5 Fun Physics Phenomena

Comments: 7 237

  • Kayvon Rad
    Kayvon Rad 1 day ago

    _Here is how the cereal one works:_

    It only works with *Cheerios,* not all cereals because at the time of this video (they have now changed it) Cheerios used to have extremely tiny bits of *metal* inside them to make them more *crunchy*. They got away with it by putting "iron" in the ingredients list and making people think it's the iron in blood instead of metal. This has nothing to do with physics. I know this because I did a project on it.

  • That Nerd Guy
    That Nerd Guy 2 days ago

    The iron in the cereal is magnetic

  • Pizza Bird
    Pizza Bird 2 days ago

    I know #4. The cereal is moving because it has iron in it.

  • Uddeshya Raj
    Uddeshya Raj 2 days ago

    for the first one, when your fingers are at equal distance from C.G of rod , the torque acting on rod about both fingers are same so is the normal reaction force, and the force of friction b/w the rod and fingers and rod doesn't stick to any finger and the reach C.G at same time. But when fingers are at unequal distance from C.G the torque acting on the closer finger by the rod about the farther finger is greater than the torque acting on the farther finger by the rod about the closer finger. so normal reaction force b/w the rod and closer finger is greater and so is the frictional force and it sticks to the rod and only the farther finger moves towards C.G till both are at equal distance from the centre. And then things go on as it is in the first case

  • Hectic Haze Gaming
    Hectic Haze Gaming 3 days ago

    i did the phone flip first try lol

  • Fülya Can
    Fülya Can 5 days ago

    I, who has nothing to do with physics - at all, would guess that the cereal is not dragged by the magnetic but by the water that reacts to the magnetic vibes. . ? .

  • Laura Tew
    Laura Tew 9 days ago

    With the teabag rocket it is because the hot air rises because it makes the air molecules move faster.

  • Star Atom Jinjo Tweety

    The first: the left side has bigger mass that means it is heavier than the end of the right side.. so you tend to find the balance on the left side. The second: the speed of spin chooses the least energetic movement. The third: I guess Vanderwaals Force? The plastic cup has highly excited electrons so therefore it attracts the delta positive side of water. The fourth: cereal contains iron. The fifth: heat goes up like think of fire specially in 1 g gravity on Earth, therefore it floats up.
    .. it is a quick reponse so do not judge me too much..

  • shanker lohani
    shanker lohani 13 days ago

    love you Boss

  • Ho Wing Yip
    Ho Wing Yip 13 days ago

    0:30 MINDBLOWN.

  • Abhigyan Kashyap
    Abhigyan Kashyap 13 days ago

    Such an interesting phenomenon....... 😑😑😑😑😑

  • Alexander Pak
    Alexander Pak 14 days ago

    1 trick is simple. You move your fingers and you feel if one side of the stick is going to fall. At That side you leave your finger and on the other side you move your finger still. So you do it unless your fingers will meet themselves

  • Tadeusz Klonowski
    Tadeusz Klonowski 15 days ago

    #1 It's balancing itself because of difference between dynamic and static friction force

  • Divyesh Gamot
    Divyesh Gamot 17 days ago

    last one cause, the density difference is so high it can lift up the last few grams of paper!but paper must be very light

  • _*Austin Parker*_
    _*Austin Parker*_ 18 days ago


  • MrEdUrAt
    MrEdUrAt 20 days ago

    Where is my dad?

  • Anastasia Majick
    Anastasia Majick 20 days ago

    "Then set it on fire"

  • _untitld
    _untitld 21 day ago

    i stopped watching this highly intellectual video which can further my understanding of our universe to watch porn. then came back to finish it.

    aren't humans great

  • cool kid
    cool kid 21 day ago

    Anyone click cause you thought it was about Danny brown

  • Peter H
    Peter H 22 days ago

    Almost landed that 720 phone flip

  • Daniel Middleton
    Daniel Middleton 22 days ago

    teabag is easy. when it gets close to the bottom, tilt becomes so light that the suction from the fire using up the air above is able to list it

  • Chris Boothman
    Chris Boothman 28 days ago

    How many people broke their phone because of this video

  • Philip Yao
    Philip Yao 1 month ago

    With the water one. With the negative force repelling, the molecule rotates until only the positive side is being attracted

  • neuro hydraulics
    neuro hydraulics 1 month ago

    Wonderful Vaeritasium people, here is a theory i'd like to discuss with you, please run it past you logic circuits;

    Bouyancy creates a centre to peripheral potential force that relative to gravity is crucial in terms of biophysics.
    Like a rubber submarine, with a rubber central heating system inside it. The deeper it goes underwater, the more it pushes back aginst the crushing forces around it.

    This crushing force is fed through the rubber walls into the rubber pipes and struts inside the submarine and is continuously shifting, changing density and changing volume.
    Even when completely still, the potential force stored in the elastic tissue is significant.

    Any oscillations caused by sonic / seismic type energy the submarine encounters due to environmental noise AND internaly generated sound /pressure waves are altered by this potential force because density changes pitch, tone and volume.

    The curved surfaces angle of the elastic membrane tissue changes as it is compressed and relaxed but even while still, acts as a parabolic sonic mirror to any internal vibrations,
    curved egg shaped parabolic surfaces being the only efficient shape to deal with pressure differentials and bouyancy requirement.

    Here for the rubber sub analogy to continue we have to fill the submarine with water and lift it onto the air, let's call it "H.M.S. human body" an anti submarine, whose job is to protect the water inside being evaporated off in all directions, and the sailors called kidneys, liver, spleen from being too dry or roughly treated.

    The parabolic mirror shape of the fascia and skin type outer layer of the H.M.S. human body means that any regular sonic activity inside the submarine, eg.sailor heart playing his drums, will bounce around the watery internal cavities for a long time as water conducts sound brilliantly.

    As the sound waves bounce off the satelite dish shaped outer shell, in certain places in the "human body" the sound waves form standing waves and nodal lines of extra volume and relative silence , especially if someone left the sound system on and it is generating feedback in very tight high pitched ultrasonic frequencies, and very low throbbing infrasonic frequencies.

    Air behaves like a fluid and creates 1.03kg of force per square centimeter at sea level, the human body has on average nealry 2 square metres of skin.
    That is two tonnes of crushing force being generated at seal level relative to being on a planet such as Mars.
    If one stand inside a large enough bell jar and releases the potential energy, ie create a vaccuum the body expands as the potetial energy is released.

    Does that mean that through diligent practice one could gain the ability to dilate the central nervous system in it's entirety and release this potential energy in tiny, invisble ranges of movement?
    Hell yes! you just have to learn to NOT think for long periods of time as thinking contracts the nerves. Plus have fantastic postural alignments and superlative breathing habits.

    Come on people, two tonnes of force at your fingertips!
    The art is called nei kung and is popular in parts of China.
    I learned it from a strange and wonderful man called Bruce Frantzis who runs a company called energy arts.

    I am steeped in the language of physics from my family background (Father, grandfather all physicists) yet i learned these skills out of neccessity as i was disabled in my late teens.
    I am trying to engage with open minded people about the possibility that there is a difference between genuine fighting masters of the art trying to talk to scientists and hippies mouthing off because they want to feel special.

    Please check out my Youtube channel where I show these phenomena in action and let me know what you think.
    And breathe from your belly;)

  • Zeninji -D
    Zeninji -D 1 month ago

    The finger with the weight on it eventually gains the traction to push weight onto the other finger, once the other finger has more weight it does the same thing back, until both fingers are together under the center of mass.

  • Genius Z
    Genius Z 1 month ago

    i really liked it because i'm very curious about physics topics and unsolved equations but the problem is i haven't learned physics much .only in mid school and high school
    does anyone know any physicist youtuber?
    or a way to teach myself college's physics

  • Dari Mellusco
    Dari Mellusco 1 month ago

    are those snatoms in the cup one?

    HXAPÉWiZZ 1 month ago

    i have already (before watching this), done the phone flip.

  • tbdz
    tbdz 1 month ago

    The first one is actually very easy to explain.
    When you have a lengthy object like a cane, the amount of force applied to your hands depends on where your fingers are placed. If you place them exactly 10cm from each end, the end with the most weight will apply most force, and the other hand will easier move towards the middle. When that happens, there is a loss of force at the other end, and when it becomes small enough, the hand at that end will start to move towards the middle.

  • Mohsen Ensafdaran
    Mohsen Ensafdaran 1 month ago

    Thank very much you for this beautiful channel!

  • Yashas
    Yashas 1 month ago

    I can't sleep for 10 days now

  • Bishnu Mishra
    Bishnu Mishra 1 month ago

    oh !! i liked it very much. i didn't know that polarisation of water by charged cup isn't the correct explanation for bending of water.

  • moonly
    moonly 1 month ago

    thank you for your video

  • Perineum
    Perineum 1 month ago

    Cereal has iron. That's all I got.

  • cragnog
    cragnog 1 month ago

    that first one depends on you trying not to drop it. If you moved both fingers in at the same rate it would most likely not work, but you changed the rate either finger moved accordingly so that the cane didn't fall either side

  • I'm Not Sure About This

    CEREAL: it contains iron which is a mineral from which we get bones

    TEABAG: the heat actually made it lighter than air as hot objects tend to go up

  • Todd Lerfondler
    Todd Lerfondler 1 month ago

    what im able to flip my phone like that...

  • Christian Pelchat | Gaming

    I read that book :D

  • m b
    m b 1 month ago


  • m b
    m b 1 month ago

    CEREAL IS MAGNETIC BECAUSE IT HAS MOFUCKING IRON IN IT. and it is also less dense than water so it can be moved around by the magnet while floating around on water. OR BECAUSE THE WATER IS ATTRACTED TO THE MAGNET SO THE WATER IS PULLING THE CEREAL WITH IT.

  • m b
    m b 1 month ago

    IS IT NOT SO THAT: hydrogen atoms are positive and oxygen atoms negative in H2O, Your body released e- and became less negatively charged, the cup absorbed the negative e- and became more negatively charged, cup= -, H= -, cup and H attracted, water drawn to cup?

  • Skinematic Films
    Skinematic Films 1 month ago

    Nice ring, I see you're an engineer!

  • TheRealRaichu
    TheRealRaichu 1 month ago

    The iron is cereal is magnetic

  • MDshayan!
    MDshayan! 1 month ago

    Now that's physics

  • Diamant Muska
    Diamant Muska 1 month ago

    That's not a teabag rocket. It's a Norweigan Space Rocket

  • Lucas Chamorro Tudurí

    My takes are:

    1- The finger that is closer to the center of mass supports more weight, and thus has a stronger contact and friction than the finger far away. This always makes the finger further away to move more easily to the center of mass than the one further away.
    2- Aerodynamics, turbulence, and the fact that the secondary rotation axis has less moment of inertia.
    3- The electric field from the cup is not uniform. I've heard that the electric field generated from rubbing can actually be very powerful.
    4- Cereals have a lot of iron (?).
    5- Hot air rises, taking the remains of the bag with it when it's light enough.

  • baileyboy125
    baileyboy125 1 month ago

    Actually if you spin the phone fast enough along the long axis around its centre of mass it doesn't deviate from said axis.

  • A.J. Miller
    A.J. Miller 1 month ago

    I had a mini heart attack when you dropped your phone

  • Tyler Zang
    Tyler Zang 1 month ago

    i peed a little on the toilet. just a lil

  • Rane_
    Rane_ 1 month ago

    3:12 cause it has iron in it..... Badum Tiss?

  • Shadow Gaming
    Shadow Gaming 1 month ago

    That was so dumb waste of my time

  • Blarph Blublub
    Blarph Blublub 1 month ago

    4. It's because it has iron fillings in 'em.
    I don't know the others.

  • Toxic Caffeine
    Toxic Caffeine 1 month ago

    One side of the phone is heavier, consequently making the phone rotate on a turned axis

  • Toxic Caffeine
    Toxic Caffeine 1 month ago

    The cereal attracts to the magnet due to the great amount of iron in the cereal

  • Wolf Edmunds
    Wolf Edmunds 2 months ago

    When you flip the phone like that, there are two ways the phone can rotate. Along the horizontal (pitch) and the vertical (roll) axes on the screen. It can't spin along the plane of the screen (yaw), for obvious reasons. The phone has a much larger moment of inertia around the pitch axis than the roll axis. Since angular momentum is Iω where ω is the rotational velocity, the smaller the moment of inertia, the faster something spins given the same momentum (like a figure skater). Thus the phone is very sensitive to rolling and very insensitive to pitching, meaning a tiny torque in the roll axis will send it spinning while a great torque in the pitch axis can barely turn it.

  • Cody Baker
    Cody Baker 2 months ago

    theres iron in the cereal

  • Zechlin
    Zechlin 2 months ago

    Isn't there iron in cereal?

  • John Wink
    John Wink 2 months ago

    if you flip the phone end over end in space it would spin end over end perfectly ( that's just based on my theory)..

  • Azenith F
    Azenith F 2 months ago

    He trolled us :(

  • iRgarie
    iRgarie 2 months ago

    Kind of an old video to be commenting on like this, but here's my text wall anyway. I don't know if any of this has already been said since I don't see anyway to search youtube comments?

    (1) As you move your fingers inward, your brain tries to maintain the balance by subtly changing the speed of each finger. You can kinda see him doing this. Either that, or it has something to do with the weight on either side of your fingers changing as you move them in. This might cause the friction to change thereby slowing or speeding your fingers and maintaining the balance.
    (2) There is a good video explaining the phone flipping thing but I don't remember who did it.
    (3) Hmm, honestly I always believed the water was attracted because it was polar, like you said. I feel like I remember hearing that static electricity has a very strong gradient but I don't know.
    (4) Most cereal has dietary iron added to it, but it is actually just very small iron filings. If you blend cereal up, put it in water in a clear container, and touch a magnet to the bottom, you'll see a small pile of iron filings. So that's why it's attracted to a magnet.
    (5) As the tea bag burns it looses mass. Once enough, or all, of it has burned it is light enough to be picked up by the small current of heat created by the flame.

    Just some thoughts. I'm curious to see what others have to say.

  • newestlands780
    newestlands780 2 months ago

    the phone thing is to do with the airodynamics

  • PlayfulNikita
    PlayfulNikita 2 months ago

    With center of mass, you actually balance the object, rather than magically meet your fingers in the middle. While moving fingers towards the center of mass, he was waiting for one of his finger to advance further for balance - that is why you can do it at any speed and start at any point. Watch his finger suddenly stop and wait for the other finger to catch up for balancing the object.

  • Henry Schmidt
    Henry Schmidt 2 months ago

    Cereal contains iron, I think

  • Lali Philipose
    Lali Philipose 2 months ago

    what rubbish

  • Im Bad at Good Names
    Im Bad at Good Names 2 months ago

    Isn't water pushed by magnets? Like no matter that pole it is?

  • Vortex
    Vortex 2 months ago

    3:10 Because cereal contains iron. Even if in very small amounts, it has it

  • TJ Labbee
    TJ Labbee 2 months ago

    I can do #2 correctly, it just takes a bit of practice.

  • Michael S. Green
    Michael S. Green 2 months ago

    God based magnetism on YouTube explains and demonstrates how all disciplines of science work. You should check it out and stop making lame videos that you don't understand.

  • Plankgang
    Plankgang 2 months ago

    water bends because of electro-static energy which pulls objects towards it

  • Victor Drouin Viallard

    1. Friction increases on one finger when the stick balance its side. Then this finger won't move until the situation is inverted (the other finger moving)

  • green oranges
    green oranges 2 months ago

    For the last two things, cereal contains lots of fortified iron and for the teabag rocket the fire gives it heat and when the bat is fully burnt it floats up ( because heat rises ) as the ash is almost lighter than air it just needs that small amount of heat to make it rise like a hot air ballon it also works with napkins if you put the napkins on the top of a fire they will float up and start flashing

  • Yuvraj Mallick
    Yuvraj Mallick 2 months ago

    i think cereals have iron added i them.

  • Hector F
    Hector F 2 months ago

    I remember when I was younger, my friend tried the first one on me with an imbalanced pole and out of coincidence I did it first time :)

  • Tumwiine Andrew
    Tumwiine Andrew 2 months ago

    gd teacher

  • Ichiwo Konnichiwa
    Ichiwo Konnichiwa 2 months ago

    It works because of science.

  • ThatGuyThere ThatGuyThere

    He says that an text book example that is used and has been proven true hundreds of times is wrong, but can't say what actually happened

  • julie Nicholson
    julie Nicholson 2 months ago

    hands up everyone who dropped their phone trying the phone flip? sad faces for everyone who broke their phone trying the same.

  • FreshTechDIY
    FreshTechDIY 2 months ago

    cereal is following magnet beacause it has iron present in it that attarcted that strong magnet

    PICKAJEW 2 months ago

    1:29 cus it's totally a not an iPhone

  • sumit mehta
    sumit mehta 2 months ago

    about that cereal, may be it contains some iron in it. 😁😂

  • Demented Glitcher
    Demented Glitcher 3 months ago

    I'm not gonna watch this I just have to say go drop dead you faggy drop kick.

  • Nirup Kanti paul
    Nirup Kanti paul 3 months ago

    The no. 4 incident happend because cereal producers add some amount of iron in their cereals to make them more healthy.... As it provides ion in our diet

  • Srivishnu Rendla
    Srivishnu Rendla 3 months ago

    Who else thinks this guy might be gay?

    • dontzenyourselfout
      dontzenyourselfout 2 months ago

      ...and does it matter? why?
      vous êtes triste, trés triste
      ora pro nobis

  • MattDoesStuff
    MattDoesStuff 3 months ago

    If i get 120 subs i will knock on random peoples doors and when they open the door i will scream pineapple i will make a video of it

  • Gamer 55
    Gamer 55 3 months ago

    the cup attracts it because everything exerts magnetic force or gravitational energy in magnetism we assume every atom to be a magnet and when we static charge the cup , The atoms get aligned and therefore making it a magnet and it makes a magnetic field so eventually exerting gravitational energy and pulling the stream of water

  • Hollywood Envy
    Hollywood Envy 3 months ago

    For number 5 ... don't go to India, you'll have an exaltation like you won't believe ...

  • billybob joe
    billybob joe 3 months ago

    really you blurred the apple Logo
    Its so obvious its insane

  • Max Haibara
    Max Haibara 3 months ago

    3:58 he looks like the guy that receive miracle from the God in religious movie

    SIMON A 3 months ago

    4. serial has added iron in it

  • Alla Ackbar
    Alla Ackbar 3 months ago

    Doesn't cereal have iron in it, making it slightly attracted to the magnets

  • Tiger H. Lore
    Tiger H. Lore 3 months ago

    That's also an effective way to stop someone tea-bagging you: light the teabag on fire.

  • to be the man
    to be the man 3 months ago

    very good 😀😀😀😀😀😀

  • Steven Gaulin
    Steven Gaulin 3 months ago

    The center-of-mass demonstration with the cane is not a physics phenomenon; it's a psychological phenomenon. You can't do it in "one shot" because your brain cannot accurately estimate the distribution of mass across the length of the cane. But you can do it by moving your two hands inward because you are successively computing, re-computing, and adjusting; as you move your hands you get visual and tactile feedback that lets you correct as you go.
    Maybe I'll think about some of the others tomorrow.

  • Michael Lowe
    Michael Lowe 3 months ago

    the cereal has iron in it

  • Frontyer
    Frontyer 3 months ago

    Cereal is magnetic because it contains iron.

    Tea Rocket: My guess is that it heats the air and it creates different airpreassures, so when burned out it will get sucekd up in the air.

  • ItsReign
    ItsReign 3 months ago

    Anyone notice the background of the beginning song? Halo?

  • mueed ali
    mueed ali 3 months ago


  • Ben
    Ben 3 months ago

    for the first one it works with the f=u*N and at every state, the finger will move if the N is "=" to each other and then will find the center of mass

  • idrink bleach
    idrink bleach 3 months ago

    The cereal had iron I'm sure that's why it reacts to magnets

  • Name Mrname
    Name Mrname 3 months ago

    1: When more mass is at one side, gravity pulls it more, less friction at the OTHER finger, then, when more mass is on the other side thr other fingers goes closer, this happens only 1 time i think, and it doesnt lift fully because then the finger supporting it would need to move
    2: Air resistance OR instabilities caused by the metal frame-heavier i know objects have a center of mass idk.
    3: Quantum magic or awesome science
    4: all objects can get magnatically aligned from strong magnets. The water kills all ftiction so it moves easily. I think this has sth to do with 3
    5: The material is very light and in the end a very thin string survives. The hot air goes up, air resistance from the string pulls it up.
    I say this in all my science comments, this is what happens when a small person is curious about EVERYTHING from 8 years old

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