Instructables

Wireless Power

Haven't you always wanted to charge your cell phone or mp3 by just putting down on your desk. Well one company named Splashpower has created a device that can do that.

It works by using electromagnetic induction. Pretty much only Faraday's Law but with an electromagnet. Also this technique is used in charging high-end toothbrushes and Splashpower Devices.
 
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Step 1: Get the materials

You are going to need these things:

1. Lots of wire. I used 18 guage wire.

2. A piece of steel that your going to wrap wire around.

3. A capacitor, one with high capacitance.

4. A diode.

5. Batteries, I used 6 nine volts.

6. A multimeter so you can see if everything works.

7. And something to make it a little easier, Alligator clips.

Step 2: Making the Coils

To make the Base Coil you wrap wire around the steel piece. I duct taped paper plates to the steel piece to make it easier. The more the coils the better the transfer of electricity.

Then, to make the Reciever Coil I put the non-sticky side on a D Battery and then wraped the wire on the sticky side. Make sure the reciever coil is around the size of the unless the steel piece is huge. Or if you have magnet film to see the where greatest amout of magnetism is. Once you are done winding the coil you can slide the coil off the battery.
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janisalnis28 days ago
craftclarity2 months ago
Hello, I am glad that you want to participate in the Instructables community. Unfortunately, this does not qualify as an Instructable. However, this would make a great forum topic.

Please post this in the forums.
TESLA16 years ago
have you ever herd of Tesla he transmitted wireless electricity 10 miles with 99.99% efficiency, over 100 years ago thats better than wires today
twist2b TESLA15 years ago
1. He WANTED to do that. Power died before he could test that theory 2. His theory was wrong 3. He used a more dangerous approach thats been around for.... ever. It is dangerous to humans due to the using RADIO waves instead of microwaves. Thomas Edison did a little work in this area as well. Not to be mean... but keep facts straight before blearting them out... remember that your expecting people to believe you.
umm Radio waves and Microwaves are the same thing.....
Tesla invented radio and modern AC Technology that we use in our houses today.

Read the Wiki article http://en.wikipedia.org/wiki/Nikola_tesla

"...keep facts straight before blearting them out... remember that your expecting people to believe you." Ditto....

Mike
KD5QLN (Amateur Radio Operator)
Where did you ever get the idea that Radio an microwaves are the same thing?
They are both types of electromagnetic radiation, but they have different frequencies and have different effects

Amateur is a proper title, as I see.
Haha!!!!! The 2 are Not the same!!! Wiki "Frequency" and scroll down to the pick! Haha, fail.
it is quite obvious that you are a child goofing around, if your interested in science than great but kid leave science to those who actually know what they are doing, and what they are talking about, go back to your twitter and blog to them.
 By even attempting to place yourself in the scientific community while trying (and clearly failing) to harass "someone that you don't like," you deserve absolutely no laudation nor recognition in even the minutest of scientific research or experimentation, and I for one would risk being banned from one of my favorite websites just to see that your immature behavior is acknowledged and that others can learn from your example, because your type, that suffers from such delusions of grandeur, should be given no heed anywhere. So be nice.
First off Microwaves are more dangerous than what you call "Radio Waves". How do you think your microwave oven works?

Here are some wiki's for ya...

"Radio frequency (RF) is a frequency or rate of oscillation within the range of about 3 Hz to 300 GHz."
http://en.wikipedia.org/wiki/Radio_frequency

"Microwaves are electromagnetic waves with wavelengths ranging from 1 m down to 1 mm, or equivalently, with frequencies between 0.3 GHz and 300 GHz."
http://en.wikipedia.org/wiki/Microwave

"Radio" Waves
" of or relating to electric currents or phenomena (as electromagnetic radiation) of frequencies between about 3000 hertz and 300 gigahertz"
http://www.merriam-webster.com/dictionary/radio

So... Microwaves are Radio Waves, Microwaves happen to have smaller wavelengths in the Radio Frequency Spectrum than say VHF or UHF.

If you would like to learn more about RF check this site out http://www.wedothat-radio.org/hello/what-is-ham-radio.php
On the electromagnetic spectrum, radio waves are the least dangerous, then microwaves, inferred, visible light, ultraviolet, x-ray and then, the most dangerous, Gamma rays. =D

Well in a way they are the same thing. they are both forms of electromagnetic radiation. but saying that microwaves and radio waves are the same thing is the same as saying that light and radio waves are the same. its true that they are all forms of EM radiation but they each have a different frequency, and this is why they are not exactly the same thing, all, (almost all?) types of EM radiation can be harmful to humans if the waves are carring enough energy. we have radio waves and microwaves and light waves all arround us, but they only become dangerus when they are high energy such as the microwaves emmited from a microwave oven, or the light waves emmited from a high power laser, or high energy radio waves. the key to wireless energy isnt so much what type of EM radiation you use or its energy, its a combinatiojn of both. (as well as other more complicated factors such as evanescent wave coupeling and quantum tunneling, but thats for another disscussion.) 

Mudbud nikropht4 years ago
oooooooooh your right. (why do people think marconi invented radio? he used15 of teslas patents and tesla did radio way before him.) oddly I have the same first name. KJ6CJH :) nice instructable.:)

4. 99.99% efficiency? I dont know of anything that efficient....

Tesla turbine
actually he did do this, and there are test being done today with promising results, as a matter of fact a prototype is nearing final test and awaiting approval. If memory dictates an old issue of popular mechanics covered this, not trying to be mean or anything just clearing up the facts, not all radio waves are dangerous, this is why in controlled experiments electricity can be ran around the body and not through it, safe . so in the hands of someone who doesn't know what they are doing then well yes it can be, but in the hands of professionals it is perfectly safe and most likely to be how we transmit energy in the future, from space to ground, using solar farms in space and transmitting them back to earth. have a nice day
Now just how the hell did he do it
www.google.com/patents Search for Tesla, all his patents are there.
Not all of them, there is a book of classified ones.
He's just plain incredible.
Yeah, I wish the plans were still around....
A few of them are. Most of them burned in the fire of his New York laboratory...
Ahhh, Thats sad
Yeah. If I remember correctly, the fire was started by someone sent out by Edison to do it.
Sad...
Very. Very indeed.
Yeah< it would be very interesting having a Tesla coil powering the towns and citys...
Yes. And you'd never have to recharge your batteries!
Yeah, I wish it were possible
he started a project on a large tower but j.p morgan and others cut funding. The main reason for this was not the cost as much as it was that these where the same companies that just brought AC power to everyone. Tesla made things obsolete the month after inventing them.
JPMorgan pulled funding because Tesla was secretly forwarding his transmission of electricity project behind his backers backs and Morgan had invested with Edison's inferior DC system.

It wasn't until Tesla teamed up with Westinghouse(?) that that Edison felt threatened and refused to allow a single sale of his light bulbs for the AC demonstration as a public fair where his AC system lit the entire city and without a power station on every block.

You also have the mysterious events of the destruction of his works in the lab fire, or were those works destroyed or were they stolen before and the whole thing staged???

You have to remember that people like Edison were not nice people, the fact that he promised Tesla $50,000 to improve his inferior DC generators and did just that, was given the bums rush when Edison told Tesla after working hard for a year that it was a joke. This greedy and arrogant person and I refuse to call him a man as thats disrespectful to fellow mankind. He like others were successful off the back of Tesla, none of the modern hero's would exist if it wasn't for Tesla and IMHO the world owes Tesla a memorial in every university and city that is on this planet to honor the man for what he has done for us all and continues to do beyond the grave.


http://theoatmeal.com/comics/tesla

That sums up Tesla and how awesome he was very well.
Ah, Darn power companies ;-(
Yes, exactly. He would constantly come up with new ideas for everything, and everyone would have to switch to them immediately, or all their electronics would stop working.
*sigh* the Chuck Norris of science.
Yep, He is......
It's not surprising...
Yeha
you say yeha all the time
Yeah, Thats what happens when your in a hurry.....
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