Van de Graaff Generator Twins (Positive and Negative)

This is Positive(Left side) and Negative(Right side) Van de Graaff Generator experiment.

Negative Van de Graaff is consist of Polyethylene Terephthalate(Bottom roller) - Polypropylene(Belt) - Polyvinyl chloride(Top roller)

[kidbk]

Nice output from a coke can collector. Super cool opposite polarity build. Thanks for sharing.

[jg]

How did you get one to be Positive and the other Negative?

[ajanki]

I like that positive and negative polarity detector you have because when I was in college I was taking the introductory physics course and one morning a technician was working on the ceiling  lights. He had what looked like a mini light sabor and ti was showing him which directions the currents were flowing in the light circuit in the ceiling.
I forgot to ask him where he bought that device and what it was called. But you, my friend created a more primitive version of that technician had. But, I don't say "primitive" in a condescending way. His device would show you the direction that the current was flowing when the LEDs that made up the blase portion of his little light sabor would ripple in one direction and then when he flipped the device it would ripple in another direction, showing you the same direction the current was flowing except that the sabor was flipped. He would run the sabor device up and down the lighting installment in the ceiling but he would go over the wires and the LEDs would illuminate the ripples indicating the direction of the current flow. I think you device could be expanded to show the direction of current flow. I know it shows polarity and the currents in a wire induce a magnetic field and thats probably how his device worked, but can't you make the device more sensitive so that it could detect the charges on wires. I don't know, I need to mull this over in my mind for a bit. Anyway, love your science stuff.
Thanks

[nrokpop]

Try to use the outside to spin lime a alluminum ring around the both two see if you can make it spin from opposite poles

[yryskeldianarbekov]

how did you do this, Please explain in other video.

[lalithnadh]

Bro what are the materials used for top roller and the bottom roller???

[daraastrid]

Awesome! how to make this step by step then?

[andyjones]

Why did you chose 3 materials right next to each other in the triboelectric series (all negative) instead of using glass, etc? Obviously it still worked. It doesn't matter?

[nielsdaemen]

1:22 Will this work on the positive one too?

[LauraPerez-xpub]

hi thomas, im doing this proyect for the university and need to know what is the material of the conveyor band  ;D

[TechnoWzard]

How do you make the electrostatic polarity indicator?

[Kalashnikolor]

thomas, are you positive or negative?

[zdayz]

but how do the potpie tins react on the other side?  Even if it's no reaction it would be nice to include :)

[rajendrasinghsingh]

ye aapne kase bnaya h please btaiye na 😔😔😔

[sahilsihol]

can we check how much voltage 'tis building up?

[ksz]

안녕하세요.
전 상, 하단의 롤러는 테프론 테잎, 알미늄테잎으로구성했었고, 벨트는 일반벨트로했는데도 안됩니다..

positive와negative는 각 상, 하단 롤러와벨트는 어떤것을사용하셨나요?.
제것이 왜 안되는지가 미스테리입니다.ㅠ

[skycollection]

Do you have ALUMINIUM & PLASTIC ROTORS....? i have a van derr graff generator and i have this configuration, aluminium & plastic resin but i don´t have polarity detector....!

[enriquecarmona]

great job on the presentation, but the backgound noise... man, had tobturn off sound. 😀

[rpdigital]

So which one hurts more? Positive or negative?