Toy Physics--- tumbling toy -part 1 /// Homemade Science with Bruce Yeany

[@Fooglmog]

Two variations on this I'd be very curious to see: a) Using a non-newtonian fluid in the final tumbler. b) Placing a steel ball in the final tumbler, and filling it entirely with liquids (ie. no air pocket) of various viscosity.

[@YeanyScience]

not sure how the non-newtonian fluid wold be but I really like the steel ball in the fluid idea

[@braedanricketts5139]

A little late to the video. Another interesting idea would be to fill it with multiple fluids of different densities. e.g. Oil and water.

[@neva210]

Спасибо за замечательные примеры с переменой массы.

[@jigyasafoundation5560]

Nice Work Mr Yeany ! We can see & realize the amount of work and personal interest you put in making the toy,and explaining the concept. Thanks You for inspiring the generation, we look forward to share your video.

[@YeanyScience]

Jigyasa Foundation Thank you, this tumbling toy has been one of the harder pieces to design and build but I am pleased to share the end results. I have some simpler versions that that are just as much fun and very easy to build. I will post these in a second video on tumbling toys very soon.

[@jigyasafoundation5560]

Bruce Yeany We liked it ! and take a start of exchange of ideas between us. We make (traditionally handcrafted) mechanical puzzles in teak wood here in India and do inspirational college workshops. We recently held an exhibition at a cultural fest here in Lucknow, India and got invited to the The Regional Science Center as the appreciation of our work- it feels great and hope you can feel the thought. We are subscribed to your channel & look forward to like your next video Warm Regards

[@DanBurgaud]

I had tumbling toys in my childhood days... this brings back some of those memories...

[@thokk10289]

fill one with pitch it would take an eon to go down one peg

[@tylerpauli680]

I’ve been binge watching your channel last few days. Great work

[@farseerflore9512]

Science and great DnB riffs! Awesome!

[@donmorton9449]

Hi Sir really I like your nice models God bless you abundantly

[@1camerooon1]

Could you do one with fine grained sand? Would be interesting to see if that is faster or slower than a liquid.

[@S4ccryn]

Cameron Gregg an egg timer inside the tumbler is like a clock measuring measures

[@LakeNipissing]

3:27 . . . Try with Mercury, SG =13,6. That should move pretty fast!

[@NoStereo]

Ha, that's the song Cox and crendor use.

[@WILD4X4D]

In accordance with using a more viscous fluid, could the tumbler toy be calibrated to make an accurate clock, i.e it takes an hour to make one rotation?

[@YeanyScience]

it probably could if I had the track cut more accurately, such as a CNC machine. The imperfections in the current slots catch the axles and vary the time from one turn to the next

[@WILD4X4D]

Bruce Yeany so if I use thick sheet aluminum, cut with a CNC machine would that be a good basis, or should I computer accurately mill and machine all of the parts?

[@YeanyScience]

Sorry Aden, I have no experience whatsoever with these machines. I pretty much work with wood for everything I make. you'll have to ask someone who knows more about it.

[@WILD4X4D]

Bruce Yeany well you know the science, and I work with these machines daily. If you don't mind I'll borrow your science and meld them with my skills. And I'll let you know. If you don't mind.

[@bronylike2905]

Bruce Yeany if you use pitch, it would take until the end of time

[@WoodFrontier]

Fantastic work. I've been going through your videos over the past couple weeks and loving them.

[@YeanyScience]

thank you

[@profetachinogaleaoficial640]

Thank you very much congratulations ! Excellent vídeos and project very good

[@madDragon08]

Is there a limit to the length of this tumbling stepper? Not the length of the staircase, but the length of the tube that the weight travels back and forth through. I would imagine at some point it would not achieve enough swing to restart the next step.

[@nicholasalbeck7114]

Bruce Yeany. Yeany meany miney mo. Mo' betta Bruce!

[@RougeShadow199]

If the slope or ladder continued for eternity down, would the toy ever stop?

[@YeanyScience]

as long as it's going down it would keep going

[@sheadjohn]

it would be neat to put a motorized weight to make the tumbler go up the track

[@Metal-Possum]

I used to make these out of paper and a marble as a child. I knew them as "magic jumping beans" as they rolled awkwardly down a slope, no funny rods or special track required.

[@magnussorensen2565]

Interesting video. What about adding some kind of legs to each pair of peags so it can walk down a stair.

[@Praxis4RageBaiting]

can you please make a clock out of that toy?

[@wolfgang4468]

Fantastic and inspiring, thank you!

[@supergub]

It would be interesting to compare using sealed tubes partially filled with liquid, and one has atmospheric pressure wile the other is under vacuum.

[@lilome31]

Been messing around with this contraption for a couple of days now. I am close but not quite. Might you have plans with dimensions?

[@YeanyScience]

+Tim Halbert Hi Tim, I have some pictures from construction, give me an email and I'll send what I have.

[@oscarsmith3942]

What would happen if you put a supercritical fluid in this?

[@randomguy3281]

He needs to collab with Cody's Lab

[@carmelpule6954]

Excellent fundamentals to teach with, how to change potential energy into an oscillatory motion.

[@YeanyScience]

Carmel Pule' Thank you, I'm always hopeful that people see these ideas as more than just amusement.

[@rowestation]

It would be great to see if a viscous fluid like honey would work. Filming it in a time lapse, set outside with clouds going by, or crowds of people would be fun to watch. It would also smooth out the movements of the tumbling.

[@profetachinogaleaoficial640]

Thank you very much congratulations! Excellent vídeos, amazing proyect

[@jessewilliams5160]

Wouldn't it make it go faster if the pegs on the tumbler weren't staggered?

[@YeanyScience]

Hi Jesse, I have a few additional designs to try on this, the problem is I have more things to try than time to work on them, but I will see if there is a way to change the pegs around, thanks -Bruce

[@johnmerkley1167]

Can you give me the specific measurements? I'd like to try it.

[@YeanyScience]

hi John I have some basic information that will get you going, send me an email address to send it to

[@TomBalazs]

Bruce Yeany Please send Tumble Toy details or plans to [e-mail]. I love your channel. Did you write that you have 38 years teaching experience? Wow! Keep up the great work.

[@flamencoprof]

It wouldn't hurt to state what principle/s of physics this demonstrates.

[@OkayNiceOne]

Now make an escalator type machine to constantly provide more area for it to fall and now you have a infinite tumbly toy!

[@YeanyScience]

thank would be really cool

[@mikedorton4730]

Bruce Yeany Here is my email address [e-mail]

[@jacobduncan87]

very cool video. I like doing cool science experiments with my son and your channel has given us a lot of fun and new things to learn. I was thinking about the liquid tumbling toy and thought coconut oil would be an interesting one to put in their. liquid above 76 degrees solid below 76.

[@nuvey7939]

Bruce, it seems to me that I've seen one of these where it climbs the incline. I can speculate on the physics but I'm not certain they weren't just playing a video backwards. Any idea on how that would work?

[@YeanyScience]

I've had a few people ask that and I don't know how it would be possible, gravity is pulling it down.

[@nuvey7939]

Me as well. I was thinking an extra long tumbler with two or three smaller balls or something, but in the end, it could just have been a video played backwards.

[@rishabhmayank]

Nuvey It is a common science toy, we had one in our school too. the thing that climbs is like two cones stuck end to end like this and it is allowed to roll on tracks that converge instead of being parallel

[@nuvey7939]

The one I saw looked like a modified version of this one. I know exactly how the other works. I had those in school. But this one flipped like the one in the video. The more and more I look, I get the feeling that someone uploaded a video of one of these playing backwards.

[@coltonthedrummer]

Just found your channel. Loved the video and you now have a new subscriber!

[@YeanyScience]

thank you, glad you liked it

[@PO13GR3G]

Try the honey please.

[@568min]

Thank you so much for your time sharing this helpful video

[@alfredabbey6162]

You have some very lucky students:-)

[@samy4759]

May i use this for my physics project?

[@YeanyScience]

samuel yow Yes, it is my hope that people try some of the ideas in these videos. If you reply with your email address, I can send you more information on this piece.

[@samy4759]

[e-mail] thanks! i need an explanation of how the toy works. Using the concept of energy, moments and force

[@ariesniones9372]

+Bruce Yeany (Yeany Science) can you send me the plans and measurements of your toy physics. at [e-mail]

[@gerardb.ducoudray8881]

Do you share the planes?

[@YeanyScience]

I don't have step by step plans but I have some pictures and information that can help, send me an email address and I will forward it

[@martywildes472]

Me too please! [e-mail]

[@kevinbyrne4538]

You might consider a study of the toy "Fiddlesticks", which is just a rod with 2 spinning rings on it. Jearl Walker mentions it in his book "The Flying Circus of Physics".

[@bradforsythe6256]

What if you made a circular or semi-circular tumbler

[@70rodal]

My 5yr old son and I would like to ask you for a copy of how you made it and the materials. WE ENJOYED VERY MUCH WATCHING THE VIDEO.

[@YeanyScience]

THese are prototypes. There is a toy on the market of this piece but I couldn't find where to buy one so I estimated the sizes and then scaled it up. I made several changes as I was building it. I don't have exact scaled plans for it but I do have some pictures that may help, send me an email address and I will forward what I have

[@70rodal]

Bruce Yeany. Thank you very much for replying. my email is [e-mail]

[@Andrew-13579]

1..Can you make one that descends at a steady rate in a smooth, continuous motion? 2..Is it possible to make one that climbs up the track? Would have to have some form of input of energy to gain potential energy, I'd suppose. So my intuition would say no...but am I possibly wrong? :)

[@Stormprobe]

Did you use mouthwash in the last one? You should add a defoaming agent with it.

[@YeanyScience]

it was dish soap and water

[@AndrewBoheler]

I can see plans here for the worlds most boring toy: a tumbler filled with pitch. Or, more optimistically, the worlds most interesting pitch-drop experiment. I wonder what the most efficient possible tumbler would look like? Smooth rotation down the slope, transferring the weight without jolting... I guess the closer to the ...center... the center of mass gets, the more like a simple wheel and axle it becomes. It would be interesting to see multi axis tumblers too.

[@YeanyScience]

You raise some interesting questions here, however, I don't think I will try the pitch tumbler, I'd only get to see it turn over once or twice in my lifetime

[@iceton8186]

nice way to mimic footsteps.

[@Rhin0Neil]

Do one with liquid but reduce the hole size to make a timer. Try to get it to do one hour total time from top to bottom.

[@YeanyScience]

that is a good idea

[@artconnolly9519]

how about a perpetual motion machine. use the same toy but build a wheel instead of a ramp and have a slight brake on the wheel so it won't spin too free. I wonder if that would work ??? Maybe I'll have to try it.

[@emeryshurpit8656]

Art Connolly No form of that would work, conservation of energy always comes out on top

[@klobiforpresident2254]

I'd personally use a superfluid liquid in a vacuum tube, but I think that's out of the budget?

[@YeanyScience]

me too!

[@maxsnts]

20 years later i realize that my physics teachers were crap. :(

[@CabooseLoL]

That would be one hell of a carnival ride hahaha

[@PaulKlinebanana]

THAT'S A GREAT IDEA PLEASE DO ONE WITH HONEY

[@fluevedpeisen9971]

YES, DO THE HONEY.

[@alfredabbey6162]

Then eat the honey.

[@arnulfoacevedosoto7956]

Amigo que precio tienen los planos en PDF

[@TheWhiteKnightProd]

You should make one of these with mercury in it. That'd be dope.

[@BillySugger1965]

Aw Bruce, do you know the pitch drop experiment? Imagine making one of these filled with pitch, setting it off for your great grandkids to still see on its first trip down the track!

[@VanceWalkerNinjaWarrior]

Your gaining subs fast

[@YourNickIsTaken]

I do like this video. Mechanical physics is always a fun thing to watch. Education and entertainment at the same place and time. I lu

[@petrarclanchann7973]

Bruce... try to make a honey day clock.

[@jeffsomebody6463]

hi what are the measuremeants

[@thucydides01984]

Cute stuff. If you did fill it with honey, and it took all day, you could use it as a clock.

[@Karpens16]

How about that drop experiment with pitch that takes years to drip. I'd like to see a tumbler with that stuff in it.

[@BuckeyeStormsProductions]

So, now I want to build one with a very viscous liquid (not sure about honey, though), and use it as a form of timekeeper. If you could find something which would take approximately an hour to tumble once, it could make an interesting clock.

[@alfredoespinozapelayo]

excelente video, está genial, gracias

[@jamescahn87]

hey Bruce, has anyone ever tried to make one of these that would alloy the piece to actually CLIMB the track instead of tumble down it? That would make for a very interesting physics explanation also!!

[@dregerdreger8013]

y que probamos con eso ???

[@woodslore8537]

you should try an hour glass shaped tumbler filled with sand just to see its rate of speed.

[@jackreoh]

maybe you should make a ever shaking hanging box

[@rafaelvenzal8772]

It's Great! congratulation.

[@nordenconrad14yearsago45]

what if you make a zig zag tumbler?

[@martinwalters1954]

Now let's see one that climbs.

[@concretenate8068]

Very cool sir

[@MrRyanroberson1]

With regards to honey: Time lapse idea?perhaps add a clock in the background for reference!also: Is it possible to make a light enough tumbler to use co2 vs. A lighter gas to tumble? (like the floating tin foil in a co2 filled fish tank experiment?)

[@Y1EL]

nice work

[@mitchelldoolan961]

you should try using mercury and lead balls

[@MrCoolstopmotion]

Try mercury as a liquid inside the tumbling toy that would be very intresting

[@rickkwitkoski1976]

Mercury is VERY TOXIC! The tumbler part, the way it is made in the video, would probably leak a bit of it. NOT GOOD!. And a sealed glass vial of it inside the tumbler still wouldn't be safe as it could break as well. The small ball bearings in the one tumbler is a good approximation of what mercury would look and act like.

[@K0szk0]

Many ppl do mercury videos on yt these days. If you're so paranoid about it then I wonder how you're going to react on that: /watch?v=GvVaaZ21C44

[@microdesigns2000]

Oh, please please. Make one with honey! I'd liken to see one designed so well that it doesn't ever bounce, but moves fluidly. I wonder I could model this activity in Fusion 360. And... I wonder if one could be built with balloons where an air-filled balloon would have a helium filled balloon inside, causing the mechanism to climb up a ladder.

[@TheDarkSaplings]

0:24 You should have a mic of some kind, it does not seem like you have to shout. =D

[@YeanyScience]

I've struggled with the technology of putting a video using cheap equipment, hopefully the video quality has improved since this was made

[@amigi5001]

Nice Channel. New abo secured 👍🏻

[@seandenby2304]

can you imagine how long a liquid tumbling toy would take if you used pitch?

[@JasonCoulls]

Here's an idea... Put a non-Newtonian substance in there... like silly putty. It'd probably take all week to go down, but it'd still work.

[@KlaxontheImpailr]

If you think about it the liquid one is like the bb one.

[@bubblezovlove7213]

But now I want to see the honey one! Make the honey one! The longer the delay is, the more interesting...

[@AlejandroInvestiga-wj1lg]

Amazing toy to awake the interest for the physics¡

[@YeanyScience]

franco brizuela Hi Franco, this piece took several tries to get it working right. I especially like watching the part of the video in slow motion. It's movement is too fast to see the behavior of the tumbling toy but slowed down you can get a better understanding of it's physics. Thanks for your comments. Bruce

[@AlejandroInvestiga-wj1lg]

Hi Bruce, yes even making good physics calculations it take many tries.

[@oxo010]

I suspect that it wouldn't work with honey. I think the impact as the device hits the stand, and the resulting flinging of the ball bearing, or liquid, before the device stabilizes, is necessary to keeping it moving. With honey, or even with a ball bearing and different device dimensions, the device would stabilize, hanging from the top pins and with the bottom pins lifted from the stand. The device would stop moving, and the weight -- the honey or ball bearing -- would remain at the end of the device closest to the uphill end of the frame. It shouldn't be hard to test this theory.

[@louiswouters71]

Make a video of this with a water bottle that ends up perfectly straight on the table at the last spin. Call it water bottle flip science edition!

[@YeanyScience]

very funny, thanks

[@saturatedodin476]

Fill it with mercury

[@ThatGuy-vy3cp]

+RandomRoulette why stop there? fill it with a turtle

[@alfredabbey6162]

Even better fill it with high explosive so you get a big surprise at the end.

[@vortexwhirlz2181]

Omg amazing I wanna be like u one day

[@ColynBowman]

A toy called "Mighty Beanz" work using this same idea

[@asmoth360]

You could actually put some sauce in the last one and let it mix itself.

[@chrisvanderpoel1344]

Tutorial????

[@YeanyScience]

yes but I've got some other ones ahead of it

[@chrisvanderpoel1344]

Bruce Yeany What do you mean I want to make one for my self😀😀😀

[@YeanyScience]

Hi Chris, this was a prototype and I had a lot of difficulty getting it right, many mistakes. I plan on making it again and drawing out plans as I do it. However, I do have some of the basics that I've sent out that can get people a pretty good idea of how to make it, I can forward them to you if you send an email address to send to

[@chrisvanderpoel1344]

Bruce Yeany [e-mail] please delete this coment after Reading iT

[@devlinfisher9028]

Someone should make a treadmill for this so it can fall forever.

[@stringmanipulator]

loved it

[@JaredSloger]

I had a toy just like this as a child. The body was more of a pill shape with a drawing of a silly face on the front.

[@BrookNBones]

I'd love to see one made with mercury, I'm thinking it would move like the small balls do.

[@Sausketo]

intro: "Hi, sean here from speedcubereview"

[@jimaras26]

You could fill the tube with mercury that would be awesome if you need mercury ask codys lab chanel

[@RunielNalovir597]

Why do i get the feeling someone could try and make a "perpetual motion machine" out of this?

[@spike4850]

TeamMagePowerSS because lots of 'perpetual motion' machines use moving bearings and wooden frames?

[@NotaSuspiciousName]

the liquid one imagine how long it would take full of pitch XD

[@lukemartin7029]

Neat video

[@HokoraYinphine]

the beginning song sounds like the Let's Tap game i think it is :P