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 and appearance will not be strong 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 degrees out from what is 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.
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?
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 🙏🇿🇦🙏
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?".😍😍😍
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 👍
@@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
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.
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!
To make the motor work, the battery must be charged. Power from the battery is consumed, and the spin will continue only until the battery goes sufficiently dead.
Any conducting wire would work (aluminum, gold, silver, platinum), but copper is the easiest and cheapest to work with. The wire must be stiff enough so that it holds its bent shape. And no insulation, at least at the points of electrical contact.
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.
TH-cam 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 TH-cam.
If you could invent anything, what would it be?
Love you ❤️
Peace on Earth
a device to stop time
Time machiene
Time machine
this channel didn't devolve into fake lifehack channels over the years. I'm really impressed! keep up the good work!
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 and appearance will not be strong 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 degrees out from what is 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🤔?
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 🙏🇿🇦🙏
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
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😱
basic electrical and magnetic fields best demonstration 😎✌
"Amazing, huh?"
- DaveHax 2020
@Ibraheem 2427 YES RUNNNNN
@Ibraheem 2427 GO TO THE (totally NOT wobbly) BRIDGE!
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
Pretty cool huh
❤❤❤
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..
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
That is actually so cool!
When he said “pretty cool huh”
I felt that
U can make your own game with just battery and wire, I love it
I get a charge out of watching your videos every time.😄 Nice one!
Good joke, bud
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
It was fun making it… thanks for the video
Very cool and useful, forget boring physics with Dave!
this battery 🔋 so cool 😎
Pretty cool I think I will do this with my grandson he'll get a kick out of it.
Great video lad keep up with the good work
You're such a genius
Nice im gonna try😁😁😁
That is bloody awesome! Thank You for posting this!
awesome video
nice video
Excellent ideas. Watching with full support from Canada 🇨🇦.
Why all people dislike this idea intelligent boy --battery and magnet make motor is nice
Amazement..'am interesting this physical expriments..2025
Finally, someone found the starting point of making ufo
i made one of these homopolar motors - and it is sooo cool - simplicy and magic in one ✨
How does the current flow when the wire contact only one pole, the + ?
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
The wire can't spin . Thought I done as you done in the vedio.
Someone did well in school 😂😂😂 love your channel keep up the good work
Nice experiment !!
I did this for my science fair project.I won!!
Really?
Good job
Congrats
That is amazing
That's pretty cool huh! Kudos🎉
nice content
nice video what gauge copper wire are you using .for this project.
Dave hax 2019 : "pretty cool huh?"
Dave hax 2020 : "amazing huh?"
2019: :D 2020: :C
🌷🌷Really amazing sir
Does it have to be copper wire specifically?
It works with cable wire too. You may need neodenium still. But it worked with my neodynium cubes
OMG 15 years old upload/my favourite movie❤❤❤❤
Finally I can finish my science project
Use rechargeble battery, they can produce up to 10 times bigger current! Motor will spin much faster! :)
Your hax are pretty cool huh?
Your life hacks are pretty cool
Now that's Pretty 🔋⚡Cool⚡🔋. 😏
Iihop
Now that i know this imma make me something really cool. its gonna be such an epic art piece!🎨
Mr wizard used to do stuff like this . Great to see physics at work
Kids at the next science fair should write you thank you notes... You just gave them the best demo project...
I remeber watching you years ago , the video i first watched was the Halloween one anyone remeber ?
thank you
*Amazing Huh?*
Nice video Dave😀
Cool great shapes 💡
Came here after reading about DIY motors in Dr. Stone. Cool!
2:48 it looks like a force field
My favourite video!! Il love dave hax!❤❤❤💓
Woah! 100 likes in the first 2 minutes of release! Shows how amazing dave is!!
I personally adore your egg slicing and hot knife cutting videos please please please do more. I love you Dave.
"here's a really cool spiral one i made" XDD thank you so much
I love you DaveHax!
What kind of batteries did you use
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.
Для тех, кто не знает школьный курс физики это выглядит фантастикой
Yes, that's cool.👍
does the battery have to be circular?
What do you put under the battery ?
The demo puts the magnets under the battery so that the electrically conducting coating on the magnet makes good electrical contact with the battery.
1:31 Can I put this simple motor inside a ceramic or wooden doll?
Helpful experiment...so nice of you.. We are also doing such experiments....
Does it need to be copper?
this is really great visualization of how battery and magnetic fields interact. I always love to see science experiments to see how stuffs work.
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?
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!
Perfect dave hax hes so smart
i agree
Hi Dave, this is not working , what of magnetic you used
Thanks a lot for the video
Good info!😂❤
Does it charge at same time or is it just magnetic 🧭
what kind and size of magnets does it need to use to do that??
Uninsulated copper wire? What gauge?
Very nice project 's you are a genius
The battery is charged or discharged ?
To make the motor work, the battery must be charged. Power from the battery is consumed, and the spin will continue only until the battery goes sufficiently dead.
We can do with any type of magnet
can we make it vertical?
Very cool, Dave. Nice video.
does it work with a normal metal clip
Do we have to use thin copper wire
Any conducting wire would work (aluminum, gold, silver, platinum), but copper is the easiest and cheapest to work with. The wire must be stiff enough so that it holds its bent shape. And no insulation, at least at the points of electrical contact.
Did you forget to say
PRETTY COOL HUH?
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.
What size of wire gauge did you use?
This was so cool!
Will it work with speaker magnets
TH-cam 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 TH-cam.
The best part is that the wire is also charging the battery from the magnet
P sure that violates the laws of thermodynamics
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 :(