Added: 4 years ago
From: MrfixitRick
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  • Your spheres are making an epicycloid with a phase lag. Try marking the large sphere with a magic marker. Fun video.

  • @Cosmickev101

    And could you make the pencil rotate backwards to the rotation of the magnet underneath, as seen in this video, or did you get that far?

  • can you point me to how to make on of those turbines 

  • @patmac573

    To build a Tesla CD Turbine, see my instructions at Instructables. Link is in the "Show more" box under this video. I highly recommend Instructables for those who like to build things!

    My Instructables member name is "mrfixits". 

  • @MrfixitRick  just overlooked it thanks.............

  • you need to apply fluoro lumenscent paint to the magnetic ball. This will allow viewers to easily view the pattern made by the magnetic ball in the bowl. Attach an rpm indicator to the turbine and tell us what type of magnets and their strength and properties.

  • @MrPhfaty

    Thanks for the suggestions. Unfortunately, that turbine blew up a couple of years ago.

    Perhaps it's time for a new turbine, and to duplicate some previous experiments with more exactitude.

  • @MrPhfaty

    The 6 magnets on the top disc inside of the turbine are 1/2 inch x 1/2 inch neodymium cylinder magnets in N52 Grade. They are all positioned "North up".

    The sphere magnets in the bowl are 1/2 inch and 3/16 inch neodymium in N42 strength.

    I get magnets from K&G Magnetics. (link in the "Show more" box)

    The rpm varies from 50 to 900 rpm, and yes, a tach reading would be helpful in this experiment.

  • This certainly helps in trying to understand how the bodies in the solar system work in revolving around the sun. Very nicely done Mr. FixitRick!

    By the way, you've inspired me to build my own CD Tesla turbine :)

  • @trdjunkie

    Glad to hear I have been a source of inspiration!

    The Tesla CD Turbine can be finicky to build, but is a ton of fun!

    Build instructions are available at my site at Instructables(dot)com under member "mrfixits".

    (link in this video's "Show more..." box)

    Let me know if you have any problems or questions.

  • bucky balls :)

  • FANTASTIC.

  • ( ball cannot spin that fast because of centripetal force , air , and glass friction) , why backwards? magnet before is stronger attratxcs, magnet that pulled ball is weaker ,

    as in previous posts , look at the car rims... cheers!

  • ball cannot reach speed as magnets , the field thats generated when going slow has controlable magnetic surtucture, when middle speed reaches ball goes as 3 uncompleted circles, rotating (in theory this would be statical) very slow(circles) thats where 6 magnets , are acctually 3 matching same postition in time where ball is passing

  • I think ther is some friction causing some of this

  • ever looked at a car's rims while the car is moving? they appear to rotate the opposite direction of the wheel once a certain speed is reached. yeah. that's what your magnetic fields are doing. the magnets are spinning so fast in one direction that they can match the rotation of slower magnets that would be moving the opposite direction.

    the ball can't move as fast as the magnets at this point, but they can match this seemingly backwards rotation that they're picking up magnetically.

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  • Could it be super imposing waves? At different speed the magnetic waves have different wavelength. Certain speeds would produce wavelength that have harmonics with the bowl's diameter. It's the same principal of vibrating waves in a string fixed at 2 ends and sound waves.

  • i noticed when the speed jumped up really high the ball couldn't do a full circle fast enough so it went into a different state, like a star pattern, like a spirograph, not sure wether 5, 6, 7, points, etc. the reverse rotation is amazing. must be frequency or spin related. I bet if you got it really, really fast it might levitate or fly right out

  • i noticed when the speed jumped up really high the ball couldn't do a full circle fast enough so it went into a different state, like a star pattern, like a spirograph, not sure wether 5, 6, 7, points, etc. the reverse rotation is amazing. must be frequency or spin related.

  • I think the arcs that are created in the part from 7:41 is due to inertia, (the ball is "trying" to continue in the initial direction) and the magnets pulling the ball back but instead of the same magnet pulling it back it's a different magnet. Sort of creating like an altered revolution. I think that if there was only one magnet on the turbine the ball would revolve around it in an ellipsoidal path.

  • Just a shot in the dark: What if the opposition of the fields created by the rotating ball causes it to shoot in the direction reverse the rotation, since the field on which the fixed magnets are rotation is always the same polarity.

  • The spinning of the ball is probably do to simple friction. As the ball rolls on the surface of the bowl, it spins. My thought is that it has nothing to do with how planets rotate around a star. I've never heard of scientist relating the speed at which a planet spins to the speed it rotates around it's star.

  • @cassova To further explain the backwards spinning. If you think of looking at a car wheel as it spins. As it goes faster, it looks like it spins backwards. This is because of our point of reference (spaces) in the wheel seem to blend closer together. This is similar to your placement of magnets. As it speeds up, the friction of the bowl prevents the ball to keep up with spinning magnets and in turn decides to find the next closest magnet (the one behind it) and then spins backwards.

  • DIZZY!!! Kewl bro

  • question: are all the magnets the same size weight and equal polarity?  if not then that could explain the interesting effect. plus the ball has no set track , so it's weight seems to be being pulled by sentripical force, as the magnets pull it back. at 3;25 (when the turbine is stopping i noticed the cds wobble, which would create a double wheel spin at high r.p.ms., causing the ball to be pulled by two rings by the same one ring spun magnets. plus the ball is being spun by a passing magnet..,

  • @xavier1451

    The magnets in the video that look the same size are of the same size and same magnetism.

  • faster the ball will roll (but with less torque) until the ball reaches perpendicular and the ball stops rolling completely

  • @jonjoy1999

    Thanks for the excellent description of the principles involved here.

    The fact that the ball rotates faster until it stops is still, to me, quite a concept...even though I've seen it with my own eyes!

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  • @MrfixitRick what amazes me is that the ball actually counter-revolves against the turbine magnets. I have seen this effect before with vibrations, but I'm not certain the same physics applies here. I have to admit I have no clue why the ball revolves in reverse. however as for why it speeds up, I think that's because as the turbine rotates at a high speed, the field passes too quickly for the ball's inertia to match the speed of the field, at lower speeds, the balls inertia can "jump" into the

  • @MrfixitRick field and speed up, with the ball leaving the field before it has a chance to decelerate. this would happen until the ball reaches a speed where going into the field imparts the same energy as leaving the field imparts the reverse amount of energy

  • friction between the ball and the surface. the reason the ball turns in this video is because the south pole of the ball is being repelled by the south poles of the other turbine magnets, while the north pole of the magnet is being attracted by the south pole of the attached turbine magnet., this causes an angle to be imparted on the ball's magnetic axis, allowing the ball to roll, even at very low speeds. it should be noted that the closer to vertical the magnetic axis is to the surface, the

  • when the ball is at standstill the north pole of it would be directly facing the south pole of the water turbine, which should make the pole axis of the ball perpendicular to the surface of the bowl. if you were to rotate the turbine, the ball would slide along the surface of the bowl, without rotating, as long as the angle between the pole axis and the surface was perpendicular. if the surface was not perpendicular, the ball would rotate around the axis of the pole because of the

  • Magnets are alien technology given to us over a thousand years ago. I don't try to understand them.

  • MAGNETIC BALLS HAHAHAHA sorry just had to throw it out there

  • its just the friction of the sides of the bowl

  • you know how when you see a fan spin so fast it appers to be spining the oposit way. same rule exept its magnetic waves and not light

  • I think the shape of the M.F is six point into star and the glass bowl only allow the ball run flat as 2D, what if u fill the bowl with water? The spinning field not actaully lead the ball instead they disturb it, if the ball is fixed, the air molecule would spin instead of the ball i guess....

  • hey man ...cool experiment..

    i think u can think of applying this strange phenomenon of opposite rotation in braking system....it will be cool to see it with speed systems....

    it was really nice to see this....

  • cool way to whip your eggs :D

  • First its mostly just rolling. The extra magnets actually increase the by making it lean.

    Second the ball changes direction because once the magnets start spinning fast enough it is less resistant to move the opposite direction. The ball gets pulled towards the magnet going to it. The ball's momentum lets it overcame the pull of the magnet in the opposite direction.

  • thats pretty strange.. but only cause i dont know how it works.. makes ya wonder if its the same with planets rotating and atoms and how they work.. interesting

  • You may have something with the reverse rotation of the ball. I'd be curious to know if that co-related with the reason why some planets orbit in the wrong direction within their solar systems.

  • BUT, before the ball could even stop the next magnet is already near it SO the ball instead of stopping and try to go with the magnet that just passed, it will go towards the next magent and so and so and so making it go in the COUNTER direction of the magnets below it. And this has NOTHING to do with earth rotation BTW.

  • he never said it had anything to do with the roration of the earth he said that it was a similar phenomona heppening there as it happens with our earth and his right

  • "he never said it had anything to do with the roration of the earth he said that it was a similar phenomona" What?, isn't this a contradiction in the very same sentence?. And again, this "phenomena" has nothing to do with earth rotation.

  • HE didnt say anything about the rotation of the earth affecting the the magnetic ball He just said that The rotation of the magnetic ball and the rotation of the earth ar similar and that is true because gravitational fields and magnetic fields are very similar

  • I'm not even going to bother explaining. Read physics, specially electrical fields, electromagnetism (right hand law) and perhaps some Newtonian physics and THEN read geophysics. For god sake, really...

  • Before u say this i suggest u read those things urself as u seem very uneducated in that area and lol u added a pretty well known fact "(right hand law)" to make urself look smart congrats!

  • I'm a bachelor in physics you idiot. Why you think I'm sugesting you... nevermind. I don't even know why I'm arguing to a 12 year old fat greasy kid over the internet.

  • "i'm not even going to bother explaining" Hmm to me its just another way of sayin I dont know shit of what am i talking anout.

    I'm really happy for u for getting thru all those exams (cheating). But u should really aquire some real knowledge aside from ur shiny diploma. "12 year old fat greasy kid"U dont have to describe urself to me.

  • Exactly, at least you got that.

    Yeah, cheating, that explains why I don't know what I'm talking about nor know about physics or Newtonian or anything or even SPELL CORRECTLY. "Real knowledge"?, really, I can't understand what that even means.

  • Oh lol U dont know anything about physics AND u dont know how to spell. Man check ur facts before U say something stupid. BTW "real knowledge" Is spelled correctly and yes u can look it up urself if u still feel the need to argue with me. And my native language isnt english so i have to admit that i do sometimes spell wrong.

  • U = you; UR = your; Is = Without capital "I"; urself = yourself; "me. And" There shouldn't be a point there or take out the "and"; "isn't" missing " ' "; "i" should be capital letter. I can spot every single misspelling you've done so far but it'll be boring. Yes, I don't know anything about physics, yes, I don't know how to spell, yeah yeah my facts are all bad and I meant I don't know what the hell you meant with "real knowledge". Forget it already.

  • Damn man even though I said that english isnt my native language you still complain about the mistakes that I have made. And these aren't even serious spelling mistakes like U=you I just dont bother writing it out fully. Its like I'm supposed to write a formal letter or something here.

  • English isn't my native language either, and having correct spelling is called "manners". Nevermind already, be happy in your redneck magic physics world with it's "real knowledge" and whatever the hell you want to. I'm not going to keep replying.

  • "redneck magic physics" wow, you must of caught that I'm American from me saying that english Isn't my native language. And excuse me if my "manners" arent sufficient enough for you. Have fun in your ship of right and I hope that someday you will rescue me from my sea of wrong.

  • you sure don't have a bachelors degree in english.

  • It's not counter rotation aliem magic trick, it's simple lag, the stupid ball can't go as fast as the base under it, so when one magent at the base rush under the ball, the ball would normally try to follow it, but before it could even move in that direction the nex magnet is CLOSER to the ball, so the ball moves towards the next ball instead the one that just passed, when this "next ball" passes the ball will attempt to brake and go the other way (in the direction the magents are going)

  • goodfingerz, you must RELLY love to type

  • universal expansion, the universe is expanding in all directions. this is the illusion of gravity. since magnetic fields are bias in the flow of space then magnetic fields can be used to change the flow of space and therefore simulate "gravity" in directions we do not normally experience. Tesla's zero time generator probably calculated the origin of the universe for reference by calculating the expansion of the universe by measuring gravity and the speed of light locally.

  • "gravity" pulling matter and not light, or warping space(that doesn't impede light) to bend light is therefore preposterous and it must be space itself acting upon light and matter.

    If warped space can alter the path of light then it must also affect the path of matter and then space must be able to warp from a field to a moment to produce the effect of gravity on earth. but that in finite, how is space constantly warping toward the center of mass? it is actually expanding. universal expansion

  • it does impede light actually

  • @flagman57 That's what blows my mind if it does then light should go faster than the speed of light when there's no impedance. I think the gods of science jumped to alot of conclusions to fill out the model. You can only do so much right?

  • thats the amazing conundrum @goodfinger. techinically speaking, light does go faster then the speed of light.

  • Here's a suggestion, gravity is not a force. gravity is what happens when space flows and draws matter by friction.

    What?impedance of space??? yes if not for the impedance of space, light would travel at infinite speed in all directions. and light could not form a spherical wave and travel on a path and thus matter would not exist. if "gravity" bends light how?gravity warping the space light is traveling in? if space doesn't impede light then it cannot alter the path of light

  • So when your moving the magnet your moving it out of the field, into clean space and a new field propagates. when you rotate the magnet in an orbit, your moving the magnet back into the earlier field that is collapsing. this is called stacking the field and a modulated magnetic field grows from the moments of intersection. it appears the field stacking modulates the bias in a serpenine torsion field that evolves as the moment of intersection increases in frequency

  • Initially there's a stable mag field. mag fields manifest in the space the magnet is in, not in the magnet itself. In an electro-magnetic field it takes a measurable time for a mag field to expand and collapse, your coi doesn't move but you can modulate the field electronically.

    with a permanent magnet you cannot turn off the field but when you move the magnet out of the field into unbiased space a new field forms and the previous field collapses. the field itself does't move its bound in space

  • here's a suggestion... we are revolving around the sun because of gravity... not because we are in some kind of bowl with magnets underneath us... it's not a similar kind of phenomenon

  • Here's a suggestion back...read the latest physics. Gravity is caused by counter-rotating magnetic fields. See the Youtube videos with MT Keshe.

  • 2:00 It's gonna blow :)

  • What a load of crap. There's nothing unusual in here. Well, maybe if you're an uneducated moron with 4 years of schooling.

  • Then can you describe this phenomenon, in common terms, for us common folk?.

  • This is so easy and not strange att all, dont complikate the obvius, you have friktion gravity and magnetic fields working agains eachother and it is simpel mecaniks only

  • you should see if you can make a fitting for the ball to force it to rotate in the opposite direction it tries to naturally, via motor or some similar means. Might produce interesting results

  • Good suggestion!

  • I have a question on the magnetic ball you used on the turbine.

    How big is the ball, what grade is it and what size are the smaller balls attached to it at the first part of the video?

  • I used a 1/2 inch sphere magnet in grade N42 neodymium. (#S8 from K&J Magnetics) The smaller ones are 3/16 inch neos in N42 strength like K&J #S3.

  • You need better documentation.

    line the bowl with paper and ink the ball to trace it's pattern. Or do some clever variant thereof. Mark the rotation speed on the resulting linear model. then note things like ball mass, magnetivity, etc etc.

    When everything's taken into account, then work out the math and apply a theory.

    If you don't do this it's just speculation and wonder. It's irresponsibly improbable that you can strongly relate this phenomenon to event horizons or quantum gravity.

  • i see

  • what is that thing that you are controling like if you were putting in water at the CD case-thing

    and when you say its name, could you explain just quick?

  • That is what I call the Tesla CD Turbine. It is a turbine (like a motor) that uses the pressure of water to move CD discs around inside the case. The CD discs have magnets attached that make magnetic things attract and repel outside of the case.

    It is based on the disc turbine design of Nikola Tesla, who considered it to be the greatest of all his inventions.

    It was my idea to add the magnets.

  • So it's just water! Aha. I thought it was something else, sorry but we haven't learned these stuff in science. That's why I'm so curious.

  • The ball spins while it's rotating because it's on a surface being pulled by a magnet in a circular motion. When a sphere moves, it naturally wants to roll rather than slide because of friction, but the magnets prevent it from rolling by keeping the closest part of the sphere (the bottom) from changing as it would if it rolled freely.

  • crazy dude i like these experiments.

  • there is this magnetic fluid called Ferro Fluid look at a few videos on what it looks like in a magnetic field and you might see my idea

  • I know why it sped up.

    Slowing the turbine made the ball sink into the bowl. The deeper in the bowl it gets, the less distance it has to travel to make a complete revolution.

    I would compare this to how the moon rotates and revolves around the earth.

  • your video gave me a boner keep up the good work

  • para kang tanga

  • may be some kinda sparkly magnetic martial might stay in the field to show what is happing. like kids craft sparkles not to sure if it would just stick to the bottom of the bowl but throw the ball back in and it will mix it lol just a thought

  • Not a bad idea...anything magnetic would just stick to the magnetic ball, but sparklies are likely plastic and might show some action.

  • hmmm if you filled the bowl with water and added iron fillings you would see the magnet beam change as it complied on it self

  • That's a good idea...I shall have to try that.

  • hi, nice video, joefish touched upon what immediately sprang to my mind when you made the parallel of the earth's solar orbit. out of the 4 energies of the universe (atomic, chemical, magnetic and gravatational.) gravity is the weakest (only a tiny amount of magnetic material can easily overcome the earth's gravatational pull) maybe you recreated in micro sized but similarly forced, the way we do orbit our sun, which is, albeit on a much grander scale

  • Yes, interesting ideas! There seems to be repetitive scalar magnetic effects from the microcosm to the macrocosm.

    Check out this video series of nuclear engineer Mehran Keshe explaining a new understanding of magnetism and gravity that will radically change our world...see YouTube/watch?v=wtf5bp76ArE

  • wow impressive, but be careful if it goes too fast it could break something.

  • due to the magnetic advance the ball semes to be repelled by the speed of the magnet's causing a revers magnetic feild to propel it in the oposit direction einstine would have fun with this our world is a stange place it will only cease to amaze us causining enlightenment throughout the time we spend here.

  • Cool! Couple of thoughts: The strange cyclic motion reminds me of a "hypocycloid" like the Spirograph I used to play with. As for reversing, I think your magnetic lag idea is right. There is a certain amount of friction preventing the ball from following the turbine perfectly. When the turbine exceeds the speed the ball can follow, the next magnet hits the ball slightly behind it, pulling the ball backwards. Also, I think the ball rotates due to friction. variation: try a teflon pot!

  • Thanks for comments!

    I think inertia has an effect as well as the friction on the surface.

    Check out SinkScience #11 "Mysterious Reversing Ball Magnet" YouTube/watch?v=HEY0jpsnwbg for more details on this effect.

  • I think the ball didn't actually go faster when you started slowing down the turbine. The speed remained constant while radius of curvature shrank so the angular velocity increased. I also think the ball prefers to go backwards because the angular velocity relative to the magnets is doubled. If you can imagine having an infinite angular velocity it would be like having a continuous magnetic ring so if you get more magnets and make a ring you should see the ball stabilize at a lower velocity.

  • Great observations!

    You may be right about the ball's constant speed and radius of curvature. The ball's speed in terms of RPM did go up; that is, the angular velocity and sound of rotation increased.

    It's the change in magnetic flux that moves the magnetic ball. A rotating magnetic ring has a constant magnetic field, and therefor would not change it's influence on the magnetic ball with increased, decreased, or no rpm at all. The magnetic ball would remain stationary in that case, I believe.

  • kkkkkkkkkkkkkkkk muito loco parabens

  • The effects you are seeing coincide with Kepler's laws of planetary motion. However, rather than gravity, you are manipulating the masses with magnetism. Check it out. What you have produced is similar to techniques used to "sling-shot" satellites/shuttles around planets to speed them up.

  • Yes, that is right. I've done some experimentation with a magnetic ball on a string that i will release soon in a video. The "sling-shot" effect is interesting, both in attract mode and in repel mode.

  • how it this and interesting effect? its basic magnestism applied in combination with s=v.t ?

    its a nice video though, you made an effort

  • Yes, of course it is basic magnetism, with induction, inertia, momentum, velocity, distance and several other factors thrown in.

    Personally, I was shocked and amazed to discover the magnetic ball preferred to rotate in reverse. I have watched it for hours. I find it one of the most interesting effects I've ever seen.

  • Here's a site that shows how one person did it. I would cut the steel wool finer. Imstructables(dot)com/id/3D-Ma­gnetic-Field-Viewer/

    Let me know how it goes!

  • Fine steel wool, cut up and placed in a clear bottle with mineral oil, seems like it could work ok as a viewer. I have a flat maple syrup bottle that should be fine. But do let me know on what you find; the bottle only works in some circumstances.

    Hehe, I see you have some notions about "job"!

    I've been self-employed and have had to make my own "job" for many years. But then the Evil Oil got to me and now I'm too allergic to touch most things. Seeking alternate income.

  • Perhaps you mistake me for someone who has money, hehe.

    I see eBay has a 12' x12" viewer for $29.95, but that will cost me well over $50 in Canadian, which unfortunately I can't afford after last couple of years with no job.

  • Good suggestion... so I just put mineral oil on my list!

  • (continued...)

    when the turbine spins faster than the ball itself can, then it goes backwards to catch up with the magnetic pull of the turbine... it is like... like I said, hard to explain because I don't know all of the technical terms. But I doubt this is the same reason why the earth rotates.

  • Thanks for your contribution to this enigma!

  • It is pretty simple, the bowl itself is not rotating along with the turbine so the ball has 2 forces working on it currently. It has the magnetic pull of the turbine and the drag of the bowl. To continue moving, the ball must rotate, either that or the magnetic pull has to be stronger than the drag of the bowl.

    Now as for the spinning backwards at a certain speed, I know how it works, but it is going to be hard for me to explain being I don't know all all of the technical terms...

    (continued...)

  • Would love to see on eof your own machines?!?

  • If you are on the west coast of Canada sometime, look me up!

  • Watch you teeth friend!!!

  • So the plastic cover doesn't interfere with the magnetism of the magnets? Does the Tesla turbine leak water when you have it hooked up to the fauset?

  • The plastic does not interfere at all with the magnetism. This turbine didn't leak even after an amazing year in the sink and a variety of experiments. It finally blew up when I overdid it in this video..."Tesla CD Turbine Bursts On Kitchen Table"

    YouTube/watch?v=EXo3e58rZ7U

  • are you from puerto rico?

  • Uh, no.

  • Why would you ask that when he sounds Canadian?

  • If you push a ball on the ground does it not rotate? Of course it does. Because this magnet is moving on the ground and it has a weird center of mass, it's going to rotate on that 'weird' axis.

  • lol if the ball spin faster it could be an egg beater

  • Did anyone think of the differant shape magnets from the turbine to the ball in the bowl.

  • FRICTION !! A great explaination.

  • friction?

  • Friction is only a small part of the picture. I believe. I've done the same reversing effect with a magnet inside of a styro ball in a bowl of water, and with a hanging ball on a string.

  • i think in out of my depth here

    whys the ball spinning round

  • Don't worry, lots of very smart folks are having trouble explaining this one!

    Have a look through the comments below for a diversity of opinion. Then check out my video SinkScience #11 for more on the mysterious reversing ball magnet.

  • use a flat pie pan to compare with bowl.

    I think the ball is going into that loop effect because it can not keep up with the magnets in the curvature of the bowl.

  • yea, what happens when you remove that black "buffer" so its just the turbine and the bowl? that would make the attraction stronger and maybe the ball could keep up.

  • Looked at this for 5 mins: The ball reverses direction because of NyquistShannon sampling theorem. The ball cannot keep up with the turbine and (you can hear the rattle) thus effectively sub-samples the magnetic field.

  • You must be involved with the electronics field. Are you familiar with other real-life examples of this phenomenon?

  • If you film or video a rotating wheel with a number of visible spokes, if the film/video's frame rate is low vs rotation of wheel, the wheel appears to run backwards. This is inadequate sub-sampling.

    Same concept here: the magnet is spinning far too fast for the ball to keep up (it's losing a lot of energy in the rattle).

  • i think the reason why it rotates as it revolves is because of the physical resitance between the ball and the bowl. So in order for the ball to revolve with the magnetic force it has to spin....a similar concept as a tanks treads

  • That is partially true...but in SinkScience # 11,"Mysterious Reversing Ball Magnet", I show the magnetic ball being dragged around without spinning.

  • i think in that case the ball still has enough momentum to jump from one magnet on the turbine to the next, until eventually it stops.

  • plz watch this rotation phenomena

    watch?v=sY6z2hLgYuY

  • 7:44 slinky

  • The "clover" shape is from the high RPM of the inner disks. When the disk turns at a high enough rate the mass of the ball is countered by it's actual weight so when the magnetic field is quickly spun around and "picks" at the ball instead of moving it, the velocity with the gravitational pull causes the ball to go in the opposite direction. Increase the RPMs by 100% and you might even see the ball sit still depending on the strength of the magnetic field through the plastic and the bowl.

  • Thanks for your comments! For more on this effect, complete with magnetic ball standing still, folks can have a look at my SinkScience#11 - "Mysterious Reversing Ball Magnet."

    Youtube/watch?v=HEY0jpsnwbg

  • hmmmm friction maybe be the cause of the ball rotating on its own axis, but at 7:07 it looks like the ball does a peel out effect instead of simply rolling (The ball is spinning fast enough to break friction). Also when it comes to the backward rotation I can think of a spinning track with platues and valley with a motorcycle speeding in the other direction. Maybe the ball is skiping along the surface of + & - instead of being draged along as it would going the same direction. I THINK!

  • I like the concept of a rotating track with hills and valleys. It's truly a strange phenomenon!

  • The fact that the ball revolves as it rotates is nothing special; the torque on the ball from the friction between the ball and the glass bowl creates rotation in the opposite direction. In other words, the surface of the marble touching the glass bowl is not moving relative to the ground. You could achieve the same effect by just spinning the ball by moving the bowl in a circular motion. The ball is "rolling" on the surface. The clover and reversal effects are more interesting, however.

  • Thanks for your observations! Check out my SikScience # 11 for more on the reversal effects. In that movie I also show how the ball gets dragged around (revolves) without spinning, and rotates only once per revolution!

  • can u get a large like glas surving platter kindof thing? so we can see its path on a even plain?

  • Very good point! It was something I was very curious about. You can see the reversing magnetic ball doing it's strange thing on a flat pad of graph paper, in my video SinkScience# 11 "Mysterious Reversing Ball Magnet" found in the More From:MrfixitRick panel to the right>>>

  • wow now that is really interesting! have u tryd to upscale it a bit? hit up some big reserch place for a grant and go do it in a feild somewea and run it in some kind of proportion to the earth revolving the sun, you could say it could be the reason for global warming haha link it to the decreased size of the path around the turbine before the change in direction occurd.

    but hey im just thinking outloud here

  • I would love to take this to the limit...but have no funds. I'm open to grant offers and donations...

  • unfortunatly i have no money to donate but get the word out theas gota be somone with the funds to take u all the way with this one

  • That's the spirit...thanks for your verbal support!

  • welcome mate, post a video if u do get the funding u deserve

  • I think you've got a mixer there

  • For a real man's mixer, (hehe) check out my "Tesla CD Turbine: Punch Bowl SuperStirrer" video to the right under More From: MrfixitRick

  • does it spin faster in water?

  • No, water spins the turbine slower than air. Water gives better torque at low rpm's, however.

    Water pressure and air pressure at the same time works well, as seen in my latest 3 videos showing a blender.

  • you don't care about the centrifugal force and the shape of the bowl ,so it's something normal that there is a flower shape patterns,it's not something unusual

    liadon666 explains it better

    it rotates on the other direction because there is much time-attraction from the magnet that is coming in front of the ball than the one that has already gone

  • Actually its because the ball is falling inside the catenoid region of the turbine magnet fields and dances around in there from magnet to magnet, getting launched out from one to the next. This is also the reason for the reversal of direction.

    It's an area I refer to as the event horizon:

    urad[dot]net/forums/gallery/di­splayimage[dot]php?pid=42&full­size=1

  • If that link fails try this one:

    urad[dot]net/forums/gallery/al­bums/userpics/N35_Field_Shape_­Chart[dot]JPG

  • Replace [dot] with . And remove any spaces or %20. There is a space after the al and another before the word Chart. (crazy youtube don't like hyperlinks :P) Maybe MrFixItRick can put the link in the more info :D

  • Ok, I put the link in the "more info" >>>

  • okey diamagnetic and eddy currents what is happening

    find video "spinning a soda can using eddy current"

  • Fact Dat! Fact Dat! Because for real real you can see the Three point wobble if you look closely it moves in a triangular direction or rather pattern.

  • ha ha

    yes its water what make it

    Water is diamagnetic like copper

    and water goes spiral ...

    something like that

    you know

  • no thats why the rotation is the same as the arm rotation

  • its because the botom of the bowl is the same circumference as the turbine

  • The bowl shape and size makes little differences in the way the ball goes backwards. I was able to duplicate the ball going backwards on a flat surface as well!

    See the next movie with more about this strange reversing phenomenon at:

    YouTube/watch?v=HEY0jpsnwbg

  • Did you ever video your ball on the string reversing?

  • Yes there are clips that go into the missing video #12. There was a phenomenon where if the string gets wrapped up even slightly, it affects the outcome greatly. I just recently bought some fishing line swivels to alleviate this and complete the video. Unfortunately I blew up my turbine in the last video and haven't rebuilt yet to try it!

    It was difficult, but not impossible, to get the reverse effect with the ball on a string...it seems to like some friction to work against.

  • Kewl, I hope repairing it doesn't give you too much trouble. I found that a bit of WD-40 on the swivels makes a huge difference in my string tests.

    We'll stay posted :D