Van de Graaff generator

[@letropchiant]

I dont know why 20 people unliked your video, this is probably the easiest homemade van de graaff generator I have seen.

[@electricandmagneticfields2314]

Thanks!

[@fortunatoparisi4739]

The best explanation of the Van de Graaff I have seen. Thank you. Fort.

[@hmarillejla7]

Fantastic...This shows how good a teacher you are contrary to some I've already watched!!!

[@electricandmagneticfields2314]

Thanks for the kind comment!

[@MrCpolzin]

I couldn't agree more.Brilliant were my thoughts and thank you so much for sharing in such a simple and wonderful way.10 out of 10 easily :)

[@justlearning8475]

Excellent description of the working process of electron movement and ionisation energy. I really liked the clear and informative presentation. I wish I was one of your students.

[@electricandmagneticfields2314]

Thanks for such a nice, kind comment!

[@matthewkleinmann]

This is a very clever construction. Thank you for posting it.

[@scottm4267]

Another winning presentation..thank you professor

[@electricandmagneticfields2314]

you are welcome!

[@boogieknee3781]

Yay. A.straight to the content.No begging for likes/etc.. B.Great simple audio. C.Clear diction from the presenter throughout D.All the bits laid out so we can see what is being used and assembled in realtime. .....😺even my moggie was watching. well done.

[@electricandmagneticfields2314]

Thank you so much for your kind words!

[@ryancl03]

Very good explanation. Thanks for the quality video!

[@gabrielbaines761]

Thank you for all your help, it has been much appreciated

[@electricandmagneticfields2314]

Bowtie, I accidentally removed your comment, so I don't remember all you asked. One that I do remember is using aluminum and teflon instead of glass and rubber. The advantage of the aluminum and teflon is that it would be more robust. My glass tube is always cracking and needing to be replaced.

[@physicsgurumsr]

What a practical approah sir ,books should be updated as such

[@justraja100]

Very nice practical and theoretical demonstration. Lovely.

[@electricandmagneticfields2314]

Thank you for your kind words.

[@Niasar]

Thanks for you great illustration. I think the breakdown strength of air (dry) is ~ 32 kV/cm

[@electricandmagneticfields2314]

+Mohamad ghaffarian niasar You are correct, I say 10 kV/cm in the video for the dielectric breakdown strength of air and it is actually about 30 kV/cm for dry air. I haven't found consistent data regarding the effects of humidity on breakdown strength. But it was during our humid summer that I made that video!

[@Team_AstroCoders]

Can we replace glass rod on upper roller with nylon tape only like the 1st roller Will it still work

[@firegiy1793]

love it best accuse best Triboelectric series

[@firetip198]

For a negativly charged van de graff... use silicone rubber for the top roller and a ptfe or teflon for the bottom roller.

[@MegaTechno]

Can I use a bowl or 2 metal bowls for the top? Great video BTW!

[@electricandmagneticfields2314]

Yes you can thanks!

[@csi228]

hey its very good for the glass tube is acrylic good too?

[@kerrspencerbatac1408]

Can i have some alternatives on the rubber band. What do you suggest. It is okay to used an electrical tape as substitute

[@faithgelig3639]

Can this produce enough static energy to attract dust or other similar materials and make it stick for at least a few seconds?

[@electricandmagneticfields2314]

Yes

[@Needless2say]

So I was playing with a Van degraaff generator 40 years ago ( and the discharge spark was about 11 inches) I put out my fist and let it discharge on the tip of my (bird finger) knuckle about 8-10 times and the next day I had a water blister 1/4" x 1/4" in the same spot. I guess the spark made quite an impact.

[@electricandmagneticfields2314]

Wow, fortunately that didn't happen to me. My generator probably was developing less charge than the one you were using.

[@bonger975]

Built this with my kid now he wants to be a sith lord

[@electricandmagneticfields2314]

It is great that you built this with your kid! That should spark an interest in science!

[@vitoripa8033]

Great Explanation Prof. Melloch. I have a concern about the role of the teflon in the bottom.Do it produce an acceleration of the electrons missing to the ground?

[@outinpierre5557]

Sir, where did you find the motor please ? I try with a friend to make a van de graaff generator, thank you

[@kq6up]

Just wondering why the brushes can't touch the belt. It seems like it would be the same function if it did.

[@electricandmagneticfields2314]

Eventually they would not touch because the wire would scratch off the rubber. Similarly there would probably be pieces of metal on the belt. It would be interesting to try and see what happens for sure. Whenever I try an experiment I usually get surprised! I'll try it next time I get a chance.

[@kq6up]

@@electricandmagneticfields2314 thanks for responding a decade after the production of the video. I was thinking of making a tiny one to charge an electroscope for gamma ray detection.

[@electricandmagneticfields2314]

@@kq6up That should work. I have used a Van de Graaff generator to charge a leiden jar capacitor, kzbin.info/www/bejne/gpmZinSKntmBb80

[@Xa15Sci0]

Can I use an acrylic tube instead of a glass tube?

[@davidordonez8964]

Can the metal dome be stainless steel?

[@electricandmagneticfields2314]

yes, any conductor

[@davidordonez8964]

Please sir, I’d really appreciate your help, I’m having troubles with my Generator, any source where I can send you in a video of it, please, it’d be such a help for me

[@haydenrozario7321]

could you plzz tell the measurements of the pipes and wires and what batteries have you used

[@electricandmagneticfields2314]

I took fuses, heated the ends to pull the caps off as the glass pipes. Any wire would work and the batteries are just anything that will turn the motor. The faster it turns the quicker it would charge up. For this one I used two AA batteries.

[@haydenrozario7321]

@@electricandmagneticfields2314 thnxx alot dude this is so easy n awesome to make

[@haydenrozario7321]

could i use a thick hairband instead of the rubberband?? as idk y but its not available in my area

[@electricandmagneticfields2314]

@@haydenrozario7321 It probably would work. Any dissimilar materials in contact will result in charge transfer.

[@electricandmagneticfields2314]

@@haydenrozario7321 Thanks

[@thakyou5005]

You sir must be a teacher. I learned stuff without paying much attention! (I like watching videos while cooking etc)

[@electricandmagneticfields2314]

I am glad you learned stuff from my video! That is why I do them.

[@thakyou5005]

@@electricandmagneticfields2314 I wish I knew about your channel when I was in Highschool 😅 (8 yrs ago)

[@electricandmagneticfields2314]

@@thakyou5005 Thanks, better late than never!

[@louiemaeempinado5886]

Does the width of the rubber band matters? Does it have to be really thin or flat? Or a bit thick

[@electricandmagneticfields2314]

I don't think the thickness will matter. The wider the more contact between the rubber band and the glass and the more total charge.

[@phantoker]

Can it also work if the rollers are made of Teflon and paper

[@electricandmagneticfields2314]

Any material for the rollers will work as long as it is a different material from the band. Of course the further apart the two materials are on the triboelectric series the better it will work.

[@gabrielbaines761]

Could you use anything other than a glass tube? Thank you.

[@electricandmagneticfields2314]

yes for instance some commercial Van de Graaff generators use aluminum and teflon instead of glass and rubber. The advantage of the aluminum and teflon is that it would be more robust. My glass tube is always cracking and needing to be replaced.

[@SteveEwan-o8i]

was the glass tube stationary or was also spinning?

[@electricandmagneticfields2314]

The glass tube turns, so there is contact between the glass and rubber band but not friction. It is the contact between the glass and rubber band causing the separation of charge.

[@SteveEwan-o8i]

@@electricandmagneticfields2314 ohh i see, thanks

[@pwdsubpathanamthitta9661]

You are a good teacher

[@electricandmagneticfields2314]

Thank you for the kind words!

[@that.ucurlele.gal7]

Sir, I did all the procedures but the rubber band doesn't move. I tried to give it a push too, but it didn't help. Can you give me an alternative to the rubber band?

[@electricandmagneticfields2314]

I would stick with the rubber band and figure out why you cannot get it to turn. Does your glass tube spin easily when you do not have the rubber band on it? If so, maybe too much tension from the rubber band? Could you move the motor up a couple of millimeters?

[@nardeen6593]

Can I use plastic tube instead of glass? plz answer cuz my project is going to be tomorrow and thanks a lot

[@electricandmagneticfields2314]

The bigger the separation on the triboelectric series between the tube and rubber band the better it should work. The bottom wire is grounded.

[@electricandmagneticfields2314]

I do not know how well plastic would work.

[@nardeen6593]

Ok thank u and sorry for disturbing.

[@electricandmagneticfields2314]

No problem, I am happy to answer questions when I can.

[@Xlr8er2]

So.. did it work? Your project I mean : )

[@gabrielbaines761]

Sir I am trying to make a Van De Graaff Generator but my motor isn't strong enough to turn a stretched rubber band, what do you suggest I should do? Thanks.

[@electricandmagneticfields2314]

Sometimes these toy motors will run if you can just get them started. Can you give it a little push and see if that gets it turning?

[@mintudoku9375]

Sir with some set up..... can this power up home

[@electricandmagneticfields2314]

You can generate a high voltage, but the corresponding charge is small. So it would not supply much current. Not practical for producing electricity to power a home.

[@Slabbit]

Does the top need to be glass? I’m trying to build one without it and was wondering what to use.

[@electricandmagneticfields2314]

No it can be a different material, but the further apart on the turboelectric series between the rubber band and roller the better it will work.

[@ipsitpathak]

im making one, but i have a motor which is very very very slow. its a lego motor. Will it still work?

[@electricandmagneticfields2314]

It will work. The charge will just build up at a slower rate.

[@shyamsundershukla7221]

Sir lz provide me the list of material used with each n every specification of every material....

[@electricandmagneticfields2314]

+Shyam Sunder Shukla I don't really have any specifications. At the beginning of the video I show all the parts I used. The main parts are some PVC pipe I got at a hardware store, a toy motor, an empty soda can, a rubber band, a glass tube, some wire, and a battery holder. The glass tube is probably the hardest to obtain. I have done the glass tube in two ways. Taking the ends off a glass fuse and scribing and breaking a pipette.

[@vickyrana9579]

sir is this a DC motor..you use in the model.? and earthing is necassary? if yes how can i do that?

[@electricandmagneticfields2314]

Yes I am using a DC motor to turn the rubber band. Grounding is necessary and I held the wire and acted as the ground in this demonstration.

[@vickyrana9579]

sir i wanna to make a working model on this thing so how canuse this ?i mean how can i earth it for my prjct

[@prestonwarren2692]

I was wondering if a rubber band would work for this it's weird that this video randomly popped up...

[@electricandmagneticfields2314]

Yes, that is what I used a rubber band.

[@jinkalchetwani2907]

can u suggest any other thing instead of dat rubber band?

[@electricandmagneticfields2314]

You could purchase a replacement belt for a commercial van de graaff generator, www.arborsci.com/van-de-graaff-replacement-belt?gclid=CjwKEAjwm8-6BRDgnb-Dk96UmRASJADbMycYbaKfAwelDba3mFuhuSxsY177fEfvUvPx6mg0iBFYxRoCHYTw_wcB

[@amazingbrooroblox2127]

I used a solar panel for this.... it dosnt die until the sun goes kabooom ;)

[@gabrielbaines761]

Sorry for bothering you again but does the grounded wire actually do anything? Thanks.

[@electricandmagneticfields2314]

Yes it does. It pulls electrons off the outer surface of the rubber band. Otherwise the negative charge would build up on this outer surface and stop anymore electrons from transferring from the metal can to the outer surface of the rubber band.

[@christellesy8351]

uhm sir what did you use for grounding the van de graaff?

[@electricandmagneticfields2314]

I acted as the ground. I was holding the ground wire.

[@cakescivs3531]

Sir, i have followed the procedure step by step. But still there isnt any charge being produced on the can what so ever. What may be the problem?

[@electricandmagneticfields2314]

It does not work well if conditions are humid. Has it been humid when you have tried it? I find it works much better during the winter, when conditions are dry, compared to during the summer.

[@dawsonfrancis1861]

is there a way to measure the voltage coming off the can to ground?

[@electricandmagneticfields2314]

+Dawson Francis Since there is so little charge on the Van de Graaff generator, you need to use an electrostatic voltmeter. The principle of operation of the electrostatic voltmeter is like that for an electroscope kzbin.info/www/bejne/aobRmJquhbt2j9k I found a youtube video doing this measurement, kzbin.info/www/bejne/m6DKoXp-e8yJbKc

[@dawsonfrancis1861]

Thank you, I have it built but I am not getting any charge on the soda can. the aluminum foil strips don't move and I do not get a shock from it.. What can be my problem?

[@electricandmagneticfields2314]

+Dawson Francis The first time I built mine it did not work. I cleaned everything with isopropyl alcohol, rubbing alcohol that you can purchase at a drug store, and got it to work. I also wore latex gloved when I cleaned everything and assembled it. It is possible that just a little grease from your fingers is enough conduction to drain the small amount of charge that builds up on the can.

[@Klunkiez]

Sir what did you ground the bottom wire to?

[@electricandmagneticfields2314]

By holding it in my hand, I was the ground.

[@Klunkiez]

Can you help me? I can't get mine to work. Especially now because this is my project and its due tomorrow. Please help

[@KosuriVenkatesh007]

sir i have a doubt is wire touches the belts which is connected to motor

[@electricandmagneticfields2314]

The wires, the one at the top near the glass tube and the one near the bottom by the motor, do not touch the belt--there is a small gap. The wire at the bottom is the ground. The ground wire does not have to be positioned at the bottom, it just needs to be away from the positively charged glass tube at the top.

[@muhdhilmi6864]

How many volts are you using on the motor?

[@electricandmagneticfields2314]

+muhd hilmi 3 volts, two AA batteries in series.

[@muhdhilmi6864]

+Michael Melloch ok thanks

[@chasetramble2087]

does the tube have to be glass? and if so where would I find one?

[@electricandmagneticfields2314]

+Chase Tramble You want the band and tube to be as far apart as possible on a triboelectric chart to maximize transfer of electrons. Rubber and glass work well. You can obtain a glass tube by taking the ends off of a glass fuse by using a soldering iron to melt the solder holding the metal end caps on the glass . You can also get a pipette, scribe and break it, to get a glass tube. I have used both.

[@chasetramble2087]

+Michael Melloch thank you very much. have a nice day and have a merry Christmas!

[@muhdhilmi6864]

where you got the rubber band like that?

[@electricandmagneticfields2314]

+muhd hilmi www.amazon.com/Alliance-SuperSize-Resealable-Containing-Inches/dp/B0017D16PW/ref=sr_1_1?ie=UTF8&qid=1463573467&sr=8-1&keywords=large+rubber+bands

[@muhdhilmi6864]

if possible if im replace the glass tube with iron tube?

[@generalsc4r376]

can I place this underwater??? will it still give off an electric current??

[@electricandmagneticfields2314]

If you are thinking of having it upside down with the soft drink can in the water you would have a current. The charge would not be able to accumulate on the soft drink can, it would just conduct away because of the water. The current would be very small. If instead of a soft drink can I used a small metal sphere of radius 9 cm, the capacitance would be 10 pF. (The capacitance of the soft drink can would be similar.) So charged to 10,000 V there would only be 1x10 e-7 C on the sphere.

[@lakshyalalotra4915]

In another video they say brush must touch band?? Who is correct

[@electricandmagneticfields2314]

The brush is definitely not touching the rubber band in mine and it works.

[@lakshyalalotra4915]

One more thing sir I want to charge Leyden jar with 30kv can I use it

[@electricandmagneticfields2314]

What will limit the voltage is the dielectric breakdown of the insulator between the two conductors. I would think you could get to 30,000 volts with a Leyden jar like the one I used.

[@lakshyalalotra4915]

Michael Melloch so should i make 30kv van de Graff generator, to charge Leyden jar and how could I charge it effectively, I want high voltage to power up my ball cyclorton Thanks for replying sir

[@electricandmagneticfields2314]

It looks like you could just directly connect your van de Graaff generator to your ball cyclotron, kzbin.info/www/bejne/bHWWk4CMq5yqa9k

[@learntogether223]

What happens if The brush and rubber band touch each other while the motor is working?

[@electricandmagneticfields2314]

+Ronnachai Mita When I get a chance I will try that. I think it should still work, at least initially. Eventually the wires scraping on the rubber band will scrape away enough rubber that you might have a gap and an insulator on the ends of your wire. Then it will probably stop working.

[@ashwinkawade5861]

Wat can we use instead of small glass tube?!

[@persoperson7114]

the glass tube from a small fuse works well

[@boogerking7411]

Will this work in a vacuum of theres no N2and O2?

[@electricandmagneticfields2314]

For the configuration I have, where the can becomes positively charged, the electrons from the can could still emit from the frayed wire end, where the electric field is high enough to pull electrons off the wire tips, and transport through the vacuum to the outside surface of the rubber band. The problem in a vacuum would be at the lower end where the electrons are removed from the outside surface of the rubber band. The frayed wire at the bottom is positively charged and this is where the high-electric field is. So N2 and O2 molecules are needed to supply the electrons because they have to be in the high-field region of the frayed wire. The field on the outside surface of the rubber band will be too low to pull electrons off the rubber band.

[@Leah-ep3wh]

Hello! I wanted to know the sizes of the pvc you used. Thank you :)

[@electricandmagneticfields2314]

The diameter of PVC pipe in this video is 3/4 inch. I have also built them using PVC pipe of 2 inch diameter.

[@Team_AstroCoders]

Sir what if the wires touch the rubber will it still work or not ?

[@electricandmagneticfields2314]

I am not sure, you will probably get microscopic pieces of metal on the rubber, but not sure what effect that will have.

[@enzomomelis]

I can substitute the rubber band for what?

[@electricandmagneticfields2314]

+Marcouelber do Amanhã Anything that can roll on the glass tube by coupling to the motor and resulting in charge transfer between it and the glass tube.

[@enzomomelis]

thank u

[@jinkalchetwani2907]

sir from did u get d glass rod?

[@electricandmagneticfields2314]

I scribed and broke a pipette. You can also use a glass fuse. If you heat the ends of a glass fuse with a soldering iron you can pull off the metal caps.

[@jinkalchetwani2907]

thanks sir

[@parveenmakkar5939]

hey sir where the charges came from in rubber band

[@electricandmagneticfields2314]

They are electrons that come from the soda can leaving the can positively charged. At around the 11:00 point in the video I start to talk about this.

[@KosuriVenkatesh007]

where u connect ground

[@electricandmagneticfields2314]

I was holding the ground wire, so I was acting as the ground

[@BscPhysicsRGLectures]

@@electricandmagneticfields2314 thanks

[@lakshyalalotra4915]

My motor Axel is so small how could i increase it it tried many ways but its breaking everytime, one more thing can i use food can instead of soda can that of tin or aluminium

[@electricandmagneticfields2314]

Yes you can use any metallic structure such as food, soda, paint, etc. can. For me it is the glass tube that breaks often.

[@leelavathisivakumar3815]

Sir .how much volt does it need for the initiation sir. ...

[@leelavathisivakumar3815]

Sir ...please answer my question.sir....i did this but I didn't get any charge...??? Sir

[@electricandmagneticfields2314]

I don't understand what you are asking. To initiate what? A spark?

[@kerrspencerbatac1408]

Can you please help us. We do all your procedure and steps but it didn't work what would be the problem?

[@electricandmagneticfields2314]

It doesn't take much leakage to prevent the charge from building up. Was it humid the day you tried? Make sure the material your can is resting on is highly resistive.

[@kerrspencerbatac1408]

What do you mean by hughly resistive

[@kerrspencerbatac1408]

Right now is rainy day, so i therfore that the environment is humid.

[@electricandmagneticfields2314]

For instance you might think wood is an insulator, but there can be enough surface leakage, especially if it is humid, to drain the charge off faster than it can accumulate.

[@eromarap0613]

Please explain briefly.

[@pwdsubpathanamthitta9661]

Can we put anything except rubber band

[@electricandmagneticfields2314]

You can use other materials. The farther apart they are in the triboelectric series the better it will work. www.keyence.com/ss/products/static/resource/feature/property.jsp

[@rahulbiswas6302]

Where are you join 1 wire?

[@electricandmagneticfields2314]

i'm sorry, I don't understand your question?

[@WesleyRTech]

Will this make your hair stand up when you touch it? Will it hurt you if you touch it?

[@electricandmagneticfields2314]

I have not tried, but it should make your hair stand up. It does not hurt, you can barely feel the spark. The reason is the capacitance is low, so even at 10,000V the amount of charge is so low you barely feel it.

[@rajeshsangwan7183]

if we don't use the motor then it work or not

[@electricandmagneticfields2314]

You need to turn it somehow. So it would not work without the motor. You could use a hand crank if you do not have access to a little toy motor,

[@MatthewPicou]

This is very week,but I have to say. The lower brush is a big deal

[@bobbylong4443]

😊😊 cool

[@electricandmagneticfields2314]

Thanks!

[@sridharkonduri4523]

Amazing!!!!

[@circleignis3484]

What are the materials?

[@electricandmagneticfields2314]

Any piece in particular? PVC tube, toy motor, rubber band, metal rod, glass tube that can fit over the metal rod, some wire, a soda can, and a wooden base to which I glue-gunned the PVC base.

[@circleignis3484]

Michael Melloch Thanks!!

[@TheRealKalEll]

Simplify !!! Plus: the real Van gennie had 3 one way caps inline and 2 spark gaps: small gap on top large gap and balls on bottom fyi. Also...lol, the REAL Van Gennie never had a motor it used gravity.

[@electricandmagneticfields2314]

Kelvin's electrostatic water dropper generator used gravity, kzbin.info/www/bejne/j2iwe5WQic9-r9E and was the inspiration for later generator's like Van de Graaff's. In fact Kelvin suggested the use of a belt. Van de Graaff's first generator used a motor, web.ihep.su/owa/dbserv/hw.part2?s_c=VAN+DE+GRAAFF+1931

[@TheRealKalEll]

Michael Melloch: your first address is incorrect. Takes you to Google Accounts sign in

[@TheRealKalEll]

Michael Melloch: also what you might detect like I did with both Tesla's public "patents", (LOL and I laugh because the patent office is SOOO CORRUPT IT SHOULD BE A CRIME OH WAIT IT IS) and Graff, as well as Marconi, is that subtle changes have been made by either them or an imposter. Why, easy: for some reason the general public is being hidden from zero point and magnetic free energy, not to be confused with electromagnetic or generated energy this is so much different. Reference Ralph Ring consciousness and eather technology, You Tube, as one example IF YOU can understand it like we do.

[@TheRealKalEll]

Michael Melloch: re Van Dur Graff. Yes, but illuminate the motor and transformer and ONLY THEN do u have Graffs ORIGINAL zero point energy device. Somehow, I suspect military tampering, his ideas have been altered in such a way where they now need an external power source to make any of the devices operate. Well, they were not originally designed that way in fact someone has altered most of them, someone with a LOT of resources. Same with Tesla Marconi Edison etc. Like the saying goes: DO NOT BELIEVE EVERYTHING YOU READ on the Internet.

[@electricandmagneticfields2314]

I fixed the link

[@TheRealKalEll]

Neat video tho

[@rahulbiswas6302]

What are you use to give charge?

[@electricandmagneticfields2314]

I don't understand your question.

[@Thirushan888]

Thank you so much

[@solanaledesma7953]

Disculpen alguien podría decirme que materiales se necesitan en español

[@ekjdo]

SUPONGO QUE ERES NENA POR TU NICK, MI VIDA TE SUGIERO QUE BUSQUES LOS MATERIALES EN ESPAÑOL B USCALOS EN SAN GOOGLE CUIDATE NENA

[@mistytorres9138]

Lista de materiales Lata Baterias doble A Cables de cobre( bolsa) Tubos de PVC Conecciones de PVC Motor simple Liga Cinta de teflón Cinta negra Rollo de aluminio Una varilla pequeña Cartón Caimanes electricos Portador de Baterias Madera

[@____.__._.._]

6:51 Phhew no spark

[@lakshyalalotra4915]

What can i use other than glass tube

[@bencaithamer2477]

Try a fuse?

[@Klunkiez]

I cant get mine to work can you please help me?

[@electricandmagneticfields2314]

Any leakage can prevent charge from building up. Clean everything with isopropyl (rubbing) alcohol. Wear latex gloves so you don't get anything off your fingers which would be conducting, on any of the parts.

[@parveenmakkar5939]

please tell us

[@rarely_social]

Why does humidity affects the working of generator?

[@electricandmagneticfields2314]

Humidity will cause moisture on surfaces. Even surfaces of insulators like, wood, cardboard, PVC, etc. will become conducting. The result is that charge will flow off, such as charge on the can in my generator, before it can build up.

[@abhishekschaudhary4180]

Very Pleasing Project Sir ! Can u tell the proof that is really 10000 volts being produced ? I need it for my Science project . Thank u in advance...

[@electricandmagneticfields2314]

In the video I incorrectly quote the breakdown strength of air as 10kV per cm. It is actually 30kV per cm. Of course it probably depends on the humidity being lower as the humidity goes up. So breakdown occurred when my finger was about 1 cm from the can. If the electric field was uniform between the can and my finger, which it isn't, that would translate into a voltage of 30kV. So I think an estimate of at least 10kV is correct.

[@sairambingiyt]

super

[@pwdsubpathanamthitta9661]

I planed to make this

[@pwdsubpathanamthitta9661]

I have a project in my school

[@rajeshwarin5631]

Hello Sir,I have few doubts regarding the video.If you can provide your email-ID,it would help me to clear my doubts.

[@carlsansfacon3990]

30kV per cm

[@electricandmagneticfields2314]

yes

[@sarahkayelopez2010]

good i will do that..

[@QureWz]

thx

[@firetip198]

ok great! now the human body is 60 percent water... so when a hydrogen molecule looses its only electron it just becomes a proton. this accumulation of these protons is acid. acid chemestry is just as important to good health as is base chemestry, however an over accumulation of hydrogen molecules that have los their only eectron can cause an imbalance in our body chemestry. known as pH or poential of hydrogen. pH is the measurement of the chage balance in our body fluid systems... or the potential of the hydrogen molecules. the scale runs from 0 to 14 in base 10 with 0 or something very near to 0 being very acidic and or a very large accumulation of hydrogen molecules that have lost their only electron... or acid and 14 being very caustic or and accumulation of molecules that have extreemly large numbers of accumulated electron charge. by observation pure electron charge is benifical to the body as is north pole magnetism into the skin and pure proton or positive charge is not so benificial to our fluid chemistry systems for the above explained reason. the standard american diet tends to be proton heavy or acidic... to much over prossed foods which acidify our body chemestry. cookies, cake, candy soda pop, processed white flour, ect... causing an acid imbalance in our body chemestry. so to make a vdg generator that produces an accumulation of electrons at the top dome is much more benificial than a vdg generator that accumulates extra proton charge at the top load. for more detil see thomas kim channel on how to make both a positive or negative vdg and also google pyroenergen for more indepth look into the health benifits of negative static charge. also the importance of earth grounding here on yt and the www. its best to get our energy from nature and from vitalized food not from some electro mechanical device... polyphenols are fancy electron donors in fruits and vegtables and earth minerals are also important electron donors to keep our cells running at their peak operating voltage.

[@shubashilpa]

I want. This

[@Kuri2x]

i can make this with no bottom brus

[@marigolden4458]

U sound like trump

[@electricandmagneticfields2314]

It is just a motor out of a toy, like this one, www.amazon.com/SODIAL-12000RPM-65g-cm-Electric-Hobbies/dp/B00TO7IF8O/ref=sr_1_5?ie=UTF8&qid=1444820128&sr=8-5&keywords=toy+electric+motor

[@outinpierre5557]

+Michael Melloch thank you for your answwer