Hello friends you hv also heard about tesla who was great inventor.i m going to make his device for collecting energy from air.for make this device you will need these things....
1. 4 diodes
2. a 100uf ,50v capacitor
3. aluminum foil
4. piece of card board
5. some wires
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Step 1: Antenna making

Picture of antenna making
Get a piece of cardboard and take aluminum foil the size of ur cardboard and staple foil on cardboard then hang it in room or go outdoor and put it on a pole at least 9-10 feet off the ground.Now take a wire and connect its one end to anteena


its is easy to make if u can go outdoor then take a metal rod and take another wire and connect one end of wire to rod and stick rod in the ground.


make circuit according to give figure.i make my circuit on bread board.You can use any type of capacitor as high uf you can,i used 100uf,50v capacitor.after completing your circuit as shown in figure  get 1-2 volts in 10-15 min.i got 13.56 volts in 4 hours.my charging rate was very slow bcz i placed my antenna in my room only few centimeters above the ground.i am able to run a LED for 40-50 sec.


as we know in normal days air content free positive charge and ground content negative charge.when we put antenna or any metallic object in air it gains positive polarity.in this project we are making aluminum foil positive and metal rod negative.when we connect a capacitor b\w them capacitor get charged.
Sam YeH1 month ago
By the way ANTENNA can not collect pos only charges. It collecting radio waves. Which would never charge a capacitor more than 1/3 of a volt. The ANTENNA would need paper or card board backing to collect pos charges one direction is needed the ground would pull the pos charges into your capacitor. Same results very low voltage. Most of the time the ground will drain anything u collect. A switch can stop equalizing effecrs.
Sam YeH1 month ago
Ur making one mistake. U can't collect enough electricity from sources like the sun or the air. Because as the pos charges get closer to the neq charged earth the pos are canceled out. This is why solar will never get better than 18% the panels slow the pos charges but can not absorb do to the speed of low charges. It's faster than light. U can't even absorb light at higher rates. The earth is collecting most of the free energy we seek. Fossil fuels work better as converting it to energy is 35%.

We need to find more efficiently in the conversion of fuels. But we will always complete with the earth for electric energy no matter what the source
Did u know it's more efficient to covert wind than solar. Also water converting is better than wind or solar combined. It the weight.
100 mph wind or 100 mph wall of water. Which one does more work or damage.
aden.limbong7 months ago

just a suggst scheme

prayag nao (author)  aden.limbong2 months ago
J-dc aden.limbong6 months ago


You mean a coil between the collector and the bridge rectifier? Why?

Respectfully of course.

J-dc6 months ago

I like the idea of Germanium diodes, considering they conduct at lower voltages than a silicon diode.

are you make it..?? plz give the picture of your project

zo manloon1 year ago
fish_dude1 year ago
how do you ground it if you are inside or do you have to be outside
prayag nao (author)  fish_dude1 year ago
use ur home's ground connection,u can see a largest hole in ur electric plug,use that
ok thanks
ironsmiter1 year ago
I am guessing, you may want a current limiting resistor in there, if you plan on taking your device anywhere near high tension lines?
goot instructable but the electricity you are getting out is from radio transmitions in the air and the energy you get depends on how close you are to a transmitter or if there is an electrical storm nearby
tech savvy1 year ago
nice instructable ,
you would get better results if you used ultracapacitor instead of the one your using , and it would run your led a lot longer and maybe even charge quicker ,
keep up the good work :)