12 volt hot water jug

That is what i am thinking to!, Just that some of the councils get very upset when you try that in there town square, but i supose nothing stoping me doing on the road.........some of the pot holes over here in South Oz do go down the the water table......any ideas where i can get the wood for the fire from?

Regards Richard

Agree... I had a waeco unit and a mate had another brand(not sure of the name, held 2 cups though)... Both took about 30-40mins to boil and sucked a bucket load of juice... I have an Aussie Bush Kettle, which boils quickly over a small fire and even quicker on a ring burner... Expensive but versatile, I wouldn't go away without it...

I agree, handful of leaves & few twigs down the centre, bush kettle is hard to beat, it boils in no time & the tiny fire is like putting out a cigarette!
We don't leave home without it.

So how many kilowatt seconds does it take to make a fire by rubbing two sticks together??

Ah! That's a direct linear function of the intelligence of the person rubbing the sticks.

Mike Harding

When using sticks rubbed together you don't use the kilowatts per second measurement, you should be using a stress "o" meter followed by a frustration gauge.

Regards Richard

use a hyclone..its fast cheap and relaible

Probably requires the same input as rubbing sticks together, Less effective though

every one..? well almost every one swears by them

"every one swears by them"

I think Nudie meant "every one swears at them" LOLOLOL

bloody secretaries....cant get a good one these days......wnat more money than I and cant even type

This forum is on a good roll tonight.
Mike
Is it linear or inverse linear function of the intelligence of person rubbing sticks.
More intelligent - knows better.
or more intelligent - limiting common sense?
Nudenut - sent your "theories" to the missus, she's going to prove it when she gets home.
Techie

what...that they're wrong.....or have you been losing brownie points, and you know she will be a little LOUD when she arrives home

Steel wool and some jumperleads. 2 seconds ;-)

The formula for Gorup Iq is :

GrIQ = 150/n, where n is the number of ppl in the group

Sorry GaryInOZ, you forgot the corrective factor when I'm included in the 'n'.

The formula becomes

GrIQ = 150/(n+1) LOLOL

what?

What a load of patronising drivel!

Bluesky - before you suggest people go somewhere and learn something I suggest you get your overall facts right.

The basic equations for the heating of water are linear whilst moving through the liquid phase and from liquid to boiling. This means that you can measure it in monekys per month and if you have half the power to heat the water it will take twice as long.

(Please let me know if you would like me to furnish you with these equations.)

You are of course quite right that there are many other factors such as pressure (not altitude, the variable is pressure - I could heat it at sea level but if I was in a pressure chamber with a lower pressure than the outside it would boil earlier.), overall volume of liquid, shape, position of moon etc but they will have very little bearing when compared to a drop in energy, work factor, monkeys per minute etc.

The question revolves around the relative time to boil some water when compared to another method - not being pendantic about units used etc, the equations are linear in the basic form and that is what matters.

Andrew

Bluesky,

Is that one of those thingies that looks like someone removed the element from an old style jug and attached alligator clips to the trailing wires ?

I've seen those in camping equipment outlets but never really paid that much attention to them.

>Mike, your calculations are incorrect regarding that problem
>using the warming up of water.

I don't think so.

Nevertheless if you're so sure perhaps you would be good enough to point out to me where I got it wrong?

>1) Energy passed from one substance to the other is called
>calories or Kilojoules and not watts Calories or Joules are
>quantity of potential and kinetic work but Watts are rate of work.

Which is why I did the calculation in kilowatt seconds and you'll find that one wattsecond is exactly equal to one Joule.

>Mike join the newsgroup called wastewatts@yahoogroups.com
>and you'll learn something about energy.

I already know something about energy.

Mike Harding