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5 Fun Physics Phenomena



Five cool physics tricks, but how do they work?
Explanations: http://youtu.be/jIMihpDmBpY
Check out Audible.com: http://bit.ly/AudibleVe
Leave your ideas in the comments below or subscribe for the answers next week.

Chris Hadfield in AUS: http://sciencealert.com.au/spaceoddity/
All tickets now sold out.

The Cane Balance:
Slide your fingers in from the ends of a horizontal cane to find its centre of mass.

Shot and Edited by Pierce Cook at the YouTube Space LA.

Music by Amarante: http://bit.ly/VeAmarante


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Комментарии:

Автор Genius Z ( назад)
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

Автор Dari Mellusco ( назад)
are those snatoms in the cup one?

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

Автор theFlam ( назад)
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.

Автор Mohsen Ensafdaran ( назад)
Thank very much you for this beautiful channel!

Автор Yashas ( назад)
I can't sleep for 10 days now

Автор Bishnu Mishra ( назад)
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.

Автор moonly ( назад)
thank you for your video

Автор Perineum ( назад)
Cereal has iron. That's all I got.

Автор cragnog ( назад)
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

Автор Pronomita B ( назад)
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

Автор Todd Lerfondler ( назад)
what im able to flip my phone like that...

Автор Christian Pelchat | Gaming ( назад)
I read that book :D

Автор m b ( назад)
IS IT NOT THAT THE HOT GAS OF THE TEA BAG BURNING IS MORE DENSE THAN THE STAND OF THE TEA BAG SO THE BURNING HOT GAS IS HOT AND HEAT RISES SO THE STRAND IS LIFTED UP WITH IT?

Автор m b ( назад)
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.

Автор m b ( назад)
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?

Автор Skinematic Films ( назад)
Nice ring, I see you're an engineer!

Автор TheRealRaichu ( назад)
The iron is cereal is magnetic

Автор kennyS ( назад)
Now that's physics

Автор Diamant Muska ( назад)
That's not a teabag rocket. It's a Norweigan Space Rocket

Автор Lucas Chamorro Tudurí ( назад)
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.

Автор baileyboy125 ( назад)
Actually if you spin the phone fast enough along the long axis around its centre of mass it doesn't deviate from said axis.

Автор A.J.M Compositions ( назад)
I had a mini heart attack when you dropped your phone

Автор Tyler Zang ( назад)
i peed a little on the toilet. just a lil

Автор Rane_ ( назад)
3:12 cause it has iron in it..... Badum Tiss?

Автор Shadow Gaming ( назад)
That was so dumb waste of my time

Автор Blarph Blublub ( назад)
4. It's because it has iron fillings in 'em.
I don't know the others.

Автор Toxic Caffeine ( назад)
One side of the phone is heavier, consequently making the phone rotate on a turned axis

Автор Toxic Caffeine ( назад)
The cereal attracts to the magnet due to the great amount of iron in the cereal

Автор Wolf Edmunds ( назад)
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.

Автор Cody Baker ( назад)
theres iron in the cereal

Автор Zechlin ( назад)
Isn't there iron in cereal?

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

Автор Azenith F ( назад)
He trolled us :(

Автор iRgarie ( назад)
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.

Автор newestlands780 ( назад)
the phone thing is to do with the airodynamics

Автор PlayfulNikita ( назад)
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.

Автор Henry Schmidt ( назад)
Cereal contains iron, I think

Автор Lali Philipose ( назад)
what rubbish

Автор Im Bad at Good Names ( назад)
Isn't water pushed by magnets? Like no matter that pole it is?

Автор Vortex ( назад)
3:10 Because cereal contains iron. Even if in very small amounts, it has it

Автор TJ Labbee ( назад)
I can do #2 correctly, it just takes a bit of practice.

Автор Michael S. Green ( назад)
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.

Автор Plankgang ( назад)
water bends because of electro-static energy which pulls objects towards it

Автор Victor Drouin Viallard ( назад)
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)

Автор green oranges ( назад)
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

Автор Yuvraj Mallick ( назад)
i think cereals have iron added i them.

Автор Hector F ( назад)
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 :)

Автор Tumwiine Andrew ( назад)
gd teacher

Автор Ichiwo Konnichiwa ( назад)
It works because of science.

Автор ThatGuyThere ThatGuyThere ( назад)
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

Автор julie Nicholson ( назад)
hands up everyone who dropped their phone trying the phone flip? sad faces for everyone who broke their phone trying the same.

Автор FreshTechDIY ( назад)
cereal is following magnet beacause it has iron present in it that attarcted that strong magnet

Автор Yee Yee ( назад)
1:29 cus it's totally a not an iPhone

Автор sumit mehta ( назад)
about that cereal, may be it contains some iron in it. 😁😂

Автор Demented Glitcher ( назад)
I'm not gonna watch this I just have to say go drop dead you faggy drop kick.

Автор Nirup Kanti paul ( назад)
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

Автор Srivishnu Rendla ( назад)
Who else thinks this guy might be gay?

Автор MattDoesStuff ( назад)
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

Автор Gamer 55 ( назад)
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

Автор Hollywood Envy ( назад)
For number 5 ... don't go to India, you'll have an exaltation like you won't believe ...

Автор billybob joe ( назад)
really you blurred the apple Logo
Its so obvious its insane

Автор Max Haibara ( назад)
3:58 he looks like the guy that receive miracle from the God in religious movie

Автор SIMON A ( назад)
4. serial has added iron in it

Автор Alla Ackbar ( назад)
Doesn't cereal have iron in it, making it slightly attracted to the magnets

Автор Tiger H. Lore ( назад)
That's also an effective way to stop someone tea-bagging you: light the teabag on fire.

Автор to be the man ( назад)
very good 😀😀😀😀😀😀

Автор Steven Gaulin ( назад)
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.

Автор Michael Lowe ( назад)
the cereal has iron in it

Автор Frontyer ( назад)
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.

Автор ItsReign ( назад)
Anyone notice the background of the beginning song? Halo?

Автор mueed ali ( назад)
https://www.fiverr.com/mueedali511/solve-any-physics-problems-and-physics?arrived_from_manage_gigs=true&display_share=true

Автор Ben ( назад)
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

Автор idrink bleach ( назад)
The cereal had iron I'm sure that's why it reacts to magnets

Автор Name Mrname ( назад)
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

Автор Pratik Poojary ( назад)
you said it wrong, the positive side should be of hydrogen and the to oxygen molecules on it are negative

Автор tarun patil ( назад)
amazing

Автор hemanth Kumar ( назад)
It s good so nise

Автор Natalia Kurz ( назад)
The cereal is attracted to magnets because it includes a very small percentage of iron. In Third grade they thought us something similar.

Автор AdminTuber ( назад)
center of mass- when one has more mass over it - friction is higher (friction coefficient x normal) other moves --> finally will reach center of mass

Автор AdminTuber ( назад)
tea bag rise - hot air lighter - less dense air pushed by denser air from bottom

Автор Shahzad Aziz ( назад)
Maybe you couldn't flip and catch the phone right was because there is a specific angle you might have to flick it at.

Автор Rogue Cevallos ( назад)
This is horrible to say the least. Thumbs down

Автор Kyle Steenerson ( назад)
is it possible the heat stream created enough lift to overcome the papers mass in the last moments?

Автор M Stew ( назад)
Rofl whoa crazy! wtf this is a joke.

Автор SersageRoll ( назад)
cereal is magnetic coz it has iron

heh

Автор Mubariz Saeed ( назад)
hi my name is vsause

Автор bryan robinson ( назад)
*Looks up "t-bag" rocket on urban dictionary*

Автор bryan robinson ( назад)
He has some nice ass teeth. Anybody who keeps their grill looking nice deserves recognition on it TBH.

Автор dios vandari ( назад)
cereals are magnetic because there is carbohydrates in the cereals and carbohydrates contains atoms of iron = Hence proved

Автор Fishum ( назад)
I'm British and I loved drinking tea but I've only ever seen those fancy shaped teabags like once or twice. And just a random question. Do Americans actually take the tea leaves out of the bag, because that disturbs me.

Автор ghulam shabbir ( назад)
the last one is due to convection current

Автор yasir amin ( назад)
another fun fact:

The two fingers will never move together in the first phenomena

Автор Kaiser King ( назад)
1. broke my grandmothers kane
2. broke my phone
3. clogged the drain
4. made my baby choke
5. set my house on fire

great party

Автор Tobias Knudsen ( назад)
listen bomb chronic under survival entertainment delicate.

Автор BE CREATIVE ( назад)
subscribe to my channel , I provide lectures for physics by India's best faculty and also some interesting facts about our surroundings

Автор Gerard Douché Sr. ( назад)
The amazing thing about our universe is that it can be comprehended; it does certain things and does not do others, and we can know what those laws are. The laws of physics control your life in a way that you are not aware of. *Google truth contest* and read "The Present" to see how we are not in control. The 1st 3 pgs. sum it up nice.

Автор Will Webb ( назад)
probably because it's not magnetic at all and its something else. great videos BTW. Liked James Hadfield's version of Bowie's Space Oddity.

Автор Dan neeah ( назад)
on #3.he never gave a reasonable explaination so i guess the charged Water molecule theory still wins

Автор Mukhamed Zarylkanov ( назад)
first phenomena happened in that way, because there is a friction between stick and finger. Friction is bigger in that side, which is bigger on weight. So finger moves slowly at bigger friction.

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