Something Different

[Mark Harriss]

Clockmeister wrote:

50KV is about half what moden electonic ignition systems put out, dickhead.

You know, I proved conclusively beyond all doubt you can push a
current through dry wood complete with figures and all you can
do is try and change the subject....possibly to something you're
slightly more knowledgable about.

What is this utter crap about wood spark plug leads??

 

[Mark Harriss]

Clockmeister wrote:

50KV is about half what moden electonic ignition systems put out, dickhead.

Ok so you are saying car systems put out about 100KV??
air has a breakdown of around 20KV per inch of airgap.

So you are trying to tell me your car ignition has 12.5cm
sparks flying out the end of a plug lead??.

That should be pretty spectacular....

 

[Clockmeister]

"Mark Harriss" <billy@blartco.co.uk> wrote in message
news:438a8338$0$23381$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com.au...

Clockmeister wrote:

50KV is about half what moden electonic ignition systems put out,
dickhead.




Ok so you are saying car systems put out about 100KV??

They're out there, think racing engines. 50KV and higher is not unusual.

air has a breakdown of around 20KV per inch of airgap.

You're trying to ignite a mixture of air and fuel, not just jump an air gap.
You need a healthy fat spark for that.

So you are trying to tell me your car ignition has 12.5cm
sparks flying out the end of a plug lead??.

Nope, small gap, fat spark.

That should be pretty spectacular....

Especially when you get bitten.

 

[The Real Andy]

On Sun, 15 Jan 2006 17:44:58 +1100, , nospam@ever.com.au wrote:

The Real Andy wrote:

On Sat, 26 Nov 2005 06:56:46 +1100, "Rod Speed" <rod_speed@yahoo.com
wrote:

McGrath <no@email> wrote
Rod Speed <rod_speed@yahoo.com> wrote
McGrath <no@email> wrote
Rod Speed <rod_speed@yahoo.com> wrote
McGrath <no@email> wrote
Rod Speed" <rod_speed@yahoo.com> wrote
McGrath <no@email> wrote
Rod Speed <rod_speed@yahoo.com> wrote
The Real Andy <will_get_back_to_you_on_This@> wrote

Its not the wood thats doing the conducting.

Yes it is.

You'll find it was the water that was
the conductor, not simply the wood.

Wrong with dry wood.

Dry wood is an insulator - not a conductor.

Depends entirely on the level of voltage
applied, just like with any insulator.

Well in the context of grounding a laptop,

The thread had diverged from that.

wood is useless and would act as an insulator.
In the context of the 'bandstand' incident,
water was the conductor - NOT wood.

In both instatnces wood was/is not a conductor.

Irrelevant to the general question about whether
wood, like any insulator CAN BE a conductor.

For the purpose of earthing - which is where this started,

Irrelevant to where it diverged to.

Somehow we diverged to the Geelong incident. The lightning
was conducted by water from the thunderstorm - not the wood.

Irrelevant to the general question about whether
wood, like any insulator CAN BE a conductor.

wood has NO conducive conductive abilities.

Pity about the situation that it diverged to.

Which was the situation where water was the
main conductive substance - NOT the wood.

Irrelevant to the general question about whether
wood, like any insulator CAN BE a conductor.

You said wood was doing the conducting - it wasn't.

Irrelevant to the general question about whether
wood, like any insulator CAN BE a conductor.

Sorry mate, but that 'general question' was never part of the thread.

Wrong, as always. It became part of the thread when you
made a spectacular fool of yourself when you claimed that
it wasnt the wood that conducted. Sometimes it is indeed.

It's simple. In this context of this thread, wood is NOT a conductor.

Wrong, as always. Just like with ANY conductor, its ALWAYS
possible to exceed the breakdown voltage and get it to conduct.
Most obviously when the wood isnt that thick and you have the
lightning hitting metal on the weather side, and then the wood
CAN break down even when it isnt wet.


The only time this can happen is when there is no possible way for the
lightning to find ground. What happens in this situation is that it
usually 'punches' or burns a hole in the material. Once again, the
material itself is not doing the conducting.

Lightning still follows the path of least resistance, and considering
that air breaks down at a much lower voltage than timber, the air will
always win.

Not quite right. Lightning is usually completely random. The force and
time levsl involved do not permit a "cool" appraisal of "the least
resistance".

So are you suggesting that lightning rods do not work?