Myths Redux | MythBusters | Season 5 Episode 7 | Full Episode

#MythBusters #FactOrFiction
Every so often the MythBusters draw conclusions that leave the fans seething. Well, once again, it's time for the MythBusters to put some of their most contentious outcomes under the microscope, in Myths Revisited.
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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[@Sarm8]

You can just feel them wanting to turn to the camera and say "See?!" I love it

[@crwydryny]

What the Smith says about the hammer I can verify. I was once using a hammer with a cold chisel. The handle was slightly mushroomed from years of use. One piece shot off and buried itself in my arm. That stuff can fly off pretty fast

[@Deltarious]

*some* hammers or mallets *will* explode if they are hydraulic pressed, however! It's violent enough that I'd call it an 'explosion' at least, even though it's probably technically not one

[@DarkVitamins]

It's almost as if hammers were made to hit hard things. 🤷‍♂

[@WonderboyW]

Such fun watching these old episodes, more please !

[@karls8103]

free prime has em all

[@off-gridoutbackaustralia]

@@karls8103 free prime?

[@mprebbz]

@@karls8103with insufferable ads

[@iuhihs]

29:03 if modern hammer being too soft will not cause hammer to explode, then what is problem with Jamie hitting them together? Jamie is always right

[@borntoclimb7116]

Modern hammers are hardened but the middle is soft because they dont break.

[@ArnoldRozeboomPot]

My dad was a metal worker, and he used to warn me not to hit hammer on hammer, for they are surface hardened. Later, i saw a coworker hitting a hammer to open some crate manytimes..i warned him and he looked at me like," Mind your business boy". And kept hitting untill he was lkke struck by lightning and a hole of about a centimeter x a half opened up his bicep he digarded it but had to go to hospital and had a shard removed near his shoulder..hence hitting it many times apparently causes the hardened surface to crack and then next possibly pieces could be propelled at high velocity

[@gabrielv.4358]

wow@@ArnoldRozeboomPot

[@stevo68]

Bugger, now I'm gonna have to get a tuba for the shit house.

[@JacobDutil]

14:32 Had me dying 😂

[@ryanrodrigues5355]

I must have missed this one - 45:45 - I was cheering in front of my computer

[@MrVeryCranky]

There is a video on another channel where they submeged part of a shotgun barrel under water and remotely fired it. It resulted in the cartoon banana. I think it was demotion ranch a number of years ago.

[@VisionConceptph]

I miss Grant he is mucho gwapito

[@frankcastel3239]

I was hoping to see the mute secured into the bell of the trombone like the mouthpiece.😂☮🕊

[@andrewince8824]

Not sure what lips were supposed to do. The trombone itself isn't a particularly great pressure bearing system but that's not a problem, the Wehrmacht issued cardboard Panzerschrek and Panzerfaust at the end of the war, the tube is simply a guide, it's Newton's 3rd law which launches the projectile, not pressure differentials.

[@DjDolHaus86]

The panzerschrek/faust are basically recoiless rifles or, in more simplified terms, rocket launchers. They fire a self propelled projectile and therefore the launcher doesn't need to be a pressure vessel because the launch isn't as a result of expanding gasses within a confined space. The trombone in the experiment is being used as a crude cannon where an expansion of gasses within a confined space forces a projectile out of the end of the vessel. By increasing the confinement of the pressure vessel (sealing one end of the trombone with lips) you force more of the expanding gasses to go out the desired end resulting in a greater projectile velocity. Think of it sort of like an exaggerated gas port on a semi automatic rifle, if the port is too big and too much gas is allowed to escape rather than pushing the bullet down the barrel then the speed of projectile will drop

[@dawfydd]

I don't think they tested the hammer thing enough i don't know if it gets addressed later. But if they had tools with cracks and didn't notice.. and kept using over and over its possible. Really sad they didn't keep reseting the test for at least 10 attempts after the cracks and see what (at human power) may have happened, one of the few times i think.. more testing still needed.

[@dreamboards1056]

35 years a carpenter, If i could add a photo here id show my hammer that exploded when i hit a sledge hammer with it. Shards cut my chin i have scar still.

[@Y4932]

Myth is busted, theres no way that could happen. Give it up already

[@Bruno-oj3zb]

I hit a metal chisel with a hammer as a kid and a small piece from the chisel went into my hand, I still have the scar . ( a few mm into the skin , nothing serios tho ).

[@bellybutthole]

Welding the hammerheads might anneal them...

[@stevephillips8719]

29:03 I have a scar over my solar plexus where a fragment of hammer face flew off the face of my ball pein, penetrated 4 layers of work shirt and embedded itself in my flesh. Pinky fingenail size and I had to dig it out with a pair of needlenose pliers.

[@psychosis7325]

Lost a piece of a work hardened drift doing a bearing one day and found it in my hand 3yrs later, shot off so fast and went in so clean I had no idea.

[@mellchiril]

Fans: Don't smack two hammers together Jamie! They might explode! Mythbusters: Reeeaaallly now? Awesome! Mythbusters after testing: no... no they don't, sadge. Fans: Yeah, but you weren't using pre WWII hammers for your tests ... neither was Jamie when smacking his hammers together, so where even was the point of your original complaint?

[@Jeonsaryu]

They might have been confused over Adam's jokes of how old Jamie supposedly was, and thus his inventory. We the audience are rarely consistent

[@Sokar12345]

yeah, but what if jamie had his hammers hardened by a blacksmith for no reason at all?

[@DAWS0NStream]

did they ever find the metal finger that Tori made?

[@ryanbuckley3314]

Wouldn't it take 100 years in a busy shop to work harden a striking tool? Or, is that what mushrooming is?

[@drewbranje6680]

Hammers wont "explode" they will however send shards. i have a piece of a modern hammer stuck in my forearm that hasnt come out yet after 5 years

[@ao1778]

... Why did you just leave it inside?

[@drewbranje6680]

@@ao1778 i legitimatly cant find it, it isnt causing me any pain so the dr said it would be more painful to have a surgery to find and remove it

[@zuzoscorner]

Taht sounds like an infcetion just screaming to happen.. i don't think this tale is real

[@DMTrojan]

@@ao1778 It's common practice for tiny pieces of shrapnel. I've known a bunch of military vets with bits of steel shrapnel stuck deep in various bits of the body, some including the head and torso, but there were a lot with pieces in their arms or legs. In all those cases....it's just not worth the risk to operate. Shrapnel is usually inert and sterile, and it's _very unlikely_ to cause an infection if the wound is cleaned, so it's way more dangerous to go digging around in a body cavity or organ where you could potentially snip a vessel or hit something else vital. So standard practice for tiny shards of metal is just to leave em in there, because surgery is almost always the riskier option. The body heals and scars around them and they just about always stop moving and don't cause any problems. We used to leave bullets in the body too, till we learned about how poisonous lead is. The exceptions are, of course, if the shrapnel is large or sharp, etc. Then it's surgery time.

[@liamcollinson5695]

​@@zuzoscornerI don't know a relative of mine went to doctors after like 2-3 years because his big toe was hurting he got checked out by a doctor and had a sewing needle stuck in his foot I am not quite sure how it got there tbh

[@rockid7970]

34:17 I wonder what would happen if they only heat-treated the striking part of the hammer, not the whole thing

[@MadHax-wt5tl]

Always finish on an explosion.

[@karls8103]

was thr trmpet person playing as his fireworks go off as in have the slide out n blowing air in n all that

[@speedbrain666]

Handmade hands lol

[@bobmckleo]

need to blow air into the trombone wile explosion takes place

[@gabrielv.4358]

yeeeegaaaaaaaaaaaaa

[@user-qs7ql7fn8n]

Hello

[@XenoLife]

17:17 is it me or … that moment shows the infamous tensions between the two ?

[@bobmckleo]

need to hit the hammer multiple times repeatedly

[@MrValis169]

Hugh jackmanuator

[@peterbaron6818]

The armour piercing bullet wasn't the kind used in Vietnam by the original marksman. So it's still busted, not plausible.

[@Wehra96]

M2 AP was absolutely used by Snipers in Vietnam, my biggest issue is that they called it tungsten core, which it absolutely is not.

[@DeetexSeraphine]

Papa Kalash @BrandonHerrera _and_ the Father of .500 @KentuckyBallistics might want to have their go at this.... With all the love and respect to Jamie and Adam, but that is _not_ how you treat a classic.

[@exasperated]

I love when shows openly display their contempt for their audience...

[@kraigson]

My beef with the sniper rifle experiments... They never tested it with shock meters on the MVA sniper's head. I'm 100% certain that any one of the shots that was tested in the original and revisit episodes would have killed the sniper just due to the impact of the scope with the eye socket (likely liquifying the sniper's brain inside of the skull, even if there was no external injuries).

[@designator7402]

I can only speak to this mathematically. Assume we're using 12.96 Lapua Magnum at 100 meters. According to the function I found online, you'd be talking about 1.3-1.4 Gs of impact. Now, 1.3 Gs of impact focused on a single point: That'll kill you. Spread across the area of a scope? Unlikely. MAYBE it would give you a concussion. (concussions happen from 90-120 Gs of inertial trauma) You certainly wouldn't feel great. But "liquify the brain"? No, not even remotely. Edit: Yes, it would cut up your face something horrible, but I think that's self-evident.

[@leprosysucks]

@@designator7402 physics high five lol

[@pwb83]

@@designator7402 I get your point, but I'm confused about your math. Isn't impact measured on Newtons? G's are a meassure of acceleration. Or am I missing something?

[@Wehra96]

@@designator7402 .338 Lapua Magnum is also a silly example for the time period, it would be 30-06.

[@designator7402]

@@pwb83 Probably because I didn't finish the math. We're talking acceleration relative to a mass and an area of impact. I don't know either of those, so I resorted to napkin math. If you wanna go into more detail, I welcome it!

[@zwippie92]

Plausible on banana peel?? From that little crack? NO! You're never gonna a banana peel effect from a rifle unless you've purposely weakened the barrel along where the lines are and then plugged the barrel with a steel rod or something. The fact that fans wanted this myth revisited so badly really goes to show how easily fooled some people are.

[@michagrill9432]

Those pics look like the barrel was cut and bent. Wayyy to clean edges

[@6sixtysix]

Always sad to see Adam being nice then Jamie is just like a little rude kid 47:25

[@allanshpeley4284]

They still got the trombone experiment wrong in my opinion. They should have tested the pressure exerted on the mouthpiece when playing the instrument and used some analog that could replicate that. Playing the instrument would result in a perfect seal and the force would be greater than taping the ballistic face to the mouthpiece. It may not have made a difference, but it may have been just enough back force to cause the slide to shoot off.

[@chidoritv284]

i totaly agree with you

[@borntoclimb7116]

Yes, agree

[@chiragnk602]

Really? How much energy do you think you can produce by blowing into the mouth piece? It will not even come close to producing as much energy as twice the amount of black powder would. What even.

[@maltesefalcon85]

@@chiragnk602 it would open up the valves giving a free route for the explosion

[@dreamboards1056]

They plugged the mouthpiece far better than a mouth would.

[@UnitSe7en]

The description reads: "Every so often the MythBusters draw conclusions that leave the fans seething" But in truth, they leave _everyone_ with an actual functioning brain and even a remote understanding of what experimental science is, seething, pretty much all the time.

[@designator7402]

It's mid-2000s entertainment on a limited budget, what can you do.

[@NACLGames]

No they don't. They leave people with actual functioning brains, who can fill in the blanks and understand the point of the experiments, as well as casual viewers who don't care and just want to see interesting nuts, bolts and explosions, all entertained. They leave people who have spent too long not seeing the sun, overly pedantic for the sake of sounding clever, and obsessed with irrelevant details, seething through and through. Not because the Mythbusters did anything wrong, but because it makes them feel better about themselves that they are "smarter" or more "expert" than them.

[@gabrielv.4358]

Experimental science is the BEST Science!