» Flashlights and flashlights "How to make a simple" eternal flashlight "or a Faraday generator with your own hands!

How to make a simple “eternal flashlight” or a Faraday generator with your own hands!


Hello! Today's homemade mostly devoted to newcomers to the world of physics and electronics. Today I will show the simplest way to make an "eternal flashlight" namely a Faraday generator. It is “eternal” because it can work without any sources of energy, such as batteries and accumulators.

And so for him we need:
- copper wire with a cross section of 0.1-0.5 mm
-Neodymium magnets
- pvc pipe 10-15 cm long and 2 cm wide
-cardboard
low voltage LED
10000pF capacitor optional

From the tools we need:
soldering iron
glue gun
-scissors


And so the first thing to do is to cut out two washers from cardboard, 4-5 mm larger in diameter than the diameter of the pipe:

Now we attach our pipe to the center, circle and cut it out as shown in the photo (we don’t throw out the circles that we cut, we will need them later):

We put our washers on the pipe as shown in the photo and glue thermo glue:

Now we take a copper wire and weave 250-360 turns (not necessarily turn to turn)

We take the circles that we left and glue one of them on the end of the pipe, while the other end is left open:


We solder the LED to the ends of the wire (the polarity does not matter here), you can also put a capacitor at 100000pF and a rectifying diode, but since I did homework for beginners, I decided to do without them.


We take 4 connected neodymium magnets and throw them into the pipe, after which we glue the round we left:


We glue the LED there, without any reflecting sides:

On the side of one of the washers we make incisions, thread the wire, and fasten it to the pipe:


That's it! The Faraday generator is ready and it remains only to test it. In order for it to work, it is necessary to make translational movements, so that the neodymium magnet begins to move up and down in the direction of the pipe, a video with tests and instructions for manufacturing is presented below, a pleasant viewing


Thank you all for your attention! I hope this homemade help novices in understanding induction and magnetism.
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10 comments
Well, what kind of "eternal" is it ... you won’t shake it forever - shake it here ... and if you do ... then the pipe will be cut and neodymium vilet ... and the electrolytes or the ionistories, for a long time, do not serve. ..
Oh, no need to remind about the Gauss gun! .... I repaired it (Electrostappler-nail gun) yesterday all evening ... Then I hit it a couple of times, and he, infection, again split his body ..))))
It’s also a Gaussian gun ... or another useful device when applying alternating current to a coil
And also attach a jackhammer to the cartridge, and feed this very chipper from it)))) ... And also place these inside the pistons and the machine will do without a generator ...)))) ... And also power the siren from it, attach to the bottom of the mattress - and you can safely go on a business trip !!! ))))

... Yes, a sea of ​​applications !!! There would be a fantasy !!! ))))

... gee! ...
I found application for him :)) to tie to the leg and in the campaign Akum will charge :))
Quote: pogranec
So he seems to have a round one, and the coil on the Chinese was also one.

Round as a bicycle wheel, inside a slot to hold magnets and the wheel itself to twist with your hands or attach blades for wind or water.
So he seems to have a round one, and the coil on the Chinese was also one.
The case must be made round and put 4-12 coils.
dontknow Can an electrolytic capacitor be?
There was a similar Chinese lantern, but there is still a battery in the circuit. Then it turns out a full-fledged flashlight. Unfortunately, he did not become “eternal", over time, from shaking, the case cracked, although rubber dampers were installed there.

We advise you to read:

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