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Kevin, thank you so much, I am honored to have had the opportunity to work with you on this experiment! Can't pass up the chance to say, I had an absolute blast!
I guess you don’t want to lose your channel and or get blocked permanently… that would suck, damn guidelines… But must you redact absolutely EVERYTHING that’s important? I can understand some but all? It’s part of free speech… it’s the same kind of thing the Shulgins ran into when they released their books PiHKAL and then TiKHAL.
Kevin in 2015: "I poured molten aluminum into these wacky everyday items!" Kevin in 2022: "I made a makeshift hellfire ROCKET capable of reaching mach ~0.5 which can tear through a metal car door!" edit: in seeing all the responses, it makes me wonder: what DID he even make? a hellfire missile? cable rocket? mechanical rpg? knife boomy thingy? I guess we'll never have a good answer to this... rofl
its not ballsitic missile.. more like a "mechanical" rpg. aaaannddddd originally this is how the people of india used them where form arrived to europe around napoleonic war. and ofc the guy tired to sale it as own invention.
how to make rocket fuel first get sugar and put it in a heating pan and now you want to get potassium nitrate, mostly found in fertilizer put that in the mixture. make sure to keep the pan heated while stirring until it looks like a chocolate cake then you want to pour that into your tube of rocket fuel done! if you want a more efficient type of rocket fuel, get a heating pan and put rust powder and sugar inside mix until done. Please make sure you search up the required amount of each substance before doing so. 9:13 example of what can happen
@@theKashConnoisseur I checked my anarchist's cook book that I got put on a list for buying. no rockets, but it does explain how to make a bangalore torpedo
not sure why he bothered to make a big deal out of it, its just sugar and some nitrate or, less likely, chlorate. grant thompson made videos about this over a decade ago
I love how this channel has evolved from kid friendly fun videos to almost breaking geneva convention. Edit: I didn't expect to get so many likes xd. But I wanted to add that I genuinely love your videos Kevin, and I really hope you keep making them (:.
The fact that he put tomas the train's face on the rocket and played the theme song got me laughing so hard and then he played the intense base theme made me almost die laughing, and then to top it all tomas' face got literally welded to the front of the rocket. times that made me laugh: 9:07 9:15 10:12
I cannot look at this video the same now that I know what Kevin's missiles are being used for.. For some context: the Hellfire R9X missile (the missile mentioned in this video) is being deployed in Gaza where it is used in strikes against civilian targets. While supposedly less deadly than explosive munitions, the R9X can decapitate victims while also dealing kinetic damage... granting us the timeline where a young child breaks out into tears detailing how he carried a decapitated corpse from a struck hospital.
I share your feeling. I couldn't bring myself to watch the video that showed the horrific results of this weapon when it made the rounds on Twitter recently. But I had to think of this video and its kinda "innocence"
@Steamed_Ham17 65% potassium nitrate, 35% sugar. Mix with water, slowly boil off the water in a pan. Pour the mixture into tube before it hardens. Don't touch it because it is very hot and also sticky.
I feel like this is a great companion to Mark Rober's latest video where he realizes that he's basically making an ICBM terminal guidance system and maybe that's why none of his NASA contacts want to help with it.
What you called the center support on the door is actually what is called an intrusion beam. These beams are made of at least high strength steel, and I think some cars use ultra high strength steel. The intrusion beam is the main structural strength for doors to protect passengers from severe side impacts. That was impressive to see the knives actually cut through it. I thought for sure the knife was just going to shatter when it hit the intrusion beam but it sliced through it like butter.
@@jonathanrosskamp324 I would bet the force per square inch is significantly higher over the much much smaller surface area of the impact, coupled with the cutting effect of the edges, pretty easy to guess the knife rocket would go through it.
You could torch the blade's spine red hot till a magnet won't stick then air cool and it will be softer to soak-up the shock. Also the same treatment works to soften a small area of hardened steel so you can drill it if it is too hard for your bits. I've got stuff that shrugs carbide unless you take some temper out. Diferential hardening for shock is the same reason why an ax is soft except for an edge that's a different metal slotted in. That and durability from a hardened edge.
@@jmathews470 AR 500 isn't impressive in terms of hardness but it has a higher tensile strength, you need carbon content to achieve hardness and ar500 dosn't have enough of it
@@gunners4129 Metal Tempering Tempering is done to develop the required combination of hardness, strength and toughness or to relieve the brittleness of fully hardened steels. Steels are never used in the as quenched condition. The combination of quenching and tempering is important to make tough parts. This treatment follows a quenching or air cooling operation. Tempering is generally considered effective in relieving stresses induced by quenching in addition to lowering hardness to within a specified range, or meeting certain mechanical property requirements. Tempering is the process of reheating the steel at a relatively low temperature leading to precipitation and spheroidization of the carbides present in the microstructure. The tempering temperature and times are generally controlled to produce the final properties required of the steel. The result is a component with the appropriate combination of hardness, strength and toughness for the intended application. Tempering is also effective in relieving the stresses induced by quenching.
Pretty sure at the speeds the rocket are going you don't even really need much of a sharp blade, just take any preferred type/thickness of steel blanks and cut the "blades" out. Store bought knives just look cool and make good video.
The masonry bit trick is SO USEFULL. The thin string holding the cable is super ingenious. The six-knife'ed rocket tips look so porking menacing. The car door hit was.. *cheffs kiss*. The drone shot of the propane tanks.. wow. The fridge shot... beautiful. Finishing off with one of rockets tips as a tesla coil topload playing Coffin Dance? dude.. Kevin. You, William Osman, Allen Pan, Nile Rainbow™, Peter Sripol and all the other awesome people on there are my favorite RU-vidrs. The quality of the videos you guys make are off the chuggin' charts.
You take Florida Man to a whole new level brother. Setting the bar higher, and throwing the curb for the rest of us. And I just want to say thank you!!
Im going to disagree solely based on the fact that kevin wont let you have your weapons until hes finished and they are just right...even if the z's are banging the door. (but the Kev will hit the button and 37 microwave magnetrons driven by garbage can sized capacitors, strategically lining the foyer will assist the Z's in heatedly departing or turning to ash..
I'd pick all of those guys plus a few veterinarians. Those mad lads are trained to deal with "uncooperative patients" who may bite as well as have top tier improvisation skills during a surgery or something, since their patients dont always have an anatomy that's as well studied as human anatomy. Not to mention they always have their tools and such with them in their trunk so they can bring the hospital right to their patient if they can't bring the patient to the hospital
Frankly, at this point I'm surprised Homeland Security don't have a handler who knows you by name and starts every call with "Kevin, we need to have a chat about your latest video". Also, this video is basically a list of reasons for _exactly why the military thought your idea was worth stealing_
You need to check out Veritasium's last video. Egg drop from space. His original plan got nixed cause a NASA scientist informed him "Uhh, that is basically a ballistic missile guidance system, I can't help you with that. It was like 90% done and in testing.
1:50 Math correction: assuming constant acceleration, the end / max speed was 988 km/h, i.e. x2 higher than 494. Compute acceleration "a" using x=0.5*a*t^2 and substitute it into v=a*t=2*x/t=274m/s=987.552km/h. Almost speed of sound.
The Thomas the tank engine gag had me dying! Great video dude. You’re doing the stuff that I’m too afraid to do for the sake of my life and well being, and it’s epic. (Edit: tank engine not train engine. :)
an "ordinance" is a law/bylaw usually enforced by some sort of regulatory agency. "ordnance" is the word you meant to use, which refers to explosives/bombs and the like. simple mistake, very commonly made.
God i love how he went from a perfectly sane science man in his early days to a mad scientist who’s gone completely insane, god do i love this man lmao
I’m not saying it’s not awesome. Loved this. But military grade missiles? It’s a rocket that needs a cable that failed half the time. Again loved it. But huge difference.
Isn’t that what the government procurement office does? Lowest bidder and all. The vendor makes their money during cost overruns. Ha. @@jamielonsdale3018
The way Thomas The Tank Engine's face became embedded into the missile after impact is haunting. Imagine finding spent missile cartridges in a war zone with Thomas's face on them...
That was awesome. I am honestly surprised the knife was able to cut through so many things even the framework of the car door, that's quite impressive. Shows how much power was behind those rocket motors.
That Thomas the Tank Engine rocket was the funniest thing I've seen in a while. I know it was a ton of work, but I really appreciate how you just showed all the good stuff. Great video man.
This is actually a perfectly illustrative experience of what the difference between a rocket and a missile is. Lockheed made a knife missile. You made a knife rocket.
@@tonywood3660 I'm going to pretend you weren't making a joke and just misunderstood, because it would give me an excuse to elaborate. Missiles are guided, rockets aren't. Most of the issues BYS had were indicative of rockets, i.e. struggling to coax it into hitting the target without issue. His actual rocket engine performed great.
Funnily enough: there _IS_ already a 'knife missile' out there. It's called the Ginsu missile and what was used to kill Osama Bin Laden/ another terrorist