1,000 Birds In A Truck Riddle
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- Опубліковано 7 кві 2019
- Observation is the core of our understanding of science and applied math. But what happens when what we see isn’t what we actually get? Or when we can’t see at all?
Exploring unseen physics gets to the heart of a host of riddles, paradoxes, and millennia of scientific advancements. Conquering what we can’t see takes pioneers, like the Aboriginals in Australia who harnessed invisible aerodynamic forces to make boomerangs… or Chinese inventors and engineers who experimented successfully with man-carrying kites as early as the 6th century AD.
As Einstein told German chemist HF Marks, “You make experiments and I make theories. Do you know the difference? A theory is something that nobody believes except the person who made it, while an experiment is something that everybody believes except the person who made it.”
** SOURCES **
“From Alchemy to Quarks,” by Sheldon Glashow www.amazon.com/Alchemy-Quarks...
"Two Hundred Pigeons," in Martin Gardner's The Colossal Book of Short Puzzles and Problems
www.amazon.com/Colossal-Book-...
** LINKS **
Vsauce2 Links
Twitter: / vsaucetwo
Facebook: / vsaucetwo
Hosted and Produced by Kevin Lieber
Instagram: / kevlieber
Twitter: / kevinlieber
Podcast: / thecreateunknown
Research And Writing by Matthew Tabor
/ matthewktabor
Editing by Aspect Science
/ @tommocarroll
Huge Thanks To Paula Lieber
www.etsy.com/shop/Craftality
Get Vsauce's favorite science and math toys delivered to your door!
www.curiositybox.com/
Select Music By Jake Chudnow: / jakechudnow
#education #vsauce2
An Angry Birds Sponsor? When did I time travel back a few years?
Didnt angry birds spionage on their users by exploiting some backdoors in both OS? iOS and Android.
I mean for the NSA or FBI
I'm honestly disappointed with the sponsor, and who the hell cares about Angry Birds anymore? It's just a cheap cash grab for Vsauce and a desperate move by Angry Birds.
@@somedude4487 They're supporting the creation of fantastic content. What's wrong with that?
@@somedude4487 someones angry
When any of the Vsauce channels upload, it’s a global event...
facts
Falsn't
first
For me that is too true
Yup
Missed opportunity. Should have named the space ship Vsaucer
thank you evan krause very cool
thank you evan krause very cool
thank you evan krause very cool
thank you evan krouse very cool
thank you evan krause very cool
When you casually go from talking about Angry Birds, a game aimed at 8 year olds, to talking about relativity and time dilation within a video of 10 minutes
Aimed? Hah i get it. Pun not intended?
Vsauce formula
that escalated quick huh?
That is how Vsauces do.
welcome to Vsause, I swear they give this dudes a starting point and let them wonder
Did you wait 6 years for the sponsor
I think it just took him six years to make the video.
Kevin is a time traveler, obviously
Nisse 0906 Kevin only waited 3 years, but it was 6 years for us
@@rugvedkulkarni1593 Maybe he spent that six years in space actually being Bevin, but having found a way to come back to earth earlier
😂😂😂😂 #QuantumMindLoop 👌
Thanks #ParallelUniverse C3RN 🔄
Isn’t Angry Birds 2 about 5 years old?
Can't believe they're back!
Lol yea but its really good
There is a angry birds 2 movie coming out :/
SirHellHound oh my 😂
I feel like it's 2014 again
1:35 “Why didn’t his plan work?”
Maybe because the bridge is made of straws
It iS JuSt A MOdEl DuRrrRR
He should have been more of a furry... The Big Bad Wolf can blow the straws down...
And a toy truck
yeah, right??? real bridges are made of *large* straws, duh
Or maybe the thousands of imaginary birds didn't fly in the truck
*START*
Kevin: Let’s talk about this riddle
*END*
Kevin:
INTER-DIMENSIONAL EVIL TWINS!
do u have time to talk about our lord and saviour jesus christ amen
@@user-qm5qi4yi1r σκασε ρε μαλακα
Jimco 505 Μη μιλάς έτσι θα βάλω τα κλάματα
@@user-qm5qi4yi1r *no*
@@ViratKohli-jj3wj ତୁମେ କାହିଁକି ନା କହିଲ?
Your the evil twin kevin!
You’re*
I can't believe how fast you were
Man, he travelled at light speed!
He’s so evil he used the wrong form of you’re
Not sure what to say here because everything I was going to say was already said.
I just love the way he explained “Angry Birds”
No
Yes
Or is it?
No
I love it too
Gandalf, driving the bird-filled truck:
*_FLY, YOU FOOLS!_*
Fly you fowls
@@matthewlong2347 dude, that's so much better, i can't believe i missed that
You mean fly and nose dive. Or don't be in a truck. Or make the truck 2 stories tall with trip floor boards at the top and when the truck drives over the bridge floor boards fall so the people on the truck free fall to be weightless and land when the truck is over the bridge.
sunnycactusdesert Didn’t YOU mean to say is r/woosh
@@matthewlong2347 r/yourjokebutbetter.
"Not like last year new, but like 50000 ago new" - Kevin 2019
"when was angry birds popular", trabek
He said this exactly as I was reading ur comment
@@mikhailshahid3807 same lmaoo
@@mikhailshahid3807 WOW what a coincidence?!?!?
Kevin unironically gives the tools to find the airspeed velocity of an unladen swallow
@@DaFeanor20 ..... is that with or with out a coconut
@@DaFeanor20Well how am I supposed to know that?
Watching in fascination as you guys play with a 44 year old joke...
@@DaFeanor20 I don't know tha- AHHHHHHHH!
@@yardbirds89 well, its unladen so... without.
*Air is really water, and we are really hamburgers.*
Anything can be a hamburger if you try hard enough
@@SirPhysics Finally! Now I can make my toes hamburger and eat it
And hamburgers is just fancy dirt.
Fluids and liquids are different terms bud.
l Vintage Sitcoms l r/wooooosh
But what if YOU are the hamburger?!?!?
- Vsauce2 Kevin 2019
I am the robot
-My life as a teenage robot, XJ-9, 2003
America's logo from civ 6?
@@user-uq6uj7fn3h civ 5
Oh.
Don't tell any one but I'm 9 and my dad made this account
The scenario with the birds in the truck is easy to conceptualize. Imagine the same truck but instead of birds it carried tanks of fish. Thinking that when the birds fly it makes the truck lighter is like thinking when the fish swim to the top of their aquarium it makes the tank lighter. It's the same thing but we tend to not think of air as being a thing trucks carry
"I use it... to look nice" - Kevin slaying Paris fashion week
Thank you Kevin for keeping Vsauce alive!
7:18 something I never thought Kevin would say.
You missed the chance to call your evil twin KEVIL, it would have been perfect
I love how he literally just had a spasm and died at the end. I also find that the only effective way to exit a conversation.
Spoilers
Vsauce asked where his fingers were cuz physics were hiding them
Thomas Turner hahaha mate very funny lmfao how could you come up with that, it’s very funny hahahahahhahahhahahhaha lmfao
It all makes sense now
"Why didn't his plan work?"
Because the Angry Birds can't fly.
Bridge keeper:
What’s the airspeed velocity of an unladen swallow?
Vsauce: 3d(V^2)S
Noah African or European
Any I guess
What I don’t know that...
Highly underrated comment
if anyone wants to know, check Jake's what if you were hit with a shoryuken
he references it at one point.
I’ll keep this in mind if I ever drive over an old, dangerous bridge with 1,000 birds.
I love Vsauce!
Ofc another Ravenclaw hangs around here :)
Ravenclaw Rules!
Not even close
lets say one bird is 5 kg. You can not save more than 5 tons (if we assume that flying birds does not weitgh. which is wrong). A light trailer truck and a small empty vagon weights around 20 tons. so 5 tons can make difference so I dunno
You look very nice in your Metallized Polyethylene Terephthalate blanket :)
Suani Avila // He was referring to 7:56 .
Suani Avila // I see
NOBODY ASKED
PET (Polyethylene Terephthalate) is what plastic soda bottles are made of.
WHAT IF THR BOTTOM OF THE TRUCK IS MESH METAL AND AIR COULD PASS THRU :0000
GnasheR but that would be expensive and inefficient for the truck driver because it is only for this one scenario
Then the same force will apply to the bridge directly, and bridge will break. No matter what you do, the total weight is the same
@@StRanGerManY that assumes that the force downwards follows a perfect downwards vector, which if you've seen a helicopter fly over your head, you know can't be true. I had the almost the same thought envisioning the walls and roof made of grating as well.
@@NickMarcha there is a great disturbance under the helicopter, you can barely stand where it's landing. And as the video pointed out, it is in the open air, the pressure is being dissipated and distributed over a big area.
In the truck, there are walls and roof which holds the pressure. If you, however, remove the walls and the roof, then sure - flying birds will reduce the total weight
@@StRanGerManY yeah the disturbance is high, where the helicopter is landing, but not when is flying past you overhead(at least there is enough clearance in my city). In the grated for scenario, the pressure would still dissipate, from the height of the truck bed, to the road(which tends to be reasonably high). So it should have some effect on the weight, Which is what original commenter was getting at. Although I wonder if there would be a significant effect from vacuum created by the birds pushing air down with roof and walls intact.
Kevin: talks about physics of birds n' stuff
3 minutes in: *LETS HOP ONTO THE START OF THE HUMAN HISTORY... like every VSauce does*
8:25
Kevin: "Count the lines."
Me: "Sure. Zero... I can clearly see the endpoints of those segments."
math teacher jokes detected
@@lucasbortoluzzi9369 I wonder if I became a teacher because I was so nitpicking, or if I became nitpicking when I became a teacher...
But what if they're not segments, but actually ellipses with a horizontal length of zero?
@@Sollace Those have horizontal length, though, albeit small.
@@everdale8920 why can't it be both at the same time?
Thanks for the replay of the bridge collapsing
Nobody can see time
Doctor Strange: Am I a joke to you
He didn't see time
He saw something that was out of time
Wyatt Billings Not a joke, more like a nerd.
Wyatt Billings Embrace it, bro.
HAHAHAHHAAHAA
DURRR, DA MEME.
I LIEK DAT MAYMAY HURRRDURRRHURR
¯\_(ツ)_/¯
1:30
Prediction: the downward force of the birds flapping their wings provides a similar amount of downward force in the enclosed space that they would at rest.
That’s what I thought too 😮
You see, this would’ve worked if we used African sparrows instead of European
*swallows
Not for sure, this is a Monty python reference right?
Riley M yes the holy grail
*swallows
But. Does the average airspeed matter in this case?
8:00
“but i use it to look nice” XD the way he said that and the look on his face made me laugh so hard
That overwhelming feeling you get when you don’t know which of the Vsauce videos you want to watch because there’s thirty super interesting titles recommended to pick from so you pick one and figure you can just go back but now there’s thirty new super interesting titles recommended....
I would assume that the energy from the wings of the birds would be disipated into turbulent eddies, unlike while they are at rest. This needs to be tested
what if the truck had a wire cage? would it be able to pass the bridge?
Only if the ground was a grid pattern, too. The air is pushing downwards.
My guess would be, that the wires wouldn't hold the birds inside (bust) or they could not fly at all because of weird pressure/airflow - but I am curious, too.
If the truck had ample ventilation(which a truck carrying live cargo definitely would), then the fluid would flow out of it with the added air pressure of flapping wings. Maybe the trucker did not think the problem through but VSAUCE definitely did not. That's the problem with theoretical physics. There are often variables that a theory does not account for.
it may actually be worse, as the birds would pull more air from above and thus generate more thrust on the truck's bed.
I don’t think so. Even if the ground of the truck was wire, the force of air would still have to end up somewhere- aka, the bridge below the truck. It may fare a bit better since the force would be more spread out rather than instilled via low surface area wheels, but the birds still have weight that they are forcing onto the air.
Imagine putting "burning a burger" on your To-Do list for a video idea...
Daniel Janort making evil twin Bevin is common content though
and how much time did he spend making that bridge of straws?
"Kevin what are you doing?"
*BURNING BURGERS FOR VIEWS*
1:18 top ten pictures taken moments before dissaster
YEES, the only VSauce that uploads consistently! Plus D!NG of course
Jake's videos are still really high quality though
What's Dong? I think you mean D!ng.
@@JustPoptarts_ I must have mispelled it! The name's ALWAYS been D!NG!
@@Danilego exactly
4:16 'I can't see time'
Slowly the insanity of Micheal is lashing out at the other V-sauce hosts.
Jake is the last 'sane' person.
XD
Oof
Once upon a time I was walking along a sidewalk. A goose decided it was time to leave, and I was along his flight trajectory.
I can absolutely attest that there is a massive downward force as a goose takes off and barely misses your head.
Kevin you BAFOON! The bridge broke because it was made out of plastic straws
It's just good common sense, toothpicks are the superior small scale bridge building material. :)
Better feed it to the turtles now, its their favorite snack after all
Kevin is really growing on me more and more. This was thoroughly entertaining and informative too
So basically my eyes are useless. Vsauce always opening my MIND to new truths.
Why make it super complicated. The birds wings flapping pushes the air down which pushs the weight of the birds onto the floor of the truck
Simple
Proxide cause Vsauce
Because he had to make the vid longer than 10 min for more ad revenue
Because Bevin
What if all the birds were to glide simultaneously?
@@MsUnderattack wouldn't the air column below the bird still push on the truck with its full weight?
If they were simultaneously in free fall thats a different case
Why if I told you, you could just go back and use an alternate route for a safer attempt
6:22 That might be the besy YET I've heard in a while
"I CAN'T SEE TIME"
0:29 Why didn't he say RIGHT? and then WRONG!.
Cuz, I was hoping he would say that word!
7:19
Friend : Who are you?
Me : Hamburger
Vsauce: “Why didn’t his plan work?”
Me: “umm... because the bridge is made out of straws?”
it's because his truck is sealed shut...which would make it difficult for said birds to breath...thus the solution seems a bit silly...
Kevin: *does math stuff*
Also Kevin: "Ok, look. Calculations aside"
_Not gonna lie they had us in the first half_
You got it backwards
It's "They has us in the first half, not gonna lie."
now every time I drive a truck full of a thousand birds I always remember to leave the sides open! thanks!
“When it comes to birds in a truck, evil twins travelling the cosmos or cooking burgers”
Honestly sounds like this would be an amazing animated show
next sponsorship would be with tom the cat
*talking tom
4:17 Somebody GIF that!
The outtakes at the end make everything even better!
The exit music fills me with longing and hope and sadness. Which makes it all the more funny that you are saying such silly things during it.
4:24 "I can't see time.... nobody can" Unless you take enough acid
What if the back of the truck was made of bars instead of walls? Air would continue to flow through the back so it wouldn't be a closed system anymore.
Exactly, and even better make the floor of the truck grated.
with all those birds you would need air circulating anyways because otherwise the birds would not have oxygen....
The wind the flying birds push down would go directly to the bridge and so the weight of the truck plus the wind from the birds would still be to much.
Instead of the birds sitting in the racking, hang them from the ceiling. That’ll reduce the weight of the birds completely.
TaxEvasion obviously
He went from pushing a truck over a bridge to talking about a lot of gibberish to me and then back to making a toy bird fly
Read the description of Mind Blow #66 back in 2013. It says to watch his new video unseen physics. That explains the superannuated sponsor
Wassaketchup 101 that’s insane
Factx learnt:
Our eyes aren't (very) good at thermodynamics.
The mass of angry birds is relevant (or is it? /2019)
Cool, love your delivery and sense of humor.
Kevin:I will draw two STRAIGHT lines
The line:wiggle wiggle wiggle wiggle wiggle
8:01 i cant 😂😂
There's a broken bridge you have to cross?
Simple, just get a bunch of birds in a truck!
*_Modern problems require modern solutions_*
_fails_
Truck driver: ok first of all, the -youtube- physics algorithm
Beginning of the video: this is scientific angry birds
End of the video: what if YOU’RE the hamburger?!
The bloopers are always great.
What's the first word in the title? I can't _see_ it
Physics?
@@Max-bz8ev oh right how could I have unseen it
Newby Ton its “unseen” in a small font
@@Nate-bd8fg r/woooosh
@@benisaac5549 beat me to it
"When it comes to birds in a truck, evil twins travelling the cosmos or cooking hamburgers."
If I overheard this with no context I would immediately assume you were not okay.
The amount of work that goes into making these videos... plus the comedy
i love how Bevin is just skeletor with a picture of you with a big ol mustache
We can't really see spatial dimensions either. We can just see the stuff that occupies it.
We can't see time, but we can see the entropy it creates.
I do love and appreciate the daredevil background music
It's not Daredevil music, it's just Vsauce 2 music.
@@_kiwi_247 Listen from 1:39 to 2:18 carefully. think you got an ear infection.
@@AzmolHossain01188a No, I do not. It's not the Daredevil theme music. It has a similar pace but it's definitely not the Daredevil music.
Key catchphrases:
Wrong.
No!
Yet...
It went from a truck hostaging birdies to overcooking a burger, lol
6:18 o so maybe that's why vsause has been taking years to upload maybe he is making a super faster than the speed of light thingy
Thanks Vsauce2, Very cool!
“But what if you’re the burger and you want to stay uncooked?”
-Keven 2019
Kevin's outros are so beautifully and hilariously imorovised
All I Got was Don't burn the Burgers 🍔
01:36 "Why didn't his plan work" - Simple, you used bendy straws... should have used non bendable straws :-)
7:12
*bites into Mettbrötchen*
*laughs in German*
Mettbrötchen = raw pork on a bread roll
0:53 Due to the principal of conservation of momentum the weight remains the same and internal forces don't affect the change in momentum of the body. However if the birds are tethered to the roof they generate lift from the air and that may help
Lmao they did this on Mythbusters.
Biggest Nerd ever. I LOVE IT
Rip. Anthony Fantano
We went from birds in a truck, to Kevin's evil twin and then to cooking food. 10/10 video
That bird riddle forced me to learn way too much.
4:44. I heard “You ATE your evil identical twin 😳😵
I have something to admit..
I CAN’T SEE TIME!
:(
Felt smart for a second when I predicted the use of that time dilation example to explain. Thank you Advanced Algebra 2 teacher from 20 years ago!
Mate you just turned angry birds into a physics exam for me
Yes, yes, yes... This is all well and good. But can a European swallow carry a coconut? *That* is the question we all want answered. ;-)
It could grip it by the husk!
Bruh, If all the birds decided to fly to the top and free fall during the crossing, it would reduce the weight.
Nope. They would be pushing air as they fall, and this force would add weight to the truck.
Not as much though - if the birds could dive bomb perfectly there will be zero force, but instead will be small if they keep themselves aerodynamic which the reduction may be enough to cross.
@@praneel5575 The force created from that drag would be less than the weight force of the birds. If they all are accelerating downwards, the truck has less weight than if the birds were stationary.
Kevin I love your content, don't let anybody bring ya down
"We can get food poisoning because our eyes aren't very good at thermodynamics." Idk why I laughed so hard at that.