high voltage

Posts Tagged ‘high voltage’

$2 Van de Graaff Generator

Van de Graaff generator from found parts and a $2 M&M'S candy tin

Van de Graaff generator from found parts and a $2 M&M’S candy tin

When I was a little boy I was fascinated with static electricity and played a lot with sparks and attracting little pieces of paper to a plastic comb brushed through my hair. The comb was later replaced by an ebonite rod, also brushed through my hair, which my mother, a school physics teacher, brought home. It was great fun but brushing one’s hair gets old quick and, perhaps more importantly, some 30 years later it’s become crystal clear to me that human hair won’t always be so readily available for my static electricity experiments. Unless someone else volunteers theirs. And so it has become obvious: I needed to break my dependence on human hair as the source of high voltage energy! :)

Robert Jemison Van de Graaff to the rescue! His ingenious generator, developed in 1929, appeared to be a perfect replacement of the hair/comb generation technology, and it looks super cool doing it, too, with its tall column and a shiny metal sphere at the top! So, finally, some 30 years after I first read about Van de Graaff, I decided to take action and here is what came out … Read the rest of this entry »

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Recent Comments
  • admin: Hello Gul, thank you for stopping by. It is hard to say if this circuit is more appropriate or not. I came up...
  • GUL MUHAMMAD: Hello sir, I working on project titled LASER ENGRAVING MACHINE. I want to ask that whether this circuit...
  • GUL MUHAMMAD: hello sir, Here is the link: http://funofdiy.blogspot.co.uk /2013/10/a-raspberry-pi-con...
  • GUL MUHAMMAD: Thank You so much sir.
  • Alex: Greetings from Los Angeles, Thank you so much for you review, sample codes, pictures, etc. I am an Arduino fun,...
  • The Lightning Stalker: I also forgot to mention to take ESD precautions and use laser safety glasses. Welding masks...
  • The Lightning Stalker: > is dvd RW laser is capable enough to engrave wood and acrylic? Black acrylic yes, other...
  • GUL MUHAMMAD: Hello sir, I am working on project titled LASER ENGRAVING MACHINE, i have few some problem to discuss....
  • The Lightning Stalker: At 2.5Ω, that is 1.25 / 2.5 = 0.5A. That is 500mA, not 220mA. I don’t know where you are...
  • lokthelok: Hey, Dokta. I recall having similar issues when I was playing with this. Though it was a long time...
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