Dirty vs Clean Car | MythBusters | Season 6 Episode 29 | Full Episode
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- เผยแพร่เมื่อ 31 มี.ค. 2024
- #MythBusters #FactOrFiction
Adam and Jamie get down and dirty with the myth that a muddy motorcar gets better gas mileage than it's clean cousin. Meanwhile Kari, Grant and Tory are hitting the sauce and comparing hangovers to test an age old adage about beer and liquor.
Using science as a tool, Hollywood special effects experts attempt to debunk rumours, urban legends and popular myths that have captivated the minds of many individuals.
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I'm so absurdly sad that Adam and James didn't use a VW Golf
This comment made me giggle. Thanks haha
Ok, that took me a while to understand... I'm so stupid!!! hahaha, great joke, man!!!
VW Golf are not very popular in the US
I would not be surprised if they exist under a different name
@@xl000 they're not very popular there, but they're still sold as VW Golf
@@xl000 afaik they used to be sold as vw rabbit, but at one point they agreed to the name golf
Poor Grant, didn't even get to start the puke test.
Kari: "Just think, when you vomit, the test is over!"
Grant's stomach: "Sounds good, here ya go."
Well you can see that the puke is coming from Grant's right cheek
@@webraverx If you actually watch it slowly (god why did i do that?) he is definitely throwing up
also for the original comment - it's so funny, Kari literally just saying the word 'vomit' triggers the response
We’ve all been there. Where the idea of puking makes you want to puke.
RIP Grant… :(
31:08 production yelling at Tory lol
Laughed my ass of when Tory tried to jump in bed and almost broke both of his legs.
Sadistic
That was stupid AF. Tory's clumsy as hell when he's sober, so that was a right dick move that could have ended SO much worse. Silly bugger 😅😆
It bears repeating, as funny as that looks and watch, don’t try that at home.
If you listen closely, someone in the background is going "Waitwaitwaitwait, Tory!" as he's about to jump, lol
I cringed so hard. It came so unexspected for me.
Also the way he just goes like "yep, time for bed" immediately after, you can tell he hurt himself but knew he got real lucky there.
Ah yes; the episode where they get absolutely hammered for science. Classic.
"It's a squirrel! Get him!"
I love the randomness of this show's moments...
Tory's joke about American chopper was golden!!
My theory is that you save more money at the car wash if you don’t wash your car.
Yah I have 4 km's of dirt road to get home! I spent 8 dollars last week to clean my my car of all the mud build up and to bring my car home dirty again..............
A bucket of soap and a sponge, and you can clean the car for nearly free at home
@@_Zekken if you want to destroy your rubber sealings, windshild wipers, and so on than yes. car shampoo is not that expensive..
That opening shot, with Jamie twirling a longsword, is just the perfect display of why he’s such a hero in my eyes!
I grew up watching MythBusters non-stop, yet here I am rewatching it, just because I love Jamie’s style and character so much. With divorced parents, I watched so much of this show in my youth that it feels as though these two “gentlemen” practically raised me! We’ll see if that’s a good thing, or a dangerous one!
Two of a kind!
My parents separated, and me and my sister were practically raised by Mythbusters too
We jokingly call them our extra dads a lot and were really inspired by them into becoming makers and crafters
They truly educated us in the ways of science.
I thought Tori's 11 beers were ridiculous, but Grant getting a puking hangover on 5 beers?? That's an engineer right there
y'all got some very different engineers over yonder
What kind of engineers are you hanging with lol
asian descent, asians have really bad alcohol tolerance
It truly show how different constitution, different effects.
After all for same alcohol amount he got no hangover with the beer + liquor.
Its clear from the other test that Grant handles beer badly. Its yeast based, the liquor is spirit based, there is a difference.
About the golf ball effect thing, there's probably several reasons we don't see it on cars or planes.
On cars:
1. It's a lot harder (and more expensive) to manufacture and maintain.
2. You really only need the turbulent flow at the back of the car, which you can produce using the little fins that a lot of cars have at the back.
3. I'm guessing a lot of people wouldn't like the look.
On planes:
1. You're seriously going to mess up the lift. Ice on wings can have the same effect, and has resulted in a few crashes.
Just don't do it on the wings then
But also when going through high winds and especially rain the dimples would create a lot of turbulance which will translate into vibrations. With a golfball it is a sphere so it's the same all the way around. With an irregular shape like a car though the forces can interact with each other in all kinds of ways.
They are actually used on aircraft.... sort of, we have things called vortex generators which are used to prevent airflow seperation in specific strategic areas of the wings which can improve stall characeristics. The reason you don't see dimples is that they are harder to build and might compromise the integrity of a pressurised fuselage or add additional unwanted weight, you also have to account for the fact that the fuselage of an aircraft is usually highly tapered at the back meaning that the airflow is much less likely to seperate and create a low pressure zone in the first place so the airflow just doesn't need to stick as well
Did anyone ask you? No? Who gives a shit what you think.
The Bugatti Bolide is the only car it use it concept in real life, but those cars are made to the upmost extreme so a extra 11% is just golden.
This is why Volkswagen made the Golf model💯
And then proceeded to lie about it's efficiency
@@linux_doggototal lie... 48mpg in a 21 year old shit box diesel with over 400,000 miles. smfh. People these days.
So interesting watching a show you grew up with and even though it doesn’t feel that long ago, seeing the old technology looks ancient. Box TVs, camcorders, dvd player.
The beer and liquor myth tends to be same amount of beer at least plus a load of spirits plus a kebab on the way home. Real life conditions and lab conditions may differ
The big factor here is time and amount consumed. When you combine beer and liquour you tend to drink more alcohol in a shorter time frame, thus raising your BAC faster. If the evening is the same length as well you end up drinking a larger amount than you would otherwise, thus leading to this idea that mixing your drinks is a bad idea.
They were approaching this from the wrong angle really, a better thing to determine is whether taking shots in addition to their regular drinking would cause them to overestimate or underestimate how much they can reasonably tolerate.
@@redshirt49 I agree, that has to be what the saying is in some way implying. I mean, it´s not like a 293 page doctorate, it´s meant as advice for novice drunkards ;) ie. telling your teenagers (or friends) how not to get sh1tfaced. So your explanation is plausible.
@@redshirt49 It also depends on the Kind of Spirits as well and another Variable is Sugar which can worsen a hangover. i noticed they Drank mostly Whiskey (Which has no Sugar) but they were Drinking Tequilia which can have some Sugar in it and i wonder if the Results could be diffrent if they were Drink Vodka or a more Sugary Spirit like Rum.
@@redshirt49 not to mention dehydration, beer will at least replace some of the lost water.
It probably also would've made more sense to people watching to translate the alcohol they drank into standard drinks.
I don't know about in the US, but here in Australia, any alcoholic drink must have the alcohol percentage and the number of standard drinks in the bottle/can. Eg: a rum and coke can is normally 1.6-1.8 standard drinks.
This is easier to then translate into how many standard drinks are in the beer and shots, which are usually not marked or mentioned in a bar.
the "I dont know what to dooou" got me hahaha
It may be different in the US.. But in Canada the rhyme goes as follows-> "Beer before liquor, never been sicker. Liquor before beer and you're in the clear".
In Germany it's
"Bier auf Wein, das lass sein. Wein auf Bier, das rat' ich dir."
which would translate to the rule "Drink beer first and wine second, but not the other way round".
Or if I had to rhyme it: "Beer after wine and it won't be fine. Wine after beer and you're in the clear."
I'm willing to bet it originally had nothing to do with the effect of mixing it, but more that you're more likely to not consider your intake of shots if you're already drunk. Five shots when sober is hell, five shots when already drunk is easy.
Sounds a bit like the good ol’ “beer before grass, you’re on your ass, grass before beer, you’re in the clear” 😂
@@NFSHeld We have exactly the same saying in holland
@@NFSHeldin Dutch they say “bier voor wijn geeft venijn, wijn voor bier geeft plezier”
Which roughly translates into
“Beer before wine is venomous, wine before beer is joyous”
We don’t have dimples on aircraft, we have vortex generators and slats which do the same thing.
Keep the boundary layer as close to the surface as possible as long as possible.
This is one of my Favourite Episodes! LOVE IT!!
I don't think Grant was an alcohol drinker, that means the difference between the first time in a long time getting hammered and the second time is massive. You build a certain tolerance for it. I think beer giving a worse feeling is because just drinking multiple liters in such a short time is sickening in itself.
I think the myth comes from the difference in the consumption. You can very easily down a few shots, but if you're on your 10th beer you naturally go slower. Most people as a result drink more when drinking hard liqour than just beer, thus resulting in an idea that liqour gives worse hangovers
Rip grant miss this show it the best show
This is my favourite episode. Tied with my other favourite episode which I love to see you upload is the one that features Waterslide Wipeout and Right turns only.
Also, I would like to point out that golf balls spin.
8:33 ehmm where did you source these sounds from? 😅
Rest in Peace grant i know u at a better place now !
ill always remember u and the Joy u and "the mythbusters" gave me and my family im my childhood thank you ❤
25:08 that one killed me 😂😂
If you are on PC click this --> 24:32 and pause
Then move frame by frame by pressing "." or "," repeatedly.
The way in which Grant clumsily raises the leg rest and Tory trips into it lol.
Great episode.
The golfball car! I remember this from when i was a kid
it is interesting... If you are doing shots with no other fluid consumption then you are drinking significantly less liquid. That would only enhance the dehydration effect... which would increase the hang over... which would be the origin of the myth I would assume.
consuming a lot of the same makes you sicker quicker. Variety is key in anything you consume. Im guessing thats somehow related
Just to say I am going to catch up on your episodes. Watched some years ago and thought they were awesome then!
With this episode the car experiment you may have got a environmental potential key to making a difference. The problem would be to make this attractive for the future car industry. I think the looks could make it quite unique and could attract some consumers. Not to mention the attractiveness of helping the environment.
The test on alcohol was so fun to watch. Thank you to Tory and Grant for putting themselves through such a test to prove or disprove the quote of mixing verses not.
Just to give some personal info. here. Beer I can't handle well, but whiskey I can handle very well. Could there be a genetic factory here.
Excellent job on coming up with the perfect tests to test hangover effects!
Enjoying your show, thank you so much!
it would need entirely new manufacturing techniques to achieve.
@@TheInfectous I totally agree. My father was a tool and dye maker for a steel company years ago. The company made car parts. It would be something worth looking into though. Expensive changes would have to be made.
I'd think if it works on planes, it would be even better for fuel economy overall
@@Aikidjam Smart idea!
I'm suprised nobody has tried it on a plane yet
7:45 both were like wtf 😂
i'm seriously surprised seeing the dimple thing did indeed such a sizable effect in drag reduction. because unlike a golf ball which is under a low turbulent regime (Re=O(5)) so that the laminar-turbulent transition hugely shrinks the wake, flow around a car at highway speed is already highly turbulent (Re=O(7)) and making it more turbulent wouldn't really help. but i suppose it still contributes working as a vortex generator and similarly energizing the bl to keep the flow attached. ofc the effect cannot be as dramatic as a golf ball but 11% was still more than i expected. perhaps ''07 taurus doesn't have quite good aerodynamics in the first place, so that there's yet room for improvement with slight modifications
Just drink as much water as you possibly can stand before you go to bed and you'll be fine. Works every time.
It's better to drink something like a sports drink or fruit juice, eating something helps too.
drink water and get some electrolytes
You jerk, tried pretty hard to blow your profile pic off my screen 😄
It really bothers me that they didn’t just do the clean car test first.
I was a bit confused by that to.
this probably has to be my favotite episode ever.
Jamie knocked it out of the park with the dimple cutter tool, so simple.
Mercedes and a few other manufacturers have integrated dimple like functionality into their concept and super cars. Pretty neat to see these guys laying down the foundation.
When I quit alcohol, I tried non-alcoholic beer a few times and was astounded that I felt just as hungover the next day. It’s clearly not the alcohol content alone which causes the hangover. I can drink far more as straight spirits than as beer, which leads me to think that I’ve underestimated how much I’ve drunk on liquor or mixed drinks vs just beer.
This episode changed the way i used to drink alcohol forever. Before that i was usually sticking to just one type and had terrible hangovers the morning after. Decided to try it out one night while at a party and added few shots of ouzo after the beer and omg... the next morning it was like i wasn't drinking at all. No headache no nothing. Tried it again but with wine and beer - same effect. Ever since then i always add something else to kinda seal off the night of whatever i was drinking before and it works flawlessly every single time. Really curious though what is the science behind all of this. How is this technique working, cause it's not like happening only once or twice... IT's been almost 20 years now that i use it and in never fails. In fact once on a fishing/camping trip 5 years ago, we didn't have anything else, but beer and the morning after was simply terrible. So i guess this is the control test that i needed to know this isn't just a fluke or placebo.
I'm curious about how many days were between the first session of drinking and the second one. Because in my own experience, whenever I have a heavy drinking night after a fairly reasonable amount of time not drinking (around a month or so) Not only I got myself more easily wasted and with less amount of alcohol, I've always had the most horrible, disabling hangover. But if I have another heavy drinking session sooner after the first one (days or less than 2 weeks after) I can really feel a lot of tolerance overalls. Then, the next day the hangover last until around midday, and if I drink a lot of water is completely bearable.
Theoretically you would only need a dimpled rear end on a car for ultimate aerodynamics if I'm not mistaking
exactly my thought. a smoother front would also provide less drag.
I would have been thrilled to drink for science in my early twenties. Now that I've hit mid-thirties, you'd have to pay me quite handsomely for the same effort.
That's why Bugatti developed dimpled air scoop at the Bolide's roof. Clever.
My impression was that "beer before liquor" referred to if you start drinking liquor after already being drunk you're going to drink more since you're already intoxicated and therefore have a bigger hangover.
I always heard the saying as "beer before liquor never sicker, liquor before beer you're in the clear"
its the puns that makes it all worth it
It's pottery in motion.
That feels like a president trying to calculate every individual fuel consumption, but could be true if road is not asphalt in the project cars.
11 cans of beer? I'm hungover after just 3 cans
Ah the good old days!
Maybe its just me but when I take shots I am already slighy loaded from the beers
Been great watching these again , RIP Grant
I feel like putting the dimple weight in the back might have messed with a variable causing the difference in fuel consumption.
A great example of golf effect on cars Is the black lether roof of Nascar, the ones that have it was faster than the others without it
RIP Grant, i think the liver also has a better condition after a few days of drinking and you body is able to remove the alcohol faster
The myhdirth would be applied while driving, different from spraying it on. Also I would believe the clay should increase the area of the car giving less fuel efficency while the weight lowered the car giving better fuel efficency.
What if the golf ball effect works on PLANES !?!
It would, but it would also mess up the lift.
@@nipuniperera9918 maybe just on the fuselage, though idk how that would work structurally
Actually it does but if you look at nature, you'll notice that animals that also benefit from reduced drag don't have huge dimples like golf balls, instead they have rough surface made of out tiny overlapping sheds. The typically example for that is the skin of a shark. And guess what? Some airlines have been testing covering their planes with transparent foils with such a structure and yes, that did work very well. Lufthansa started to cover their airplanes with such a foil in 2023. It's called AeroSHARK. Just search for it if you are interested in details.
But if that effect has been known for so long and successful tests have already been done years ago, why did it take so long before airlines started doing it? Well, safety is paramount when flying (except when we are talking about Boeing) and long-term studies had to ensure that such foils do not pose a safety risk. I mean, what if they could have come loose during storms and then such a foil was sucked into the engine? What if these foils had massively worsened the flight behavior in turbulence? What if water holds much stronger on these films and then freezes into thick sheets of ice as soon as the outside temperature falls below a certain level? There were a number of questions that had to be clarified before flight safety authorities could even give their approval.
@@officer_baitlyn Its already done. Not by dimples, but by the design to limit the drag as much as possible.
They should have tested their hangover after drining only liquor. As for the golf ball effect, 11% might be a huge difference for some, like lorries and goods transport. I wonder how that would work on train running off electricity, as well as for eletric vehicles. Actually, especially for those being given their poorer range.
That golf ball car is awesome! Fair play to them for going through SUCH a chore to get that done. It'd look even better with white clay, it'll look like a golf ball on wheels then 🙃😅
Absolutely shocked about the affect it has on the aerodynamics too, damn... Very surprised at the outcome of Grant and Tory's liquor charades too. And damn that was bonkers when Tory jumped onto the bed. Silly bugger 😆
I don't think the golf ball dimples in the car had much to do with the reduction in fuel consumption. I suggest it was a change in windspeed or -direction since this would have a much bigger impact on aerodynamic drag.
@@tobymaxlthe fuel efficiency of the undimpled cars was measured at different times but were the same, did the wind just happen to be the same both times?
why dint they test clean car first?
How else could they have shown off how many car washes were required to clean off the spray "clayting" then? 😉
Who was supposed to clean it after the show then😂
Cause then they'd have to clean the car twice, cause the car was already dirty to begin with
They are completely wasted 😂
I think, when it comes to the liquor+beer test, it's strictly about the fact, that human organism may absorb different alcoholic beverages in different rates. The tests before they went to sleep showed that they felt much more sober on liquor+beer than on beers only. Without the restrictions of the test, normal person would consume much more alcohol, because they'd feel fine for longer period of time.
Pretty sure the weight of the dirt will negate whatever fuel efficiency improvements you might get from it
I've got a 30 year old Opel Calibra, a Coupe that had one of the best aerodynamics in its time (and still today).
With my motorization of 170 hp, the car has a top speed of 147 mph.
In the moment, this old car has a mileage of pretty exactly 24 mpg, (no winter, mixed traffic). Not too bad for that age...
Ant that means that on a free autobahn, speeds of 90-110 mph, had him on 130 once, way not the end, but 30 years and 85,000 miles, take it easy.
And on a straight course like that, with a constant 65 mph, I am pretty sure the 29 mpg of that dimpling would be achieveable without problems.
Hmm.... what has improved in the last 30 years?
As far as I understand it, you actually want your car to be smpoth, but only have the point of separation (and a bit up the wind stream) in prder to reduce the drag.
Or you can optimize the dimples for a specific speed so the turbulence is just right, then you can coat the entire front of the car sp it gets no flow drag over its surface.
I think the studio got sick of them buying 5 cars and told them to make this one last 😂
11 percent improvement... someone has been watching Matt's Off Road Recovery!
37:57 should have used a VW Golf for the test
Wait I thought it was “beer and liquor, get drunk quicker”
The logical consequence would have been to take this car as is, and take it into a full-.size wind tunnel and EXACTLY analyze the airflow.
A smooth surface causes a smooth (laminar) airflow with little drag, But such an airflow is sensitive against small disturbances, pressure changes, or following a shape. Then the airflow "delaminates", seperates from the surface, and then causes large turbulent areas creating a lot of drag.
A rough surface creates a basic turbulent boundary layer on the surface. This as such has a higher basic drag coefficient than the laminar airflow. But it is more "robust" against the above disturbances, so follows a surface better.
So it may be that the dimples at some points improved the airflow, probaby at the rear window.
I am pretty sure that the spoiler wing on the trunk is absolutely useless. It will not produce less drag, and in these the additional downforce it creates on the rear axyle is caused by the weight of the wing and not by aerodynamic forces.
I think that it would have worked even better with smaller dimples.
Our baby Graaaant
Just don't get drunk with beer or wine. Worst headache ever. If I plan to get wasted I simply stick to scotch with coke and the only symptom after is being tired.
I still feel they didn’t do the Golfball car right.
The reason the Golfball has dimples everywhere is since it will rotate. But for the car you just want it near the back where you need the effect. So dimples just above the rear window and on the trunk.
its more economical to drive a dirty car cause you're not paying for car washes
The thing with beer is that the concentration of alcohol is really low compared to liquor. In order to consume the same amount of alcohol as with one shot if strong liquor you have to drink a lot of it, when you load your stomach with so much liquid combined with the alcohol it will make your stomach more upset.
I always found that drinking liquor alone is way better than even beer with liquor.
Also, the carbonation of beer makes you build up a lot of gas in your guts, making it even worse when it comes to nausea.
Kari had the glow in the episode😍😍
Yes it definitely looks to me like she was pregnant and I am glad I wasn’t the only one who noticed which if it is true I hope she didn’t participate in any of the myths that could harm the child herself besides being an alarm to wake the ones that were drinking the alcohol
Come on 5 small beers is nothing 😂
😂 Epic car experiment.
But there are a few problems with the alcohol experiment: alcohol neutralizing enzymes level rises after alcohol consumption, so their level might have been higher after the 1st test, so the alcohol in the 2nd test was neutralized faster, easing the hangover. Also, they didn't say they controlled for water consumption. Lastly, as every experiment involving humans, it should've been double-blind (not feasible here), to remove bias.
Drunk Grant is funny Grant.
How can I get a poster like that of Kari for my wall!😍
65-55=10mph smaller and 55 is about max economy, so same fuel use with clay is anticipated.
manufacturers of EV should use this feature XD
25:08 I don't know what 🎶TODOO🎶
Tory has a massive headache because he knocked his spine up into his head 😅
Should have drank shots first, then beer, its the bubbles that f you up lol
Probably just need the dimples at the back of the car because it is directly behind the car where you want to break up the vacuum.
My appartment is so dirty and fuel efficent, the energy goes to +.
Microbial growth generates enough heat, and it smells so bad the mailman refuses to deliver any bills.
why didnt they dimple half the car and see if it pulls to one side LOL!
They should have used mixed drinks to cover the difference in water consumed between beer and hooch.
It seems clear that it wasn't the water difference. Making cocktails instead of shots would have also added a large amount of sugar, which could have made the hangover worse.
A while back I had the opportunity to buy a second hand car that had been through a severe hailstorm…. Now I’m thinking it may have been a good buy.
Not necessarily. I didn’t hear them say what they did to compensate for the weight of the clay that they removed from the car.
Welp, they put in inside the car afterwards.@@justinweatherford8129
Put in a tub and chucked it in the back of the car, its in the video.
03:38 What a missed opportunity of, instead of choosing a random 65, pick 88MPH.
Lmao, 😂 Just think about when you throw up and the test is over.
🤢 🤮
What happened to S06E28 ?
12:13 would love this
10% is significant difference in fuel economy
Wait, 6?!
I guess the data on the fuel consumption testing might be influenced by change in windspeed and/or direction of wind not accounted for.
Also outside temperature, temperature of an engine, way of accelerating at the beginning. Too many variables to be honest.
not 11% difference. think about it!
@@xTerminatorAndy Exactly! since aerodynamic drag F=(1/2)*rho*cw*A*v^2
with rho being the density of the air, cw ...coefficient of drag, A...area of attack and v...windspeed.
I don't think it is plausible the coefficient of drag changed by 11%, especially since the small scale test had about similar results for both the smooth and dimpled car. As the density of air and the area of attack stay about the same in the dimpled car run I think it is much more likely the windspeed changed by about 3.5% (sqrt(11)).
Additionally there are factors influencing the thermodynamic efficiency of the car as @deadins pointed out.
Pretty sure they got word from engineers working on cars that they tested the concept after this episode came out and they were confirmed that it would in fact have a substantial impact on fuel economy.
The better question is whether it impacts how smooth the car feels or how loud the car is. Because those are aspects that would impact the driver's perception much more than fuel economy would.. Sadly.
@@ferinzz I was suspicious of their results because i saw this one earlier: th-cam.com/video/snNL5GgOq_c/w-d-xo.htmlsi=3u_BsUEpVnPW1zAg&t=312 TLDR: Adam talks about a car manufacturer putting a fullsize dimpled clay model in a wind tunnel and not coming to the same results the mythbusters got.
11 beers for this kind of hangover isn't as much as I'd expect :D
The car that is dirty weighs more, they should have weighed the mud and added that weight to the clean car.
I dont know what to dOooO 🤣