Satisfying | Innovative Science Toys/Gadgets

PhysicsFun is bringing you Satisfying | Innovative Science Toys/Gadgets
Sit back and relax. Enjoy 11 minutes of oddly satisfying scientific curiosities featuring various engines with candles, ferrofluid toys, kinetic art that uses physics, optical illusions, various forms of dices, math toys/shapes and more mindblowing stuff!
This video contains many interesting science gadgets, satisfying science experiments, innovative science toys, amazing science toys/gadgets and many more DIY, handmade physics toys, gadgets available on amazon, etsy, educational innovations, kickstarter.
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This video contains:
👉 Vibration Unthreading: a DIY project to see if just shaking a bolt at the right frequency could make a standard nut rotate and fall off Similar physics to the phase locking propeller toy featured in my last post. Motivated by videos seen on Instagram where a brass bolt is placed in magnetic putty and the nut mysteriously rotates up and off- now convinced that vibration is how that effect is produced. Here a small DC motor spins an offset mass to produce the vibrations.
👉 Spin Bank: a clever spring mechanism launches each coin into rotation along a symmetry axis on to a concave trapping surface. Angular momentum of the spinning quarter keeps it upright even as it bounces upon impact with the platform. Another spin on making saving spare change fun!
👉 Hyperbolic Holes: a straight rod, in this case a pencil, glides through a symmetrical pair of curved holes. The design is based on the hyperboloid, the 3D ruled surface traced by an offset rotating diagonal line. This device is sold as an inexpensive kit to assemble yourself, and includes a motor with geared drive and pre-cut pieces. The pencil is my addition- just the right size to clear the curved openings.
👉 "Top Secret": this top will stay spinning for more than a week- because it is actually a motor! The top is a dipole magnet (as revealed by Magneview film) and the base has an electromagnet that gives the dipole a push when the top comes near the center. An ingeniously simple circuit consisting of only a battery, a coil, and a transistor, is activated when the spinning magnet nears the coil turning on the electromagnet to give a boost to the spin of the magnetic top.
👉 Pendulum Snake- one of my favorite exhibits at exploratorium: ten swinging spheres, the first has a frequency of 15 swings per 30 seconds, the second has 16 in the same time, the third has 17, up to the tenth with 24 swings per 30 seconds.
👉 Magnetic Pendulum Array by exploratorium: 21 aluminum pendulums, each with a large magnet affixed to the end. The magnets allow kinetic energy to be shared. Note how the energy of the end pendulum is transferred to the rest in two steps- 1) the magnetic fields interact to damp the motion until 2) the end pendulum is captured into synchronized motion with the rest, allowing the energy to propagate to the front pendulum.
👉 Heat Pipe: a device that transfers heat with great efficiency- as demonstrated by this fantastic kit from educational innovations . Here a liquid crystal goes from green (room temp) to black (near freezing) showing the heat transfer to a piece of ice through a heat pipe (top) and a similar sized piece of solid copper rod (bottom).
👉 Toy Car with Magnetic Suspension Wheels
👉 Diamagnetic Levitation: tiny neodymium magnet trapped between two diamagnetic discs of graphite. Diamagnetic substances only have magnetic fields of their own when placed in an external magnetic field. Diamagnetic fields are pretty weak, so the top magnet is adjusted to help lift the tiny magnet against gravity.
👉 Galileo Drop Tubes
👉 Foucault Oscillator: like a swinging pendulum, the motion of a mass on the end of a straight wire spring is constrained to a plane. The container is moved around yet the orientation of the oscillating mass points in the same direction. Similar to the physics behind the famous Foucault Pendulum that keeps its orientation as the Earth moves underneath.
👉 South Pointing Spoon
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[@srinivasan1259]

one of the best channel I have seen ever Hat's off to you guys💐

[@physicsfun]

Thanks ! All credit goes to SCIENCE :)

[@nikhilp6799]

The Vibrating edges are designed for round move alternately < left and right > side so while vibrating, also produces some round movement of top, causing fan round movement. Plz suggest if my guess is false.

[@piyushmehta2563]

Corona - life changer You tube - career changer Tik tok - gender changer And••• Physicsfun- intrest changer

[@WolfWarrior01]

How does tiktok change your gender is my question? I have never heard anything of it doing that xD

[@adityagaikwadgd7590]

@@WolfWarrior01 Dont see it, it is cancer🤮🤮

[@roberta6641]

@@adityagaikwadgd7590 i beg to differ, cancer will ether kill you or leave you alone 99% of the time. tik tok is like aids, kills you slowly from the inside out if you do nothing about it.

[@hunnervirsingh3561]

What's the reason for the cartesian diver one, I couldn't understand?

[@antoniomaglione4101]

Great experiments, I appreciate watching them. For the music - I would avoid the excessively staccato rhythms and use some ambience music, or some soft sinthpop.

[@tidyleaf8591]

⃣ try to find that emoji

[@infinitygamer4991]

@@tidyleaf8591 🔳

[@tidyleaf8591]

@@infinitygamer4991 no

[@fredericheinrich7165]

The Background Music ist wonderful, good for this awesome projects.

[@akbarsk2156]

There is no background music .

[@darkmask8483]

LOL

[@sudipshrestha2692]

Lol! I thought My Headphones is Damaged 🤣🤣

[@erikgustavo5363]

Parece muito um funkzão proibido aqui do Brasil, simplesmente n consegui levar o vídeo a sério com uma música q me lembre isso lol

[@IngeniousOutdoors]

fun fact. magnetic opposites attract. so if your compass points north, its pointing to the south pole. or you could argue the north point of the magnet is actually mislabeled and is actually the south point on the compass pointing north...

[@georgeparkins777]

Yes, yes, all compasses are made in this way-- they are labeled by what the ends point to, not by which end of the magnet is aligned with each point.

[@sudipshrestha2692]

LoL! I thought My Headset is Damaged 🤣🤣🤣

[@_skzstay1264]

Just like the first clip, the large stick with groves resembles the bolt and the propeller resembles the nut, as you shake the stick at the right speed (in this case, running a dowel on the groves vibrates the stick) makes the propeller spin

[@shrutisinghania]

Vibration at an accurate frequency leads in rotation

[@rollingrocky3608]

😂😂😂😂

[@MyMohitSoni]

3:10 It should be on my way

[@bluecat2991]

The toy at the end is called a Gee Haw Whimmy Diddle. When you rub the rod it causes a vibration, obviously, because of the peaks and valleys on the rod. However it's not perfectly straight up and down either due to human error or by rubbing the rod at an angle. Because the hole in the propeller is circular this imperfection places the impacts off center, on a part of the hole that is angled compared to straight down. If it was possible the propeller would move off to the side, but since it can't the impulse created by the impacts causes it to rotate.

[@salsabilak3520]

My guess on today quiz: When the stick rubbing the notches, there will be a vibration appear and make the nail spinning. Because the nail and the propeller were attached, the vibration from the rubbed stick will spread to the nail and tada! The nail was spinning (sorry if my guess are wrong, i'm not good at physics ;^;)

[@physicsfun]

You have good knowledge of physics :)

[@zerodeathyt6451]

Its true

[@agapelove4992]

The Pyramids were built using sound frequency. The nut was a cool demonstration of what frequency can do. Now take that up several notches...!

[@bhupenderlawa8358]

Damn man .... I love your work and really want to see your face.

[@commenter2015]

🤨

[@elementalsigil]

That is why aviation mechanics use safety wire and cutter pins to lock nuts into place.

[@playerzer0876]

The nail was moving due to the frequency created when the stick was rubbed on the notches, similar to when the frequency can make a standard nut rotate and fall off. For ex- If we set our phone in vibration mode, and if the frequency is very powerful than it will make the phone shake and sometimes it will also make it fall from the table.!!

[@anullhandle]

Rubbing the stick causes a vibration in the direction of the notches (up and down) It also produces a slight left right vibration. It's out of phase . The oversize hole for the propeller allows the two out of phase vibrations to transfer the resulting rotation to the propeller. Changing from a finger on top of the stick or your thumbs fingernail on the side of the stick changes the phase relationship and let's you control the direction of rotation.

[@divyarajsinghjadav7683]

Love from India ❤️ How you make this?

[@maximemorin-bigras5560]

They share with different realm. Hindouism mantra work freakin untrue...am North america, it's isnt in my culture by far. I try some mantra and ive been surprise and scare by their efficiency... looking like if those tone sentance change code of your bios. I hear that Hindouism got over +++thousand mantra and god.... need to know about this culture

[@kuyaenan_gameplays]

The main reason why the propeller turns, it is because of the ff: -Applying the vibration on that thing. -When the vibration occurs, the propeller moves in circular motion, it is because they follow the thread path.

[@kronosuruk]

I don't speak english but your video is very beautiful and please pay your system 👌👍

[@gerardoalejandrordz.blanco6559]

Muy asombroso todo. Felicitaciones a las personas involucradas en este tipo de videos

[@Viraj_Karn]

I think like you showed us the first experiment of nut and bolt and said "Vibrating something at an accurate frequency leads in rotation......."

[@kashifhussain6503]

That's right because vibration makes it rotates

[@MeetPatel-bj1xx]

most simple toys with very complex behaviour .love your toys .

[@rakeshmalviya5315]

Ossom video, but these toys are making me jealous 😀😀

[@shadowx8853]

Good try, but it's awesome, and jealous your english is pretty good though (not trying to be mean)

[@ANJUSINGH-mv8pn]

This is my best channel because this channel shows crazy science experiments

[@ankitSharma-we4ls]

that's why because whenever the stick comes down slope by slope it makes some force that vibrates the stick in a fixed way. the fan rotates when we constantly rub the stick bcoz of vibration....

[@markusdeserno7321]

The vibration is only the beginning. I think the grain of the wood matters as well. Here’s why: the local “knocks” that happen when the stick goes over a notch create a transverse elastic wave that travels up the stick towards the end where the propeller is attached. But since the wood is grained along one of the two directions perpendicular to the rod’s axis, the two components of that transverse wave don’t travel at the same speed and hence get out of phase, creating an elliptic polarization. As a consequence, the nail at the end doesn’t just vibrate back and forth but elliptical, and that spins the propeller.

[@susmithayadav5083]

I want them all :D mostly the last two ( In bonus) :p

[@____Yadav___]

Amazing

[@CheeseNyan]

Why the thumbnail looks like coffin dance meme.

[@skyjack1]

Cool trick: If you make your right thumb move on the propeller stick with the rubbing stick, the propeller will rotate the other way.

[@RAHULSINGH-pt6gu]

I think this is because vibration during rubbing

[@MuhammadAdnan-ny8fn]

[sunburst] would be great back ground music

[@julianoverschie5673]

As for the music I suggest ruins from Toby Fox, from the game Undertale

[@ohnoesyoudedyeet1383]

Yes good idea

[@StudentWalaGamer]

It's bcoz when you rub the stick, it produces vibration.....and hence it leads to an elliptical motion of the nail in the center of a propeller. . . . . Btw.....ammmmazzing video I loved the toys👍👍👍👍👍👍

[@pratikshadorke8676]

The last of us part 2 has 'Crooked still (Ecstacy)' Music you should try in next video

[@Freak21056]

The "Propeller" is on a notch that has a screw like build and rubbing the stick on the grooves make a certain vibration (made by how far and how deep the grooves are) that makes the "propeller" shift up and down making it spin.

[@Gamer_king71]

Because of flowing charges

[@Alariah360]

The vibrations in the rod cause asymmetrical bouncing of the loosely attached propeller which causes rotation. The side you stroke determines which way you have to apply resistance with your hand and thus determines the direction.

[@lysmrtz]

oh, of course vibration just what i would've said myself

[@hashamakram5163]

It is due to the resonance produces...as the rubbing frequency matches with angular frequency of top wheel.....amazing these are!

[@SireCaracal]

Nobody: PF: *shows video in reverse*

[@velamgvibish739]

Blades in the stick rotates due to the vibration( like the vibrating motor threading the screw)!!!!

[@pattystomper1]

I was scratching my head for the experiment at 8:28, because I thought squeezing the bottle would make the air bubble smaller in either case, causing the diver to fall. But I realized squeezing the sides actually made the bottle expand outward, causing the pressure to go down. The air bubble expanded, and the diver rose.

[@mithu.bhattacharjee8221]

Awsome toy who gave you these toys your school teachers.

[@-NguyenVanHoa-A-dl5is]

Did you did this with many precise calculations?

[@ichapuramlakshmana2093]

Use neffex fight back song for next background music

[@jacobm672]

For background music I suggest something by Tobu, one of my favorite electronic music artists. My suggestions for songs are: Symmetry, Sunburst, Cloud 9, Hope, and Infectious.

[@marcellomarianetti1770]

For the hyperbolic holes, I remember that if you make a line (the pencil) rotate around a line which is not in the same plane as the other (the vertical axis in this case), you get an hyperbolic hyperboloid. The section of this surface with a plane can be an ellipse (not this case) or an hyperbola (this case). I think that's why the pencil fits trough that hole.

[@shaannanavati253]

Wow very nice 👍👍👍👍👌👌👌😍😍😍😍

[@tiger6654]

I can only say that the way the propeller spins(clockwise or counterclockwise) depends on how you hold the stick which affects the frequency of the vibration.

[@glassless_mirror]

You are increasing the pressure by decreasing the volume pressing against the front and back, and increasing the internal volume by pressing against the sides will decrease the pressure allowing the diver with less air to rise to the top. There’s a lot of science going on here.

[@CuccioloLives]

IMO you are a genious!.👍👍 And the gadgets??? I WANT 'EM ALL🙀🙀🙀

[@physicsfun]

Thanks for the compliment

[@TheAnical]

The propeller blade is slightly off balance and the frequency of vibration stimulates rotation. So its vibration vs torque, re-enforced due to the weight of the blade on the axis.

[@roshanpoojari9414]

If we make vibration of particular frequency with force at particular direction the rod will oscillat like circular pattern. The hole in the fan is larger than fitting size. It is same as we oscillat a stick what a role of duck tape (in place of fan in the video clip).

[@pradeep-kumar-gupta]

Very nice i liked galileo tube Your all videos are best ❤ 😘 😍

[@rittinpattnaik4445]

Vibration unthreading. The vibration created while rubbing the stick on the rugged surface makes the fan to rotate due to the vibration like it did with the bolt on the screw

[@commonrisk]

Run the stick over the rivets on the other stick in one direction to make the propeller spin one way. Run the stick on the rivets in the opposite direction to make the propeller spin the other way. So running the stick back and forward across the rivets can confuse the propeller's rotation, and cause the propeller to become stationary (as you see in the video)

[@miraop6204]

Bro please can u please tell me the name of the shop from where u buy these kind of awesome toys ..........#love physics love physicsfun love u guys ..........

[@abhishekkoundal6879]

projects are awesome😲😲😲😲

[@rainmanana]

The torque created by the hand holding the stick with the propeller switches directions when you apply the rubbing stick to the alternate sides

[@kaminikumari5498]

Because of shaking of the stick at tge right frequency helps the proppeler to spin

[@chessematics]

Vibration pushes the propeller wings forward one by one. The front motion converts into elliptical due to resistance in forward moving angle

[@Rcbforever927]

Your day will come soon enjoying with Million subscribers

[@physicsfun]

Great to hear your positive feedback :D

[@piruvira]

Hi everybody, my suggestion for your next video is: Fly "Intouchables" - Ludovico Einaudi

[@magnificent8530]

nice videos

[@gscottbB]

For background music: Wintergatan has released the rights to all of the songs to be used for any purpose. It's all great instrumental music.

[@1islam1]

🔴 What Is Islam? ⚠️ 🔴 Islam is not just another religion. 🔵 It is the same message preached by Moses, Jesus and Abraham. 🔴 Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. 🔵 It reminds us that since God created us, no one should be worshipped except God alone. 🔴 It also teaches that God is nothing like a human being or like anything that we can imagine. 🌍 The concept of God is summarized in the Quran as: 📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)[4] 📚 🔴 Becoming a Muslim is not turning your back to Jesus. 🔵 Rather it’s going back to the original teachings of Jesus and obeying him.

[@ayushdixit9001]

Its is becoz the fan at the top is very light in weight and by rubbing on the grooves present on the pipe pushes the air filled in the groves towards forward side this results in movement of the fan

[@homemadethingies627]

Hello, random person scrolling down the comments!!!

[@nikhilgaikwad5159]

Vibration is produced by in zigzag fashion and it's turn left to right and then right to left for rotating

[@krishnagupta826]

Love ur toys bro

[@alikhalid5693]

Faded, Lily, Darkside are my favorite.

[@cani_caiado1586]

Vibrational energy of certain frequency(resonance frequency) is converted into rotational energy causing the propeller to rotate

[@__thesquare]

i reccomend 'HOME-Before The Night'

[@angelagnau6258]

Great experiments! I love watching your videos! I also like this background music.

[@physicsfun]

Glad to hear that

[@rossyburns4392]

as for the stick question...... I say vibrational oscillation frequency is the cause.the diameter of the ( pin ?) axis caused rotational resonance in the propeller like a tiny hula hoop.

[@ebnmasr]

rubbing the stick on the zigzag part making random vibration to the fixed nail which rotate inside the center circle of the fan forcing it to go in the opppsite direction >> try to rub it with the left hand to make it go in the other direction :D

[@vasugajhana8729]

Vibration. I like ur questions of every week

[@TubeNotMe]

Gotta love any video with a gee-haw whimmydiddle!

[@shraddhayadav4797]

You are a genius bro ❤️❤️ 👍👍 keep up the good work 👍👍👍👍 ... from India ❤️❤️🎉🎉🙏

[@lakhyghuman2380]

Love from PUNJAB Omg It seems magic to me

[@jameschannel9110]

by rubbing the stick produces static energy. that's why the proppeler starts moving

[@Aaron_Abraham]

Beliver, Can I be your superhero

[@kendenny9729]

A certain frequency of vibrations make the prop spin . Check how the moving stick is held against the rod and length changes

[@MyRahasyaHINDI]

03:10 It should be Serhat Dumus

[@arfansthename]

I have a theory that Galileo might have made before: The reason why confetti falls like a heavy object in the vacuum is because there is no air resistance at all.

[@maxaltham1582]

That's what I thought. No air no air resistance

[@thealbinotadpole2878]

Yes. When air resistance is discounted, the objects will accelerate down at the exact same rate.

[@HackerVerse]

vibration is the ans of this week's quiz.

[@CesarGrossmann]

About the first experiment, can you make the nut rotate in another direction, or not rotate at all?

[@kameshparmar]

Correct manner of rubbing ... Create a vibration

[@amankumarsah8788]

You can put faded, ignite , summer days or animals as your next video's background music

[@zargonat]

Бывают у тебя видео и на много лучше

[@thamaliathukorala5220]

Answer : due to the rubbing over the rough surface of the shaft, vibration movement generates..and the vibration spread over the plastic plate... the only possible movement of the plastic plate is rotation so it starts rotate ..

[@Ye_Sahi_Bolega]

The propeller rotates because of Resonance because ut is attached to the center creating a Simple Harmonic Motion. This effect is known with different names i.e. if electrical called mutual induction, if wireless calked doppler's effect.

[@abdelrahmansaad8500]

The curves on the stick makes the shaking resulted from it provides the frequency needed to rotate the fan , i guess

[@sharonjaved1046]

Due to vibrations in the wooden body by the stick the nail also vibrates and the energy of vibrations is shown when the propeller is rotating

[@tylerbrink9571]

My answer for the quiz Vibrations cause the stick with notches to shake, which moves the propeller

[@Jangle101]

it is the force of vibration that is makeing the propeller move

[@DavidSlater-u6d]

Love the pencil one

[@niteshvalecha8913]

This can't be possible 😧 Can you please share your story? At which age you start to explore this type of thing?

[@shinymonkeygaming9449]

I'm ten 10