I'm only 12... I take Algebra 1 Honors and Physical Science honors, so this came pretty easy to me. This is going to be my weekend project. Thank you for making this video! Update: I finished making the pendulum wave in 3 hours. It's decent... I plan on rebuilding it later. Second update: I actually rebuilt it like 4 months ago, since my science teacher wanted one for the school so and someone sat on the old one
Thank you for the beautiful demonstration and for providing great instructions including the formula for determining cord lengths. I saw another video with each pendulum being one of six colours in sequence (red, orange, yellow, green, blue, purple), and it looked really cool. I'm wondering if there's a reason six colours worked so well, or if any number of colours would produce as stunning patterns. Maybe I should test it out...
I just started teaching physics and today I had my kids do a short lab with Newton's Cradle. At the same time as preparing that, I saw a video on this and while I won't be able to put it together for this year, I'd certainly give it a shot to be ready for next year. Good instruction and tips.
Imagine building a set of tire swings like this, that would be so cool =] Maybe with a slanted frame at the top, so the tires (while having different rope lengths) would all still be near the ground?
Oh my god, I thought the whole thing was gigantic and sitting on the floor far away from you until you put your hand on it and I realized it was on the table. Trick of perspective.
With little bit of effort, 100 fold wave pendulum can be made in Blender 2.81. Thank you for explaining the math. I did one wave pendulum with just 8 segments, but all linear, so "close but no cigar". :D
Great project,thank you. Minor suggestion for youngsters watching : might be a good idea if you walked them through the algebra calculation. Some kids may be lacking basics and it would a shame if they could not benefit from your astute experiment. Cheers.
That is a very cool project. In Canada, we have had the Metric system since 1976. You should try and make an electromagnetic pendulum and see how it would work out.
I am going to attempt this tomorrow with my 10 and 12 yr old using your measurements (we are not up to serious algebra yet) I love that one length of timber, some kite strings, thumb tacks and nuts will make something so cool. We are exploring waves.
NightHawkInLight well I'm happy your taking the time to make the highest quality videos. Personally I think its better to have to wait a long time for a good memorable video than keep watching a bunch of short lame ones. But I get it if someday you decide to shorten the vids and put them out more frequently though, if it makes you more money and your still having fun doing it.
My first thoughts were you pendulum lengths would be uniformly different (segmented points of an ark). But each length jumps around just a but . Wonder what pendulum lengths from an ark would produce. Then one could also alter distances (for visual effect). Also maybe: Each pendulum length the same the metal is close to the table and same distance from the table top. Under each pendulum 1ea. DC. low volt powered coil/single wire. Each coil has its own switch on/off (momentary contact maybe set up like a piano keyboard ?). Touch the switch and like a key on a key board the EMF moves it's respective metal object.
You should consider replacing Tmax with a number like 10π or 20π so that you don't have to deal with π. It will certainly make the whole process a lot more easy
It's a great project for community collage students studying math. I could just see the faces of all the students in my school trying to solve all these equation. I once pointed out how unbelievable it was for them not to be able to solve it, and everybody was annoyed at me. And i was labeled the asshole.
See what the effect of changing the various variables is. Personally I am interested in whether altering the lengths of the strings has an effect on how 'accurate' it is as old clocks that had longer pendulums tended to be easier to tune. It might also be possible to try showing how the gravity affects it. You might have to use a slanted board on a playground roundabout. Although it would be more accurate to climb a mountain, it doesn't sound efficient. Or else it would be cool to try and do a newtons cradle instead of each individual pendulum. How about trying it in different densities of gas? Ta for the video!
I've made a larger one now and it does become easier to measure because you're working with larger differences between pendulums. It also matters what you set the duration for in the equation because a longer duration means the pendulums will be closer together in length making little errors harder to account for.
Don't think you need all that math. If you look at the curve, it looks like a standard acceleration curve, or a logarithm along the x axis. You could just draw that on a piece of paper and mark equal spaces and use that as a measurement of how long your thingies have to be. Im pretty sure that the waveform amplitude is a correlation to the weight. So you need to make absolutely sure your weights are equal. The length of each one seems to be the timing. As the weights transform potential energy to kinetic and back, each pendulum needs a different time for that because the radi are different. So in short, you don't need math. Higher pendulum weight stores more potential energy when you lift them thus higher weight = longer runtime. Nice science toy. Could easily be achieved by kids in first physic leassons teaching about potential/kinetic energy and acceleration.
I'd like to see a powered pendulum. ie perpetual pendulum. Maybe using a baby rocker or something if that would even work. Come on Hawk, make it powered!
Very nice video and great explanation. Now, can you build the same pendulums set, just in a bigger scale. At your yard, 2 meters to the longest rope, down to 0.5 meter to the last short one. It will work much impressive. This little set in this video is not showing the real effect. To short, to fast. Please make a huge one, that can "work" for loger time
You don't go through the mathematical steps (or strategy) to find K. Since finding K is absolutely needed to apply this concept, it seems like it would be important to mention that instead of "simple algebra". A basic refresh on quadratic equations shows that solving for K in this case is not "simple". Calling it simple algebra is condescending. I would say that has an discouraging effect as a person could come away thinking "wow, I don't even know 'simple algebra, this must ALL be over my head".
You could make the algebra easier by choosing any value for K and solving for the first pendulum length. A little trial and error would allow for fitting the length to the height of the pendulum. Ooc, are you a science teacher?
I think this could still be kid friendly, if someone were to make a set of paper measuring sticks which could be printed. They should be precise enough, cheap, and easily distributed.
Huzzah for pushing Metric! I always try to get metric stuff when I can... and sometimes it's hard in the states! Maybe I should move. Or write my congress people. Or something. :)
I also made same model by seeing this video. I got first prize in my science fair.
Bro help me to do this
My wife and I enjoyed this video
We've found sir King Random.
Grant Thompson - "The King of Random" are you going to do something like this on you're Channel???
Grant... Learn from this guy... No CLICKBAIT thumbnails.
Nick Ross Grants videos thumbnails all are from the actual video, with a little editing to make his videos more click able.
ITS THE KING!!!
Thank you for the great explanation! I've wanted to make one of these for a while now.
Cool pendulum wave. Nice build, explanation, and thanks for the math formula behind it. Always look forward to seeing your videos!
You enjoyed the math? So your not English,?
Every video you turn out is top tier! It's just amazing how you make great content every time.
It's beautiful 😍
Keystone Science ay keystone science!
The Real Damon Jackson NightHawkInLight brought hiself Grand Thomson and Keystone Science together! Nice work NightHawkInLight!!😂😂
Keystone Science love your vids
Keystone Science if you ever get some time could I teach you how to mig weld?
Keystone Science you are beautiful grgnom
I wouldn't underestimate those kids ability to make this.
the math is the problem
though, i'm sure a good number of kids could probably do it.
I'm only 12... I take Algebra 1 Honors and Physical Science honors, so this came pretty easy to me. This is going to be my weekend project. Thank you for making this video!
Update: I finished making the pendulum wave in 3 hours. It's decent... I plan on rebuilding it later.
Second update: I actually rebuilt it like 4 months ago, since my science teacher wanted one for the school so and someone sat on the old one
@@Seedx hehe thanks for the motivation!
@@Seedx hey,I'm gonna make this for my Physiscs project!
Did you have to make any written report or a document about this project as well?
Thank you for the beautiful demonstration and for providing great instructions including the formula for determining cord lengths.
I saw another video with each pendulum being one of six colours in sequence (red, orange, yellow, green, blue, purple), and it looked really cool. I'm wondering if there's a reason six colours worked so well, or if any number of colours would produce as stunning patterns. Maybe I should test it out...
Nice. Bringing back my college days on physics. Luv that the equation not dependent on 'mass'.
It'd be interesting to see something similar with a isocrone guide rail, making each pendulum pass the center at the same time.
Great video as usual, glad to see your still climbing in subs after the 1mil.
these large nuts
Got em!!
I was looking for this +1
I got deez nuts in the mail yesterday
IKR 3:35 he's holding his two large nuts, and talks about them.
haha
I just started teaching physics and today I had my kids do a short lab with Newton's Cradle. At the same time as preparing that, I saw a video on this and while I won't be able to put it together for this year, I'd certainly give it a shot to be ready for next year. Good instruction and tips.
Imagine building a set of tire swings like this, that would be so cool =]
Maybe with a slanted frame at the top, so the tires (while having different rope lengths) would all still be near the ground?
Oh my god, I thought the whole thing was gigantic and sitting on the floor far away from you until you put your hand on it and I realized it was on the table. Trick of perspective.
How did I not find your channel till now!! Awesome video 👏🏼 💡
I did it works!!!!!! My students and I express our sincere thanks, super cool activity.
Wonderful demo, my son would like to make a similar model for an exhibition. Thank you!
Great project! Did any kind of wave pattern occur when you first put the nuts in a linear slant?
Wow! Nice work and video! Thank you! How big or small should it be to be seen most dramatically. 5 feet tall of like yours?
You rock thank you for the formula and a great explanation of it!
With little bit of effort, 100 fold wave pendulum can be made in Blender 2.81. Thank you for explaining the math. I did one wave pendulum with just 8 segments, but all linear, so "close but no cigar". :D
that thing is nuts!
this project was cool to build. thanks nighthawkinlight! I suggest giving this a try it's really satisfying.
Great project,thank you. Minor suggestion for youngsters watching : might be a good idea if you walked them through the algebra calculation. Some kids may be lacking basics and it would a shame if they could not benefit from your astute experiment. Cheers.
That is so BEAUTYFULL !
That is a very cool project. In Canada, we have had the Metric system since 1976. You should try and make an electromagnetic pendulum and see how it would work out.
I just made this for my 9 year old son's STEM fair! Thanks!
This could be made into a nice hobby kit that explains all of the math and stuff
You inspired me to make a small scale model. Will probably make it thursday. Great video!
Thank you! Planning to build one in my yard, and you definitely just saved me from redoing all the hangers!
I am going to attempt this tomorrow with my 10 and 12 yr old using your measurements (we are not up to serious algebra yet) I love that one length of timber, some kite strings, thumb tacks and nuts will make something so cool. We are exploring waves.
I was searching for a best project and I have got it thank you sir🙏
This is awesome i could watch this for days.
plus its good for hypnotizing people :)
Keep up the great for your videos are always great !!!!!
Awsome vid mate! Love it, i really like these woodworking projects you've been putting out lately :D
Wonderful explanation. By your instructions kids can make this on their own
he had this idea before CRH mades his video is takes days to make and upload it
Who is CRH?
Crazy Russian Hacker (?)
Yes Crazy Russian Hacker
Fantastic video, incredibly descriptive, I love these types of projects
How is your subscriber and view count so much lower than other diy science channels (Grant Thompson) when your videos seem so much better?
TH-cam wants channels to post daily to do well. I can only make a video every two weeks or so.
NightHawkInLight well I'm happy your taking the time to make the highest quality videos. Personally I think its better to have to wait a long time for a good memorable video than keep watching a bunch of short lame ones. But I get it if someday you decide to shorten the vids and put them out more frequently though, if it makes you more money and your still having fun doing it.
gue kim couldn't agree more well said
I am truly AMAZED!! I have learned so much! Thank you, Alicia S.
"8 feet" isn't so hard to understand or convert... it's when the engineers start giving it all that "5/32 of an inch" that melts my brain.
My first thoughts were you pendulum lengths would be uniformly different (segmented points of an ark). But each length jumps around just a but .
Wonder what pendulum lengths from an ark would produce.
Then one could also alter distances (for visual effect).
Also maybe:
Each pendulum length the same the metal is close to the table and same distance from the table top.
Under each pendulum 1ea. DC. low volt powered coil/single wire.
Each coil has its own switch on/off (momentary contact maybe set up like a piano keyboard ?).
Touch the switch and like a key on a key board the EMF moves it's respective metal object.
This is really good. Thank you a lot
Thank you!! We're going to make one to use as yard art and you have made the process much easier!!
It's really amazing ... I must try to make it ,,,👌👌 great
You should consider replacing Tmax with a number like 10π or 20π so that you don't have to deal with π. It will certainly make the whole process a lot more easy
Not a bad idea, that would make it a little faster.
NightHawkInLight when you have to do these calculations for a large amount of pendulums the time is quite substantial
It's so beautiful and meticulously done :), thanks for your sharing and keep up with your good work !
This video was made very well and very helpful for my science project. Thank you soo much.
Frankly this is really good,you have done an amazing experiment,
Great video. Thanks for the explanation..
I'm going to d this for my science fair project. Thanks for the tutorial!
What would the visual pattern look like if all the pendulums were the same length?
It's a great project for community collage students studying math. I could just see the faces of all the students in my school trying to solve all these equation. I once pointed out how unbelievable it was for them not to be able to solve it, and everybody was annoyed at me. And i was labeled the asshole.
It's beautiful. Thank for sharing how to make it.
Thank you sir it's very helpful to me i will try for my daughter
The length of each pendulum is up the thread only or upto the end of each bolt pls reply
Middle of each nut
@@Nighthawkinlight is the kite string u used in the video made of plastic
Thanks, the process is fun and refreshing.
As always, clearly explained.
thanks
Very, very cool project- thanks for doing all the math!!! 😃👍😃👍
Congratulations from Spain, friend.
Thanks for including the equation.
Conversion is easy, kids should learn both.
Would it be better to have the pendulums hang from the middle of two boards as opposed to hanging over one side like that?
Possibly
could you post a video of that first clip going for an hour or 10? its really relaxing with the music
See what the effect of changing the various variables is.
Personally I am interested in whether altering the lengths of the strings has an effect on how 'accurate' it is as old clocks that had longer pendulums tended to be easier to tune.
It might also be possible to try showing how the gravity affects it. You might have to use a slanted board on a playground roundabout. Although it would be more accurate to climb a mountain, it doesn't sound efficient.
Or else it would be cool to try and do a newtons cradle instead of each individual pendulum.
How about trying it in different densities of gas?
Ta for the video!
I've made a larger one now and it does become easier to measure because you're working with larger differences between pendulums. It also matters what you set the duration for in the equation because a longer duration means the pendulums will be closer together in length making little errors harder to account for.
Rustoleum Mirror effect. You need some, i think it might work great for your telescope project.
You enlightened me with the equation. Thank you !
Omg ur amazing thank u for taking us step by step with this project 👍🏾
Awesome project!! I may just have to build one.
Great video and super good explanation, so happy I found your channel.
Don't think you need all that math. If you look at the curve, it looks like a standard acceleration curve, or a logarithm along the x axis. You could just draw that on a piece of paper and mark equal spaces and use that as a measurement of how long your thingies have to be. Im pretty sure that the waveform amplitude is a correlation to the weight. So you need to make absolutely sure your weights are equal.
The length of each one seems to be the timing. As the weights transform potential energy to kinetic and back, each pendulum needs a different time for that because the radi are different.
So in short, you don't need math.
Higher pendulum weight stores more potential energy when you lift them thus higher weight = longer runtime.
Nice science toy. Could easily be achieved by kids in first physic leassons teaching about potential/kinetic energy and acceleration.
I'd like to see a powered pendulum. ie perpetual pendulum. Maybe using a baby rocker or something if that would even work. Come on Hawk, make it powered!
I appreciate a brilliant mind. I will be attempting to build this myself. I hope I get to send messages for help lol.
Love it. Gonna try
Awesome! Yup gotta make one.Thanks you
I'm assuming here, is the "length" the distance from the pendulum pivot to the center of mass of the Bob?
Yep
Really enjoyed your video. Want some thoughts on making this one at home.
Great experiment! I wish I'd done this stuff as a kid. Oh well, retirement looms.
Thanks so much
I love that pendulum.
Very nice video and great explanation.
Now, can you build the same pendulums set, just in a bigger scale.
At your yard, 2 meters to the longest rope, down to 0.5 meter to the last short one.
It will work much impressive.
This little set in this video is not showing the real effect.
To short, to fast.
Please make a huge one, that can "work" for loger time
I have a newer video with a larger pendulum
@@Nighthawkinlight Now you are talking.
I will look for it.
Thank you.
Amazing video...
With a lot of research
Wow amazing, loved it
Great father-son project.
You don't go through the mathematical steps (or strategy) to find K. Since finding K is absolutely needed to apply this concept, it seems like it would be important to mention that instead of "simple algebra". A basic refresh on quadratic equations shows that solving for K in this case is not "simple". Calling it simple algebra is condescending. I would say that has an discouraging effect as a person could come away thinking "wow, I don't even know 'simple algebra, this must ALL be over my head".
Did you use metric nuts?
When you measure the pendulum length, do you just measure the sting or do you measure to the center of gravity of the nut?
Center of gravity. Center of the nut should be close enough
@@Nighthawkinlight Thanks!
beautiful patterns.. but where can i reach the curve equation?
I have a link in the video description
What is the difference between pushpins in metric?
thanks mate... very well explained too
Excellent explanation!!!
You could make the algebra easier by choosing any value for K and solving for the first pendulum length. A little trial and error would allow for fitting the length to the height of the pendulum.
Ooc, are you a science teacher?
sacrilege!
roughly what is the length of the middle wood piece sustaining all the nuts?
I think this could still be kid friendly, if someone were to make a set of paper measuring sticks which could be printed. They should be precise enough, cheap, and easily distributed.
best for science exhibition
Great and useful!
simple, nice n awesome , thanks for sharing science video , be the light
This is cool but I like the various PVC weapons more.
My cat and I enjoyed this video
Huzzah for pushing Metric! I always try to get metric stuff when I can... and sometimes it's hard in the states! Maybe I should move. Or write my congress people. Or something. :)
I wish that I could do this!!
Love it