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Registered Member #1389
Joined: Thu Mar 13 2008, 12:50AM
Location: Pittsburgh, PA
Posts: 346
I have been invited by my former physics teacher in high school to give a demonstration of HV and electronics in his class, and he believes I may attract the other physics classes to the demo as well. However, I have nothing to show at the moment, though I should have a lightbulb plasma globe built in the next few days. I have two to three weeks to put together as many things (safely) as I can for the demo, and I was wondering what all of you think would be the most rewarding to demonstrate to intelligent 16-19 year-olds.
I would also like a bit of safety advice as well, as I haven't done a demo with this much that could go wrong in the past (I've taught 13 year olds hatchet, saw, and knife safety -- scary stuff, lemme tell you), and I certainly don't want to overstep my ability to keep my teacher and his students safe. I certainly would like to be invited back next year as well. The setting will be a typical science classroom on the third floor of the building, with a long counter/demonstration space in the front (mica surface, I believe) and rows of tables to the back of the classroom.
Projects on the Table: -6" diameter light bulb plasma globe -60kV MOT CW multiplier -3"x6" OLTC, based on Steve Conner's OLTC I -Mazilli LOPT driver -Marx Generator
Demonstrations -Demonstration of a homemade rolled capacitor (teacher liked this because the clear plastic showed the construction of a capacitor) -Wireless energy transmission to light bulbs -Tesla Coil Sparks and operation explanation (hopefully) -HV Arcs and Sparks
Edit: Suggestions on IRC -VDG (teacher has one) -Flybacks and Iggies. -Leyden Jars -Lifters -RF Wireless Energy Transfer
Registered Member #2028
Joined: Mon Mar 16 2009, 08:13PM
Location: Norway
Posts: 319
In my mind, there should also be some demonstrations of the faraday cage principle. I betcha some of these people still believe that the rubber tires keep them safe from lightning when inside a car.
For example putting a cell phone inside a grounded wire mesh cage and try to call it up, or use a cage to shield yourself from the TC if you find that safe enough.
And as the doctor said above me, everybody loves a jacobs ladder
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Presentation at my Alma Mater
