Why don't you put those sparks to some use and make balls of light?
Over the last couple of years a new static generator has come to the market that has far greater output, especially current, that has almost no recharge time. Able to produce 14 to18 inch sparks at the rate of about 5 per second, and with plenty of current.
nice van de graaff- is the 4350 volts per millimeter a standard for air as an insulator for any spark or is it just a static type generator (not Tesla coil)?
@nickademuss42 - yes- I know, I have built several large Tesla coils with 5' sparks so I am familiar with those. I was just questioning the voltage rating? It sounds like a 900,000 volt Vandi Graaff has a lot shorter spark than a Tesla coil because of the DC static voltage- is that correct? Don't get me wrong- that is really admirable spark off that machine, I want to build one for my collection. Just wanted to clarify the way the voltage is figured...thanks!
@nickademuss42 technically you can. you can power a transformer including a Tesla coil with pulsed dc that can be aqwired with a spark gap. the problem you would get is it not creating a strong magnetic field because of its low amps
I saw how the generator was built on the instructables, but i could not see all of the steps because i was not a member is there any way that you could get a video of the insides and how it is all set up? thanks
hi i really like your quality work in putting that thing together, i am almost done building mine, since yours is doing a good job in producing good voltage i was just wondering, i read somewhere that said it is better to put the brushes on the side where the belt is rolling away or off from the roller, does this matter or do you know which side works better to put the brushes at and can i put brushes on both sides of one roller to make it more effective, or to eliminate guessing??
Good creative thinking, but the coil would be so small it wouldn't produce arcs nearly as long as the van de graaff, since the capacitor in the resonant circuit (the sphere insulated from earth) has such a low capacitance. A transformer is much more practical to charge a capacitor to run a tesla coil. Van de graaff output concerns coulumbs and joules of stored charge. You can probably use VERY large sphere/leyden capacitors to increase capacitance, but that means VERY slow charge/discharge rate.
@ubuntupokemoninc also consider that its not an alternating current and since a tesla coil is a type of transformer it needs very high frequencies to work.
That's 883,920 volts by the calculator or 4350 volts per millimeter. At 27 Miro amps, The 1ft sparks it has generated are to faint for my camera to pick up, but you can sure feel them.
@nickademuss42 Mine will hit you from 3 to 4 feet away but my camera won't catch it either. It will make your arm spasm and leave blisters on your skin, light a 4 foot fluorescent bulb 6 feet away and make plants on the ground glow in the dark from the plasma jets if you don't discharge it.. It put a 6 foot streamer to my TV the first time I fired it up in the house, I'll never do that again. LOL without the sphere and running at top speed it will make the hairs on your body stand up from 3 feet
@adeptuslux It's amazing what a drill motor, 2 pieces of PVC, a nylon high pressure hose connector, an old 12 inch plastic globe covered with aluminum duct tape, 4 old bearings from burnt out bathroom exhaust fans and some flagging tape will do if put together correctly. The hardest part was shaping the rollers so the belt would stay on at 500,000 rpms. Just kidding, but it is fast. Fat rollers to separate the belt is a must to reduce power loss on the way up the tube. Fun for the feeble minded.
@adeptuslux My one in progress has three large belts feeding a propane tank 8 feet from ground. It has a phi based wind turbine that turns faster than the wind speed that I designed to turn the belts and charges a 5 gallon bucket Leyden jar 5 feet from ground. My proprietary shaped semi-sphere will make a streamer that draws energy from the ionosphere and the design (sans wind turbine) will eventually power my GONAD, Gyromagnetically Operated Nullgravity Air Disk. Bite me DARPA! It's mine! LOL
@adeptuslux Are you kidding about the fat roller being a must? Mine was shooting a 10 inch spark until I changed the top roller from 2" PVC to 1.25" teflon and the bottom roller from 1.625" nylon to 1.100" nylon and now I get 1 to 2 inch sparks... What the hell is going on? I expected it to be better when going to solid teflon top roller and solid nylon bottom roller but ,NO. I changed the bottom roller because it WAS PVC covered by nylon tape. Now I can only get about 2 inches. Thanks Keith
@morganhv no it is probibly over 900,000 because its at such a amperage it can not energize the air like a transformer but its is definitely 900,000 or more
@morganhv actually 1 inch of arc is about 50,000 and his looked like it was 5 inches away so that,s 250,000 i think but i could be wrong because i dont knaow for sure how many inches the arc travled
Still, your question was not very accurately asked... Ordinary laser beams cannot ionise air. One needs a lot more power per square meter to do that. I guess I did not consider what would happen if one uses a high-power one. Could you please tell me of "non-lethal weapons based on the very same principle". If a laser is harmless, I think it won't be able to ionise air? Prove me wrong, please!
YES - they do actually! There are non-lethal weapons based on the very same principle. A high power LASER will create an ionic/polarised path for an electrical charge to be dissipated (for example lighting jumps through air (a dielectric) even though air is normally an insulator, purely because the energy is comparatively large. This jumping DOES occur, it's just a question of voltage - My query was just wondering if 900,000 volts is anywhere near enough to jump down a LASER beam or not.
Even without a collector, if there was "enough" voltage, it would arc out (following the path of least resistance). Anyone walking close to it (I presume) would then act like a collector and draw the voltage into themselves. The polarised path created by a LASER is a path which has less electrical resistance than the surrounding atmosphere because the ions are aligned. So by directly firing a charge into it (whilst pointing it at a collector/person) the charge is channeled and dissipated.
HV Kool !
HorizonDelta 1 month ago
Вряд ли тут 900кВ,судя по длине искры.я подобные искры по 12см с 2-х умножителей получал...умножители-"прокачаные" УН9/27.
SergOFF220 1 month ago
Website for spark length voltage (or google spark length voltage)
dub-dub-dub daught kronjaeger daught com/hv/hv/msr/spk/
KanzlerM 5 months ago
what if you put two of those side by side?
HeroHasGuns 5 months ago
amazing!
zubinbutt98 6 months ago
Can i touch that with my bare hand?
MrJustsze 7 months ago
you should build a water capacitor for longer and thick loud sparks. It only costs around 10 bucks.
2012thedevil 9 months ago
now lick it
rkshirey 11 months ago
Why don't you put those sparks to some use and make balls of light?
Over the last couple of years a new static generator has come to the market that has far greater output, especially current, that has almost no recharge time. Able to produce 14 to18 inch sparks at the rate of about 5 per second, and with plenty of current.
iBetYouDidnt 1 year ago
nice van de graaff- is the 4350 volts per millimeter a standard for air as an insulator for any spark or is it just a static type generator (not Tesla coil)?
HybridWaterMan2 1 year ago
@HybridWaterMan2
Tesla coil is AC at high frequency, this is DC at low current, you can make 100,000 volts of static just rubbing your feet on the carpet
nickademuss42 1 year ago
@nickademuss42 - yes- I know, I have built several large Tesla coils with 5' sparks so I am familiar with those. I was just questioning the voltage rating? It sounds like a 900,000 volt Vandi Graaff has a lot shorter spark than a Tesla coil because of the DC static voltage- is that correct? Don't get me wrong- that is really admirable spark off that machine, I want to build one for my collection. Just wanted to clarify the way the voltage is figured...thanks!
HybridWaterMan2 1 year ago
@nickademuss42 technically you can. you can power a transformer including a Tesla coil with pulsed dc that can be aqwired with a spark gap. the problem you would get is it not creating a strong magnetic field because of its low amps
MrStemkilla 4 months ago
I saw how the generator was built on the instructables, but i could not see all of the steps because i was not a member is there any way that you could get a video of the insides and how it is all set up? thanks
tikifish28 1 year ago
This has been flagged as spam show
hi i really like your quality work in putting that thing together, i am almost done building mine, since yours is doing a good job in producing good voltage i was just wondering, i read somewhere that said it is better to put the brushes on the side where the belt is rolling away or off from the roller, does this matter or do you know which side works better to put the brushes at and can i put brushes on both sides of one roller to make it more effective, or to eliminate guessing??
hadabeesago 1 year ago
is it possible to use a vandi graff to power a tesla coil?
ubuntupokemoninc 1 year ago 3
Good creative thinking, but the coil would be so small it wouldn't produce arcs nearly as long as the van de graaff, since the capacitor in the resonant circuit (the sphere insulated from earth) has such a low capacitance. A transformer is much more practical to charge a capacitor to run a tesla coil. Van de graaff output concerns coulumbs and joules of stored charge. You can probably use VERY large sphere/leyden capacitors to increase capacitance, but that means VERY slow charge/discharge rate.
backwoodsBrophil 1 year ago
@ubuntupokemoninc absolutly not, the current is too small and the voltage too high
phikre 1 year ago
@ubuntupokemoninc also consider that its not an alternating current and since a tesla coil is a type of transformer it needs very high frequencies to work.
flagman57 1 year ago
@ubuntupokemoninc No, it isn't
RadecekJezecek 1 year ago
@ubuntupokemoninc nope
thewii552 1 year ago
@ubuntupokemoninc Heh.
No.
Serostern 11 months ago
@ubuntupokemoninc No way in hell.
Serostern 10 months ago
@ubuntupokemoninc no
thewii552 8 months ago
@ubuntupokemoninc
not enough power
wow1022 8 months ago
I am making a van de graaff generator, how should I ground my bottom brush?
AHW214 1 year ago
@AHW214 You should attach the bottom brush to a metal pole with a handle so you can draw big arcs from it.
TheNuclearWatermelon 1 year ago
can u touch that?
LunazCorp 1 year ago
If that where actually 900,000volts you should be getting sparks almost 3ft(1 meter) long not 7-8 inches(20cm). that is only around 150,000volts.
morganhv 2 years ago 6
That's 883,920 volts by the calculator or 4350 volts per millimeter. At 27 Miro amps, The 1ft sparks it has generated are to faint for my camera to pick up, but you can sure feel them.
nickademuss42 2 years ago
@nickademuss42 realistisch sind 1kv per millimeter
feisch1 1 year ago
@nickademuss42 Mine will hit you from 3 to 4 feet away but my camera won't catch it either. It will make your arm spasm and leave blisters on your skin, light a 4 foot fluorescent bulb 6 feet away and make plants on the ground glow in the dark from the plasma jets if you don't discharge it.. It put a 6 foot streamer to my TV the first time I fired it up in the house, I'll never do that again. LOL without the sphere and running at top speed it will make the hairs on your body stand up from 3 feet
adeptuslux 1 year ago
@adeptuslux It's amazing what a drill motor, 2 pieces of PVC, a nylon high pressure hose connector, an old 12 inch plastic globe covered with aluminum duct tape, 4 old bearings from burnt out bathroom exhaust fans and some flagging tape will do if put together correctly. The hardest part was shaping the rollers so the belt would stay on at 500,000 rpms. Just kidding, but it is fast. Fat rollers to separate the belt is a must to reduce power loss on the way up the tube. Fun for the feeble minded.
adeptuslux 1 year ago
@adeptuslux My one in progress has three large belts feeding a propane tank 8 feet from ground. It has a phi based wind turbine that turns faster than the wind speed that I designed to turn the belts and charges a 5 gallon bucket Leyden jar 5 feet from ground. My proprietary shaped semi-sphere will make a streamer that draws energy from the ionosphere and the design (sans wind turbine) will eventually power my GONAD, Gyromagnetically Operated Nullgravity Air Disk. Bite me DARPA! It's mine! LOL
adeptuslux 1 year ago
@adeptuslux Are you kidding about the fat roller being a must? Mine was shooting a 10 inch spark until I changed the top roller from 2" PVC to 1.25" teflon and the bottom roller from 1.625" nylon to 1.100" nylon and now I get 1 to 2 inch sparks... What the hell is going on? I expected it to be better when going to solid teflon top roller and solid nylon bottom roller but ,NO. I changed the bottom roller because it WAS PVC covered by nylon tape. Now I can only get about 2 inches. Thanks Keith
keithecampbell1 1 year ago
@nickademuss42 how can you calculate that big voltage?thanks
mhytbuster52 1 year ago
@nickademuss42 it is 1000 volts per millimeter. Trst me on that one.
thewii552 8 months ago
@morganhv no it is probibly over 900,000 because its at such a amperage it can not energize the air like a transformer but its is definitely 900,000 or more
MrStemkilla 4 months ago
@morganhv actually 1 inch of arc is about 50,000 and his looked like it was 5 inches away so that,s 250,000 i think but i could be wrong because i dont knaow for sure how many inches the arc travled
doublebubleguy12 1 month ago
Still, your question was not very accurately asked... Ordinary laser beams cannot ionise air. One needs a lot more power per square meter to do that. I guess I did not consider what would happen if one uses a high-power one. Could you please tell me of "non-lethal weapons based on the very same principle". If a laser is harmless, I think it won't be able to ionise air? Prove me wrong, please!
LoveGeronimo 2 years ago
Would a LASER channel the voltage if you fired a beam at the collector?
redmistpete 3 years ago
No! Lasers are just electromagnetic radiation.
Will a sun ray channel the voltage, if you pointed it at the collector?
LoveGeronimo 2 years ago
YES - they do actually! There are non-lethal weapons based on the very same principle. A high power LASER will create an ionic/polarised path for an electrical charge to be dissipated (for example lighting jumps through air (a dielectric) even though air is normally an insulator, purely because the energy is comparatively large. This jumping DOES occur, it's just a question of voltage - My query was just wondering if 900,000 volts is anywhere near enough to jump down a LASER beam or not.
redmistpete 2 years ago
Even without a collector, if there was "enough" voltage, it would arc out (following the path of least resistance). Anyone walking close to it (I presume) would then act like a collector and draw the voltage into themselves. The polarised path created by a LASER is a path which has less electrical resistance than the surrounding atmosphere because the ions are aligned. So by directly firing a charge into it (whilst pointing it at a collector/person) the charge is channeled and dissipated.
redmistpete 2 years ago