DIY Button Battery Homopolar Motor - Science Experiment
2024 ж. 9 Мам.
2 737 362 Рет қаралды
How to make a Homopolar motor from a battery, magnets and copper wire. Fun science experiment. I make different designs and use different sized batteries including a tiny button battery. More Science Projects: • Fun Science Projects
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If you could invent anything, what would it be?
Love you ❤️
Peace on Earth
a device to stop time
Time machiene
Time machine
Some very important bits of information that were missing from this video: - The magnets pretty much must be neodymium types. Some 'refrigerator' magnets of the same size, shape an appearance will not be string enough to result in a working motor. - While most round neodymium magnets are polarized with N on one face and S on the opposite face, there are indeed identical looking neodymium magnets that are polarized 90 degreed out from when it necessary, and they won't work. - The copper wire must be conductive at all points where it touches the end of the battery, and also where it touches the magnet(s). The wire can be plastic insulated or lacquer insulated for the rest of its length, but it is usually best to use completely uninsulated wire. - There MUST be an electrical circuit, with current flowing from the tip of the battery, through the wire, and back to the opposite side of the battery via the conductive nickel plating of the magnet(s). It is a LOT of current, as the battery is essentially being short-circuited. Larger batteries can produce the same amount of current for a longer period of time, so a "AAA" cell will last longer doing this than a button cell, a "AA" cell will last even longer, a "C" event more, etc. But regardless, the run time is not very impressive, and a partially drained battery/cell either won't work at all for this, or else the wire will spin slowly. - It should be clear from the above that the wire must be making an electrical connection with the magnet(s), but you want to form the wire so it is pressing against the magnet with just enough pressure to assure a good electrical connection, but not any more pressure than that, or the friction will slow the motor down.
string enough?????
The nerd at school be like 😂😂😂😂
does the amount of magnets u put affect how fast it is?
excellent comment, ty!
Could you also perhaps explain the function of the magnetic component in the circuit? If I could somehow get the wire from the positive to negative end of the battery do you think it'd still be functional?
2:11 who hurt you dave
What?
ThinkTractions he said amazing huh instead of pretty cool huh
I was also stunned by this.
@ThinkTractions you ain't OG.
@@thejordyoshi ikr I was hurt, where did "pretty cool, huh" go🤔?
this channel didn't devolve into fake lifehack channels over the years. I'm really impressed! keep up the good work!
Science is an interesting and amazing thing. For me to invent something would drain my brain just coming up with something fun. Great video mate
Very cool and useful, forget boring physics with Dave!
That is actually so cool!
What are the odds that I'm fidgeting with a battery and getting a youtube notification about a battery toy video? 😂
Ha ha!
Its happening more and more. I told a staff member to buy some silica gel and he said ok and the Same Day a video about it popped up..
@@korbynludlow4926 ঌ
You better hide i think the FBI is watching you
@@DaveHax wow😱
I JUST remembered about this channel after not seeing a video in YEARS after a little bit of trying searching finally found it. I absolutly LOVE how everything is still the same, same songs, same calm voice, same style. I loved hearing again "Pretty cool, huh?".😍😍😍
I dont know what science is behind it
me too bro
When he said “pretty cool huh” I felt that
That is bloody awesome! Thank You for posting this!
"Amazing, huh?" - DaveHax 2020
@Ibraheem 2427 YES RUNNNNN
@Ibraheem 2427 GO TO THE (totally NOT wobbly) BRIDGE!
I get a charge out of watching your videos every time.😄 Nice one!
Good joke, bud
this is really great visualization of how battery and magnetic fields interact. I always love to see science experiments to see how stuffs work.
Nice motors! I'd like to see a short, where you do it with thicker wire, and an F-Cell battery. F-Cells can be found in 6-Volt lantern batteries, and I'd recommend getting an Energizer-branded lantern battery, to get 4 of them. Just be a bit careful, cutting off their connection tabs, once the F-Cells are cut out.
It is 7h11 in the morning ,South African time.I finished my New York wordle game and this is my first best video for today .Thank you.Can't wait to try it.Vetri South Africa 🙏🇿🇦🙏
basic electrical and magnetic fields best demonstration 😎✌
I personally adore your egg slicing and hot knife cutting videos please please please do more. I love you Dave.
i made one of these homopolar motors - and it is sooo cool - simplicy and magic in one ✨
U can make your own game with just battery and wire, I love it
When this lockdown is over, I will get down to the electronic shop and get the copper wire and give this a try. I think my grandson will love it. Thanks for video 👍
I'm from 1 year in the future. The Lockdowns continue..
Now that i know this imma make me something really cool. its gonna be such an epic art piece!🎨
What is your catchphrase "Pretty cool huh?" Or "Amazing huh?"
Pretty amazing, huh? ヾ(❀╹◡╹)ﾉﾞ
Pretty cool huh?
Pretty 🅱️, huh?
Omg you are so right !!! 🤣🤣😂😂😂😂
Pretty 🔋 XD
Wow, very impressed 👍👏
You're such a genius
Very cool, Dave. Nice video.
This was so cool!
Excellent ideas. Watching with full support from Canada 🇨🇦.
Kids at the next science fair should write you thank you notes... You just gave them the best demo project...
Great video lad keep up with the good work
Nice experiment !!
Someone did well in school 😂😂😂 love your channel keep up the good work
Pretty cool huh ❤❤❤
Very nice project 's you are a genius
Your life hacks are pretty cool
I did this for my science fair project.I won!!
Really?
Good job
Congrats
That is amazing
That's pretty cool huh! Kudos🎉
I love you DaveHax!
Woah! 100 likes in the first 2 minutes of release! Shows how amazing dave is!!
Cara...isso foi muito bom!
Finally, someone found the starting point of making ufo
It works with cable wire too. You may need neodenium still. But it worked with my neodynium cubes
Them are cool little Motors it gets your mind going I've been messing with motors and lights ever since I've been a little kid
*Amazing Huh?* Nice video Dave😀
I tried making this many times before and it was a success. If you flip over the magnet, it would spin the other direction.
Can i know how to make it spin? Cause i tried but it didn’t spin🥲
@@lunainluv u need to make the bottom loose enough so that there's less friction. But when u put the wire on top, u need to make sure part of the wire touches the battery so that it moves. If it still doesn't work then idk the problem for u
nice video what gauge copper wire are you using .for this project.
"here's a really cool spiral one i made" XDD thank you so much
Perfect dave hax hes so smart
i agree
Back ground music issss ssoooo nostalgic 😭😭😭 i supposed to watch u when i was between 8-11 best channel evrrr
Oh pretty cool. I did not make one but I would like to ask question . How much time it is working ?
My favourite video!! Il love dave hax!❤❤❤💓
Pretty cool I think I will do this with my grandson he'll get a kick out of it.
Helpful experiment...so nice of you.. We are also doing such experiments....
Finally I can finish my science project
If someone was to do this with a very powerful (for instance neodymium) magnet, would it make the wire spin faster? Or will it cause anything dangerous to happen? I googled it & it doesn’t seem like there’s any kind of well-discussed contraindication between (at least lithium) batteries & magnets. But the discussion was mostly around whether it would drain the battery. I was more concerned about whether it could heat up and/or explode the battery lol.
I made this exact experiment using neodymium magnets,and it spins really well. The flat magnets the author is using are neodymium. Ive got the same magnets and a $hit load of various sized Neodymium magnets. This experiment is great.A lot of fun...BUT,you wear magnets out rather quickly.It gets expensive. One note... Batteries are a DC source. So,I tried this with DC transformers of varying volts and currents.I couldnt get it to work.A bit of a mystery to me. Oh...and as far as batteries exploding...Ive killed many batteries playing around with this,and never had one to explode or even get hot.
@@stegususcley2655 Don't you mean, wear out batteries quickly, not magnets?
Dave hax 2019 : "pretty cool huh?" Dave hax 2020 : "amazing huh?"
2019: :D 2020: :C
What gauge of wire works best for this project?
Mr wizard used to do stuff like this . Great to see physics at work
Parents: so you failed the exam Me: pretty cool huh?
Why all people dislike this idea intelligent boy --battery and magnet make motor is nice
Really cool! I have a query though, how do we have electric current without a closed circuit?
Obviously, the top is connected to one battery terminal and the bottom end of the wire connects to the bottom terminal, through the magnet. The bottom of the wire just brushes the magnet to make intermittent contact. I was intrigued with this novel device.
Thanks a lot for the video
Use rechargeble battery, they can produce up to 10 times bigger current! Motor will spin much faster! :)
Came here after reading about DIY motors in Dr. Stone. Cool!
this battery 🔋 so cool 😎
Yes, that's cool.👍
Cool great shapes 💡
wow I've come here not long after the vid was uploaded - makes a change lol! Edit: I've said it before on another of your videos, - I wish I had a science teacher like you in school - I think I would have enjoyed physics (especially) a bit more than I did!
I remeber watching you years ago , the video i first watched was the Halloween one anyone remeber ?
Why am I picturing a fabulous bear dancing on the ice?
Why am I picturing the Chupacabraz disemboweling yer cretin of a dog in the middle of World War 2?!
@@zay0_n4ra11 Mexico wasn’t involved in WW2 homes.
@@Nuttyirishman85 Mexico was the LEADING country in destroying the Japanese convoy coming to America! Alot of good men died in them fields my little lad!!
i love the last 1 :-D
Hi Dave love the vids youake
That soo good 😍
This mans voice is like a anti-stress thingy
Nice im gonna try😁😁😁
Bro you are the one of the most genius man in the world.LOVE FROM INDIA.
🌷🌷Really amazing sir
Does it only work if the wire is around the magnet at the bottom? Or would it work with a shorter piece of wire
kzhead.info/sun/Z6eAmtdlkWmYd30/bejne.html&ab_channel=ElectroBOOM
Hey Dave, try attaching razors to wire and a really powerful battery and cut some cucumbers!
awesome video
Pretty simple huh !!!
How does the current flow when the wire contact only one pole, the + ?
I love this
AA+ battery is for my remote, im so happy about this,
Be interesting to see if it cant be done without a dead short. I'm thinking the battery wont last long ?
Correct. You are shorting the battery. If you put a resistor in the wire, the current in the wire will be less, and the motor will spin more slowly.
I used to make these a long time ago. I remember it working pretty well and the battery getting hella hot.
I was learning about this same project in school like 2 weeks ago😂
Same but we have it for homework and it isn’t working :(
Uninsulated copper wire? What gauge?
Does it have to be copper wire specifically?
Where can we get those magnets and much does it cost
Smart! ❤
KZhead is watching you Friday night I was making one of these from a vsauce curiosity kit and today I get a recommendation of the same thing amazing how you doing KZhead.
Haven't you already made these before in a valentines video
Is the chemical energy spinning the wire or the button magnet’s magnetic field, or both?
The magnet creates a magnetic field (say, in the X direction), the battery creates an electrical current (say, in the Y direction), and those two create a force in the Z direction. Then the force turns the motor. This is very similar to Michael Faraday's first electric motor circa 1825.
Dave, what about a 12V homopolar motor
Why am I watching this videos instead of doing online school
@@korbynludlow4926 I said that like a year ago lol
What could be the reason mine is not spinning? Need stronger magnet?
this is how a speaker works a magnet near the coil and current is sent trough the coil creating a piston effect
Did you forget to say PRETTY COOL HUH?
You are a nice guy
I enjoyed this video.And I loved this motor. I want use it for my science exhibition. But I have a question. Can we use any strong magnet in it. Pls reply.
The stronger the magnet, the faster the motor will spin.