Lenz's Law - Magnet Through Carbon Tube?
HTML-код
- Опубликовано: 6 фев 2019
- I'm back. In this quick video journal, I am answering some questions that I have been pondering for a while. Now I am off to order more magnets and pyrolytic graphite.
Other Projects: laserhacker.com
Support future videos: / lasersaber 
Наука
Oh my god hes alive! You do you man, it doesnt matter how long it takes for you to put out videos, everyone will still come back every time to watch. Goodluck to you man, keep it up!
Thanks. I will keep experimenting and sharing everything I find interesting.
@@lasersaber Missed you man :P love your video's
@@lasersaber we love man 💕🤗
@@lasersaber sir is grephite reduce lenz affect.
Pathetic. Comment deletion
you were missed
I think the reason it does not have the same effect as a Copper tube is due to the inconsistent conductive path for electrons. Electricity always follow the least resistance. This is easy for copper. It's just a straight line or the shortest distance. For the graphite, there are areas with high and low conductive areas so electric current follow irregular paths which produces irregular counter electromagetic fields.
If you were to make a coil based on graphite, then you are essentially forcing the electrons to follow a specific path that is identical to the behavior of a copper coil. I'm sure Lens law will become apparent. ANd oh, welcome back ......... You've been gone too long.
I think it has much more to do with diamagnetisim.
What about carbon fiber?
Agree 👍
1) The graphite rod you have is amorphous in the sense that all graphite sheets are not nicely oriented. Such "compacted" graphite is a poor conductor (much worse than copper) as evident from its resistivity - (between 3e-3 and 3e-6 ohm.m as opposed to 1.7e-8 for copper). This is a primary reason that resistors were mostly made from carbon in the last century. You cannot measure it with the multimeter, since the lead-wires of the meter are much thinner and much longer than the tube you try to measure.
2) If you can get your hands on HOPG (highly oriented pyrolytic graphite), it can be a lot of fun to play with due to its diamagnetism. It is also a better thermal-conductor than copper in-plane
3) For coils, stay with copper :)
1 that all makes sense, but a three digit reading, should easily show the difference, at a fixed voltage.
2 sounds interesting
3 bet there's better
@aditya mehendale So what do you think using a HOPG type of graphite to drop a magnet through a pipe of such material will it slow down the magnet or it will be faster due to HOPG diamagnetic properties?
@@billiardrichard6351 gut feeling: electrical conductivity will be dominant; the minuscule reduction in permeability (compared to air) shall not play a big role. Note: the HOPG sheets are optimized for thermal conductivity; not electrical. Also, how do you "weld the tube"?
That.. I find very very interesting.. and welcome back!
Hello sir, love to learn and just plain enjoy seeing what you are working on! You were missed, very glad to see you still sharing with all of us your curiosities. Can’t wait for more!
Thank you for sharing!!
Great to see a new video! It's been a while. :-)
I AM SO HAPPY YOU ARE BACK!!!! Love it!
Glad to see you back!
Wow, what a long time. Glad you are back too.
Very nice experiment. Thank you for bringing us along.
So good to have you back.
You're back.. Awesome
Hey good to see you're still around! Thanks for posting a video after all this time. Really looking forward to more.
Wishing you the best...
Thank God you're back! Hoping to see more of your helpful videos. :)
Welcome back!!
Good experiment, it blew my mind. Am currently working on a project based on your supercapacitor video. Thank you for sharing those ideas!
@lasersaber Good to see you and your insightful ideas back, and yes, let's keep experimenting.
That is a great question, I really wanted it to fall slowly. Great to see another video from you pop up in my subscription feed :-)
Glad to see you back, You Da Man
Welcome back!
nice to see your video again!
Really love your videos! I am mostly focusing on domes and structures that will last through time.
That's a really interesting theory! Looking forward to seeing what you discover.
Welcome back ❤️❤️❤️
Good to see you again :-)
Welcome back sir!
Also I forgot to ask sir. Will you be selling products on teslamaker.com/ ? I really would like to purchase a simple pulse motor.
I'm totally amazed, I was expecting the magnet to take even longer to go thru out! thanks for the video! it'll be interesting to see if if good enough to make a magnet coil!!
Great to have you back! Loving your soln setups and also the boost box. Have you made the next version of that yet?
...and he is back with another big life question answered! We missed you...
*Hi lasersaber,*
I am an Electrical Engineer. According to the established theory of EM I did some calculations and I concluded that you have to increase the carbon graphite cylinder wall thickness x5 from the one you have constructed in order to observe the same magnetic breaking Lenz Law effect as the copper tube you used in your experiment. For example, if the wall thickness is 3mm of the graphite pipe you have to increase that to 15 mm. I suggest you do the experiment again so your don't get wrong conclusions which will mislead your future experimentation. Good luck.
Markoul11
@Lasersaber, I'd love to see a follow-up on this!
Welcome back
wow you're back, awesome :)
Eyy welcome back. I like the way you think.
The tube is an electrical load! When I think of resistors I always thing of higher values as being "bigger resistors" but really they are the smaller load. If you take a brushed motor, solder a resistor to it and spin it by hand there will be very little force resisting you but if you short it out and try to spin it you will feel a significant force resisting you. The shorted motor is a higher load in the same way that the copper tube is a higher load for the magnet. One way to get more brake for you buck would be to increase the speed that the magnet enters the carbon tube or to just have a longer tube, it could be that the braking effects are so small that they are not apparent until near the terminal velocity of the magnet in free air.
Super cool idea, and I love the tritium motor!
Wow you're back! Been a while. :)
Nice to see you again! :D
The pyrolytic graphite should work as a core to wrap magnetic copper wire onto. Both would work hand in hand. I'm glad to see your back and safe, we were all worried about you after not hearing from you for so long.
Thanks for another great video!
Thanks man, you answered many peoples question which was, are you still alive and well, We are all happy to see you are ok. I got the fall rate right on the graphite but I have no clue on the other. The little motor is really cool.
He's Back!
Hey! Good to see you back! I was concerned that something had hep pend to you!
Looking forward to the next video - some of the commenters gave some good hints...thanks. but I am looking forward to your future experiments with the carbon to help me get the ideas expressed in these explanations.
OMG you're still alive!!!!
Nice job, man!!!
YOU'RE ALIVE!
I’ve been wondering the exact same thing!!!! Yes. Try making a carbon transformer as well. And welcome back!!!! Don’t be surprised if all your new videos get blocked, demonetized, or taken down though...
i know from some experimentation on my own that Carbon and especially Graphite tends to have directional difference or rigid electron path or i guess what you could call a grain that it will conduct in certain directions better than others and that most tubes and are sheets laminated together with resin so that they are good conductors along the length but do not complete the circuit needed to exhibit the lenz effects that you see in the copper pipe that is generally extruded so its a complete tube instead of more of a rolled up newspaper where the path of least resistance is along the length. Rods of Graphite tend to be compressed powder and resin an i'm guessing there are lots of inconsistencies in resistance along the length unlike the uniform lattices of the metal. But i'm by no means an expert.
I stand to be corrected if wrong. I am not well studied enough on the topic yet, neither have means to experiment for the time being. However, it is interesting if by that it means graphite/graphene solid states can be polarized, in such a way that it behaves in a similar manner to rectifiers/diodes. I wonder if there is any voltage reading or any kind of induction going on in this particular set-up with no Lenz effect. If so, how does that compare to a 90 degree phase EM circuit.
Whoa, you're back! Welcome back, was worried something happened to you. Looking forward to more videos.
Thanks! Glad to be back at it. More coming soon.
@@lasersaber Love your generator/motor videos, probably watched them over a hundred times over the years. You should experiment with hoverboard motor wheels, they're brushless and amazing for power generation with super caps. Can pick them up cheap from used hoverboards! Also, is the tesla torch project still ongoing? I love the idea of it, and I was hoping to see you iterate and make it even better. It would be awesome to pick up one of those boards you made for the V2.
Thanks for the hoverboard idea. I still have a ton of Tesla Maker stuff in inventory. Maybe I will put it on eBay in the future. I got spread too thin in the past trying to sell projects, do a full time job plus do experiments.
Hey, I am glad you are back, I also look forward to the findings you have on graphite and it's relations to magnetic fields. I agree with one of the other comments that the lack of eddy currents is most likely due to the irregularities in the graphite compared to the copper or aluminium. If you were able to find a way to reorder the system to make it more uniform it might make a difference. Keep experimenting.
Welcome back good sire and a great question to ask nature. From some of my own past experiments I have done, I notice different effects depending on the carbon alignment. This is delving into the realm of nanotechnology and how to develop crystals in different orientations. Don't be a stranger my friend 🙏
It does make sense that the magnet went through quick. This is due to graphite containing more positrons than electrons, 'if I'm not mistaken'.
So, of course it would slide through faster, the graphite is more net positive and the Electrons are attracted to positive charges.
The main thing here is the fact, that resistivity of graphite is ~1E-4 Ωm while for copper it is 1.7E-8 Ωm so it's still 10000 times less conductive.
Making coils of graphite may be interesting as the electron-hole pairs keep generating and recombining, trough the resistance would be really high. On chip inductors are a thing but i think they use metalization layer or metalized polysilicon.
@Reno Simpson 1E-4 is just a fast way of writing 0.0001 (1·10¯⁴) that many programs and fellow robots understand. Ωm (ohm·meter) is a unit of resistivity. You can derive it form the formula for resistance = resistivity · length / crossection -> Ω = Ωm·m/m².
@@jellyfishjelly1941 You took your time to explain fully and nicely to him. You deserve a thank you from me even I didn‘t need help reading them. Thank you!
Nice to see you back, any other flying vids coming up?
Good to see you back making videos. Very interesting experiment. I've seen magnetic induction heaters heat up a copper pipe that is close to the magnets as they spin. I wonder if graphite would heat up. You wouldn't need a copper coil, just a big hunk of graphite like you've got
Try different types of graphite. Glad you are back.
now I have to wait to find out
While you tested linear resistance, keep in mind that your graphite tube was much thicker than your metal ones. For Lens' law, it's current AROUND the tube, as close to the magnet as possible, that is important. Looks like the ID is about 1cm, so about 3cm circumference = L, and lets say that A = 1mm*5cm for both to look at "just near the magnet" in both cases. Copper resistance would be 10uOhm and carbon would be 720uOhm. 72x less current all else being equal. And that doesn't really even get into the other issues mentioned by others. Interesting experiment!
Think this might be the first video you've posted since I subbed to you, welcome back! Found your channel through Isles of Derek, all the best with your creative endeavors :) I don't suppose you'll go back to making adventure games anytime?
Welcome back! Probably because the magnetic domains of the graphite are all over the place, canceling each other out. Try to magnetize it and see if you will get a different result.
Old people used to know that there are "reflectives" (metals) that push or pull with magnetism and neutrals (plastic, wax, etc) that dont react. So if iron and aluminium are in the ends of that spectrum, then carbon is the most neutral "reflective" and it needs way more extreme conditions to measure its full accurate properties.
Glad to see you back! What if you made a hybrid material? like laminating the graphite with copper or aluminum
Glad to see you back! What if you could make a tube or a coil with Mecury, would the Lenz effect hold.
I think there is alot left to learn about magnetics and electromagnetics , there has to be something more out there, something we do not know yet! Something that will change the world, even more than splitting the atom! Keep it up!!
I'm so glad you're here. I've missed your videos. I've always thought about using carbon for things in place of other conductors (electromagnets, motors, etc) but I feel that this is not going to work (I haven't watched the video yet). I think it may be because of the non homogeneous nature of the graphite vs the metal.
nice stuff did you try doing a generator out of this ??
Thought you were a victim of one of your experiments. Glad you're back hopefully it won't be so long for the next video.
YES!!! He lives!
I believe the reason for the "absence" of Lenz's effect is simply that graphite has much lower specific conductivity than metals resulting in the eddy currents too weak to create a substantial opposing magnetic field.
Hello back
Try printing pancake coil with graphene ink. Also trying to make a bowl-shaped electromagnetic graphene coil. Another thought would be to coat fishing line with graphene conductive ink and then insulate it with enamel. I also feel that the carbon tube accelerats the magnet slightly. Thank you for the post!
you sir, have a brilliant mind.. I hope you're experimenting on your own too. good luck!
Yes I have tried this making wire of a graphite but it doesn't make electricity 😢
Really happy to see you posting stuff again. Are you going to release instructions on the nuclear motor? I'm dying to try it out, my own attempts have been pretty unsuccessful so far
Good to see you back! Have you ever experimented with crystal cells replacing solar panels for any of your Soln projects?... As for the Lens law issues; it might help to realize electrons are not actually particles but rather the point where a line of force crosses another line of force.
Good job! The effect is quite astounding. The implications could be wonderful for lower emf with electric current?
Thanks, I love your videos. Your illustrations are always excellent.
Just throwing a theory out there. Unlike copper, there is no dielectric permattivity occurring in the graphite. Although both copper and graphite are diamagnetic, some polarisation is dielectrically induced in the copper as the magnet falls through a copper tube, allowing their dielectric planes of inertia to combine causing drag. With graphite, magnetism is displaced only and there is no dielectric drag occurring.
good questions! im wondering if it has to do with the creation of eddy fields within the conductive material? i know copper and aluminium are great at allowing external magnetic fields to generate eddy fields and currents within the core.. im not sure about graphite...
It dropped almost as fast as free fall. Try wrapping a coil around the graphite rod and an air coil of the same dimensions, and drop the magnet through tube with coil and free fall through coil measuring the voltage generated in each.
Hypothesis: because graphite is a relatively strong diamagetic material, you'll have fewer lines of magnetic force cutting the coil wrapped around the outside of the graphite tube, and thus will observe less deflection in a meter connected to that coil.
Other observations. Superconductors are examples of perfect diamagnets, and aside from flux pinned magnets, magnets will float across a super conductor unrestricted by eddy current loss in the superconductor.
I strongly suspect a magnetic will drop faster through a copper tube with a graphite inner tube, than the same copper tube without a graphite inner tube.
Remember why we were forced to use graphite instead of copper for spark plug wires back in the 80's? Extremely low EMF with acceptable conductivity at higher voltages. But there you go, spark plug wire core maybe from a manufacturer that is willing to sell it to you. You will have to find a feasible way to insulate the core though, maybe with a Saran Wrap type tape? All my best.
YOU ALIVE!!!!!!!!!!!!!!!!!!!!!!!!!
I believe a graphite wire would be possible to make if you use casein or PVA (alcohol) as the binder that holds them together
I think it will fall faster thru the graphite tube, because it's diamagnetic, so it will reflect the magnet's flux, and much more strongly than the common "levitating" trick shows, because it's contained, and curved. Or maybe not faster, but smoother. Might not even notice the difference.
You should try putting that magnet in a small graphite crucible.
Nice vid. I have an experiment of my own that uses len'z law. I want to see if spining some magnets inside the center of an aluminum heat sink that I drilled a hole in, would be an efficient heater or not. I know the magnetic drag creates heat, but I can't find out if using the eddy currents to create heat would be efficent. The only thing that comes up is how to minimize eddy currents, which is the polar opposite of my goal.
Did you close the TeslaMaker store?
I was pretty sure about noninductivity of graphite. Still the real experiment kept me excited. :-D
you can heat graphite trough induction. thats all i know
What if you make a longer one? How much speed could it reach?
Is it possible for you to try taking apart those magnets and glue them in a way to have the same pole in each side then see what happens while putting them in each tube?
And is it possible for you to get the weight of the magnet outside and then inside the tube (when the motion is done)? thx
I predict, it will fall through fast, though, if it was a tube of Graphene, i wonder if it would slow down. as that is much more electrically conductive?
neat Experiment, and the concept, of electromagnetism, and graphite, would definitely, be a neat video series, potentially.
It must be because the graphite is anisotropic right? I was very surprised by the result! Thanks for the video!
Of course gives a current trough carbon a magnetfield but since the, relative, high resistance of carbon it will be a "lossy" coil that indeed warms up much more than copper.
nice to have you back! now give us the files for the little tritium motor ;)
while i'm at it, i want to build one of your motors, and i'd like to know if i could use 44AWG wire instead of 42, since i can't find it locally.
Thank you so much!
I've been wondering the same thing.
I'm not surprised that material choices matter!.. but I am surprised how dramatic a difference!
.
It is not an electromagnetic effect!
It's a material magnetic effect.
Magnetic material Electra effect?
... There will be different combinations.
Thank you again so much
thanks
I am sure a graphite coil would work as eletromagnet, but it will likely run hotter due to higher resistance.
I kinda expected it to be slowed down some, but not to the same extent as copper,
just due to lower conductivity.
The copper have high currents (unsure about magnitude, but I know it's major), and graphite would have too high resistance to make it major.
Try meassuring with a 4-wire milliohm-meter, your meter was limited by test-leads, and resolution at the lower end of the resistance range.
That's really odd, I didn't expect the result, but the textbook science is at least incomplete, when not wrong in some aspects.waiting for results with graphite conductors.As a succession grapheen threatened materials could be used for coils. Thanks for sharing.
Cheyenne, if that tube was made out of pyrolytic graphite, I believe it would have slowed down. But the regular graphite, no deal. I have a magic trick where a pyrolytic graphite chip floats on 4 neodymium cube magnets.
The main difference between the graphite and the metals is that the metals have more delocalized electrons. The outer shell electrons in metals are not bound to the atoms themselves; rather they flow around the crystal like an electron soup. Metals with more valence electrons tend to be more efficient conductors. Graphite has three covalent bonded electrons holding the crystal together in a very orderly structure. This leaves only one electron to be delocalized. However, the fact that it does have one delocalized electron per atom is the reason this non-metal is a good conductor in the first place.
Small meters like that use a low voltage, low amperage current to test for continuity. Try ramping up the current in those different conductors and things get a bit more obvious. The graphite will begin to incandesce a lot sooner because it does have much greater resistance than the metals when it comes to high amperage.
This is why Edison used graphite filaments in his light bulbs. They were the easiest to get glowing and remained the preferred material through much of the late 1800's and early 1900's. The reason we no longer use graphite for incandescent lights is because they are comparatively dimmer, more brittle, require thicker filaments which make them bulkier and heavier and they are much shorter lived than the tungsten filaments that were invented in 1904 in Hungary.
The reason the graphite doesn't slow down is it is porous. Look up the Edward Leedskalnin Perpetual Motion. It works as long as you don't use laminated metal and plate.
I've enjoyed your videos and info now I'll give you one. Find one of those little Radio Shack round magnets look for 1/2-Inch Round Ceramic Magnets 5-Pack. Now check and you will see there is a N and a S. Use a gas burner and heat it on the flat side either north or south and it kill one side the magnet leaving you with a one polar magnet..
Carbon disc can function as faraday disc generator. Perhaps the magnet effect is less due to the infinity higher surface area and lower density of the graphite tube you made. The slowing of the magnet is less discernible perhaps because of that. Now imagine a series of .7mm pencil graphites that are applied to the outside of a very thin plastic walled tube. Parallel to the long access of the tube. Would a thinner more dense carbon sheath provide the same non discernible effect or would that allow the eddy current to be distributed into a smaller area thus increasing the effect? Just thinking out loud. As Always great job.
How's the boost pack doing? Still using it?
try this, for fun, take a piece of copper wire and make a jumper from the top to the bottom but make the distance from the tube about an inch. Try a thin wire and then a really fine wire. Vary the width from the copper tube. The magnet is compressing and forcing the static field to move through or at the furthest point but the entire field is within the reach of the magnet so the magnet and the field resist each other. The only 2 (choices) the static field has are to leave the copper or to skirt the easiest point. By making a jumper outside the main effect of the magnetic field, a current will flow. Just like an electrical motor winding but inside to outside. Make the jumper shorter than the full length so your magnet doesn't just pop out the bottom? Also fun to use a variable resister to see the speed difference. Edit: Try it with an led or diode and it becomes a one way Lenz's Law Also try just making the outside of the copper non-conductive with electrical tape, would it change anything? I don't have any kind of workbench but I would take a bet. Edit: would an external jumper with a high resister midway that spun into a coil at the bottom around the base of the tube create an electromagnet at the bottom to slow the magnet further. Second Edit: does that graphite interfere with the magnetic field like ferris metal. Last thing, the inner diameter, the thickness and how much of a static field it holds all matter. Thats my answer