I used these for a kid's demonstration a couple years ago and it went over awesome. All the kids wanted to bring people they knew back to the classroom to see what their particular pendulum could do. I used a board with a bunch of nails attached to it to hang the pendulums from, so kids could attach their two string pendulum to nails further or closer apart for different patterns. I started with a tarp for the sand to fall on but it was too slippery and the sand didn't stay in neat lines as it fell. What worked great was taking the door mats from the building and flipping them upside down so the rubber bottom was what the sand landed on. The lines held great and they were easy to clean.
I love your RUclips videos That's really cool with the multiple sand colors from multiple funnels You should grab fishing swivels and make it so you can spin the Sand funnels
The last time I posted two videos together, someone posted that the youtube algorithm won't list the second video to subscribers when they are posted at the same time, so I am waiting a few days.
Great project! Unfortunately our sand here in Hong Kong is too damp. We used sand from a sand bag from the hardware store, and sifted it to use just the fine sand which doesn't feel wet, but it kept clumping together and clogging the hole in the bottles. The Hong Kong humidity now averages 87%. Then the food coloring made it more wet and clumpy. My initial demonstration with non-colored sand worked better, so maybe the food coloring (though only a few drops, as advised) must have made it too wet to flow out nicely. Students still had fun with the pendulum bottles.
Humidity could be a problem only if it is damp, in your case I would suggest spreading the sand out on a big tray and letting it sit in a warm dry place, once it's dry the humanity shouldn't bother it.
HI, thank you for the videos that you share. I get so many ideas from you and one them is the sand pendulum. I'm trying this for our STEAM day, but I have not been successful. The sand gets stuck in the hole so I'm wondering if I'm using the correct sand. I bought the Quikcrete brand from Home Depot. The sand seems coarser compared to what you're using. Is there a particular brand that you use? Thank you for your response.
I've had that happen, two suggestions, use a piece of screen to shift out the larger chunks, I used one for the kitchen such as a flour sifter. Make the hole that releases the sand a bit larger. Good luck with your STEAM day.
Is there some math as to how long the string needs to be. I've seen small ones where the weight draws in the sand. But I've seem ones that seem to not draw any decent pattern
Just curious, could this be used as a math exercise in ratio? Looking at the ratio of length with the two sections of supporting string? Students could construct it in a particular ratio, and then see what pattern the ratio produces. Any suggestions????
Nice but mine didn't work. Even if I open the cap of my bottle, no sand comes out I guess there is some problem with my bottle or the sand(which is a rongoli(colour used in the festival known as holi) colour ). But this is a very nice video and you are a smart guy
the sand can't have large pieces in it that clog the hole, the sand must be dry to pour, make the hole in the cap slightly larger. This will also work with salt
I am a HS Technology Teacher (woodshop). I teach a project based class called MST (math, science and technology) to 10th, 11th and 12th graders. I have been following you for a while now. I know you are retired now from your MS Science teaching position, but I would love to have you as a guest in my class this school year at my HS. I cannot offer to have you there next year because my position is not permanent and I am not sure where I will be next year. Would you be interested? You seem to have recuperated well from your surgery...and back to your chipper, sparky self :) I teach in Nassau County NY
HI Jackeline, sorry I didn't return a reply earlier and also sorry to say that while I do enjoy working with other teachers, I can't make it to your school in the time left for this school year. On occasion I have visited other schools, mostly ones that are a bit more closer. I've done a few assemblies but find that my materials are better suited to classrooms settings. Hope you find something a bit more permanent, I know first hand how unsettling that can be.
This is totally cosmic. Brilliant! I have recently built a large outdoor eight seater timber pine table. I’m thinking of using your sand pendulum and spray adhesive trick to design a pattern on the tabletop and then once I’m happy with the design I will attempt to cover the design and entire table top surface with a clear epoxy resin. Do you think my idea will work Bruce? I recon the adhesive should bond the sand in place sufficiently so the application of the resin should not disturb the sand?
Hi Eddie, I've never tried the resin so I don't know how much it would disturb the sand pattern as it is applied. You might want to try it on a smaller scale first. I would be very interested to hear of your results. Good luck with it
I'm 74 years old and your videos and science experiments make me feel young again! Wish I could have had you as a teacher when I was in school.
I used these for a kid's demonstration a couple years ago and it went over awesome. All the kids wanted to bring people they knew back to the classroom to see what their particular pendulum could do. I used a board with a bunch of nails attached to it to hang the pendulums from, so kids could attach their two string pendulum to nails further or closer apart for different patterns. I started with a tarp for the sand to fall on but it was too slippery and the sand didn't stay in neat lines as it fell. What worked great was taking the door mats from the building and flipping them upside down so the rubber bottom was what the sand landed on. The lines held great and they were easy to clean.
Your videos are a great inspiration, Thank you.
Hi Mr. Bruce you are an artist, and also a good teacher.
Dear, Bruce Yeany, thank you! Your work is incredible and inspiring!
Another great video as always Bruce. The coloured ones almost look like neon signs.
Beautiful project. I'm with Grouchee and please keep making these great vids. Also, my grandkids love doing these with me.
You're the greatest Mr. Yeany !
As Always Thank you! for great videos and great ideas for teaching.
As always...
Really great practical ideas. !!! :)
I love your RUclips videos That's really cool with the multiple sand colors from multiple funnels You should grab fishing swivels and make it so you can spin the Sand funnels
I imagine this is a great vehicle for an engaging lesson on the scientific method. Especially controlling variables to get repeatable results.
How to mix science and art
4:44 History Guy's theme! Another great educational channel.
I don't have any idea from where you get these ideas....they are all always cool, interesting, amazing and mind blowing......
When's part 2? Never thought you could have this much fun (indoors) with sand!
The last time I posted two videos together, someone posted that the youtube algorithm won't list the second video to subscribers when they are posted at the same time, so I am waiting a few days.
Soooo beautiful!!!
Clipping an intermediate weight on the string and sliding it up and down should produce interesting effects.
I know im not in school, but all the stuff you do is interesting
I'm getting so many Yu-Gi-Oh arc V opening 6 Flashback by seeing this
Great project! Unfortunately our sand here in Hong Kong is too damp. We used sand from a sand bag from the hardware store, and sifted it to use just the fine sand which doesn't feel wet, but it kept clumping together and clogging the hole in the bottles. The Hong Kong humidity now averages 87%. Then the food coloring made it more wet and clumpy. My initial demonstration with non-colored sand worked better, so maybe the food coloring (though only a few drops, as advised) must have made it too wet to flow out nicely. Students still had fun with the pendulum bottles.
Humidity could be a problem only if it is damp, in your case I would suggest spreading the sand out on a big tray and letting it sit in a warm dry place, once it's dry the humanity shouldn't bother it.
Mr. yanny I'm from 7th grade and mr lum needs his catapult back for a experiment were doing and says you borrowed it
HI Joseph, actually it's my catapult but I would be happy to bring it back to AC for you and Mr. Lum to use.
@@YeanyScience thank you I didn't know that it was yours but thanks
3:34 Runic Eye of Zogorath formulated, now sacrifice your firstborn to unleash the armies of the Gorathian Realm.
You should get a TV show of your own.
HI, thank you for the videos that you share. I get so many ideas from you and one them is the sand pendulum. I'm trying this for our STEAM day, but I have not been successful. The sand gets stuck in the hole so I'm wondering if I'm using the correct sand. I bought the Quikcrete brand from Home Depot. The sand seems coarser compared to what you're using. Is there a particular brand that you use? Thank you for your response.
I've had that happen, two suggestions, use a piece of screen to shift out the larger chunks, I used one for the kitchen such as a flour sifter. Make the hole that releases the sand a bit larger. Good luck with your STEAM day.
@@YeanyScience Thank you for your suggestion. I opted to use paint again this year but I will definitely try the sand next year :)
Is there some math as to how long the string needs to be. I've seen small ones where the weight draws in the sand. But I've seem ones that seem to not draw any decent pattern
Coolest. Teacher. Ever.
Just curious, could this be used as a math exercise in ratio? Looking at the ratio of length with the two sections of supporting string? Students could construct it in a particular ratio, and then see what pattern the ratio produces. Any suggestions????
yes, I received a paper a while ago from students that did exactly what you are asking
6:04 heard the music and thought "wait I'm confused, this isn't a Doug Demuro video"
Well, I did ride in a Lamborghini once, so I guess we are very similar
reupload?
Yes, This video was removed and reposted due to a copyright issue with one of the songs I used, my mistake.
@@YeanyScience glad you re-upped! Thanks for another great video.
Why you don't get the attention you deserve? I don't know.
Because people would rather watch booties shake to thoughtless hip hop music :,(
Sadly the original one has more views than this
I had to replace it or deal with a possible copyright issue, it was my mistake and replacing it seemed the best way to solve it
👍👍👍🌸🌸🌸
Cool
Satisfying
Nice but mine didn't work. Even if I open the cap of my bottle, no sand comes out I guess there is some problem with my bottle or the sand(which is a rongoli(colour used in the festival known as holi) colour ). But this is a very nice video and you are a smart guy
the sand can't have large pieces in it that clog the hole, the sand must be dry to pour, make the hole in the cap slightly larger. This will also work with salt
Aaaammaaaazzziiiiinnnggggg
I am a HS Technology Teacher (woodshop). I teach a project based class called MST (math, science and technology) to 10th, 11th and 12th graders. I have been following you for a while now. I know you are retired now from your MS Science teaching position, but I would love to have you as a guest in my class this school year at my HS. I cannot offer to have you there next year because my position is not permanent and I am not sure where I will be next year. Would you be interested? You seem to have recuperated well from your surgery...and back to your chipper, sparky self :) I teach in Nassau County NY
Or maybe developing an Assembly? :D
HI Jackeline, sorry I didn't return a reply earlier and also sorry to say that while I do enjoy working with other teachers, I can't make it to your school in the time left for this school year. On occasion I have visited other schools, mostly ones that are a bit more closer. I've done a few assemblies but find that my materials are better suited to classrooms settings. Hope you find something a bit more permanent, I know first hand how unsettling that can be.
Hi Bruce,
I understand. It is a bit far. Thanks for your reply.
This is totally cosmic. Brilliant! I have recently built a large outdoor eight seater timber pine table. I’m thinking of using your sand pendulum and spray adhesive trick to design a pattern on the tabletop and then once I’m happy with the design I will attempt to cover the design and entire table top surface with a clear epoxy resin. Do you think my idea will work Bruce? I recon the adhesive should bond the sand in place sufficiently so the application of the resin should not disturb the sand?
Hi Eddie, I've never tried the resin so I don't know how much it would disturb the sand pattern as it is applied. You might want to try it on a smaller scale first. I would be very interested to hear of your results. Good luck with it
🌟🌷🌟
3:41 illuminati confirmed
👏👏👏👍🇩🇪
Instant Mandala. Monks are jealous now
With a glued surface u can make art , lol after my comment he does it