Monday May 21 2012
The Leyden Jar


Learn to construct a 25,000 volt Leyden Jar from materials found around the house. This dramatic, yet safe, demonstration is a great way to learn about electrostatics, charges, and circuits.

This project has science fair potential.


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Awsome

Thats so cool I'm trying it.

Static Electricity

Would there happen to be any other items that generate static electricity, just in case you don't happen to have a vandergraph just lying around?

Yes, anything that will

Yes, anything that will generate a static charge will work. If you have a tube-type TV, that works great, as I show in the video, but you can also use a balloon. Just rub it on a sweater or your hair to charge it up, and then bring it near the ball of foil on the Leyden jar. Then rub it on the sweater again, and again, and again. After 30-40 times, you should get a nice spark. If not, use a hair drier to dry the Leyden jar, and try again.

can you use a metal pipe for

can you use a metal pipe for the 2nd piece

Yes, as long as you keep

Yes, as long as you keep things small for safety.

i have a science progect on

i have a science progect on the jar can you do a video on how it works
plz reply

Electric Lines

Why do birds not get shocked when they sit on electric lines?

Check out this video for the

Check out this video for the answer: http://thehappyscientist.com/science-video/bird-wire

Alternative to TV

Really hard to find a tv that would work at school. Would anything else work? Only LCD and plasma screens. Would an old fashioned computer monitor work?

Only if it is not hooked up

Only if it is not hooked up to a computer. An accidental static spark could damage the computer if it is connected. Try using a balloon and a wool sweater. I have gotten a very decent spark that way.

Dry Ice

Dry Ice is called dry ice because it is frozen Co2.
Therefore it melts into a gas not a liquid, and is dry.

Dry ice

why do they call dry ice dry ice?

yeh

why do they ?

jayme

is it just me or do u hear look at me now in the background???? and april 1st was my b-day!!!

cool

that is cool

your electrifying

that is so cool i am going to try that today samantha and sophia camacho

you

do u always were plad shirsy

hey

this
video was awesome fr.ciara

coolest thing ever!

coolest thing ever!

awesome

dude thats aawesome

hey

im ciara lamar i go to dr.w.j.creel schoolelemantrey im in 5th grade an im instersted in your projects an one day wanna be just like you an have a website to were people all over the world ca see my videos so ur videos are awesome just like you i wacth them over an over every day so i can have stuff like what you do in my haed so when i get older i can have cool science class and have studens who are insrtested in my an your word mosley yours thoe gotta go bye a plezz write back

Hi Ciara. Thank you for your

Hi Ciara. Thank you for your kind words. I'm glad that you like the videos, and hope that you will go into a career in science, and maybe make videos too.

sweeeeeeeeeeeeeeet

i toataly agree with you man!

Leyden Jar

Dear Mr. Krampf:
We have tried this experiment, had a great time with it, just wondering why it is called a Leyeden Jar. Perhaps a Mrs. Leyden figured this out while in the kitchen? I look forward to your reply. Thanks a bunch.

It was invented by a

It was invented by a professor at Leyden University in Holland.

Just tried this with our tv.

Just tried this with our tv. Looks even better in the dark!

moves

I like this moves about shocking

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