Chaotic pendulum's entertaining behavior, // Homemade Science with Bruce Yeany

Chaotic pendulums have always been a fun classroom or home science demonstration. Here is an easy to build set of arms that can t be changed around to a few different chaotic pendulum variations. While these devices are usually made out of aluminum or plastics, this design is made out of standard stock 1/4 inch thick oak wood, a few commonly available skateboard bearings and a few nuts, bolts and washers.

Пікірлер: 76

  • @jynx2501
    @jynx25012 жыл бұрын

    Put some LED lights on them and take some cool time lapse videos.

  • @JohnWesleyDavison

    @JohnWesleyDavison

    2 жыл бұрын

    Not exactly what you wanted, but pretty close kzread.info/dash/bejne/n45lyqiYXcbbkqQ.html

  • @1a1u0g9t4s2u
    @1a1u0g9t4s2u2 жыл бұрын

    Another great project to do with the grandkids. So many variations to try, the only limit is your imagination. As others have commented in previous videos, wish I had a science teacher like you when I was in grade school.

  • @patricj951
    @patricj9512 жыл бұрын

    This is so cool! It seems very strange that while one could expect it should soon slow down it continues with such surprising unpredictable movements like it was an outer energy source assisting it.

  • @xXDon00Xx

    @xXDon00Xx

    2 жыл бұрын

    Like the earths momentum maybe

  • @ahmad-murery
    @ahmad-murery2 жыл бұрын

    It reminds me of myself trying to do something while I don't know where to start 🥴 your videos always comes with some kind of fun in them (except for that flaming flying hot-dog it was so scary 🌭😨😁) Thanks Bruce,

  • @hunterboat
    @hunterboat2 жыл бұрын

    First class as always Bruce! Thank you!

  • @AnalogueInTheUK
    @AnalogueInTheUK2 жыл бұрын

    My best mate dances EXACTLY like this when he's high. Great video, pal.

  • @susiehenders
    @susiehenders2 жыл бұрын

    Another great video 🙌 The laser one looked so cool!

  • @naderibraheem2851
    @naderibraheem28512 жыл бұрын

    Good

  • @lawtonallegood8948
    @lawtonallegood89482 жыл бұрын

    I love this video. Your instructions, as well as your presentation of the steps, were great. Please keep doing what you do. I do believe that you could teach someone every step that it would require for brain surgery. You would also make it in a reasonably length video. Seriously, thank you.

  • @jolllyroger1
    @jolllyroger12 жыл бұрын

    Always enjoy you're videos

  • @marcel_max
    @marcel_max2 жыл бұрын

    Great choice of music in the background!

  • @adams6782
    @adams67822 жыл бұрын

    I love these vids!

  • @SBJCREATORS
    @SBJCREATORS2 жыл бұрын

    amazing video

  • @rebeccacardy6070
    @rebeccacardy60702 жыл бұрын

    I CANT WAIT TO MAKE THIS WITH MY SON!!! He is 6 and LOVES all things science and space. I think we might add the led lights just for fun though 🙂 Thanks for the tutorial 😊

  • @tuen8070
    @tuen80702 жыл бұрын

    Nice illustration for chaos.

  • @fshs1949
    @fshs19492 жыл бұрын

    Best idea. Thks.

  • @marcellofernandez5788
    @marcellofernandez57882 жыл бұрын

    Gracias por el tutorial

  • @kennethbottse8342
    @kennethbottse83422 жыл бұрын

    So cool thanks

  • @donwright3427
    @donwright34272 жыл бұрын

    That's awesome

  • @pianohut6258
    @pianohut6258 Жыл бұрын

    Thank you your double pendulums are brilliant. Do you think that it’s possible to scale them up quite large and if so would they be slower and would you scale them in proportion Thank you Liam

  • @WafflePilot
    @WafflePilot2 жыл бұрын

    So cool, easy to understand, and fun to watch! Keep ut the good worke, Bruce!

  • @akshinbarathi8914
    @akshinbarathi89142 жыл бұрын

    HEY BRUCE I HAVE ONE DOUBT! in many places i have seen one vector rotating on another rotating vector and they used it to create many images and drawings (THE FOURIER SERIES) is it related to this pendulum anyway? inspite of being a medical student, iam curious about some of this physics stuff you are a legend, infatc a modern day julius samner miller

  • @kleinjahr
    @kleinjahr2 жыл бұрын

    Tape a laser pointer to one of the arms and watch the cat go crazy.

  • @sillysad3198
    @sillysad31982 жыл бұрын

    at certain moments it appears that the energy of the pendulum is totally hidden

  • @Traderjoe
    @Traderjoe2 жыл бұрын

    I’ve been working on a type of scare crow, but for predator animals like fox. I built a person sized and proportioned mannequin but I want to add some flailing aspects to produce the illusion of random movements to give the animal the impression that they are seeing something alive to be frightened of. This gives me a few ideas.

  • @dondon5007
    @dondon50079 ай бұрын

    Bonito experimento.

  • @Maninawig
    @Maninawig2 жыл бұрын

    I wonder at how many pivots Would the pendulum become fluid? I mean chain whips would be an example, but can be used quite accurately.

  • @sootikins
    @sootikins2 жыл бұрын

    For some reason this made me think of how the riders' "cages" flip seemingly at random on the fairground ride called Zipper.

  • @dallasswoveland4466
    @dallasswoveland44662 жыл бұрын

    Reminds me of whacky inflatable arm flailing tube man.

  • @NormReitzel
    @NormReitzel3 күн бұрын

    FWIW, the bearing axle is 8mm, not 5/16". The bearings are all metruic, all the time.

  • @edifierbass7821
    @edifierbass78212 жыл бұрын

    How long will the movement last? can you make it to last in like 2days?

  • @GageFree454
    @GageFree4542 жыл бұрын

    The original video was made 4 years before I was born

  • @thoughtx4728
    @thoughtx47282 жыл бұрын

    I wish we could get together and figure out how to implement my ideas since our intent is very much the same. I could sure use some advice

  • @MasterFeiFongWong
    @MasterFeiFongWong2 жыл бұрын

    To whom it may concern. Over Unity Electric Generator Design: By ☯AMA☯ Segment 1: 1 motor with hollowed bar connected to it standing vertically. Circular disc connected to bar that has magnets embedded in it's top side all around, surrounded in high permeability material to focus magnets outward pushing force in an upwards direction from top of disc. Segment 2: Hollowed out cylindrical Bar of material horizontally positioned. donut shaped platter that's flattened on all sides instead of rounded, all around the flat edge of this platter, from the center is a ravine in the center so structure looks more like 2 donut shaped platters flattened on all sides & sandwiched together against a smaller donut shaped platter that's flattened not rounded & between them both. Square openings are located all around the outside of platters edge on both sides & goes all the way through material. In these openings rectangular magnets surrounded in high permeability casings are slid into place all around platter in a matching pattern on both sides. N facing in then S facing in. Connect these securely all along the length of the horizontally positioned bar except at far ends and center. At both ends of horizontally positioned bar securely connect a ring of material that can be magnetically repelled (This will allow bar to spin when apart of completed construct) Build a hollow ring structure that has ring of magnetic repulsion around its inner ring that will be able to fit around main horizontally positioned bar and keep it from touching anything on account of the bar sitting on its magnetic field inside the ring. The ring structure has a rectangular bar protruding from it's outer edge & has small square platform on end of it that will allow it to be screwed in to another structure. Make 3 of these ring structures & position them (approx) over both ends of horizontally positioned bar & around it's center. Build hollowed out rectangular encasement that is separated into 2 pieces that can be placed on top of each other and screwed together. This encasement will fit over horizontal bar & everything that is immediately around this bar. Encasement needs areas all along it's top side that has screw openings that all structures inside that need to be fastened down will be able to screw into. (Best if encasement is transparent) Encasement has round opening at both ends so when in place horizontally positioned bar with round magnetically repel-able disc attached to it are sticking out. Build hollowed out ring structure (flattened not rounded) that has a hollowed out rectangular bar that protrudes from top and bottom of ring and has square platform at end of each that will be able to screw into inside of encasement on top and bottom. Ring structure should be able to separate into 4 halves (from middle separating top & bottom & from side to side on each) that sit on top of each other & side by side perfectly connected when encasement is closed. Hollowed out aspect of ring structure & it's protruding hollowed out bar that's connected to it is for conductive wiring to be placed so that the copper coil constructs not mentioned yet will be able to plug into this ring structure and the current can be diverted up through the hollowed out area to a point where another device can plug into it. On bottom of hollowed out ring structure there are openings where copper coil constructs can be plugged into. Build wide but small ring with ravine around its outer edge in center (kinda would look like the round metal piece you would see in a pulley system but not angled in) of structure (flat not rounded & not hollow in center). Copper coil will be coiled around this. Build hollowed out rectangular structure the length of the width of the wide small ring structure. Build a plug system within it so at the center of the rectangular structure it has proper electrical plug poking out that will be able to plug into bottom side of larger ring structure that is designed to divert current. At both ends of small rectangular plug system there should be flat rectangular legs hanging down so that you can fit it perfectly over center of small wide ring structure that has copper coil wound around it & screw openings at bottom of these flat rectangular legs so they can be screwed together. Ends of the copper coil are fed up into the plug securely. With wiring in place screw top halves of ring structure together still separate from bottom halves. Then with wiring in place screw bottom halves of ring structure together. Now screw the already connected top halves to the inner top encasement structure & same for bottom halves. Two main encasement structures still disconnected at this point. (Fine point... there are as many of these ring structures with copper coil constructs plugged into them as there are the magnetic disc constructs lined up across the length of the horizontal bar) This is because they are all to be lined up. Now with everything ready carefully lift up the Horizontal bar with the magnetic disc setup securely attached to it. At this point the magnetically repelling rings that are at far ends and center of bar should be hanging freely. Carefully position this whole thing in the bottom encasement so the copper coils are positioned perfectly in the ravine of the magnetic disc area connected to bar. Line the free hanging magnetic rings that have rectangle bars and square platforms up with the inner bottom of encasement and screw them in. At this point the horizontal bar is sitting on the magnetic fields in the rings and is securely in place connected to bottom encasement. Now pick up the top of encasement and carefully line it up the same but on top & then screw the top encasement to the bottom encasement. If lined up properly you will see that when the horizontally positioned bar is made to spin, the magnetic fields will interact with the coils that are perpendicular to the magnetic field lines and since the copper coils are positioned to hang withing the ravine, the magnets on both sides will magnify the effect to achieve greater results & since the magnets on both sides are set up N then S all the way around it will end up being AC current. At this point you may be wondering how will this ever equate to over unity? well we are about to get to the part that makes that possible. Build cylindrical structure (like a donut but flat not rounded on all sides but still hollow in center like a donut). The cylindrical structure is built in 2 parts. Top part & bottom part. Bottom half has a ridge close to bottom center area that circles around further into the center but not all the way in. On top of this ridge is a flat ring of high permeability (magnetic field shielding) material that has small openings that will allow magnetic fields through specific locations. The top flat side of the 1st part has rectangular grooves cut into it that go almost the entire distance from outside of cylindrical structure to hollowed out center. At both the outer edge and inner edge it instead cuts down sharply & narrowly at just over the width of the horizontal bar. This way when the horizontal bar in it's encasement is sitting in this spot the case fits down in and bar slides down in with a little extra space but the encasement can't shift forwards & backwards. The top half of cylindrical structure has same groove but no extended ridge going further towards center. Fill the rest of the rectangular grooves with duplicates of the electric generator construct. Now carefully position top of cylindrical structure in place and screw it to bottom section. Now position the motor segment with the vertical bar that has discs on it in center of cylindrical construct so the disc is lined up perfectly underneath the inner ridge that has the flat ring of high permeability material fastened to it. Now you can duplicate this whole setup and stack it for more electrical output. (The only thing that would need to be duplicated with the motor & vertical bar setup is for you to add another disc with magnets embedded in it, higher up on the vertical bar you are already using). When you turn motor on the discs will spin and the magnetic fields on them will only interact with the discs on the horizontally positioned bars when the magnetic field lines go through the small openings in the high permeability material. Since those openings are lined up with the edge of the discs connected to the horizontally positioned bars, it will force them to spin, effectively generating lots of electrical current. Just make sure to let enough of that current pump energy into the 1 motor you are using to run things, and the rest of the electric current is over unity. If you are still wondering how this could end up being over unity, the answer is simple. The device exploits magnetic field effects connected to the vertically positioned bar connected to the motor to have them do all the extra work so the motor does not have to. And since the magnets are exerting there force upwards while the bar spins around sideways, the motor won't be getting a detrimental amount of push back. This design invented by ☯AMA☯

  • @fegolem
    @fegolem2 жыл бұрын

    4:55 That's some crazy restless leg syndrome.

  • @mohnjarx7801
    @mohnjarx78012 жыл бұрын

    I say this on all the rotts pendulum videos, but it's true! It looks like a stick figure guy falling down the up escalator

  • @yassermasood3423
    @yassermasood34232 жыл бұрын

    Happy teacher's day Sir

  • @aeromodeller1
    @aeromodeller12 жыл бұрын

    Now I understand why I could never play the piano. I was on chaos time.

  • @chuckjohnson4048

    @chuckjohnson4048

    2 жыл бұрын

    Me 2

  • @ronfriedrich2802
    @ronfriedrich28022 жыл бұрын

    I was not able to find a 13/16” drill bit. 7/8” works by lining the inside of the hole with a little hot glue or silicone sealer.

  • @MrFmiller
    @MrFmiller2 жыл бұрын

    It would be interesting to set more than one up on a spring or roller table to see similar to how metronomes are done to produce auto synchronous movement and see if they synchronize.I suspect they would not.

  • @carlosalbertoserra4159
    @carlosalbertoserra41592 жыл бұрын

    Se te extrañaba

  • @antoniofrainetti7846
    @antoniofrainetti78462 жыл бұрын

    Tutto ciò che fai è molto interessante, Bravissimo

  • @sanpol4399
    @sanpol43992 жыл бұрын

    The teacher I wanted to have.

  • @HNRY11
    @HNRY112 жыл бұрын

    Who the heck disliked this amazingness

  • @hermitoldguy6312

    @hermitoldguy6312

    2 жыл бұрын

    And why does it only have 10% thumbs up? "KZread" is perhaps the answer to both questions.

  • @wendyg8536
    @wendyg85362 жыл бұрын

    Haha..just like the way I dance !

  • @ace987100
    @ace9871002 жыл бұрын

    What about the butterfly effect through these pendulums?

  • @believeable9017
    @believeable90172 жыл бұрын

    Put LEDs on the end make motion blur video so we can see the pattern

  • @henrystewart4630
    @henrystewart4630 Жыл бұрын

    Chaotic pendulum = my dad

  • @mthlay15
    @mthlay152 жыл бұрын

    This is entertainment

  • @GurdeepSingh-rh8gr
    @GurdeepSingh-rh8gr2 жыл бұрын

    Shape it like a fan then its even better

  • @darrelllee6792
    @darrelllee67922 жыл бұрын

    Well it is completely obvious that the energy transposed from one source of movement to another object that is seeking rest is directly oposed to it energy dissipating, compounding the energy given off, to seek rest. Either I just got tired of thinking abought it or , I really don't have any idea of how a thought can become more than an idea.

  • @vlogcity1111

    @vlogcity1111

    2 жыл бұрын

    Yes but if that is true then we can create electrical energy from the transfer of work from one vector to the other and repeat the process

  • @vlogcity1111

    @vlogcity1111

    2 жыл бұрын

    Without nearly as many losses as we have accepted today

  • @matthewkelly7327
    @matthewkelly73272 жыл бұрын

    If it were possible to put a Benham's Disk (or some approximation) on your device, that would be a REAL toy!

  • @sucrose
    @sucrose2 жыл бұрын

    quarter inch OWK!

  • @fajarsadiq3740
    @fajarsadiq37406 ай бұрын

    😎😍👍👍

  • @paradhoax
    @paradhoax2 жыл бұрын

    Looks like Charlie Chaplin going to kick or punch someone

  • @Produkt_R
    @Produkt_R2 жыл бұрын

    5:05 QWOP game

  • @t.iapsingh5651
    @t.iapsingh56512 жыл бұрын

    Spine boi go weeeeeeeeeeeeeeeeeeeeeeeeeeeeee

  • @ditzfough
    @ditzfough2 жыл бұрын

    4:50 me trying to run a marathon

  • @LiLi-or2gm
    @LiLi-or2gm2 жыл бұрын

    I should have watched this before I ate these "special" mushrooms. (legal here). Edit: It's a Friday night and yeah, psilocybin shrooms grow naturally where I live and in small doses, ease anxiety and in larger doses makes things simply amazing!)

  • @paulklee5790
    @paulklee57902 жыл бұрын

    I know some people who behave exactly like this machine...

  • @Top_YouTube_Music
    @Top_YouTube_Music2 жыл бұрын

    Тектоник

  • @artcamp7
    @artcamp72 жыл бұрын

    this is screaming out for a colored led on the end in the dark with a long shutter photo

  • @weevilinabox

    @weevilinabox

    2 жыл бұрын

    Or... kzread.info/dash/bejne/n45lyqiYXcbbkqQ.html If you find out as relaxing/hypnotic as I do, there's a link in the description to a one hour video of nothing but that pendulum.

  • @Gribbo9999
    @Gribbo99992 жыл бұрын

    Man the non-metric units are awkward things.

  • @ratuadilFF
    @ratuadilFF2 жыл бұрын

    Ini ya yg bunuh sepupu kembarku ayu? Pendulum?

  • @user-ze7qi2wc5v
    @user-ze7qi2wc5v2 жыл бұрын

    very good please your email