MythBusters - Phone Book Friction
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- Опубликовано: 7 сен 2024
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Will Tory and Kari successfully pull apart two phone books in 30 minutes (without breaking their teeth)?
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2009: “Everybody has a phone book”
2020: “What the hell is a phonebook?”
It's another word for Ebook because it's a book on your phone.
why would they fall out of business, seems like in 2020 they would be bigger? I have one
Joe Mahma because nobody uses landlines anymore except older people with spare cash and businesses.
Before the internet
Lol
I want to know who manufactured a book whose spine could withhold over 250 pounds before tearing.
It's not clamping on the spine.
The soviets...
Engineering principles at its finest
Its difficult to pull normal books apart like that. Doesnt have to be a phone book. I tried it a week ago.
I’m pretty sure him saying Tory weighs 250 pounds is a joke lmao there’s no way he is that heavy
0:57 "...that anybody can try because everybody's got a phone book!"
How old is this...?
ButterKatt Animations 7 years
+ButterKatt Animations I still have phone books..............
+ButterKatt Flipnotes I'm guessing older than you if you don't have a phone book or know how to get one ;)
We have couple phone books floating about the house the newest one is pretty skinny
They still distribute them... You don't even have to ask, they just appear on your doorstep once a year... At least in Illinois
Fun fact: once they reinforced the spines of the books and tried it again they literally had to use an APC and a light tank to pull them apart.
Ephesians 6:10-18 says, Finally, my brethren, be strong in the Lord, and in the power of his might. Put on the whole armour of God, that ye may be able to stand against the wiles of the devil. For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand. Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; and your feet shod with the preparation of the gospel of peace; above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked. And take the helmet of salvation, and the sword of the Spirit, which is the word of God: praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints. The bible is no old book. You have to really let Christ open your eyes; to see the world in shambles. Many people say it's a religion to lock up people in chains, and say it's a rule book.. why? Because people hate hearing the truth, it hurts their flesh, it's hurts their pride, it's exposes on what things have they done..people love this world so much, s*x, money, power, women, supercars.. things of this world. Still trying to find something that can fill that emptiness in your heart. You can't find that in this world.. only in Christ, the bible is no chains, it's a chainbreaker. Breaking your sins into pieces... Repent now, and turn back to the true Lord only.. God bless.
😊😊
With all those pages interlocked like that, it's basically as if you're trying to pull a plank of wood apart. Not as easy as it sounds.
Good point
@@Riu.f wood* point
Cap would disagree
@@LopeForestLope dumb
I watched this episode when it aired and I wanted to BUST this myth and also my LOAD!
NOKIA : *sees video*
NOKIA: ah finally an honorable opponent has arrived
Worthy*
"You're now my rival"
*Our Fight Will Be Legendary*
@@genericclass4058 *Battle
@@kennwhite5350 Why can't it be honourable?
this concept has a lot of potential. like building something indestructable by normal means just by overlapping layers of stuff
Do you still use this account
@@edifetai6863 yeah
@@xenovia489 you are not:@44USELESS44
@@edifetai6863 yea i do
@@edifetai6863yeah sometimes
Cary: Anybody's got a phone book
.....
What's a phone book?
Such a millennial
come on, are you 5? I KNOW WHAT A PHONE BOOK IS AND THE LAST TIME IVE HAD ONE WAS 8 YEARS AGO!
Correction: Everybody born before 1980.
Anh Triệu I was born in 1996 and know what a phone book is
I've seen one, brother. But never open and look into them. To this day, I still don't know what inside them.
They did this trick at their live show and suspended Adam from the ceiling. The show was awesome
Tori's adolescent shenanigans were always the highlight of the build team for me. It was like "look, we know you want to do all this stuff, so I'll do it for you to show you what happens and how much it'll hurt."
The Mythbusters are sOOOOOOOO COOOOO9L
How’s life
How’s life
@@masonpl4704 its good dudes
@@steamed_ham3304 its good dudes
@@mandubabulam oh ok hope you continue having go that way
It’s 2019... I have no idea where I’d find a phone book
I have 20 you can borrow. Worse than telemarketers...
They still make them they are just super thin now
You have no idea because you touch yourself at night
They still get delivered to my house
For some reason we still get a phone book dropped off at the front door, a little thinner than it used to be though. Like who needs this??
damn phone book are now a thing of the past
I remember everyone needed one
I literally had to explain what they were to some kids the other day. Made me feel super old. After 5 minutes of explanation they still thought I was fucking with them.
Jack Quick I have a phone book, I use it to hold a door open, and I'd probably used it for fire fuel if I had the chance
crack head or just call the operator
we still get phone books where I live actually
I use phone book to hit some bees if they come near me and it is super effective.
"Everybody has a phone book" Ah, the good old days
I guess their favorite genre is “friction”
Stop
AHA
Now that's a slice of fried Gold
I thought it was duck tape🧐🤔
Booooo. Boooooooooo.
0:24 look at the lady on the left she is amazed
K FC She is SHOOK
Shooken
Shike
Shaken
Haha Yeah, your mom looked well impressed
The narration is seriously underrated in the show.
I remember a bunch of us watching this in our dorm common room, and we immediately set about working to replicate this together. Of course, the phone books in Socorro were a bit smaller (< 1/2” thick). We were amazed how much these smaller books could hold.
Everyone who thinks there is tape or other type of adhesive can easily test this myth yourself with two magazines...
Michael Michaud, are you sure? The glossy paper used for many magazines might actually slip more easily.
@Owen Yin Well the tape is there to prevent the books from just opening. If they open then the pages are no longer touching and there is no friction, which wouldn't really be a test of this myth.
We meet again 360p
Swaggadie haha
2009 what did you expect.
xl there is plenty of full HD footage from 2005...
I checked on Wikipedia and RUclips introduced 720p in July of 2009
Before that, it was 360p or 480p at best, and most (older) computers were probably unable to play 720p in a browser
o sheeet didnt see the youtube videos age. i thought it was posted in 2015 or something and the OG video was shot in 2009. that explains
I can remember being a teenager, watching this episode on the discovery channel website, and staying up till 4 AM putting two phonebooks together page by page. I eventually got them together, and hunt them on my wall lmfao
Honestly id like to see that. Might have to do that one night lol
You still have it?
Do you use a bow or firearms or spears or what in the hunt?
@@RJiiFinknife and patience.
@@RJiiFin I used my bear fists, which I ripped off the arms of a bear with nothing more than my hands
“Everybody’s got a phone book”
Oh, the good ol days
Engineers are now connecting bridge cables with two interlocking phonebooks for new suspension bridges. They could just make a longer cable, but it's more fun this way.
How's life
hello
I love how everyone in the comment section acts like a phone book is ancient history. Here's a little perspective, electricity was invented 138 years ago, the computer was invented 81 years ago and the internet we know today has only been around for 27 years.
Spree Gaming ya but no one still uses a phone book.
What's a book? 😂😂
Spree Gaming show me someone who actually still uses a phone book and I’ll show you a liar
And the earth we live on is only 4.6 billion years old, what's your point?
Lmao is that all you people can say. Man you young kids are pretty fucking stupid if you ask me. U was born in 98. About the times everything was evolving. Seen a phonebook once and knew what it was. And you dont need to use one to have one. Everyone gets one for FREE in the US
“Everybody has a phone book” not anymore friend, not anymore.
2009 people- in going to try and rip a phone book in half! 2020 people I'm going to hide underground from the coronavirus.
0:55 "because everybody's got a phonebook"!😂😂😂😂😂😂 LOOOOL!!! If only she'd known.....
Nowadays many people don't even own a dictionary.
What a sad generation you are kid... 😪
before your beloved smartphone exist (and before *you* exist) almost everyone who owns a home line has that _thick yellow book_ which contains all phone numbers around the country. LOL
@@norakirayumi Shut up BOOMER
@@ATTJ7628 typical millennial. ad hominem all the time. 😪
@@norakirayumi BOOMER
“This is one of those really really cool myths that anybody can try, because everybody’s got a phone book!”
"Everybodys got a phone book", that didn't age well.
Funniest part was "everybody's got a phonebook". Like uh, what's a phonebook?
I remember watching this on TV and getting the phone book and a magazine. Myth indeed confirmed. Miss being a kid
Kari: "cause everyone has a phone book."
Modern child: "what's a phone book?"
You can tell it's old when she says everyone has a phone book. How did it go by so fast?
Quotes that didn’t age well:
“Everybody has phonebooks”
I always thought the job of the Mythbusters was the best one, because you could play with physics and do uncommon things.
And also blowing up stuff.
I tried this with 3 page flyers and it came apart pretty easily
Everybody's got a phone book
2020: What's a phone book?
RIP to my dear friend Jacques Littlefield. He was a great guy, with a sense of humor... almost like a child. (He was a member of the Episcopalian Christ Church and a good family friend). Thank you for letting me drive your tank!
Love Miko
rip
1:13 there's something so amusing about this quick clip
the lady's completely wrong at the end I think...friction is independent of surface area. The harder you pull on the phone books, the greater the pressure you're compressing the interlocked pages, thus increasing the friction.
The everybody's got a phonebook line killed me
Am I the only one to still get a phone book in the mail every year?
I’m here in 2023 like “damn, I forgot phone books were a thing”
It would be interesting to try this with a jet of air forced with a manifold into the side of the book to try to create an air bearing separation between the pages. Or if allowed to cut a hole near the spine, air injected there into a conical hole.
0:58 “because everybody has a phone book”
It’s 2023, and I don’t think I have physically seen a phone book in nearly 10 years
I still have them
*My local grocery stores still have them along nearly every petrol* (gas) *stations near my house*
Can skip a 6 second ad but not a 30 second one
Abdu Salam get RUclips red
#HowDoYou KFC or adblock
It is just a friction thing. The pages are pressed together, so a vacuum can't form as there is no space for an absence of air. When you have hundreds upon hundreds of pages not only pressing together but also pinched together, you have a great amount of force to overcome.
:o 14 years ago
"What's a phone book?" HAHAHA. SO. FUNNY. Let's repeat this 30457 times as well because WOW, the HILARITY. My sides hurt!
...
FYI, separating these two books will require 10^83 newtons of force. The gravity pull between the sun and the earth is 10^22 N.
Myth: sandwiches are better with the edges cut off
Status: crusted
“Because everybody has a phone book” dang that aged
Fun fact: this was the very first video that i ever saw from MB. i was about 9 or 10 and this video that got me into MB, testing this myself at home with my dad, and my love for testing stuff with science :)
Felling good by watching this after 13yrs on 28 Feb 2023
I remember this being the episode of MythBusters that made me super interested in the show like of all the things to be proven true this is just wild
"any body can try because everyone has a phone book"
And like 5 years later no one does lol
I’m surprised nobody thought to vibrate it while gently pulling. I think that could have worked
I remember watching this episode as a kid and it has stuck with me after all these years.
“Everybody got a phonebook”
Didn’t age well
This is how friction works on building piling . Imagine a 100 story building build on sand , using nothing but friction , similar to this
i once took two notebooks and interlocked them and then pissed off my aid when she couldn't pull them apart
It's spelled aide
2023: phonebooks are basically unknown. Have to make a special request just to get a paper copy of a company phone directory, lol!
Jeez I remember I was 9 years old watching this live as the new episode of myth busters
One of their best episode's
How long ago was it??
How long ago was it??
Phone books are kinda weird, looking at it from a modern security perspective. A company revealing to the public their clients' names, addresses and phone numbers.
I remember watching this growing up and then in high school I would take my friends textbooks and/or notebooks and layer them together one by one. They think nothing of it till the try to pull their stuff apart lol
"That is easy to try because everybody's got a phonebook" im pretty sure those aint even for sale in the avarage store
why not find out? Just use something you got lying around... A hoist winch, some heavy duty clamps, a mounted hook, you know, household stuff.
Spikey Pie you seriously don't have tow hooks or c clamps?
Holy crap, I get it! Each page is rubbing against 2 other pages, meaning that each individual page is generating a relatively large amount of friction, then multiply that by the huge number of pages and it's not going anywhere
1:40 im dying🤣😂😂🤣🤣
They didn't try the air compressor. Blowing air between the pages reduces friction, allowing the pages to be pulled apart much easier.
i didn't know that paper could take that much force, cool!
!!
This design should be used in engineering if it isn’t already….
I go to the comments to note the "everyone has a phone book", realize it's every comment. That's an L
"Everyone has a phone book" this has not aged well
exactly what i was going to say
How the fuck does this video from 8 years ago have so many ads on it when most videos now get demonitised straight away?
I assume it’s because of how old the video is, and the fact that it is MythBusters.
"everybody's got a phonebook"
🤣🤣🤣😂😂😂 yeah maybe 10-20 years ago
Tory and Kari at 1:16 is hilarious!
Start at 1:17 and close your eyes
XD
Haha at school we put the dictionary's and other books together like this so the teacher has to spend hours uncoupling them 😂😂
That's a real shame. You should be paying attention to your teacher instead. Who knows? You just might learn something, like the difference between plural and possessive.
Everybody's got a phonebook
Not really true anymore 😂
The books have a friction coefficient that’s greater than 1 meaning any force you put upon will be redirected in the opposite direction at least to the same magnitude you pulled. Velcro has a friction coefficient of 6 meaning that it’s impossible to pull Velcro’s apart when sliding the two surfaces against each other.
That's not quite how friction works. The friction coefficient tells you how much of the normal force or the force pushing the object against another surface (most of the time gravity) gets translated into a resistive force if you try to slide it. A block of wood with a coefficient of friction of 1 between it and the ground "pushes back" with a force equal to it's weight if you're just pushing it across the ground.
Also, the coefficient of friction is always between 2 surfaces. There's no coefficient of friction for just Velcro, but there is for Velcro on Velcro.
I don't even have a phone from the local Phone Company and they still send me a phone book every year.
And the Yellow Pages are 3 times as thick as the White Pages.
Is that dude implying he weighs 250 pounds? Lmao
Pretty sure he's a few inches over 6 foot so it's not that unreasonable
"because everybody's gotta phone book"
That aged poorly lmao.
I was just about to say that haha, from which year is this episode?
2017 11 year olds probably don’t even know what a phone book is
Lonely Nights ikr
I’m 12 I know what they are my parents are 59 and 52 so yeah I know
A book that can make phone calls?
Just kidding our family used ya have one of these, have a nice day
Ya my son said its a book with all the new cell phones
My grandma had one until I was 6 or 7
what if you pull it out vertically instead of horizontally
Probably same result
piplup2009 When he was hanging from it, that was sort of vertical pulling.
Dat Senpai he meant sliding ng the phone books opposite directions vertically instead of away from each other
KeshKoKid exactly: you'd had to SLIDE those pages across each others length. This whole myth is about friction. So same result.
My efforts would be
1) Gasoline and match. Weakness 🔥
2) Water. Weakness💧
That's the kind of myth you can't try at home. NOBODY has a phone book
Only *your* generation kid. Not the people who watched this back during the days before your beloved smartphone exist. LoL
she lost me at "everybody has a phonebook"
"everybody has a phone book"
*what year is this*
Oakley Schofield 2009
I’m watching this in 2018 and laughing when she says everyone has a phone book
The more surface area you have if your pulling something, the more friction you have. it's not that kinky really
I'm glad he's okay, but the sound of Tory hitting his head was hilarious.
Because every one has a phone book?
This was back when people were smarter and less reliant on technology. You know, back when people knew how to spell 'everyone'.
Know Whey haha
Know Whey
We're not inept, we can use phone books, they're just old and useless now.
Personally did this it was ridiculous how few pages were needed to make it impossible
They werent allowed to open it?
SuperReachfreak
Well, it's the only obvious way to open the book without ripping them apart
Yeah, but there's an inherent problem with that. By having the pages kept shut, this effectively applies a force perpendicular to the pages' plane; this actually *increases* friction (as would be the case with two objects with the same μ but different weights when placed on level ground).
"Everyone has a phone book." Cut years later and kids don't even know what phone books are
Lol did iballisticsquid send anyone else here! He did for me XX
Yes xD :)
Hahhaha same here
yep xD
Me
YES
2024 and this show still Bussin
Oh, that last comment hurt me. Surface area doesn't have any relationship to friction.
TwT Shadow No, surface are has no part in friction. The equation for friction is Force*Friction Coefficient=Frictional Force. No where in that equation is surface area.
@CLANG CLANG CLANG CLANG Surface area is not related to friction, this isn't something I'm not confident in. When you calculate frictional forces, there's no component *anywhere* for the surface area.
What's happening here is interesting, and due to higher frictional forces, but those stronger forces are not caused by surface area increases.
@CLANG CLANG CLANG CLANG In fact, just because of how belittling your comment was, I want to elaborate more.
I'm a senior studying Aerospace Engineering, nearing graduation. In my *freshman* level course (which I received an A in, as well as the follow-up Physics class as well as a statics class, all of which covered the topic) we proved this during a very simple experiment.
We took boards, laid them flat and on their sides, and compared the force needed to pull each of them. Guess what? *It was the same!* Because surface area *doesn't affect friction!*
And the funniest thing about this? A concept so simple that it's an introductory topic for college courses can still have people who feel so certain that they can act like idiots by acting pompous and proving how little they know.
I believe u, but maybe u can put it in more real world terms. I've heard this before I think...that a refrigerator is just as hard to slide standing upright as it is if u tilt it up on one corner. But I don't really understand why this is
@@Paolo-uq3fc If you tilt it a refrigerator like that, unless the ground was soft enough where the ground might deform (think sand or mud) it would be the same frictional forces on the ground.
There isn't really way for me to break it down more though- the area a surface touches another surface doesn't impact the amount of friction. I would need to have a reason why friction occurs to begin with, and I don't know that that exists rn (it's possible that's a thing in higher level classes).
Imagine though that you have a thoroughly distributed mass in a pencil. When it's laying on it's side, it has a lot of area on the ground. At the same time, the weight is totally distributed over that area so there isn't that much weighed just a section. Now compare that to a pencil balancing on its point. Sure, the area is incredibly small, but the weight in that small area is sooooo much higher. So as you spread out this force over an area, you kinda weaken its impact in small areas. (This perhaps would make more sense know force divided by area is pressure, so as area increases pressure decreases.)
A bit of maths nobody will care about:
Assuming a coefficient of friction of 0.25 for two pieces of paper on top of one another, one book having 1000 pages and an average force of 20 kgs pressing the individual pages together (because of rigidity of the whole thing, imagine pulling the middle two pages apart from one another) you get a critical frictional force of about 40000 newtons, which means that the books would be able to hold about 4 tons.
I remember watching this episode and spending all day tearing up phone books