Yawning: Contagious or Not? - Mythbusters - Science Documentary
ฝัง
- เผยแพร่เมื่อ 10 ก.พ. 2025
- Mythbusters - S02 E15
In this thrilling MythBusters episode, Adam and Jamie explore if toy cars can outpace real ones, investigate yawning contagion, and test the explosive potential of porta potties. Plus, they solve the age-old mystery: does toast always land butter side down?
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Join the MythBusters in their thrilling quest to debunk myths, challenge urban legends, and test movie scenes in this action-packed TV series! With hosts Adam Savage and Jamie Hyneman leading the charge, buckle up for a wild ride as they employ rigorous scientific methods, high-octane experiments, and jaw-dropping explosions to uncover the truth. From epic car stunts to mind-blowing special effects, witness the power of scientific inquiry as myths are either confirmed or shattered. Get ready for an adrenaline-fueled adventure filled with excitement, humor, and the ultimate quest for knowledge. Tune in now and unlock the secrets behind the myths!
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Honestly, yawned at least 15 times while watching the yawn experiment part.
Oh yes
😂
I yawned immediately after reading your comment
Well I watched the whole episode without yawning so there's that
@@eenayeah Good, you are healthy. Fantastic.
The toast machines have a very Wallace and Gromit feel, don't they?
"Lad, I've been sent a letter from my cousin out in America, and it just says 'Quack, damn you'"
"My toast always lands butter-side up!" - Kari.
One of the best quotes of the show.
47:02
… why?
This is one of those dorky barely filtered quotes that made the early seasons really fun.
Yes:)
24:24
"And I bet the audience at home, right now, is probably yawning."
I was yawning too many times to count!
The chance of your toast falling butter side down is directly proportional to the cost of the carpet.
Toast dropping depends mainly on height of the table. Because people tend to have their butter side up, it's mostly about the time the bread is rotating in mid-air. Normal table height gives butter down as shown by Adams rig.
the avg table and counter top is set to 32 inchs tho so i wold be same height anywhere other than a bar or coffee table\
yeah, with double the height they should land mostly butter up
The whole brick car bit, here like 20 years later, is still one of my favourite bits. Especially Jamie's face when he says "It'll kill him"
I play this just for audio while working, and just talking about the topic of yawning was enough to set me off like crazy
Machine: What's my purpose in life?
Adam: You drop toast.
Machine: ... Oh my God...
I only had to read the title and I started yawning, I'm even yawning typing this as I keep seeing the word yawn.
I can't stop yawning while watching this..
3:42 What is that car?! That thing is gorgeous!!
10:00 Adam Savage invents the Cybertruck
Beautiful username!
Just hearing them talking about yawning was setting me off, its definitely true. I've experimented with this many times using all kinds of people as guinea pigs from work colleagues to random people on buses, trains, waiting rooms, even at the pub. There's definitely something to it.
0:43 quack damn you!
It's ridiculous how many times I yawned during this episode.
IVE YAWNED 3 TIMES in the first 2 mins of the yawning segment
The toast on deck song is so funny hahaha. Adding a few GarageBand loops XD
I had this on and wasn’t paying attention, it was on auto-play and I started yawning. As I’m thinking, “Why am I yawning so much?” I notice what this myth is about.
47:02 favorite part of the video.
45:33
🗣🔥TOAST ON DECK🍞
🎶🎶🎶
🗣🔥BOMBS AWAY💣
🎶🎶🎶
🗣🔥TOAST ON DECK🍞
🎶🎶🎶
🗣🔥BOMBS AWAY💣
Wished that remix would have lasted a bit longer
The speed of that viper was an absolute joke, guy didn't even break 30 miles an hour
Thanks for uploading all these videos it’s been great. many thanks 🙏
Fr, it's a blast watching these episodes before sleeping
My jaw hurts from yawning so much, even reading or hearing the word makes me yawn
I started yawning in the intro where they show what will be in this episode. Myth confirmed.
I yawned so much watching this one. Great episode!
Jamie's car looks like a Cybertruck lol. Must needs to be paying him royalties.
24:23 Jamie is right, but it's also 7 am for me and I haven't gone to sleep yet
They got Jamie to dress up for this one! I cant believe it!
He even did an accent!! How did they get him to agree to this? 😅
That was his outfit back in the 1860s when he was Lincoln's Minister to Wurttemberg.
31:40 even the squirrel just above Kari's left shoulder seems to agree
I still see two potential problems with the toast dropping tests: They shouldn't have done the large hight test outside where wind can affect the dropping toast slices. The other thing is that they just put some small amount of butter onto warm slices. So the butter melts, becomes (partly) one with the toast and that reduces any sort of preference on falling onto the heavier side.
Apart from that I've read somewhere that if a buttered or marmelade-d piece of toast lands on the the potentially heavier side or not should be a matter of the hight of the kitchen table for example. That means that it's just unfortunate that our kitchen tables have the hight where falling toast hits the buttered side.
This was the first episode I ever watched.
I yawned so many times watching this I lost count 😂
5:02 yoooo it's my favorite car Mazda Rx-7 FD Spirit R edition. The rotary beast!
This animation is wild! 12:27
Yep i was yawning during the whole thing, but of course i (we) knew what the experiment was, so that might influence it.
Am I the only one who was reminded of the "dunkan-principal" watching the yawning experiment?
the toast myth is actualy one off murphys law. that says:
the posability for toast to land with marmalade side down. is direct propotional with how expencive the carpet is . !!!
never do a building water shut down on a friday either
@@iiiuuj sorry but what do you mean by that?
I yawned twice just by reading the caption!!
The toast myth is so funny
I yawned right away. OMG haha.
My dog and I take turns making each other yawn. Hahahaha
You’re telling me they don’t just tell the myths?
from what i've heard they actually put them to the test!!
@@alwayslucky664 But what gives them the requirement to do it? Do they have some knowledge or experience for this kind of shenanigans?
What differentiates a scientist from a regular person? the curiosity and ability to conduct experiments to draw logical conclusions. all of which the 5 hosts have plenty of.
@@gravity00x Savage even himself joked about this.
@@gravity00xReminds of "the only difference between science and screwing around is writing it down."
I'd like to see a hero that doesn't yawn when on multiple night shifts in a row at 3:40 in the morning.
testing yawning myth... its interactive....
Nothing beats the end music
Also. How often does toast fall from the table "without human interference"?
I had a cat who would knock food off of tables. Very clever cat. He once opened a Timbit box. Either I underestimate the dexterity of cats. Or he was just super determined to steal snacks
Shouldn't be watching this while I'm hungry 😭
Not only is yawning contagious but my dog catches yawns too.
There's no doubt in my mind that yawning is contagious. I cannot watch another person yawn without starting to yawn myself, even when trying my very best to stop it from happening.
Even reading the word 'yawn' can sometimes cause me to yawn, which is quite funny to me.
24:20 believe it or not I’m yawn too at this moment
Lake Tahoe...Southwest US...hah!!!. As for that toy track, should have set it up mid day and done the trials late afternoon/early evening when the track could contract
Is it even legal to deceive people into being test subjects for an experiment and then spy on them? 🤣
Yes it is
I believe that so long as there’s no possibility of it causing harm it’s legal
Yawning is mostly contagious if you see someone do it not just simply being in the same space...
I dont know why but there is something so funny about jamie wearing red sneakers.
It really bugs me they couldn't set some sort of catching bin for the toast, so much food wasted!
Kari: "Mine's the prettiest"
Kari's car: *looks like white poo*
Tesla' should buy Savage's design for their Cybertruck 2.0 as it looks very proper.
Adam’s car is so cute
NEVER turn the wheels (via the engine) while a car is jacked. There’s a force called P-force that occurs with a rotating mass; the bigger the mass, the faster it moves, the more p-force and it “pushes” at a right angle, and perpendicular, to the spin. It’ll “twist” a car off of jacks.
Yes, the myth busters were using a forklift, with a large lifting base and putting forward force, into the wall, providing friction to keep it from turning. My comment is directed towards people who lift a vehicle, then push the throttle down.
Not so much anymore. They set a toy car track of 1,077.55m in 2023. In Japan of course.
It’s nice to hear that the Pocket Circuit Fighter has set himself a world record. I’m proud of him
They didn't run a car down the full length so in my opinion it doesn't count.
if they bought a bunch of plastic plumbing pipes and ran the hotwheels track thru it it would be so damn strait
"I reject your reality and substitute my own"
Media at best
Jamie was right - I WAS yawning, right through that whole bit.
Nobody yawns when I yawn, I guess i'm too ugly
Most bad ass viper owner ever.
I'm gonna eat some toast to mark the occasion. Who's with me?
naw man I'm yawning because is near midnight and I have been binge watching the series
You must find Mythbusters really boring! 😋
32:32 - not exactly a rip-roaring reset is it lol
every single time my toast falls to the floor. i have the toast on a plate with marmalade on top. always with the marmalade on top off the toast on top off a plate
2:26 The North American term is "gearhead." The British term is "petrolhead." Going with "gashead" is a perfect illustration of why trying to please everyone ends up pleasing no one.
i mean you already said it: sometimes, different regions in this world have different names for the same thing. I dont get your point here.. why is it bad, that they used a different name?
So classic episode...great one.
So what?
Kicking food... ay caramba...
if u put a super conducting magnet into the toy car, it can go warp speed and beat the race car😂
mental note, never work with children...
Go ahead with myth burster junior :))))
Mythbusters Jr was much better than the "reboot" the search or whatever that mess was.
how did they actually manage to get Jamie involved in the skit with a costume this time? Maybe he really is from that era.
I reject Adam's reality! lol
Didn't know that their was a time that another girl was a cast for some experimentation
Scotty who, what's her name?
scottie chapman
She was part of the show in the background until season 2 when the build team started getting myths, left part way through season 3 and Grant joined a few episodes later.
There are also episodes where Kari was replaced (due to her pregnancy) by another woman: Jessie Combs. She is no longer among us, though :(
Scottie was a goddess! I always thought she was lovelier than Kari (who has not been beaten by the ugly stick herself, I should add!) but seeing these old episodes again, I am reminded of how stunning she was.
2:32 TORI WTF
Some times i see my cat yawing and start too
SCOTTIE
maybe the way toast falls most often is holding it with 2 fingers en loosing grip....??anyone?
i yawn a lot watching this
is that scottie's car?
There is a problem with the toy car myth the track was not at all flat it had joints and bumps all over it and it also wasn't straight, for viper the tiny bumps would have neglible effect they should have built bumps to keep both the tracks equal
?maybe add dynamo on the toycar, or cdisable it on the real one?
yawning is only contagious if you believe it is
I like the dodge viper but couldn’t afford it ever gas is 2,10 euros per liter 😂
*Homer Simpson voice* hmmmmm, buttered toasts...
Ok so get this, about the yawning. So my co-worker at the time and i were on a trip for work, and he yawns and then i yawned. i hadnt all day til this point. We go back and forth yawning and he tells me to stop and explains the whole thing. i think in my head its bs so i turn my head when i feel a yawm coming on so he doesnt see it to see if he yawns. The music was on, it was quiet, he was focused on the road, i yawned and 6 seconds later i look over and he yawns.. COINCIDENCE, RIGHT? WROONG we get to the motel neither of us have yawned for a bit at this point but i feel one comkng so i go into the bathroom to get ready for bed and yawn (shower running no way he coulda heard it).. i poke my head out the bathroom and look at him, he goes "what?" AND THEN HE YAWNED RIGHT AFTER!!!! i could NOT believe my eyes. Idk how it works but it doesn. Our brsins somehow telepathically know when abother person is yawning.
Also after he said what and he yawned, yes he asked me if thats why i went into the bathroom and i said yes. We were both mind blown sitting at the end of our beds smoking a j in awe 😂
first time they really messed up a test,toast flips from fingers or slide from plate....none of these physics have been tested...the building drop was most stupid....
What you don’t enjoy your toast on top of a building?😹 I agree it’s outrageous they tested it like that. Really the best place to at least start is narrow down how people would typically drop their toast. Fall off a table. Fall out of your hand. Things like that. Because that’s realistically how toast gets on the floor. Not off a roof. I guess you can have toast on a balcony and it falls off the edge
You guys don't understand the point of the test. It wasn't to determine if the toast lands butter side down, but to determine if the butter is causing it to do so. Their rig made perfect sense to rule out the butter as being the cause of toast landing butter side down. And as Adam's rig demonstrated, the height of the table/countertop/plate was likely the most important variable. They were isolating butter as the variable - get it?
@@allanshpeley4284 in the beginning tho jamie did talk about how one would drop it,wenn eating,or getting it from toaster to table i believe...maybe they will sequel this test..
it is wrong test off toast. nodody start dropping the toast vertical. it always starts flat on a table / plate. because off that the marmalade always starts on top off the bread. not vertical
The point is to determine if it's the butter causing it to land butter side down. And to do that they need a way to drop it so that it lands on the same side half the time. That's why they built the rig. Their experiment demonstrated it wasn't the butter that causes toast to fall butter side down, but more likely the height of the table/counter top.
The statistics are way off in this episode. 29% is within a standard deviation of 25% for the sample size they were using, and 7 to 3 is not a wild result for a random distribution.
programm interrference under realistic contitons its 30 70
and Grant?
I do not remember the year but Scientific American, published a study on toasted bread and jam sliding off a table top. It was not equal, there was movement. The idea was that a piece of toast while eating is knocked of the table. They tested a piece sliding horizontally with some momentum then no table. The results showed a spin and turn that splatted jam onto the floor. I do not have digital access but that was the scenario rather than the vertical orientation drop. That was dramatic but the clue was when you first got biased results because real life that is how I drop jelly, off the dish bumped by my coffee mug etc.
the brick car. si lo lanzas muy duro a tu hermanito, lo matarias..
Scottie is a hottie 😍
As always, cool Jamie designs are simple gets the job done. Simplicity is highest point of complexity.
Adam designs just as obnoxious as he is. Just a whole lot of smoke......
S2 IS SO NOTICABLE JAMIE HAS NO PERONALITY YET AND ACTING SO BOSSISH LIKE SUPERVISING THE SECONDARY CREW I GUESS THATS WHY HE BROUGHT IN GRANT
Errrr...he was the boss, M5 was his company. They were all his employees.