances where Ventricular
Fibrillation may not be fatal:

http://www.utilitysafety.com/archive/articles/jump_start_a_heart.htm

Unfortunately I can't now seem to find any references which describe
the exact electrical mechanism by which Venticular Fibrillation (VF)
occurs, although it is well understood. Deliberatly induced VF is
used to temporarily stop the heart for surgery, by applying a short,
low current pulse to the nerve which fires the heart (crudely put)
durung the "reset" or "succeptable" part of its cycle - essentially
preventing the recharge of the ion powered synapse, so that it cannot
fire, and without firing, it cannot recharge. I have read that it is
not actually current which is critical, but dI/dt during the reset
period, and since the dI/dt on initial contact can be much greater
than during the subsequent sineusoidal current, initial contact at the
right polarity and timing of the heartbeat can cause death at currents
much lower than those that reliably cause death (per the standard
charts). Note that GFI breakers can take up to 1/10 sec to trip, and
provide no protection from initial contact electrocution!

Furthermore, individual succeptablilty to VF varies widely, and there
are plenty of documented cases of death caused by only a few
milliamps.

Bottom line as I see it is that contact with line voltage is a lot
like Russian Roulet with 1 bullet and a few hundred empty chambers.
Why risk it?

Regards,
Glen

 

[William R. Walsh]

Hi!

Fire, huh?

Nothing teaches you respect like fire can. Well, maybe electricity, but fire
produces a much better visual example...and FAIK most folks are visual
learners.

Two incidents come to mind that taught me a fair bit of respect for fire.
The first was my (admittedly VERY stupid -- Do NOT try this at home!)
spraying WD40 into a bottle I was using to hold spent matches after trying
to light a grill. Just as a point of curiousity, I grabbed a can of WD40 and
for no really good reason, I sprayed it into the bottle. FOOM! That made a
nice little channel of fire...

The second involved my conducting strange experiments on a bottled water
bottle. I put a little (about a teaspoon) of white fuel into the bottle and
tried to light it from a distance with an old pilot lighting stick I have
for such things. It took, and I decided to put it out by stomping it flat.
Bad idea. It went FOOM for a brief moment and then burned out.

I've never had any injuries and I don't plan to do anything foolish enough
to get any. It is a very seldom occurence that I burn anything. Every now
and then I feel that setting some hopelessly beyond repair or just plain
worn out equipment on fire can be quite fun, if done properly and SAFELY in
an area where nothing can get out of control and a fire extinguisher is kept
handy.

As for the thing on lethal amounts of electricity, I just don't think I buy
into it. I know an elderly electrician whose quick and dirty way to find a
110 circuit from 220 circuits (or the other way around) was to simply touch
them and say "this one tingles more". I would never do that myself, but this
guy isn't young and he is certainly still alive...and probably after having
done this very often!

William

 

[Frithiof Andreas Jensen]

"Watson A.Name - Watt Sun" <alondra101@hotmail.com> wrote in message
news:MPG.19c9d56121834c39989697@news.dslextreme.com...

on the oil. Nice way to get scalded and burned. So I learned a
lesson: never put water on burning oil.

True - for a better effect mix in some Turpentine followed by a generous
dose of fuming Nitric Acid instead;

Notes:

You do not have to ignite the Oil beforehand; you will want to devise a way
to pour the nitric acid from a safe distance of about 100 m for 5 liters of
oil and you probably want to do this in a place where there are no flammable
items and spectators around.

 

[Watson A.Name - "Watt Sun]

In article <8sg1mv4q207stdgh9a02q64397kjpi5v59@4ax.com>,
gwalpert@notaxs.com mentioned...

On 11 Sep 2003 02:03:19 -0700, Winfield Hill <whill@picovolt.com
wrote:

Watson A.Name wrote...

http://www.rfcafe.com/references/electrical/electrocution.htm

[snip]

Bottom line as I see it is that contact with line voltage is a lot
like Russian Roulet with 1 bullet and a few hundred empty chambers.
Why risk it?

Well, so far I've managed to dodge the bullet, after all the times
I've been shocked. Perhaps other people haven't been shocked as many
times as those of us who deal with electricity/electronics, but they
for the most part have dodged the bullet too.

But then most of life is like that. It's only a matter of time before
something you do gets you. Like driving, it's only a matter of time
before someone gets into an accident. Hopefully not fatal. But then
more people die in auto accidents than any other accident. So does
that stop us from driving? No.

Regards,
Glen

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
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My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[James Meyer]

On Sun, 14 Sep 2003 06:33:15 -0700, Watson A.Name - "Watt Sun"
<alondra101@hotmail.com> wroth:

But then most of life is like that. It's only a matter of time before
something you do gets you. Like driving, it's only a matter of time
before someone gets into an accident. Hopefully not fatal. But then
more people die in auto accidents than any other accident. So does
that stop us from driving? No.

Regards,
Glen

Almost all auto "accidents" are not really accidental. They usually
result from "applied stupidity".

I think electrical shocks are similar.

Jim

 

[Tom MacIntyre]

On Sun, 14 Sep 2003 14:57:17 GMT, James Meyer
<james.meyer22@verizon.net> wrote:

On Sun, 14 Sep 2003 06:33:15 -0700, Watson A.Name - "Watt Sun"
alondra101@hotmail.com> wroth:

But then most of life is like that. It's only a matter of time before
something you do gets you. Like driving, it's only a matter of time
before someone gets into an accident. Hopefully not fatal. But then
more people die in auto accidents than any other accident. So does
that stop us from driving? No.

Regards,
Glen

Almost all auto "accidents" are not really accidental. They usually
result from "applied stupidity".

I think electrical shocks are similar.

Jim

Tom was working on a TV chassis which was sitting on its side, power
applied, cable attached. Tom bumped the cable, and, before Tom's
magnificent dive to the Sencore isolation unit's power switch, the
chassis bottom made contact with Tom's left forearm. Tom was left with
dozens of burns from the various voltages present.

This didn't even compare, though, with the time that Tom tongue-tested
a cellular telephone PS, 10.6VDC, 850 mA. OUCH!!

Tom

 

[Watson A.Name - "Watt Sun]

In article <QB58b.15057$0p.538656@phobos.telenet-ops.be>,
colin.watters@pandora.be mentioned...

More fuel..

http://www.darwinawards.com/darwin/darwin1999-50.html

This looks like an Urban Legend to me. According to the manual for
Simpson 260-6P, the most the current can be with the probe tips
shorted is 75 uA. Below is an excerpt from that manual:
(use Courier font.)

From Simpson 260-6P Technical Data, Table 1-1 Page 1-8

8. Ohmmeter Circuit Effects
Range: R X 1 R X 100 R X 10,000

Nominal Open
Circuit Voltages: 1.5V 1.5V 9.0V

Nominal Short
Circuit Current: 125mA 1.25mA 75 uA


Indeed, the low ohms range can supply 125 mA, but at 1.5V it's
doubtful that that could have harmed him even with the probe tips in
his skin. Also, there is no warning anywhere in the manual of harmful
effects such as the one described. And as far as I know, there has
never been a documented case of this accident happenening in the
civilian world (this might reflect more on the U.S. Navy and the
oxymoron 'military intelligence'). And there were millions of Simpson
meters out there being used - they were the standard VOM for decades.
So I believe there has been some serious distortion of the truth
somewhere.

I got these .GIF pics of the whole manual including the schematic from
somewhere on the web. It might have been navyrelics.com or some test
equipment schematic website, in case anyone wants to verify this.

"Glen Walpert" <gwalpert@notaxs.com> wrote in message
news:8sg1mv4q207stdgh9a02q64397kjpi5v59@4ax.com...
On 11 Sep 2003 02:03:19 -0700, Winfield Hill <whill@picovolt.com
wrote:

Watson A.Name wrote...

http://www.rfcafe.com/references/electrical/electrocution.htm

[snip]

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[Watson A.Name - "Watt Sun]

In article <bjs42v$d6h$1@newstree.wise.edt.ericsson.se>,
frithiof.jensen@removethis.ted.ericsson.dk mentioned...

"Watson A.Name - Watt Sun" <alondra101@hotmail.com> wrote in message
news:MPG.19c9d56121834c39989697@news.dslextreme.com...

on the oil. Nice way to get scalded and burned. So I learned a
lesson: never put water on burning oil.

True - for a better effect mix in some Turpentine followed by a generous
dose of fuming Nitric Acid instead;

Notes:

You do not have to ignite the Oil beforehand; you will want to devise a way
to pour the nitric acid from a safe distance of about 100 m for 5 liters of
oil and you probably want to do this in a place where there are no flammable
items and spectators around.

When I was a kid, we used to pull stunts like this by putting the
nasty stuff in a glass bottle and shooting it from a distance with a
pellet gun or .22 caliber rifle. Man, that HNO3 sure burns your mucus
membranes. Makes an ugly brown cloud. This chemistry fanatic I knew
was into that kind of stuff. Most of my other friends were content to
just play with gunpowder.

I think my favorite liquid dispensing container was a spray can with a
tire valve soldered on the side. I could fill it up with the juice,
and prssurize it to a hundred pounds with a tire pump. Worked great
with flammable liquids, spit out a stream several yards long.

Since my dad painted, he had some of that stuff in a can. About the
only thing that turpentine seemed useful for was for putting on a
cat's rear end. They didn't like that very much. )

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[Watson A.Name - "Watt Sun]

In article <n609mv8ninur2frghtpehg64ns8d0tdr1p@4ax.com>,
james.meyer22@verizon.net mentioned...

On Sun, 14 Sep 2003 06:33:15 -0700, Watson A.Name - "Watt Sun"
alondra101@hotmail.com> wroth:

But then most of life is like that. It's only a matter of time before
something you do gets you. Like driving, it's only a matter of time
before someone gets into an accident. Hopefully not fatal. But then
more people die in auto accidents than any other accident. So does
that stop us from driving? No.

Regards,
Glen

Almost all auto "accidents" are not really accidental. They usually
result from "applied stupidity".

I think electrical shocks are similar.

In this case, I used the term accident to differentiate between that
cause of death and death by natural causes, such as cancer. So you
could put quotes around that term.

Jim

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[Watson A.Name - "Watt Sun]

In article <vs19mvgemqqavrfbb871c650r5gssvgkjr@4ax.com>,
tom__macintyre@hotmail.com mentioned...

On Sun, 14 Sep 2003 14:57:17 GMT, James Meyer
james.meyer22@verizon.net> wrote:

On Sun, 14 Sep 2003 06:33:15 -0700, Watson A.Name - "Watt Sun"
alondra101@hotmail.com> wroth:

But then most of life is like that. It's only a matter of time before
something you do gets you. Like driving, it's only a matter of time
before someone gets into an accident. Hopefully not fatal. But then
more people die in auto accidents than any other accident. So does
that stop us from driving? No.

Regards,
Glen

Almost all auto "accidents" are not really accidental. They usually
result from "applied stupidity".

I think electrical shocks are similar.

Jim

Tom was working on a TV chassis which was sitting on its side, power
applied, cable attached. Tom bumped the cable, and, before Tom's
magnificent dive to the Sencore isolation unit's power switch, the
chassis bottom made contact with Tom's left forearm. Tom was left with
dozens of burns from the various voltages present.

Fortunately they were only burns.

This didn't even compare, though, with the time that Tom tongue-tested
a cellular telephone PS, 10.6VDC, 850 mA. OUCH!!

I've tongue tested (as have probably just about everyone else) a fresh
9V battery, and your battery isn't that much more. Should have given
you a bit of a twinge...

Tom

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

 

[James Meyer]

On Sun, 14 Sep 2003 08:50:33 -0700, Watson A.Name - "Watt Sun"
<alondra101@hotmail.com> wroth:

Since my dad painted, he had some of that stuff in a can. About the
only thing that turpentine seemed useful for was for putting on a
cat's rear end. They didn't like that very much. )

When I were a lad, I used to make chlorine gas and put a cotton ball
with turpentine on it down into the green chlorine gas. It started "burning"
almost instantly. One of the byproducts was hydrochloric acid.

Jim "Still amazed that I survived." Meyer

 

[Stepan Novotill]

The following can be fun too: Fill a vessel up with salt water. throw
in two carbon rods connected to a car battery charger.
Run it a while till most of the chlorine has gone out.
Power off, put on a lid, hide behind a wall, power on and run the
generated gass into a SMALL baloon. Power off when 5" diameter.
Use a light plastic lid that will pop off and not hurt anyone if the
gas in the vessel ignites.

Then hold the baloon at arms length, close your eyes and take a match
to it. Do it with your hair wet, in wet smim trunks next to a swimming
pool so you can jump in if you catch fire. We had great fun with this
as kids. It is not unbearably loud but generates an incredible bang
and you feel a heat pulse similar to what you get when you set off a
large photoflash right against your skin.

 

[Stepan Novotill]

On Sun, 14 Sep 2003 18:03:10 GMT, Stepan Novotill
<snovotill@hotmail.com> wrote:

The following can be fun too: Fill a vessel up with salt water. throw
in two carbon rods connected to a car battery charger.
Run it a while till most of the chlorine has gone out.
Power off, put on a lid, hide behind a wall, power on and run the
generated gass into a SMALL baloon. Power off when 5" diameter.
Use a light plastic lid that will pop off and not hurt anyone if the
gas in the vessel ignites.

Then hold the baloon at arms length, close your eyes and take a match
to it. Do it with your hair wet, in wet smim trunks next to a swimming
pool so you can jump in if you catch fire. We had great fun with this
as kids. It is not unbearably loud but generates an incredible bang
and you feel a heat pulse similar to what you get when you set off a
large photoflash right against your skin.

I recommend wearing ear plugs.

 

[Stepan Novotill]

On Sun, 14 Sep 2003 08:50:33 -0700, Watson A.Name - "Watt Sun"
<alondra101@hotmail.com> wrote:

Since my dad painted, he had some of that stuff in a can. About the
only thing that turpentine seemed useful for was for putting on a
cat's rear end. They didn't like that very much. )

OK Watson, I give up. What effect does it have on the cat??

 

[Clifton T. Sharp Jr.]

Watson A.Name - Watt Sun wrote:

tom__macintyre@hotmail.com mentioned...
This didn't even compare, though, with the time that Tom tongue-tested
a cellular telephone PS, 10.6VDC, 850 mA. OUCH!!

I've tongue tested (as have probably just about everyone else) a fresh
9V battery, and your battery isn't that much more. Should have given
you a bit of a twinge...

I suspect the internal resistance of the battery limits what can flow
through your nice, wet tongue. I don't remember the short-circuit current
of a typical 9V battery, but it seems to me the last time I tested one
it was in the tens of milliamps.

--
"Here, Outlook Express, run this program." "Okay, stranger."

 

[Zak]

Stepan Novotill wrote:

The following can be fun too: Fill a vessel up with salt water. throw
in two carbon rods connected to a car battery charger.
Run it a while till most of the chlorine has gone out.
Power off, put on a lid, hide behind a wall, power on and run the
generated gass into a SMALL baloon. Power off when 5" diameter.
Use a light plastic lid that will pop off and not hurt anyone if the
gas in the vessel ignites.

Then hold the baloon at arms length, close your eyes and take a match
to it. Do it with your hair wet, in wet smim trunks next to a swimming
pool so you can jump in if you catch fire. We had great fun with this
as kids. It is not unbearably loud but generates an incredible bang
and you feel a heat pulse similar to what you get when you set off a
large photoflash right against your skin.

I understand such a balloon may ignote if you fire a photoflash at it.


Thomas