The MacGuyver thread

[Jimmers]

I've got 2 AA batteries, aluminum foil and possibly some copper wire. I've run out of matches and I've lost my lighter. Can anyone tell me how to make a cigarette lighter (car-like) from the above?

[Tenobok]

The only thing that I can tell you is, that the guy's name is MacGyver.

To your problem: I did always solve this problem by using a hot plate. Yes, it's a waste of electricity, but it works.
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[Naib]

Slave to the flame
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[zenlunatic]

If I told you, I would have to kill you, (and Naib just because).

[mdeininger]

maybe the batteries will light up if you throw them into a can of pepsi ;D

oh, wait, no pepsi.
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[atrus123]

swallow the batteries and the copper wire. wear the aluminum foil on your head like a hat. start chanting. in a couple of hours, the aliens should show up, and one of them is bound to have a lighter you can borrow.
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[gotaserena]

Electric rigidity of air : 10.000 V/m^2
Two AA batteries (in series): 3 V

Distance to have dielectric breakdown of air (and hence a spark): about 1/3 of a milimeter...

I'd get the copper wire, make two wires and connect each to each end of the batteries in series, and then bring the other end of each wire to the distance above.

I'll doubt that the spark of 3 V will be enough to ignite anything, though.

[Naib]

spark will not ignite the fag, there will not be enough energy in it
Neither is their enough energy in two AA battery's to heat up the copper wire to a temperature to ignigite tobbaco IF the battery's were in series (or parallel) and the stack was shorted out with the wire.

Yr best bet is to use the battery's and throw them at some1 and then use the copper wire to threaten some1 for a light
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Great Britain is a republic, with a hereditary president, while the United States is a monarchy with an elective king

[dmitchell]

Impossible -- you have no duct tape.
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[/dev/random]

Find some change and buy a new lighter?

[playfool]

connect batteries in serie then go to the kitchen and dig out some steel wool.. now create a spark by connecting the two poles with the wool (you can use the wire to make the process easier) and voila flame.

I'm unsure if that will work with 2 AA batts but I've seen it done with other types.

[Ian]

I've started fires with car batteries before...but those are 12 volts and can source hundreds of amps, making wires basically vaporize from the heat.

My advice, stop smoking. Then you don't have to worry about how to light one up.

[dforsyth]

take the copper and make a small wire frame model of a person. then take teh foil and make a hat for the man. NOW take the two batteries and put them in your phone. use that phone to call a friend with a light.
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4~ <-- me, fapping to Palin.
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[xPAGANx]

Take the copper wire and make two coils. One of the coils will have significantly more winds in it to amplify the output. Attach the Batteries in series to the low wind coil. Place the large turn wire coil next to the other coil to amplify the power. Create a small gap in the ends of the output coil to create a high voltage spark.

[gotaserena]

[Ian]

[energyman76b]

I don't know if two AA cells are powerfull enough - but if you short a 9V cell (like with a key, while you are carrying it in a trouser), the cell and the key will get hot, really,really fast (I burnt myself that way).
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[Welsh Mounting Sheep]

1) take both batteries & go outside

2) Find parked car; throw batteries at passenger window till window smashes.

3) Open car door; Retrieve battery.

4) Try cigarette lighter in car dashboard.

5) If lighter does not work, try next car along till you find one with a lighter that works whilst ignition off.

WMS

(and before anyone says anything, YES I AM TAKING THE PISS!!! )

[Jimmers]

Yeah, I gave up on this. I tried making a stovetop coil-thing out of the aluminum foil and attaching the battery to it, but it just got mildly warm, and I had to recharge the battery. I thought about using an old computer power supply, but I didn't want a Darwin Award.

[mdeininger]

[sugar]

[curtis119]

[amne]

But i'm sure there is a way to improvise if you don't have duct-tape (e.g. because the villains took it from you before they locked you in their basement)?
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[Albert_Alligator]

[curtis119]