Steam Powered Machine Guns and Lie Detectors | MythBusters | Season 5 Episode 24 | Full Episode
Вставка
- Опубліковано 30 лис 2023
- #MythBusters #FactOrFiction
Jamie and Adam are testing out how powerful a steam powered machine gun can be while the team are testing ways to see if it is possible to beat a lie detector.
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.
Subscribe to catch the latest clips and episodes: / @mythbusterstvshow - Розваги
Youll never really have to worry about beating a lie detector test, theyre inadmissible in court
True but they can use the results to obtain a confession from you, or to give them leads in their investigation that might lead to concrete evidence
And falsely passing one may get them off your back
@@MonotoneCreeper that's not accurate though. It is not the results (mostly pseudo-scientific gibberish, anyway) but the records of previous and maybe later interview what they could use to indict you. That's the big secret about polygraphs, the machine is only part of a staging designed to build up the stress on the interviewee with the hope of obtain a spontaneous confession.
@@MonotoneCreeper there will never be a time where you will be forced to take lie detector test. The police will guilt trip you to take it or anything so they can have an excuse to hold you or search you whatever they make up. Just get a lawyer and stfu.
Court is where justice will hit ya. Lie detectors may be in use where you have no right to an attorney ;)
Adam keeps playing gleefully with balls and what's basically a simple metal tube, nothing more.
Jamie: "Yeah, I know it's fun, let me get back to work."
That's probably the most succinct characterization of the two possible..
Supposedly the two of them couldn't stand each other whatsoever.
I'd have to agree Adam is way more enthusiastic than Jamey.
As the beginning of each episode says they have a combined 30 years as actors and special effects experts.
This is absolutely one of my favorite shows growing up. I am truly grateful for all the years and truly wish I could make a living myself having the time of my life everyday.
I'm at a point in life where I am stuck.
I have done just about every occupation in one way or another.
I am crippled with option overload.
I guess they had to give the cops a propaganda freebie on the lie detector stuff so that they can keep using their bomb squad
Kari's face after the second test......she was actually angry :)
17:20 "YEA STOP TALKING WHAT IS THE PSI"
about 171 psi, it does not propel the projectile, it just spin the barrel
😭
4:20 I'd pay to hear their hourlong brainstorm uncut.
When they talk about the studies on the polygraph. They fail to mention that the lower figure would mean two out of ten being wrongly convicted if they used this in court. Why are the figures not more consistent if it's so good?
Because all humans are muntants and there is nothing that fits everyone.
Because it's a good tool to support accusations in the eyes of the public.
They also curiously dont mention the false positive rate, which is quite high. If you are innocent, getting a polygraph test is a bad idea. It's inherently not designed to measure falsehood, its designed to measure stress and the stress of avoiding a false conviction is quite high.
It's just an all too small samplesize.
@@hexlart8481 Why would the stress of avoiding a false conviction be higher than the stress of avoiding a righteous conviction?
This is one of my fave eps. The steam machine guns is one of the coolest builds the show had
How do they know the polygraph hasn't been beaten? Surely the whole point of defeating a lie detector is to not get detected beating the detector.
This "experiment" is full of confirmation bias. It´s almost like a police enforcement paid promotion. 🤣
Well they do know that's why the rest of the world doesn't use them... Because they are extremely unreliable
They would put someone under the detector and comes out as innocent, and then collect enough proof to know that it was him, so he had to have beaten the detector
@@LeVarito I reject your reality and substitute my own.
That lie detector test could have easily failed, if they just went with the mindset that they didn't actually steal anything, but borrowed it for the episode.
A bit like how the MRI detector basically maps the blood flow. Which is higher when your brain has to work to make something up. On the other hand, a lie that is told often enough can be recalled as easily as any truthful memory.
Shilling for the bogus interrogation technique. The lie detector is a sham.
It always disgusts me how the polygraph people lie about the accuracy & efficacy of their stupid pseudoscience machine, and about the related scientific research. The fact of the matter is they *need* people to believe it works, in order for it to have the intimidating effect that the operators rely on.
The process needs to intimidate people in order to put the subject under stress in order to break their composure and force mistakes and inconsistencies in their answers. A "lie detector test" is less about the stupid machine, and more about the interrogation techniques of the operator.
In theory, you might think, if someone is telling the truth they shouldn't feel the stress, right? Wrong! The "false positive" rate of a polygraph "test" is estimated to be about 50%. That is, assuming you're being truthful, there's still a 1-in-2 chance that the operator will conclude that you are lying.
For most honest people, simply being falsely accused of something is incredibly stressful, and polygraph tests are *not* designed to be reassuring in any way. Polygraph tests have been an integral part of innumerable false convictions and forced false confessions. If you are someone who cares more about justice than about securing a conviction (ie, you're a normal person, and not a police detective), I believe the more you look into this ridiculous tool of injustice, the stronger your moral conviction against it should be.
I guess overselling the polygraphs ability is necessary to make it work. If anybody would think they don't work, the polygraph has nothing to detect. Like magic tricks, its about convincing the audience.
You got the point. Polygraphy has never been about rate the sincerity (or insincerity) of your answers. That's scientifically impossible, the mere concept of truth is not about facts but moral standards. Polygraphy Is about press you enough to confess (whether you are guilty or not). And that put it at the same level of sleep deprivation and other forms of psychological torture.
I ain't readin allat 💀
@@danataininja1243 tl;dr Polygraphs are a scam
@@danataininja1243 Basically polygraphs are statistically bullshit since they measure stress, and being arrested tends to be stressful, leading to false convictions. It's less about being able to lie to them and more about them not detecting the truth.
RIP Grant
Seeing Grant on brain scan machine is extra sad.
"that sounds like a maschinegun" and I expected an AFT guy appear out of thin air and shoot a dog.
They could increase muzzle velocity on the cannon
Longer barrels. Lubricating the rounds
I believe that with tweaking the design could make it lethal
also smaller balls
Like yours?@@Astharot90
@@Astharot90 How would that improve the lethality?
I just realised that Adam sounds like Herr Flick from Allo Allo at 19:30 🤣
47:02 Jamie riding a Conversion Ebike in 2007.
Wait I thought polygraph questions should be only yes or no questions? Why is there math?
No, they will ask lots of different types of questions, including forcing you to lie.
Wouldn't this Steam Powered Machine Gun work better with steam pressure behind the projectile, its easy to do, using the rotary valve principal on the shaft would make it much more powerful and accurate, a missing part of the design ?
Shirtless Jamie awakened something in me...
Part of me wonders if the steam machinegun wasn't fully intended to kill, but was meant to be more of an intimidation factor?
I mean, you didn't exactly want to charge a musket line to begin with, even with how innaccurate they could be at range.
Would you, as a civil war soldier, want to charge toward a line with a couple of these strange machines hissing and bellowing steam; that suddenly start hurling shot at you in rapid succession? Even if the rounds couldn't penetrate like in the MB tests here.. considering it still broke bone? you hit someone in the chest, head, throat? and they're still going down with internal trauma, concussion ext depending where it hit em.
Given the time period, weapons n such of the day and what was going on; I think it'd still have been effective in certain areas of combat, even if only as a deterant.
Most soldiers would look at that and laugh. But in a serious note not many men of the Union Army would understand velocity, range, or ECT..
not to mention, you could lube the shaft, add rifling, and extend it as well to create even higher velocities, if you use smaller shot it will also have a substantially easier time penetrating against skin if thats your goal
You could also set it up to have a cone of possible projectiles and use it in fort defense, this sort of thing seems better suited to that anyways - imagine angling that thing downwards to add additional velocity and having multiple overlapping kill zones in a pentagonal fort, you could also add armour around it if its stationary. Fort assaults would be out of the question
Yes, add rifling to a spherical projectile, because that'll work...@@HeavyMetalorRockfan9
There is also the idea that injuring an enemy soldier is more effective then putting them down.
With injuries you take more people out of the fight. Think about what it takes to get a soldier back from the front lines. All that equipment and manpower isn't there to shoot back.
I know it would probably not be leathal but the amount of blunt force trauma one of those bullets could cause would probaly still take you out of the fight. Yes a sledgehammer to the chest might not make a wound but that does not make you okay or nessisaly alive afterwards. The pellet size seams to have been ideal in transfering all the energy to the target nevermind penetration
I mean ... no, it doesn't need to kill. If it can injure that's also useful in a war. Imagine getting hit in the face with such a ball - and not just one but multiple times... you probably won't be fighting any longer.
I wonder how much they spent for the busride.
Why they did the Lie detector test is beyond me. We have test data that proves they don't always work but have a very high success chance. But in some cases a panicked person or a person without emotions can clear or fail parts of the test.
man i myss busters
21:10 the test results fall anywhere from 80% to about 99% inaccuracy
1:27 Ooooooof.... 😬
Man i could never beat a lie detector. I'm so nervous all the time while talking to other people that a lie detector would always think i'm lying, even if i'm not.
Then you've beaten it. If control truth statements flag "lie" - then it's not telling them anything.
Maybe they'll get you by using the tarot cards or dowsing rods (oh sorry, those are just for detecting bombs. [Look it up!😮])
😂😂totally relatable, I’d dam near kill myself but don’t make me catch the bus 😂😂
fun test
Good to know. Only 80 to 99% of polygraph criminals are actually guilty...
And what about evidence?
I love these guys! Thank you, Mythbusters, for the greatest show ever.
Fun fact: the guy who "invented" the Polygraph was lying, his wife came up with the idea.
makes me wonder (and a bit scared abut my tests) that they didn't find anything wrong with Grant during his MRI.
I mean this episode was probably filmed a bit over a decade ago so that's most likely why
This was filmed quite a long time ago.
Amazing...i watched this episode as a teenager and when I heard about Grant death few years ago, I almost immediately remembered this episode and had this same question...
Cant detect an exploding bloodvessel 10 +years before it happens
If you did the most basic bit of research you wouldn't have to wonder nor worry
Right to remain silent applies to a polygraph test?
Yes it does but since you need to agree to polygraph test, in best case scenario you would look like ldiot that you agreed to it and then not answering and in the worst case you would look suspicious af and become suspect no. 1.
I wonder if Tori took the ring.
Human analogue - Hamalogue
I miss old Jamie
45:12 But imagine the horror a weapon of this sort might induce in the opponent that doesn't know but fears it might kill.
Soo 6x11-15 is 54? :D
Did they really take a bus?
My thoughts exactly. Over 3k miles ? That's probably 3 days worth of traveling. That's a lot.
MUITO BOM!!!!!
Adam was a bit chunky during this time.
Adams' "timer" didn't work
The worst part of Mythbusters was the editing. They show the best parts happnening 10 times before it actually happens. Destroying all excitement. By the time the clip comes by, you know by heart, whats gone happen.
sling or sling shot; two different things
99% is not even enough of a percent chance. that mean 1 in 100 people is innocent.
It's a bogus stat anyway. Bet they were very happy to get more free advertising by having the show say "Hey look out, this test is still super accurate and catches everyone who committed a crime"
It's a feedback loop of keeping to convince the public the polygraph is infallible so that they get nervous and stressed when undergoing it.
what is a 2 way mirror? does he mean a window?
i knew he would beat the machine. i could also. pretty easy
It's not really tricking a MRI test if you took a watch instead of a ring, you still took something which was why it detected it. All 3 were actually caught and it did the job.
Banijay Science uploads faster, I wish this channel can upload even faster and the old seasons.
But Banijay has crap audio most of the time.
The blood vessels in grants brain was is success
But unfortunately was also his demise
I love adam but dang, I always skip his impersonations. 😂😂😂😂
Asking the US police about the efficacy of polygraph tests is like asking a burglar if you should lock your doors. Very weak episode, sadly.
with the steam gun, next time look at the papers how to build it. the reason it hit the wall loook at the papers how the front looks like. thats how the bullets comes out of the gun
A pellet gun has the projectile moved by the compressed air itself. This thing only uses rotational force. The steam does not propell the BB's it only powers the motor.
Now that we know just how straigned the relationship between those two was... the "Yeah, stop talking, what's the pressure" comment should've been a red flag at the time this aired.
Guess this must've been one of those days where Adam was goofing off a bit more than Jamie could tolerate... it _is_ a frightfully dangerous contraption they're standing right next to right now.
Not really a red flag think about it a potential bomb/rocket near you and one of your guys is goofing around while he should monitoring that pressure.
If you were in his place you'll be bit of pissed/nervous if another guy is doing something else than watching that killer pressure.
kinda weird that you cane kill a pigeon or rabbit whit a pellet gun that uses compressed air aka BBgun so
i think they used to heavy ammo that reduces the speed and impact,
also the flaw in the design of swinging instead of kicking
take a pinball table for example and compress those flippers
The Crosman Benjamin .357 air rifles have been used to take Cape Buffalo, Wildebeest and even crocs. Air guns aren't gentle by any means. I reckon a steam gun would work simply by venting the steam down the bore, it'd essentially be a spicy airgun. A basic cam release and hopper style mag could turn it into a machine gun. Again, we have full auto airguns, in airsoft we have CO² powered GBB rifles and pistols with ridiculous rates of fire.
All the mechanics say a steam machine gun would function and could in fact be made a lot simpler.
You shouldn’t monetize stolen content
Correct, what does that have to do with the official myth busters account uploading their own content?