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Amazing Pendulum Wave Effect!

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Be sure to watch the entire video to see all of the patterns that are created. At the end of the video there are 2 links to watch 2 more versions of the video.
This is a very well known effect that has been performed a countless number of times. I wanted to try and different version by using the black lights and also to add a little production value instead of just simply showing the effect.
The effect works by using a formula that provides the specific length for each string. When all of the pendulums are started at once the patterns will start to form. The pattern resets after about 1 minute. I glued white poster board on the sides of the nuts and used a black light, causing the white to glow.
You can download this song on itunes:
itunes.apple.co...
Name of song "Break Emotion"
Check out 2 more versions of the pendulum wave effect:
• Amazing Pendulum Wave ...
• Amazing Pendulum Effect!
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Опубликовано:

28 авг 2024

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Комментарии : 2,5 тыс.

@AmiVarsano 10 лет назад

simplicity + accuracy + creativity = spectacular demonstration.

@Scarletscarfs 3 года назад

What?

@MilkandDyskit 10 лет назад

The equation looks like this; T=2π√(L/g) where g=9.8 (approximate acceleration due to gravity on earth in metres/second^2) "L" being the length of the pendulum string, "T" being the period of 1 oscillation. if the pendulum string is shorter, the time taken to swing from one side to the other and will be shorter, this can explain the different time the swinging actions take, giving the wave like effect. Mass, height and shape are not important as air resistance is negligible in this scale of experiment guys.

@RobotGustaCake 10 лет назад

You're a genius.

@r.a.6459 6 лет назад

In short, T² is directly proportional to L.

@user-si6zu6wp7n 5 лет назад

I know the equation but it is not complete, it does not take into account the effect of the resonance with the adjacent pendulums, in the case in which the pendulums are in ferromagnetic material, it is also necessary to take into account the magnetic fields which mutually influence each other .... real situation is much more complex, the equation you mentioned applies to a single pendulum sufficiently far from other pendulums, placed on the equator at 4 meters above sea level, where G = 9.80665 m / s², in a vacuum sealed chamber pushed, at the temperature of 4 ° C and the only force exerted on the pendulum is that of gravity, it is a purely theoretical condition far from the real conditions and would not give an exact result anyway ...

@xyzct 3 года назад

T=2π√(L/g) is only an approximation for an ideal pendulum where θ is so small that sinθ ≈ θ

@ryleighmiller900 Год назад

So confusing

@New_Wrench 10 лет назад

at times, it looks like DNA spinning around

@kyriakosreizis 10 лет назад

At 0:55 and 0:58

@DR-br5gb 6 лет назад

Reel Hawkins I had the same thought. Surely they here has to be a relation between our dna and wave probability.

@DanksterPaws 4 года назад

D. Ryan no

@DanksterPaws 4 года назад

D. Ryan The shape isn’t even called “DNA” It’s a double helix... you can find it in tons of places... even the strands of keratin that make up your hair

@DoomlsGriefx 3 года назад

At times also like RNA ;)

@teresae.8932 8 лет назад

I have nothing better to do than watch this over and over yay

@wayneschmidt490 8 лет назад

Great video! I saved as a favorite to show to my six grandchildren. They're going to love it!

@hakimibnobaydah 6 лет назад

Wayne Schmidt Lucky grandchildren

@intosavage9213 9 лет назад

New Sony PS5 Loading screen...

@SamSam-qj6iq 8 лет назад

SONY MAKE THIS A THING!!!

@stupidmcdumbass4642 8 лет назад

+FR - Clan I actually find Xbox better then PS1,2,3,4,fi...oh wait thhat one isnt already out

@SlyHikari03 5 лет назад

Yes! Sony! Please! This would be great!

@abcdeg7343 4 года назад

it will be released soon

@abcdeg7343 4 года назад

Axel Van Eijck hi

@cianoneill_ 4 года назад

Wow I have never seen anything like this on my 91 years on earth. Amazing

@borja_liad6099 8 лет назад

Saw this originally in 2011, and now, in 2016, still amazes me. Awesome

@lumex3 Год назад

How about now in 2023?

@r.a.6459 2 месяца назад

Watching this in the new era where Hamilton-Ferrari is a reality (2025).

@G4mm4G0bl1n 8 лет назад

Thx for this. It explains a lot of things. :) “If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.” ― Nikola Tesla

@frenchment 10 лет назад

I'm really trying hard to figure out why 250+ people gave this a thumb down

@avyutanvi 4 года назад

sad its 429 now :/

@r.a.6459 2 года назад

446 as of today

@guitarheroprince123 9 лет назад

That's a real good explanation of the time period of a pendulum being independent of the bob mass and only depends on the length of the string!

@Cynthia95ish 12 лет назад

This is amazing. I thought of doing something similar with bowling balls and steel reinforcement rods out in the backyard, you know, one of those executive toy ball bearing clicker novelty things, only on a much bigger scale. This kid who lives down the street from me actually built one and got it swinging, but he stepped in between it and they had to take him to the clinic.

@MatematicaRio 11 лет назад

This is amazing! Congrats! :)

@jotave7358 3 года назад

Eae procópio de 8 anos atrás. Como vai a vida?

@MatematicaRio 3 года назад

@@jotave7358 Ô!... Melhor do que nunca! :)

@DZTWoo 3 года назад

8 Years ago, jesus chris

@JarodJesus 10 лет назад

I could watch this for hours..

@5LoZeRzPrO 2 года назад

I always come back to listen to the music.

@r.a.6459 2 месяца назад

It brought me back to 2014...

@deemend3838 10 лет назад

Awesome! My physics professor showed my class this during a lecture, and I loved it!

@kimjong-un2406 10 лет назад

Create a 10 hours version of this!

@couchpotato2128 10 лет назад

Why?

@theologynerd1689 10 лет назад

abacada seesyou drugs. or at least that was my first thought when I saw the video; how I could have watched this for hours when I used to smoke a lot of weed.

@blipblop92 9 лет назад

it won't go for 10 hours, unless you're in vacuum and the strings are greased up real well hehe

@ChronicDNA 4 года назад

@@blipblop92 lol

@MrBukkakebandit 10 лет назад

This is just NUTS!

@SebbyG0 11 лет назад

It's dancing with me. It's like this incredibly benevolent force that wants me to know that there's no reason to be afraid. Sometimes there's so much beauty in the world, it makes my heart burst.

@deprecated33 9 лет назад

Woah!! My brain is BLOWN! how is this possible?! They were all released at the same time!

@IkesDaddelbox 9 лет назад

The Blender!ZER The longer the strings are the slower they swing. It's that simple.

@crowcorpse1562 9 лет назад

What the actual fu*k. I AM GOING TO ATTEMPT THIS

@anastasiadunbar5246 9 лет назад

Nova Hayes I also made a shader based on this. www.shadertoy.com/view/XlXSD8

@mrr283 8 лет назад

+Nova Hayes It's just because pendulums have a different period swing depending upon their length. He just has a gradually lengthening bit of string for each glowy bit. Kind of looks like a xylophone, but with strings and masses instead of bars.

@bubblevision 12 лет назад

very cool

@lukyluk_py 3 года назад

very cool

@Infloresence 11 лет назад

of all of your videos this one I have found to be the most thought provoking, there is just so much going on ...

@astrokmb1 11 лет назад

one of the most beautiful things i've ever seen.

@FizzVizard 9 лет назад

Love this !!

@tacticalkyuubi8147 9 лет назад

***** no one says it any more neither should you

@robertgorczyca1331 9 лет назад

Our brains make it amazing. We see patterns, waves and we understand it as a kind of order. Maybe there's some kind of order but we can see just lets say 10% of it in this simply movements. The more creative mind the more subjective patterns. you know what I mean.

@CharlesKAfroNinja 9 лет назад

wow. :)

@TheEsteemedSirScrub 9 лет назад

It's not really our brains, the wave occurs becuase each pendulum has a slightly different frequency of oscillation from the different lengths of string. This kind of order is simply inherent to the universe, or more specifically, periodic motion. We see a pattern because there is one, nothing about it is random.

@CharlesKAfroNinja 9 лет назад

Kevin Stitely WOW. :O

@ShellBAtoms 5 лет назад

FABULOUS! I'm blending science and literature with my 5th grade students tomorrow - looking at pendulum patterns and waves, and then into the Pit and the Pendulum - to go with our late October study of Edgar Allen Poe! This is the icing on the pendulum cake of videos! THANKS!

@Samstraining 12 лет назад

damn, you should start a museum/exposition with all your illusions/science/art! I'm sure everyone would love to pay entrance to see a lot of your work in real life.. I would!

@arstgkneio 11 лет назад

T = 2(pi)sqrt(L/g) where T = period of pendulum L = length of rope g = acceleration due to gravity this works for pendulums that are displaced a small degree. the L of each pendulum is longer than the last, therefore, according to the equation, the T of each pendulum is bigger than the last. some interesting things i noticed: the pattern of the oscillating pendulums resembles sinusoidal waves. 1 wave - 0:39 3 waves - 0:50 2 waves - 0:57 3 waves - 1:10 1 wave - 1:20 very peculiar

@pennymac16 12 лет назад

I am not too sure about it and I have only thought about it for a few minutes but I think you just have to keep the differences constant. So you would have to space the nuts apart in the same distance and, which is the most important of course, have the lengths of the strings differ in the same amount. I believe he used twelve nuts. Take one nut, hang it up and divide the length of the string you left by twelve (so it has to be the one with the longest). Then go down in these 12th steps for each

@ADTCloneBH 12 лет назад

Actually, it's called differential equations. We can describe how things move in reality by observing multiple instance, determining relationships and constructing physical laws. These laws can then be used inside a differential equation to account for various forces that attribute to the movement of the objects. These differential equations can be used to find the length each object should hang to create this effect, and hence, you get this.

@DigressBeats 12 лет назад

This is one of the coolest videos I have ever seen!

@Anonymous01959 11 лет назад

The mass of the weights is the same. It's the length of the strings. The different lengths create different frequency in the speed that each weight swings back and forth.

@teresae.8932 8 лет назад

I have nothing better to do than watch this over and over;)

@Skillsdotcom 12 лет назад

it's so cool how it goes from one wave to multiple and back to one :D

@Beskhuepnm 13 лет назад

The time for them to complete one "round", is T=2*pi*sqrt(length/9.81), and thus the longer ones take more time to swing... that creates the changing patterns :)

@oObadphishOo 13 лет назад

wait so you take boring stuff and turn it into some one the coolest shit i have ever seen? i like this guy.

@angelrendon8937 11 лет назад

The lenght of the string affects the period of the pendulum, that's how these masses, despite of being released at the same time, move at different rates. T= 2pi Square Root( lenght of string/ gravity) If analyzed with Energy, they all have different Gravitational Potential Energy and therefore, different Kinetic Energy. GPE=KE mgh= 1/2mv^2

@asmaa2651 8 лет назад

Simple concept, yet a mind-blowing !! Amazing , thank you.

@IcepickL 11 лет назад

Never thought the period of a pendulum could be put to such cool effect. Thank you so much physics.

@technoan88 11 лет назад

this is the coolest thing my eyes have ever been bestowed upon when i saw this and really noticed all the patterns i was amazed this is truly amazingly beautiful keep up the good work man and make some more stuff like this!

@CoreyCat4 12 лет назад

First time I've been mesmerized in my life!

@CraftyWarriors221 10 лет назад

If you don't know why they were released the same time but they started doing waves it's because it's all about how long the string is

@ahjanimation 11 лет назад

Legends say that they are still waving to this day...

@FlyingLineman 11 лет назад

Excellent use of light to demonstrate this motion. Very well done!

@lifeparvezv 12 лет назад

If you notice the pattern changes throughout the video... something has to be varied for the patterns to change. If it is simply just to do with the length of the strings then the pattern would remain the same. The frequency of the light is being varied to create the variety of patterns. I know this... I did this experiment during my A-levels.

@Thedoctorkirby 11 лет назад

The symmetry is beautiful

@jaemsdig 12 лет назад

this works because the wave frequencies of each pendulum meet at the least common multiples. 1:01 and 1:32 are examples.

@wraithRaptor 12 лет назад

It CAN be done using just varying lengths of string. The RELATIVE oscillating frequency is all that needs to differ to cause this effect.

@michaelhaydenbell 13 лет назад

@ThreeCheersForBryan - Doesn't matter as long as the lengths are all of equal increments and distance apart. For example, if one string is 18in. then make sure the next is 17, the next is 16, 15, 14, etc. Also each string needs to be the same distance apart.

@rhino921000 11 лет назад

I always come back to this video for the music

@eduardodelrio1973 9 лет назад

Amazing visual effect!!!!!!!! Just Great.

@user-ik1sw2ns3n 7 лет назад

Оо! В темноте-то ещё более эффектно смотрится этот старинный фокус-мокус.

@HYPRKLSTRKMPLX 12 лет назад

i am definitely making one! I dont know how i could have lived so long without one.

@burny88th 11 лет назад

Why would 200 people go out of there way in the negative lives to dislike this? I can't understand??

@tYl3r11fearZ 11 лет назад

Because longer pendulums have longer swing times or periods,so if they all start at the same time, the pendulums will gradually get more and more out of phase and will eventually line up again.

@MickeyBuchananfriends 11 лет назад

Me and a friend were thinking of doing this as a science project for school. Thanks for the video.

@peterhub1 12 лет назад

this is like beats in sound. play two different tones together and they get louder and softer periodically.

@3dsmaniac123 11 лет назад

That.. Was... AWESOME!!!!! Because of Brusspup I'm starting to acually LIKE science.

@aibonewt 11 лет назад

Nice. For version three, how about covering each pendulum with a disc of reflective tape and filming in the dark with a bright light near the camera lens?

@vaurix 12 лет назад

I watch one video and that's all it takes for a subscription. Damn that was cool.

@AndreNdoye 12 лет назад

this illusing is amazing and the music makes it that much better

@macgyvershe 8 лет назад

that was amazing and profoundly moving at the same time. Star

@cssplayer91 12 лет назад

best illusion by brussup yet

@Kevinseacucumber 10 лет назад

first video i saw of yours, its the one that made me subscribe and im glad i did. happy 200th video!

@pablo_demegori 10 месяцев назад

The song is so cool too, man.

@jforjustin001 12 лет назад

I don't think it is about a flickering light at all, rather the time it takes for each pendulum to swing from one side to the other.

@2013danrazor2015danrazor 13 лет назад

a hundred of these would be freakin epic!!

@homersimpsonii5455 11 лет назад

Cool how they all came back to the same motion at the end. :)

@bbatman601 10 лет назад

All your films are sooo EPIC!

@luc-405 9 лет назад

Idk if anyone else noticed but the number of sets of waves in this video is exactly 10 if you count them correctly: 1, 3, 2, 3, 1. I wonder if there's a mathematical/physical formula able to explain this?

@AlexLong1000 12 лет назад

THE GREAT AND POWERFUL TRIX- I mean, BRUSSPUP

@zane4240 5 лет назад

Watching this after 7 years.. Feeling Nostalgic

@MariaAngeladeCamargo 10 лет назад

Great! Congrats, it's a nice post! I've seen an old version, without lights. This one is really impressive... The other two videos of same subject are very good too.

@theghost5931643 11 лет назад

I am hypnotized now.

@danbeltz4322 12 лет назад

That could only go two ways either, amazing or scary as hell but it would be worth it i agree

@VARM2012 12 лет назад

I swear it looks like a whirlpool or tornado thing at 1:16 that goes around and around my eyes hurt like hell after watching that but it was so cool and totally worth it

@DieCiuryburies 12 лет назад

If you concentrate you can acually control in which direction this vortex thing goes!

@NeedlessQuestions 12 лет назад

You always have the best soundtracks ever! ♥

@lifeparvezv 12 лет назад

I remember this experiment when I did A Level Physics. The key to understanding this is the frequency of the light source. The light source is basically turning on and off very fast but our eyes see a continuous light. By varying the speed at which the light is turned on and off, you see the pendulum objects in a different position.

@onlyfathskie 13 лет назад

this vid makes me smile

@ricanbabiigurl 11 лет назад

I liked this video before I even watched it cuz I knew it was going to be amazing.

@iamiller09 11 лет назад

WOW! That looks just like the thing our teacher showed the class way back in 10th grade physics.

@archkral 12 лет назад

Physics: The longer the string connecting the mass, the longer the period of oscillation. Brain: OOH! MAGIC!

@watcherofzideozeszz 12 лет назад

i have synesthesia and could hear the patterns and it sounded awesome i feel like thats equivalent to 2 years of physics class

@chimamiresatoh 12 лет назад

That was truly beautiful.

@guitarrx3girl 13 лет назад

ok bruss... that was just so cool... great music mix too! Emily

@IzzyPersons 12 лет назад

There is something similar to this at the Don Harrington Discovery Center . . . :) I love that place. Science everywhere!!!

@baldeaglediscgolf 13 лет назад

@GefroreneSeele Much thanks man! Wish I had known about this before. Thanks for taking the time to point it out for me:-)

@Awi46 8 лет назад

Saw Harvard do this but not with Black Light...Cool additional effect.

@jordancollins7378 8 лет назад

tyyu5

@stuffers09 11 лет назад

The formula for this is 2π(L/G)^(.5), if anyone's curious.

@ThePlec 7 лет назад

The entire motion like behavior is an illusion. A precise mathematical model of the phenomenon can be Obtained by solving for a dynamical system of 12 Differential equations one for each pendulum. Variation of the pendulum length leads to the discrepancy in the period. By Solving for the position of each pendulum (select an appropriate coordinate to project the position) at an arbitrary time t > 0 , you will get a beautiful description of the motion. Have fun.

@tuswraith 12 лет назад

You, sir, are a genius.

@EpicCgan 13 лет назад

honestly, what u do is so awesome!

@aakkoin 12 лет назад

this is the greatest thing ever

@thechrisgrice 12 лет назад

Think you need to resit your A-levels my friend. All that's different in each case is the length of the string. The time period of a pendulum is approx. equal to 2pi*sqrt(L/g) where L is the length of the string and g the acceleration due to gravity. Because each one has a different time period, the small differences accumulate over each successive swing of the pendulum. Eventually, two pendulums that were only 0.5secs out of sync are now much further apart and so their relationship changes.