Homopolar Motor With Five Speed Manual Stick-Shift

[Mrshotshell]

u.s. coins arnt magnetic what can i do

[MrfixitRick]

@Mrshotshell

use steel washers or magic shop coins

[Tabmuryn]

Do you smoke cigarettes ?

[MrfixitRick]

@Tabmuryn

Um, no, the smoke from cigarettes gives me an instant headache that doesn't go away for days. I have smoked them in a past life, decades ago.

[Tabmuryn]

@MrfixitRick Hmm ok , the reason why i asked you about it was your voice :)

Greet from Poland :)

[PlanetaJuegosPC]

where are those coins from? They look pretty similar to argetinian coins lol

[MrfixitRick]

@PlanetaJuegosPC

Canadian coins!

[lilogboy14]

@PlanetaJuegosPC the last coin  looks like the 2 dollar coin from mexico

[snownboard4life]

what kind of magnet was used?



[MrfixitRick]

@snownboard4life

The magnet is a N52 strength neodymium super-magnet from K&J Magnetics.

[MadeInOregon27]

@MrfixitRick

What different kinds of magnets are there? Are the neodymium ones the only ones used in these motors?

[countzandr]

The engineering sciences are the noblest and, above all the others, the most useful.

[MrfixitRick]

@countzandr

Elegant comment, thank-you.

[BradySayre]

LOL! speed broke!

[dreamer32993]

for one second i tought the last coin was a mexican 2 or 5 pesos.

[jasonweil2000]

not really gearing. the shifter arm is completing the circuit and adding resistance to the rotating mass at the same time... the large coin slows it cause the arm is farther from the magnet and takes longer to complete a rotation and provides the most resistance

[wizardtech1]

Smart as hell but broke as a joke

[MrfixitRick]

@wizardtech1

Hehe, you are the Word Wizard

[Choirathlete]

Since when were coins magnetic?

[MrfixitRick]

@Choirathlete

Since they were made in Canada.

[duartman]

how this is useful? :D

[MrfixitRick]

@duartman

I think it's useful and fun to show some basic principles of magnetism that could change the world radically in the next few years.

Besides that, homopolar motors in the 25,000 horsepower range are installed in naval vessels because of high efficiency and stealth.

[duartman]

@MrfixitRick \m/ I'm with you you are the king!

[Mosszillakilla]

Ok Jesus man what the hell lol I have tried ever magnet I can find readily available including a magnetic crane at my uncles junkyard and none of this magnetic wizardry can pick up coins of any kind ~.~

[MrfixitRick]

@Mosszillakilla I used Canadian coins. Canadian coins use steel and nickel and are magnetic, as well as UK ones and Euros.

Some Canadian pennies are zinc and copper, and are not magnetic, like US coins.

[0beastly0]

Lol, I was thinking when he was shifting into 5th, this can't possibly stay together!

[MrfixitRick]

@0beastly0

I was thinking that from second gear!! The rest were a bonus! haha

[225740amaury]

it can smoke a civic

[gitrmstr]

Are neodymium magnets necessary? or will any magnet suffice, if not, will Buckyballs work?

[MrfixitRick]

@gitrmstr

For this experiment, powerful neodymium magnets are necessary. Buckyballs are powerful, but not big enough and the wrong shape for the main magnet under the battery. You could perhaps use a Buckyball magnet to attach the battery to the steel hanger.

[gitrmstr]

@MrfixitRick ok thank you, I have found more magnets but am not sure if they are neodymium, they are the same shape as yours and are alot stronger than my bucky balls. is there a test i could do to find out of they are neodymium?

[MrfixitRick]

@gitrmstr

I suppose you could do a test to see what force will pull the magnet off a steel surface. There are magnetic strength charts for each size magnet at the K&J Magnetics website (link is in the "Show More" box)

I suggest you could try your magnet to see if it works as a regular homopolar motor, with a heart shaped rotor. Try that first, as this 5-speed experiment is a lot trickier to run.

[gitrmstr]

@MrfixitRick Would a thinner copper wire work?

[MrfixitRick]

@gitrmstr

Yes, a thinner copper wire, from the steel hanger to the magnet, will work.

[locouk]

It should be 6 speed as there are 5 coins as gears and the 6th is the neo magnet.

[MrfixitRick]

@locouk

How about 5-speed plus overdrive? Otherwise I would have to re-do the movie.;)

[locouk]

@MrfixitRick Just re-do the title! LOL

[gtaroblox101]

I could imagine a 50 speed

[vv41zx]

OMG I found the use of dolars:O!

[DaRKFragpawner]

yay Canadian COINS CANADA FTW

[Haures66]

@DaRKFragpawner available in canada only. lol

[2608adrian]

Homopolar. As in gay. Hi Hi Ha hA

[MrfixitRick]

@2608adrian

You must think homogenized milk is gay too??

[LordPS3]

@2608adrian you stupidity knows no bounds

[2608adrian]

@LordPS3

Anal.

[LordPS3]

@2608adrian dumbfuck

[MrSmithyistheman]

CAN I USE A MAGNET OUT OFF A SPEAKER /

[MrfixitRick]

@MrSmithyistheman

See my movie "Two Hearts Become One" ( youtube, etc./watch?v=nERQQl7KlHc), where I use a 10 inch bass speaker to make a homopolar motor. The speaker magnet won't work for this particular experiment.

[TheBFMVOWNS]

@MrfixitRick ok.. dont take this as a trolling attempt but why the hell do you work on stuff that has homo word in it ? Btw am not saying your homo but it's just weird... lol

[MrfixitRick]

@TheBFMVOWNS

I've always been really interested in magnets. I saw a homopolar motor years ago, and was intrigued by the design. I decided to make videos. I was going to call it a "unipolar" motor to avoid the controversial "h-word". But it shows in wiki as homopolar motor and generator, so I got over it. And other folks should too!

[TheBFMVOWNS]

@MrfixitRick 100% agree.

[ownedbystealth]

"lets try 5th"

clack!

"now we went over speed on 5th gear and ended up in a catastrophic failure"

hahahahahahah not sure why i laughed so hard. but i did!

[XXXsziliXXX]

magyar pénz :D

[muhusidg]

cool.

[Mrmasternik]

Your enthusiasm when the battery falls in fifth gear is quite amusing

[KooFootballMan]

Zamber is that you talking?

[Mogliz0rz]

It sounds like a printer/fax machine.

[begginersatanist]

haha kerthunk sound

[gabrielallgardh]

so cool



[4NTIDOTO]

waht do you do tomorrow ??? i´m mexican city, i´m speak spanglish

[MrfixitRick]

@4NTIDOTO

I'm working on a remote-control water vortex that is 3 feet (1 metre) high. It will glow in the dark for Halloween.;)

Other videos coming soon...stay tuned and subscribe!

[MuLtiHaZe11]

orale ey.. mexican coins.. now thats whats up(:

[PloufBIG]

ive been looking around on K&G magnets but im not sure whitch one to purchase (im doing a homopolar motar for the sc ience fair at school) please reply

[snazzysportstacker]

four words: ca-na-di-an!

[spathars]

changing the resistance using the coins



[fenerlihuss]

I like that its cool



[JohnDoeNext]

can i use any magnet??

[MrfixitRick]

@JohnDoeNext

The magnet has to be a powerful neodymium supermagnet to make this experiment work. They are available online at a place like K&J Magnetics.

[svircheto]

Does this drain the battery a lot?

[MrfixitRick]

@svircheto

Yes it drains the battery a lot. Sometimes the battery will get hot because of momentary drains of up to 8 amps. It will run for a few minutes on a strong battery.

[allmessedup3225]

it's awesome but does it turn by itself

[MrfixitRick]

@allmessedup3225

If it turned by itself i would be a rich man now. ;)

Such is not the case. ;(

[CariagaXIII]

@MrfixitRick lol

[TheMrBoosack]

im doing a simple electric motorin auto tech and im gonna try to make one of these or better

[MRWhiteFolksCakes]

This only works in Canada! lol ;-)

[MrfixitRick]

@MRWhiteFolksCakes

It's a Canadian invention, but still works in the British Commonwealth countries or Europe.

Seriously, folks in the US can use steel washers or magic shop coins to substitute for the magnetic Canadian coins.

[MRWhiteFolksCakes]

@MrfixitRick Excellent!  ;-)

[Weesamsungsony]

now if have to go find buliveris comment!!!!

[MrfixitRick]

@Weesamsungsony

To save you the time, the comment from buliveris was, "Fake :D"

[chessgeek40]

vin diesel XD

[xkiarofl]

The Mormons don't understand this motor.

[losghost]

Is this steven wright who made this video?

[applefanXXX]

sounds like an old car

[DPG4REVIEW]

he said homo!

[Naenphus]

@DPG4REVIEW aaaaaaaaaaand?

[DPG4REVIEW]

@Naenphus LOL

[wweking247]

are british coins magnetic

[MrfixitRick]

@wweking247

Yes, British coins are magnetic. The one penny and two pence have been made of copper-plated steel since 1992.

[MrStevestocks]

@wweking247 most of them yes

[greekpanther1]

@wweking247 1 penny and 2 pence are magnetic

[MrLorchi]

Motor Orgasm 4:00 !

[Rysin3]

It's good to see Jack Nicholson takes an active interest in science.

[shawnio]

@Rysin3 LOL

[6Seraph6]

lol That shadow makes me think of nasty things.

[bratstarr]

i hav some american coins and there not magnetic.......hhmmmmmmmm

[MrfixitRick]

@bratstarr

That's correct...US coins are not magnetic. Most Canadian coins are magnetic, or you can substitute various-sized steel washers.

[bratstarr]

@MrfixitRick thx :)

[ASfreshASaSUMMERham]

how many rps is 5 gear

[MrfixitRick]

@ASfreshASaSUMMERham

I believe 5th gear rotates at about 15 rps (900 rpm) max.

[jjak840]

terrifying voice.....dude 

[mute896]

@jjak840 imagein that in the middle of night telling u how to make a motor

[melvinonguarin]

Actually this is not a motor, it is very inefficient to act as a motor. All it does is to waste all the energy from the cell.

[MrfixitRick]

@melvinonguarin

See "homopolar motor" in wikipedia.

[agusbero]

yeah!!



[MrChandlerhodge]

i like 5th gear

[zangarkhan]

u sound like David Carradine "there u have it 5 point exploding heart technique"

[malcolm9001]

where do u get the magnet?

[MrfixitRick]

@malcolm9001

I get magnets online from K&JMagnetics. There's a link to them in the "show more" box.

There are other places online to get magnets, or they can sometimes be found at a hardware store or craft supply.

The magnet inside a shake-type flashlight will work in a pinch too!

[Ali2011mb]

watch my video

[bruceallenjay]

Anyone ever tell you that you sound exactly like the comedian Steven Wright? By the way, very cool experiments you put up on here :-)

[narutokyuubigo]

los gringos son putos¡¡¡¡¡

[Parrislspivey]

Once again, thanks for the quick reply. I'm curious, why does the battery spin faster depending on which one of the coins the copper is on?

[MrfixitRick]

@Parrislspivey

There is less resistance and more voltage as the radius of the coins decreases and they get closer to the battery.

Also, the closer to the magnet, the more powerful the magnetic field.

More power in the wire and an increased magnetic field equals faster speed.

[Parrislspivey]

Thank very much for the quick reply. Also, I borrowed 2 neodymium magnets from my science class and I noticed that coins did not response to the magnets unlike the ones in your demonstration. I had to use various sizes of washers instead. Might I just not have the correct magnet? Thanks again!

[MrfixitRick]

@Parrislspivey

The reason that the coins are magnetic is that they are Canadian. Most Canadian coins are magnetic. Washers will work too.

[Parrislspivey]

does the 14 gauge copper vs. say 18 gauge wire make a huge difference?

[MrfixitRick]

@Parrislspivey

The 14 gage wire should work a little better for torque and speed, as it has a larger magnetic field, and less electrical resistance.

[TheDSofTime]

What Gage is that?

[MrfixitRick]

@TheDSofTime

I used 14 gage solid copper wire wrapped around the coat-hanger stand. The coat-hanger must be scraped or sanded where the copper wire makes contact with it.

[TheReasonWhyGuy]

I'm curious... do you know what kind of torque you get out of this, and what or any other way of conveying how strong it is...

[MrfixitRick]

@TheReasonWhyGuy

The torque is likely in the realm of 1/10ths of an inch-oz of torque. It is approximately 1/1000th of a horsepower. You can feel the stall torque with your hand, and a finger rubbing on the magnet will stop the motor when running.

I'd say, if curious...try it!

[TheReasonWhyGuy]

@MrfixitRick I'm looking to try this, but I want to know if you know how to make it stronger...

Would increasing the magnet strength, volt/amp-age or the conducting wire length help?

Would all of these things help? Also isn't it true that the battery doesn't need to spin, that you could just attach a wire of sorts to create a proper flow?

[MrfixitRick]

@TheReasonWhyGuy

To increase the torque generated, increase the magnetic field strength (i.e. use a N52 strength neodymium magnet of the biggest size practical) and increase the current. A longer length of conductor in the active magnetic field will generate more torque.

Increasing the voltage increases the speed, but not the torque.

See my other videos like "Homopolar Hearts" to see the wire spinning instead of the battery.

[TheReasonWhyGuy]

@MrfixitRick "Increasing the voltage increases the speed, but not the torque."

Wait, but how does it increase speed without increasing torque?

Isn't torque the angular force applied, and thus increasing the speed, being that the only limiting factor is friction, wouldn't that require that the force, torque, be increased?

I've also heard that the voltage of homopolar motors is limited in some way, do you know how this is?

[MrfixitRick]

@TheReasonWhyGuy

The way I see it is, the net torque is what is left over after friction and back emf are subtracted. The torque at maximum free rpm of an electrical motor is zero. (i.e. the input power is balanced by the friction and back emf forces.) With additional voltage, there will be a torque that accelerates the motor to the next maximum rpm level, at which point the net torque becomes zero again.

[psand1120]

SPEED 5 KILLS!

[pouelchnu]

Talk about draining a battery in 2 minutes ... :) Would it still work if you added a small series resistor (like 5-10 ohms) or does it really require all that current? Anyways, clever design.

[MrfixitRick]

@pouelchnu

The resistor would restrict the current which is necessary for the motor to function. The motor might still turn but much slower.

The commutator connection saps a lot of power, and could be improved for longer running. And the hanger bearing point could be better for less resistance.

[laurJUSTasimpleboy]

i don't have money i am a poor guy :))))))))

[MrfixitRick]

@laurJUSTasimpleboy

What do you need money for? I made this video with a magnet and a handful of change when I was unable to work and totally broke. Now it has over half a million views!!

As Nikola Tesla said, ""No big laboratory is needed in which to think."

[supahfly4536]

does the wire get hot after all the spinning...because i got a paper clip twisted it and just put it on a AA battery and it got hot after all the spinning

[MrfixitRick]

@supahfly4536

A steel paper clip will have more resistance and heat up more than a copper wire. Usually a steel wire won't let the motor work due to sticking to the magnet. Use a heavier copper wire to avoid heating it up too much.

These homopolar motors can get really hot.

Be careful or be burned!

[RevolutionVivi]

CANADIAN COINS FTW!

[justasic]

Where did you find magnetic currency? U.S. Currency isn't magnetic..

[MrfixitRick]

@justasic

Canadian coins are mostly magnetic. There are also magnetic US coins available from magic shops.

[MusicManiac931]

Dude imagine riding a roller coaster than spun as fast as that one little battery did LOL. Awesome motor though!

[Mrdavid989898]

it must have exakly that kind of magnet?

[MrfixitRick]

@Mrdavid989898

This experiment needs a powerful neodymium magnet, in a 3/4 inch to 1 inch size shown.

[charleshood97]

that is awesome

[scavanger96]

this is realy nice if u had smothed out the metal more the moter wold have spindd fast er and if u maby would put somthing under neeth it it would have more blaince;)

[MrfixitRick]

@scavanger96

Yes, there are ways to increase the power and smoothness of this motor. For example, the Navy makes 25,000 horsepower versions of this homopolar motor using supercooled superconductors.

If you have some ideas, I'd suggest you try them with your own simple homopolar motor...you may discover the best new motor design!

[fringeless]

@scavanger96 What is a moter? Also, what do the following words mean: realy, u, smothed, more, spindd, maby, somthing, neeth, and blaince. Are you smoking crack, or did you not pass the following grade levels: 3rd, 4th, 5th, 6th, 7th, 8th, 9th, 10th, 11th, and 12,

[Turtan4]

How about "Heteropolar motor"?

[MrfixitRick]

@Turtan4

Most electrical motors are actually "heteropolar", in that they use reversing north and south pole forces to turn the rotor, as opposed to the unipolar induction of the homopolar variety.

[Turtan4]

@MrfixitRick

AHEM... I knew that.

[Ihateoldyork]

@mrfixitrick if it is really possible to make a moving motor just from a battery and magnets and wires and coins, couldn't the same idea essentially be applied to motor vehicles perhaps only using a stronger battery, larger/stronger magnet, more/stronger wire and/or a larger equivalent to the coins you have used here? Could this possibly allow vehicles to operate without the need for gas?

[MrfixitRick]

@Ihateoldyork

The homopolar motor is like other motors and needs fuel...in this case electricity. A car motor could be made in this manner, but it would require lots of electrical power to make it run, similar to other electric cars.

[themassau]

@Ihateoldyork this motor has a rather low efficienty (its an old motor) so you would be better of whit a newertype of electric motor. some AC motors have efficienties up to 90+ % i do not know obouth dc.

[MrfixitRick]

@themassau

This motor is inefficient and it heats up. The navy uses twin 25,000 horsepower DC homopolar motors in the latest ships, and at 98% efficiency, they are among the most efficient motors in the world. They use supercooled superconductors to keep the heat down.

[ubed78692]

which type of magnet u used please tell me

[MrfixitRick]

@ubed78692

The magnet is a 1 inch x 1/2 inch neodymium supermagnet. They are available online at a place like K&G Magnetics (link in the "Show more..." box)

[redthunda1]

hahahaha you blew your engine haha lol

[ratchet900able1]

that was awsome thank you

[laudiumWP]

I don't understand why its 5 speed? I mean, can't it be like a 3 speed or 2 or 10. ?!?! I don't get it.

[MrfixitRick]

@laudiumWP

You can make it any number of speeds you wish. I chose 5-speed because most auto trannys are 5-speed. And any more coins will make the motor fall off.

[themassau]

@MrfixitRick could you put a cone on it and go let the speed be variable so no levels but linear speed increase.

[MrfixitRick]

@themassau

That is correct.

[lesleyhenriquez]

@themassau That is a cone CVT. CVT = continuously variable transmission, some newer cars and tanks have it. It is very efficient.

[themassau]

@lesleyhenriquez damn it i'm always to late whit ideas nor do i have the capital to make it. :)

[lesleyhenriquez]

@themassau Oh but there are about two dozen of types of CVT, all with specific pro's and con's. If you can come up with one that is particularly worthwile, it will make you money.

[themassau]

@lesleyhenriquez k an other question would this motor be possible to make if put the magnet between diamagnetic so they will float an than use a very high voltage so you don't get the friction of the wire. or doesit require a verry high current to turn?

[lesleyhenriquez]

@themassau Either you mean magnetic frictionless CVT(which exists already) or you mean something else that you will have trouble pulling off using the 12 volts a car typically provides(if you mean what I think you mean), although some newer types use 48volts. Could be I misunderstand. Either way, engines and trannys are not really my forte.

[themassau]

@lesleyhenriquez i actually mean that you use a really high voltage like 1kv so you don't have to touch magnet whit the wire. but the problem is if this motor need high current than the engine will not turn. the wire create a lot of friction in this engine if you lower it than the efficiency will go up. and you just let it levitate whit diamagnetic so there wont be friction of the bearings.

[colt45y]

how did u pick up the penny with the magnet ?

[MrfixitRick]

@colt45y

The secret is that most Canadian pennies are magnetic.

[MrYouprick]

5th gear spazz attack :)

[astraelios]

Leave the homo's alone...

[vacer25]

4:03 FAIL LOL (don't mean to be mean)

[vacer25]

btw the "two dollar coin" is a toonie!

[MrfixitRick]

@vacer25

That's right! A toonie can also be called a double-loonie, shortened to "doubloonie".

[videosparkse]

eu vi uma moeda de 1 real ali >>>>> kkkk

[buliveris]

Fake :D

[MrfixitRick]

@buliveris

Not ;)

[BJKproductions878]

how the hell are those coins stickin to it?

[MrfixitRick]

@BJKproductions878

The coins are Canadian, and mostly made of steel !

[BJKproductions878]

@MrfixitRick sweet.

[babalaguchi]

@MrfixitRick  canadians.. haha

[ymhangel61]

I have 1961 canadian pennies and they are not magnetic..i just tryed a few on a big magnet and they are dated 1961 so i guess maybe the older ones are....i d k ..

@ymhangel61

That's right...Canadian pennies before 1996 are made of 98% copper and are not magnetic. About 1/2 of the Canadian pennies since then are magnetic.