Speaker = Generator

For people who are unfamiliar with how electric stuff works, it may come as a surprise than driving a speaker can generate electricity! Here I made 10 LEDs light up by dropping a light weight ball on the speaker. Why 10? That's all the LEDs I have! I'm sure that it light up more than 10 (in parallel).
And did you know that every speaker (that uses a copper wire coil and a magnet) can be used as a microphone. It sounds like crap, but it works.

[@ForcefighterX2]

Resonance is our friend. :-) By the way every (analog, like this one) speaker can be used as a microphone as well. You can do this with every PC/laptop. Connect your headphones to the microphone-in and open a recording application (e.g. Audacity). Then loudly into your headphones and you will see it being recorded in a very very bad and low volume. But it can be replayed and listened to.

[@Trebseig]

Thanks for that compliment, I am blushing now! I enjoy doing and sharing these experiments, and often search on youtube for videos shared by others, that inspire me. Glad you and your son enjoy watching it :-)

[@sierraecho884]

Yep, this is awesome, I could use that in a free piston Stirling engine to generate electricity without having to make my own generator, thank you.

[@Trebseig]

Yes, this would be a great school science project. A real eye-opener, and not dangerous to do.

[@seededsoul]

Giesbert Nijhuis Now shout at it until the LED lights up.

[@happyfaic72]

very cool! would be a great science project

[@Speeder84XL]

Really cool! I had no idea a speaker worked tha good as generator 😀

[@nicholaslandolina]

this isn't sound into electricity it is... mechanical force magnetically into electricity

[@mozartips]

Yes you are right.

[@YOitsJohnDough]

you should think about it more.

[@ttvphilswifft8682]

The idea is that magnetic force can be translated into energy it's literally that simple......😐

[@andyd1784]

@@ttvphilswifft8682 So if you shouted into a speaker or screamed through a megaphone int one, would it not generate energy from one speaker to another or cause led lights to glow?

[@ttvphilswifft8682]

@@andyd1784 yes

[@isaarshad3557]

can u give me more detail about this generator . i need a review for my final project ..

[@mikaelafrias7786]

How did you get the speaker? How did you build the thing? Please describe in detail. Thanks. I need it for experimentation project😊

[@keldandersen4911]

yessssss. many electronic things has a duality, works both ways. however, some only once......

[@shankarsanjeev7]

Can you give us a amazon link on where to buy the speaker

[@CameraKid2]

wow!!!!! this is awesome!!!!!!

[@Trebseig]

In theory, that is possible. In practice you'll find out that that is about the most impractical way to generate electricity! (unless maybe if you live somewhere where it rains all the time -I hope not)

[@Madscientists]

which speaker is this

[@user-uu2hu5sd4n]

The electricity that operates a small motor or lights up LED bulbs 40 at the same time is not ‘Free-Energy’, it’s purely ‘Vibrational Energy’ and very powerful. 진동발전, vibration generator Perhaps it will be very useful to the renewable energy.

[@Brassmonger]

Can i run small motor using this metod with bigger speaker?

[@MrJuuustin28532]

My favorite video on you tube. This is the coolest thing I've ever seen, and has had my mind lost in ideas all day. Thanks!

[@serzzzqwerty4737]

Imagine the potentcial of this "gift" for noisy upper flour neghbours😈😛🤩

[@christopherteague9888]

Oh, my god you found it! Sound = Energy!!! Yes!!!! Look, point it at a tone that resonates with the speaker. Please. The POWER!!!

[@sarahalmubarak6608]

what are the items

[@joshuabrown9643]

This is actually a pretty big idea...there is noise everywhere. Imagine using the noise in a generator room to provide a DC output to go with the AC output of the generators...glad to see your motor's still running strong Giesbert. Haven't been online in a while because of work, but this is a really good thing to come back to...keeps my creativity alive to see others doing creative science.

[@NBROWN31]

I tried this with my subwoofer I got, and I didn’t manage to get 1 led to light up no matter how fast I push on up and down on the speaker. So I decided to break out my volt meter and it was reading .357 VAC. How many volts are you getting?

[@Speeder84XL]

I think a volt meter isn't fast enough to measure it correctly and will show too low values. An oscilloscope is a better option. Although, if it didn't got an LED to flash, the voltage was probably quite low - not more than the voltage drop of the diode (about 1,7-2,8 V, depending on what color/wavelength the LED was). Btw. If the subwoofer (since I guess by that description it is a speaker in a box and not loose element like in the video) had a capacitor inside in series with the element (which it might have, to protect it from playing too low frequencies and damage the speaker cone/coil), it might also be hard - because even if you push it as fast as you can, it might still be very low compared to audio frequencies.

[@haunter2804]

this would be great for the green new deal !!!!!

[@somton.9789]

It is vibrational energy otherwise when you bounced the green ball on the table which generated sound, the orange ball should have still shown movement.

[@clipoff]

do you need a really powerful expensive speaker to get that to work?

[@Trebseig]

No, you don't need an expensive speaker; they all work. But: the speakers that can produce the most power are subwoofers. They have the biggest coils and magnets. Tweeters don't work well at all, unless your source of vibration is of very high frequency.

[@CamronLocke]

Hahaha, Yeah i've seent the piezoelectric crystals for "tap" generators. I mainly use homemade solar panels to charge batteries, also small wind turbines to charge batteries or to just light a few LED's, I'm only 13 and when i get money I'll experiment with things like this.

[@comicscookingmore8113]

i am working on a project which works on the same principle but the output generated by the speaker is very low. so i decided to build my own transducer for conversion so i wanted to know that what will be the effect if i increase the size of magnet and the voice coil in the speaker

[@jacob_gould8889]

Reuben Whyte was here

[@deenalaykie5260]

fucking genius! the more Watts, the more Watts... now to add my kids pinwheel, card in bike spokes.....fucking GENIUS!! Great idea, thanks for sharing! trust in fixing to share this!

[@ASHORSHEMAYA]

Hi I liked it .. but I have a questionyou, have u measured the voltages generated? I mean how much exactly voltages generated? Thank you

[@Trebseig]

Pfff, that is a long story. Situation is that I can only move my head, and manage to survive with the help of al lot of people/friens and stuff. I try not to think about my painful situation, instead I focus on vortex lift and such. Last 3 years, Alex Baumgart has joined me in doing vortex experiments. Do I have a wife? unfortunately not. I find it quiet impossible to get and maintain a love relation in my situations. More details are too private to place online!

[@007jacquie]

Wow' Amazing Report Thank you!

[@serzzzqwerty4737]

Imagine the potentcial of this "gift" for noisy upper flour neghbours😈😛🤩

[@jacob_gould8889]

Put the file name

[@romanieo]

You sir, are an inspiration. Your scientific and investigative lens is unique among those who share Art and Science on KZbin. This is one of the highest compliments I can give. I share each video with my young son who has a mind tuned to a frequency perhaps similar to yours. Continue exploring the boundlessness of your mind and we'll keep studying. Perhaps we'll have something to share in a year or two. youtube/Romanieo

[@sourasishdas9111]

Please can you tell me from where we can get this type of speakers

[@christopherteague9888]

Sound Vortex. Just like the Wind vortex. We do it with light and electricity. Why NOT sound? We already know we can levitate things with it and make shapes too. Why not ENERGY???

[@riyanshuanand7160]

ty gestburg it helps me much.......... 😊😊😊😊 and its so cool

[@SamuelCarrascocisterna]

Yo lo intente y no me funciono. Alguien me puede explicar por qué?

[@TheTrumanZoo]

awesome, now take it up to space to generate power from movement using the plates vibration :D :) ive been thinkin about this as well, maybe the complete speaker in a balloon itself would radiate omni spherical sounds.

[@christopherteague9888]

P.S. You are amazing!!!

[@StephenRansom47]

OMG! That's fantastic. I know, add a disc twice the diameter with a blade to compress air and ENGINE. Fan-Tastic. :)

[@StephenRansom47]

Something like this, is much better for bicycle light generators- especially the Maker crowd.

[@StephenRansom47]

Jeez, shouldn't "cards in the spokes" BE a generator at this point.

[@Maverus]

It is a mic... I mean it looks kool, but it is simply a microphone to a speaker... I don't think it would be a suitable generator. Speakers are coil and magnet setup, a moving magnetic field generates an electric field. By dropping the ball on the speaker you move the coil into the magnetic field, which induces a current in the wire. This current travels along the wire to other speaker. A moving electric field induces a magnetic field, which is opposed to or attracted the perma-magnet in the speaker, causing motion. Very simplified: F=mg => F=BIL => induced I travels to the other speaker (a proportionate value) this does the reverse and there is a resulting force on the ball. One thing to note, is that the smaller ball, of presumingly less weight, does not go as high as it should given the force put into the system.

:O

[@Photomonon]

I was thinking about this

[@user-oi8mq1jz2l]

شكرا اخي الكريم إني من العراق

[@okay8632]

Aight