DIY Button Battery Homopolar Motor - Science Experiment

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If you could invent anything, what would it be?

DaveHax

this channel didn't devolve into fake lifehack channels over the years. I'm really impressed! keep up the good work!

skillgamer

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.

youtuuba

What are the odds that I'm fidgeting with a battery and getting a youtube notification about a battery toy video? 😂

aggames

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 🙏🇿🇦🙏

waltervetri

"Amazing, huh?"
- DaveHax 2020

PhysiologyShark

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?".😍😍😍

stepandacian

basic electrical and magnetic fields best demonstration 😎✌

DiyTechHubOfficial

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 👍

jhunter

When he said “pretty cool huh”

I felt that

reds

What is your catchphrase
"Pretty cool huh?"
Or
"Amazing huh?"

jamescard

I tried making this many times before and it was a success. If you flip over the magnet, it would spin the other direction.

anonymous_AOL

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

ianvicedomini