OK, I don't get it.

bikerbob59: OK, I don't get it.

7 ate 9 volt batteries

/ got nothing...
// maybe that arc lit up a greenlight?

meh. I had a diode-capacitor ladder voltage multiplier and a big 800v capacitor bank I pulled out of some old phone equipment that could pretty much belch sparks like that all day.

As the distance between the two electrodes went up, so did the amperage requirements until the batteries couldn't supply the needed amperage or the circuit broke. This almost certainly caused that rear wire connecting battery banks to overheat and break. After that, it probably touched the desk. Path of least resistance suggests it that the batteries then arced to the desk, then caused the scorching as it made it's way toward the metal edging of the desk.

/ $.02
// About 46.8 amps
/// 702 volts

I'll buy a month of TF to any of you who re-creates this experiment, but puts your tongue on the electrode. Results must be posted to YouTube.

/don't do this

Pft.
You should have seen what we did with the 330 mF capacitors we found in the surplus store. That's right, biatches, one-third of a Farad.

BKITU: I'll buy a month of TF to any of you who re-creates this experiment, but puts your tongue on the electrode. Results must be posted to YouTube.

I'll match that offer, but I'll pay in cash. Cold, hard cash.

That looked like an awful lot of work for very little payoff.

Zombalupagus: BKITU: I'll buy a month of TF to any of you who re-creates this experiment, but puts your tongue on the electrode. Results must be posted to YouTube.

I'll match that offer, but I'll pay in cash. Cold, hard cash.

But, but, the batteries would cost more than that!

so they built an arc welder with 9v batteries? huh that was a totally awesome way to waste 78 batteries.

I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.

PYROY: I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.

The fact that these kids DID own that many actually depresses me... poor bastages will never get any they don't pay for (and even then, they'll probably get their wallets stolen, unless they keep them in a fanny-pack and don't remove them during the act - which is highly probable)

PYROY: I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.

You can get a 72-pack on Amazon from $89.

Link

Erase Gus Fring's hard drive?

Link
This dude has 244 9v batteries.
//nothing too great really...

I never have 1 spare battery at my house.

ThaGravy: Link
This dude has 244 9v batteries.
//nothing too great really...

he did short out one battery (or more) which is hillarious
ooooo where can I get the small IR temp meter ??

bikerbob59: Zombalupagus: BKITU: I'll buy a month of TF to any of you who re-creates this experiment, but puts your tongue on the electrode. Results must be posted to YouTube.

I'll match that offer, but I'll pay in cash. Cold, hard cash.

But, but, the batteries would cost more than that!

Shhhhhhhhhhh! I'm guessing whoever takes this bet isn't really all that good with math.

ThaGravy: Link
This dude has 244 9v batteries.
//nothing too great really...

Why is there no arc when he's measuring with the voltmeter?

AverageAmericanGuy: ThaGravy: Link
This dude has 244 9v batteries.
//nothing too great really...

Why is there no arc when he's measuring with the voltmeter?

Seriously? Because voltmeters have extremely high impedence.

FrancoFile: Pft.
You should have seen what we did with the 330 mF capacitors we found in the surplus store. That's right, biatches, one-third of a Farad.

My father told me about how he took a tour of a TV station around 1950, and they had a 2-Farad variable capacitor. He didn't know what it was for, so I assume it was for defending the tower from stray raptors.

Dude is lucky.. Does he realize the danger? all the batteries now have 1000+ volts running through them.

possible explosion anyone?

BKITU: I'll buy a month of TF to any of you who re-creates this experiment, but puts your tongue on the electrode. Results must be posted to YouTube.

/don't do this

You're such a buzzkill.

/do this

Q: What do 9-volt batteries and assholes have in common?

A: You're not supposed to lick them, but sometimes you do.

rlandrum: As the distance between the two electrodes went up, so did the amperage requirements until the batteries couldn't supply the needed amperage or the circuit broke. This almost certainly caused that rear wire connecting battery banks to overheat and break. After that, it probably touched the desk. Path of least resistance suggests it that the batteries then arced to the desk, then caused the scorching as it made it's way toward the metal edging of the desk.

/ $.02
// About 46.8 amps
/// 702 volts

Or a ball of molten metal rolled across the desk.

The Loaf: PYROY: I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.

You can get a 72-pack on Amazon from $89.

Link

Wait, that cost $89?!? For a little spark? Meh

Ebenator: Q: What do 9-volt batteries and assholes have in common?

A: You're not supposed to lick them, but sometimes you do.

I was going to guess they both tingle when you lick them.

Nuclear Monk: Ebenator: Q: What do 9-volt batteries and assholes have in common?

A: You're not supposed to lick them, but sometimes you do.

I was going to guess they both tingle when you lick them.

how did this become about salad tossing?

rlandrum: As the distance between the two electrodes went up, so did the amperage requirements until the batteries couldn't supply the needed amperage or the circuit broke. This almost certainly caused that rear wire connecting battery banks to overheat and break. After that, it probably touched the desk. Path of least resistance suggests it that the batteries then arced to the desk, then caused the scorching as it made it's way toward the metal edging of the desk.

/ $.02
// About 46.8 amps
/// 702 volts

If it was in series, the current would remain the same as that of an individual 9v battery. Judging from the lightshow, it was most likely a parallel circuit. Low voltage, high amperage.

If you have 78 9 volt batteries, you can do this

You mean I too can make a boring video and post it online?

I will give it this, most other videos would have spent a few minutes talking about the set-up and problems they encountered in order to give you :13 seconds of meh. So well done there.

I do the same thing every day. But I use a Miller Bobcat 250.

/250 amps
//melts steel
/// it called welding

PYROY: I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.

he indicated that the batteries are used, he might work for a place that uses equipment which takes these batteries and he collects the used ones. Inventory companies use scanners that take these batteries and I'm sure the they replace the batteries after every use.

Most low voltage DC arc welders start at 24v. In fact, trying hooking up two car batteries in series, then touch them together. Amazing how much spark you can get (it can weld terminals together). 78 nine volt batteries = 702V.. that's a lot of voltage, just not much amps (so you get a nice spark, but no power).
Link

PYROY: I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.
~
~
AT FIRST I WAS ALL..


But then I was.. "wow, that is kinda deep."

// or was it the other way 'round?

//// buckets!

PYROY: I will never in my lifetime own 78 9v batteries at the same time. That's really depressing somehow.

My neighbor has crates of them in his basement. He has to replace them in smoke dectectors yearly in apartments at various complexes. He's in a rock band and has tons of gadgets that require them. Effects pedals and whatnot.

Like 3 milk crates full. Repacked in the boxes the new ones came in.

They were creating a fireball, man. The Fringe lab is real.

KNaBisco: rlandrum: As the distance between the two electrodes went up, so did the amperage requirements until the batteries couldn't supply the needed amperage or the circuit broke. This almost certainly caused that rear wire connecting battery banks to overheat and break. After that, it probably touched the desk. Path of least resistance suggests it that the batteries then arced to the desk, then caused the scorching as it made it's way toward the metal edging of the desk.

/ $.02
// About 46.8 amps
/// 702 volts

If it was in series, the current would remain the same as that of an individual 9v battery. Judging from the lightshow, it was most likely a parallel circuit. Low voltage, high amperage.

Not sure if you guys are being deliberately stupid. or not.

It is series, it is a high voltage. You need a high voltage to ionize air - and get a nice arc. Power (energy per second) or brightness etc is Voltage x Current - and at 700 volts just a very small current, say 100 ma would deliver 70 watts, which is more than enough to be quite bright and melt a small piece of wire.

The internal resistance of a 9v battery guarantees that the current will be pretty low, but given that the ld50 for current is somewhere between 60ma and 200ma (not a lot of current though the lower end is for ac) and according to this data sheet http://data.energizer.com/PDFs/522.pdf these guys can supply it - this could be a lethal dose, if you wire your self up correctly.

BlahBlahBlahNeil: KNaBisco: rlandrum:

Not sure if you guys are being deliberately stupid. or not.

It is series, it is a high voltage. You need a high voltage to ionize air - and get a nice arc. Power (energy per second) or brightness etc is Voltage x Current - and at 700 volts just a very small current, say 100 ma would deliver 70 watts, which is more than enough to be quite bright and melt a small piece of wire.

The internal resistance of a 9v battery guarantees that the current will be pretty low, but given that the ld50 for current is somewhere between 60ma and 200ma (not a lot of current though the lower end is for ac) and according to this data sheet http://data.energizer.com/PDFs/522.pdf these guys can supply it - this could be a lethal dose, if you wire your self up correctly.


Yes. I think 9V batteries can source ~ 1A for a short time. Long enough to fry something important.

BlahBlahBlahNeil: KNaBisco: rlandrum: As the distance between the two electrodes went up, so did the amperage requirements until the batteries couldn't supply the needed amperage or the circuit broke. This almost certainly caused that rear wire connecting battery banks to overheat and break. After that, it probably touched the desk. Path of least resistance suggests it that the batteries then arced to the desk, then caused the scorching as it made it's way toward the metal edging of the desk.

/ $.02
// About 46.8 amps
/// 702 volts

If it was in series, the current would remain the same as that of an individual 9v battery. Judging from the lightshow, it was most likely a parallel circuit. Low voltage, high amperage.

Not sure if you guys are being deliberately stupid. or not.
~
~
Well you're just being deliberately smart so pot kettle black.