Pendulum Wave

So I saw this pendulum wave video on KZbin and thought, "I wonder if I could make that?" It's a scrap wood project and entirely for my own amusement.
I used a 1" dowel, a couple of cedar boards, and some network patch cable. I spent about an hour last night just setting off, over and over and over again. It is quite hypnotic...

[@MrDpoling]

I had no idea what it was going to be until the end. That was cool!

[@geertjebrandenburg195]

this effect is amazing, I would love to see you revisiting this piece since you dismantled it

[@Inyourhollproject]

You need to revisit this one for sure! Be cool to see you woodwork a cooler frame .

[@Sinegav]

What if you revisited this project and attached different led colors to each one? I think it could look really cool in the dark. :)

[@peterbrownwastaken]

+Sinegav That would be really neat!

[@StarNik94]

DO IT!!!!!!!!!!!!!! please? lol

[@peterbrownwastaken]

Thanks!

[@peterbrownwastaken]

thanks!

[@L0STinNARNIA]

I love these science-project meets the woodshop videos :) very neat!

[@js267]

After watching for years, my wife and I went back and watched from the beginning wondering when your videos would transition to the high quality we see today. I think this video was your turning point. Also if you're reading this during the wild fires, could you do a video catching the falling ashes in resin, and then sealing them in with another layer? I think it would be an interesting time capsule of the fires and air quality we are experiencing in California.

[@brockdion2593]

Very satisfying

[@Louisthesketchbomb]

This would be an amazing way to practice animating snakes or Chinese dragons, or if you're into the 3D stuff you could even add tracking points to the different weights and do a digital render

[@mhaz49]

Give that one to your daughter for her high school physics class.

[@PrincessSixThirteen]

I would love to see this remade. Maybe with Bobby Duke Arts? 😇

[@TuckerSP2011]

So cool!

[@peterbrownwastaken]

+TuckerSP2011 thanks!

[@nigiyakapepper977]

PHYSIIIICS! \O/

[@faesommers]

It would be awesome if the one with the shortest amount of string looked like a snake head, and the rest looked like the body!

[@RonRay]

Wouldn't the action be much freer is string (monofilament?) was used, instead of the stiff phone wire?

[@peterbrownwastaken]

+RonRay Yes. This never worked right. I ended up dismantling it...

[@RonRay]

I was thinking of a stationary dowel at top, then a PVC pipe, just a little larger covering that dowel, with bearings (skateboard bearings) at both ends. Attach the pendulum strings to the outside PVC pipe. Place a 'stop' to allow only approx. 45 - 60 degrees of 'turn' to the outer PVC pipe. Make the pendulums heavier at the shorter end and gradually lighter at the longest strings. When the heavier pendulums swing one way, they pull the PVC pipe to that direction (but only a few degrees), then when they begin gathering on the other side, the outer PVC pipe would turn that side, then back, and so on. It just seems to me that this would allow for more stored "potential" energy, giving a longer run time. ... Just a thought.

[@elanjacobs1]

Nice to see a riving knife and guards on the table saw

[@peterbrownwastaken]

Not on this girl. She came off the line in 1950, and the guards were junk! As for a riving, knife, it hadn't even been dreamed up yet. I do need a splitter though.... It's on my list! :)

[@elanjacobs1]

Riving knives were around long before before the 50s, here's a Wadkin catalogue from 1929 www.woodworkforums.com/showthread.php?t=168294&p=1631317#post1631317 You could make your own guard as well if you wanted.

[@peterbrownwastaken]

Cool! Look at that! I doubt they were very common though... Regardless this is the aftermarket one I've got my eye on: www.theborkstore.com/

[@elanjacobs1]

They were big in Europe, just the American market lagged behind

[@eddiemilton3819]

that is really freaking cool.

[@peterbrownwastaken]

+Eddie Milton Sadly, it didn't work so great...

[@bladecioppi]

+Peter Brown yea the balls are spose to be the same weight or it wont work thats hy

[@everythingknife8763]

That is cool. I am totally making one of these for my old physics prof. Maybe paint them with glow-in-the-dark paint for added wow factor. I think I know what tomorrows project is going to be.

[@peterbrownwastaken]

Robert Marks Here's the truth. Mine didn't work that great. I think the wires were a terrible idea! Fishing line would have been much better!

[@everythingknife8763]

That's exactly what I was thinking. 2lb test monofilament or the lightest braided I can find and maybe golf balls for the pendulum. I didn't actually get to it today.

[@JerryGiesler09]

Have you thought of using monofilament fishing line for the cables to hold the weights? I thought about it making the pendulum wave move more smoothly than the rope twines. ;)

[@RealtorMandy]

neat!

[@considerthedeagox587]

This is really cool Peter I like that you do wood works random project it is amazing what you can do oh and questions can you make a wood 2d dragon it would mean a lot to me

[@cbiggie9264]

Do this one again!

[@austincase914]

that's how I feed my eel

[@brittanyadams197]

Shame about your dismantling it, but it was beautiful while it lasted!

[@thebuck8758]

Is it me or is there a sound delay on the lathe

[@amarallis420]

I wanna do this now... Just need to find time.

[@peterbrownwastaken]

Amarallis Mine wasn't the best, ***** has a better series on this idea!

[@katerineveronikagallinero8338]

what is the length of the wire? and how much lenght long is the other wire to another?

[@battelinin]

I have a question, if you don't mind. What is different about the bobs? I'm assuming that the reason the patterns are formed is because of differing periods with the same amplitude. A differing mass wouldn't affect the period, only the momentum. It looked like your strings or wires were slightly different lengths, and a longer string makes for a longer period. Is that the only difference?

[@peterbrownwastaken]

battelinin I'm not sure. I just copied the lengths from someone else who published them. I've heard it's about the intervals and not the lengths, but I'm a practical person and that made little sense to me! :)

[@mush2938]

Could you make a wooden butterfly knife?

[@wupme]

Is that the strands from some data cable?

[@MrPhillyCheesecake]

Science

[@chloefell1684]

If you don't mind me asking, what are the lengths of the string? I need to now due to a class project.

[@peterbrownwastaken]

chloe fell To be honest, I dissembled it a while ago... Check out kzbin.info/www/bejne/nnvRe4msaaaVo6M He's got a lot more detail.

[@zachwells4135]

What is that old fashion sounding music you used at the end? (I'd love to see a reply from you on such an old video :D)

[@peterbrownwastaken]

I don't even remember now... Sorry

[@liammacdonald908]

maybe next time you could just tie all the weights together, would that work?

[@q-tip7780]

negative to negative magnets?

[@crazyivan030983]

no :) just blocks of wood on different lenghts of strings :) this difference of strings length causes this cool effect :) length of strings must go gradually from shortest to longest :) greetings from Poland :)

[@Lynn-rv4ty]

josh mullins nope, just physics. I'm sure that there are videos explaining how this works here on KZbin

[@MrClint39]

Worst music ever! But great project. Liked the video a lot.

[@katerineveronikagallinero8338]

what is the length of the wire? and how much lenght long is the other wire to another?

[@peterbrownwastaken]

+Katerine Veronika Gallinero I took this thing apart the next day. It was crap. Check out Jack Houweling channel he's got a much better build on this....