Go to kiwico.com/backyard to get your first month of KiwiCo free!
Safety Third Podcast - / @safetythird
discord- / discord
Twitter - / chemicalkevy
Instagram - / backyardscientistofficial
Go to kiwico.com/backyard to get your first month of KiwiCo free!
Safety Third Podcast - / @safetythird
discord- / discord
Twitter - / chemicalkevy
Instagram - / backyardscientistofficial
This man is determined to get on every scary three letter government agency list, isn't he?
Honestly, respect
He's on thier speed dial. And they don't even need Google maps when they visit now.
Your statement assumes he isn't already. He built a vehicle mounted laser weapon, for crying out loud.
I know my agent isnt looking at me.
and the aarp
I love how you've gone from making cool sugar rockets to casually conducting drone strikes in someone's backyard
The refrigerator needed to pay for its war crimes
hence the name, backyard scientist
@@TheNamesArif Ok so the name was accurate for the starting point - does that mean that he should now change it to "backyard weapons manufacturer"?
Backyard military industrial complex BMIC
@50 person account experiment backyard lockmart
I love the chaotic energy he gave out at the start of the video. "Well, guess what? I can make my own and its TWICE as dangerous!"
He still was underestimating the rockets power😂
xd
FBI agent 1: "Should we... should we intervene this guy?" FBI agent 2: "No, no, no we can use this."
FBI agent: "Should we... should we intervene this guy?" CIA agent: "No, no, no we can use this." Fixed.
@@user-ki4ms5jg7r Eh the original was better
@@Beastgamer-YTRP Why? FBI didn't used it yet. But CIA - do did!
I laughed so hard at the line, "Guess what, rocket nerds! I figured out how to make my own rocket fuel, and it's twice as dangerous."
He is very right on that point highenergy rockets can be very dangerous...
@@davidnoland2574 sugar-saltpeter is pretty benign. Put it in a tube with a small opening and you have a relatively safe rocket. ¯\_(ツ)_/¯
@@crapple5759 Next step is using ammonium perchlorate as your oxidizer and you get this.
@@crapple5759 I think the rocket has aluminium and perchlorate and maybe more of things?
@@crapple5759 aniline + nitric acid is a pretty decent one
I love how you can transfer from making borderline explosives to bladed rockets to a subscription service for teaching stem to kids in like 8 minutes
Florida man in a nutshell
@@gn6691 Florida gentleman
what do you think stem is?
How else are kids going to learn they want to melt-cast explosives so they can build supersonic flying knife missiles?
+the casket dance meme at the end
"this morning I woke up, went to the bathroom, and got out of bed" is hilarious
Kevin: Proves his rocket will go clear through a car door Also Kevin: Continues to use a car as cover from his rocket
There could be a problem.
@@I.Reckon Rocket: "Reverses" Kevin: "This will work right?" That will be his tombstone quote lol
Ok honey, I’m going to the store, need anything? - unlocks car WHOOOOOSH…SMASH 😮
through his head to the us military "hmmm whats this"@@Aquamissle
The sequel we’ve needed for so very very long
Technically its a threequel
Yes
From knife rocket to sextuple knife rocket to Thomas the armor piercing rocket
"Next week" finally arrived
Massive congratulations on figuring out how to make your own rockets, dude. And thanks for showing us why you need a license to buy them!
Such a shame he had to censor it 👉👈
@@ryleyallen185 If only it was Google-able... 🤔
So you have to pour *rocket fuel* into *cardboard*
@@theKashConnoisseur "remove the meatballs from the oven" 😅
@@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
10:10 thomas' face being welded to the front of the rocket is amazingly good
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
… there’s a reason why Kevin blurred it
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!
👍
Thanks for helping make the video happen!
@@N279 I
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.
@@silentracer911its so people dont try to figure it out what he made
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
This comment should be pinned at the top, LoL I was in stitches.
A BLADED makeshift ballistic missile
damn your comment was so funny you even got Naomi in stitches.
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.
The name "ballistic missile" kinda gives you a huge hint what the trajectory of such missile is....
you're definitely on a government watchlist now if you weren't already lol
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 (:.
It’s not like Kevin signed it so who cares?
This is the evolutionary arc of most channels. Eventually they will be showing how to make VX on cocomelon.
Already broke the geneva conventions with exploding bullets lol
It’s more of a Geneva checklist now
underrated
Gotta love it when Kevin starts the video by explaining how legal bombs are boring, then proceeds to make his own bomb that's twice as strong.
Why hit the teddy bear
6:39 TARGET LOCKED, INITIATING EXTERMINATION PROTOCOL
10x as strong
I want to know how to look up how to make rocket fuel without ending up on a list now
@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.
This isn't a rocket knife, this is a whole unmarked assassination weapon
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 love watching Kevin casually make Military Grade Weapons
Average day in Florida. He should get some help from Nile
US becareful..one of these days I think he has high potential to be recruited by the middle Eastern countries !
They aren't militarily-useful until they can be aimed in a useful fashion.
@@garrettkajmowicz h-hey, are you supposed to be working here? Why are you tying that cable up in my office?
Making them at 1/1,000,000th the price of the closest government weapons manufacturer bid too
I remember a couple years ago Kevin used to mess around with oobleck but now hes gone insane and is making military grade weapons lmao
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.
@@MrKeserian its the natural progression of science youtubers
@@roblowe2714 they start off as educational and then become weapons manufacturers
I blame Michael reeves
Michael Reeves is based
This man basically created his own version of the RX-9 hellfire missile
9:02 I can't wipe the smile from my face no matter how many times I watch this "very special rocket"
The rocket fuel explanation was genuinely brilliant comedy, love your work.
Meatballs
@@foggycontacts3212 I agree.
@@foggycontacts3212 ong
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
@@retard1488 you mean rocket and fuel, right?
That drone shot over the back of the rocket as it hit the propane tanks was a cinematic masterpiece.
ikr
I love the excitement you have. Loved the video!!! That was awesome
one of your best videos!! really looks like strong good rockets
Kevin a few years ago : “Haha salt in water go boom” Kevin now : literally making loitering munitions in his backyard
"We're going to get arrested but we did it!"
In what way do they loiter? Seems to me that they just go straight to work.
not a loitering munition tho? nothing of it comes even close to it Just an unguided cable rocket
@@christopherwheeler688 ; They don't, the poster just used a word they picked up.
please learn what words mean before you use them
I love this guy’s passion. I just hope he makes it past 40.
He will
But with only one arm
@@theDude29 I'm sure he can be careful on his next video, right? Right? Hello?
Same
@@theDude29 dude will just make a new arm
Man, I love this video and your energy!
God this is one of the best videos I've seen on KZhead and forever. I would pay to watch this video. Awesome work!!
the rocket knife is one of my favorite things you’ve made, i’m happy to see you revisiting it :)
MythBusters did it first
@@bakarimims6384 and?
Check David Windestal's channel. He's got an amazing setup with a ton of cool vids.
Honestly. And like the US Military rocket is WAY too identical to have not been stolen
YOU
Anything moving away from you at that high a velocity has to be safe. I think this is some of Kevin's best work.
Bro the ricochet off the car door
Unless it has the ability to turn around.
@@RotGodKing gotta make it a little frightening to be exciting
@@ratchetandchank8648 That flew really high into the air as well, looked like the rocket was still firing, that must have gone far
i don't think want to be at the back end of an RPG, or any rocket
my jaw dropped when I saw just how fast those rockets flew down the line. Absolutely insane feat of engineering
That intro 🤣 so you went to the bathroom then got out of bed 😭
After 4 months of watching I Did a Thing, its nice to come back to Kevin and see him do things properly and safely
Better engineering too
Not to mention Kevin's not a shithead
@@C.Mc. idat's first channel was a political channel. The dude went to north Korea to get a haircut.
@@C.Mc. "opened his mouth and inserted his foot" i am sorry what video is it? Or you mean his political opinion?
@@C.Mc. yeah i never really got why he was even a smidge popular, he has boring execution, and is just weird in his videos etc
Kevin is why we have safety labels on stuff
Send this person to Ukraine
He’s the reason we need to tell people how shampoo works but knowing him he would find a way to make it dangerous somehow
He's likely the reason there's instructions on toilet paper
@@Stanfordscienceman he would likely turn it into a paste that will ignite if it comes in contact with water somehow
So he instantly knows which should be broken?
scary, but totally worth it... Fantastic show, well done dudes
The thomas shot was so beautiful. This is art.
During an apocalypse Kevin is that one person you'd want on your team
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..
Him and Colin Furze, you'd be set for life.
also styropyro
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
He’s the Professor from Gilligan’s Island.
Never stop being the most Florida man of them all! Was excited for this since you talked about it on Safety Third!
The best Florida man
fun speed saftey
the other florida men walked so he could run
Which episode?
@@jayasuriyas2604 like the last three ive mention it haha. Wills been teasing me about how i keep saying "this week for sure!!"
Ive seen these rockets in action in real life and theyre something else. They are SO precise and accurate.
Nice One,Rocket man! Well done! Greetings from Montreal.
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!!
What does "throwing the curb" mean?
I'm a Floridian and I worship him lol
@@MrEazyE357 probally meant curve
The kinetic energy generated by those rockets is insane! You are on a list for sure.
Hiring list
You're*
*yer
@@cheisz5094 🤓
@@cheisz5094 You can still use *You Are* together. As in, you are a virgin.
I hope you are a science teacher somewhere, your ability to make science interesting, and to show your fun in it is catching.
I have never felt as serene and as terrified as when watching this video.
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.
@@simmonsjoe Mark Rober*
@@simmonsjoethat was mark rober
@@simmonsjoe that was Mark Rober
Wait who was it again? I don’t think I’ve heard it enough yet
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.
Most cars less than 400mph
wow that is incredible, thanks for that info!
@@BrazilianPegging most cars heavier than knives
@@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.
Velocitas eradico!
This was SO fkn AWESOME! SO satisfying!
the filing on this was epic. well done sir!
I like how kevin just casually made a highly lethal tank buster and then dipped
*remade a highly lethal personnel deleter. The R9X isn’t for hard targets. It’s meant for assassinations with minimal collateral damage.
Thomas the anti persons missile
@@ericajimenez741 That was a very funny part of it.
Stand behind blast shield
I like how he was surprised the military stole his idea
This video already proved Kevin's sharp wit with all the cutting-edge tech, but Thomas practically killed me.
💀 no comment
@@thatonegoogleuser4144 One right there
He made Thomas the Anti-tank Engine.
@@CyanicCore no worries, reported as misinformation.
Sorry I'm allergic to puns and dad jokes.
you know knives are dangerous you know rockets are dangerous Kevin: i woke up and ask the FBI to recruit me
I'm rewatching this whole video after a year because A. It's comedic genius and B. I needed to see the Thomas rocket scene again
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. :)
Thomas has seen everything, it's time for you to go
If you want too watch it again: kzhead.infoUgkxzHOsuX1F_nZSnunySzAJEFWaFz4T_592
i kan see the memes
It’s Thomas the thermonuclear bomb
My first thought was rip headphone users
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 KZheadrs. The quality of the videos you guys make are off the chuggin' charts.
I'm not even Kevin and you made my balls blush.
Woah woah woah. Don’t forget I Did a Thing
@@andruucspr7466 I DID. He's one of my favorites too! He's made some awesome videos and things too!
Colin Furze is pretty insane too
wowza
The fact that somebody beat the CIA and Lock-Mart to creating a missile-sword in his backyard is both hilarious and the most American thing ever.
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
Lesson learned, never mess with a neighbour that knows rocket science
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
hes a florida man....
It is an honor to be launched by Kevin
See, when I saw it, I was thinking Thomas the Tankbuster 😂
@@Ragnarok0312 No it’s Thomas the tankfucker
Thomas the shank-engine
7&8 rockets before take off 🫡
Thank you for your sacrifice.
Thomas' face on that one is a perfect souvenir!
Thanks for the carbide drill tip
10:00 Damn the rocket even cut that tree
"Today I woke up, went to the bathroom, and got out of bed" Underrated part of the video 😂
Yea I caught that too 😂, wake up get out of bed than go to the bathroom. 😂
So true 🤣🤣🤣🤣
That one had me rollin! The look on his face was hilarious. 🤣🤣🤣
Bro thomas's face being welded to that rocket face IS INSANE!!!!
Dude you're a super engineer genius. Wow I'm so impressed
I can only imagine what you would be able to achieve if you and the channel Ordinance Lab joined forces.
and 'i did a thing' be he is just reckless
@@TheI_OOT and a tosser
@@TheI_OOTwhat about action lab.... he would probably make a earth vacuum and suck out all air on earth
Best collaboration suggestion I've seen, all these science channels could create a truly spectacular display
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.
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.
Yeah like AR500.....
@@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
Wouldnt this work harden it and make it more brittle? I mean it's literally spreading the molecules out to make the metal less dense.
@@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.
Imagine this a robber break into ur home and they see Kevin just sitting with this rocker to his side 😂
He's not an old man yet!
You've made the basis of a very hush hush black project weapon way to go! Glad to see your still alive lol
now we need this and Mark's precision-guided missile combined
I don't think how-to videos for terrorists is a good strategy.
@WhiteNorth Terry’s like the spread of an ied so anything in the homing category is too fancy lol
That would be highly illegal
@@WhiteNorth I'm actually a wanted terrorist in Syria and I'm watching this.
mark who
Can you imagine how awkward it was to buy this many knives? The cashier was probably really concerned.
Lol true but he can say he is a chef and will be opening up his new restaurant venture
Kevin probably became a regular at his local Walmart after how many knives he bought lmao
with good reason for the concern
he got them online
@@cheesy1224 even better way without being asked too many questions lol
Imma keep it real with you bro, you're on hella watch lists.
Not 3.5 seconds in and there was an amazing joke that made me die laughing
You're not the only one who (wet) spotted that.
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...
We do, we have Pickle Hellfire Rick
Psychological Warfare
10:12
It's that Skyrim mod brought to life
@@cidlunius1076 my god, you're right! 😂
The first 2 minutes alone is incredibly dubiously legal at best. I love this channel
The spinning propane tank at 11:55 is my favorite part!
He’s the worlds most dangerous and wanted man 😂 😂 😂
With Mark building a predator missile, and now this, I did not realize we were entering into the "KZheadrs recreate weapons of war for fun" Era
Who’s mark
@@teopalafox Mark Rober
@@donutplays9124 oh yeah, the egg video
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.
Thomas the Rocket Engine
@@Darkhunter190able omg so true 💀
Exactly lmao 🤣
Thomas the Tank Buster
@@astranix0198 OMFG this is criminally underrated.
Dude this could be your new aluminum! Think of all the things you can explode with this mixture. Rocket into aluminum volcano? Bullet vs rocket? Molten aluminum vs rocket? With a high speed camera the possibilities are endless!
The censored explanation of creating rocket fuel had me laughing out loud
*“I went to the bathroom then got out of bed”* *respect*
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.
One cost millions, the other bugger all. Hey Kev... ever thought of a new business model, save US taxpayers heaps....
@@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.
I feel like this is slightly targeted...
@@koneeche like a missile!
One of these knows where it is because it knows where it isn't, the other has no clue where it is and needs paracord to guide it.
I think I've only watched like three of this guy's videos, but he always manages to almost make a bomb in the first few minutes, so that's fun
This guy's on another universe. Bravo
He went from making melted salt blow up in an aquarium to creating military grade missiles. Amazing.
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.
@@chrisdef15Military grade: Barely works, built by the lowest bidder with an _almost_ reasonable delay.
Isn’t that what the government procurement office does? Lowest bidder and all. The vendor makes their money during cost overruns. Ha. @@jamielonsdale3018
You mean Hamas grade... Lol
One of those whom worked on your kitchen meanwhile You are esting with your family and youll se if they are Mily ir not XD
My daily dose of danger!!
Well it's not daily, it's more by annually
@@fernandoqueirozpopovic7024 I was gonna say ..
@@ieatgreenfleas dam it so was I
this is one of those guys that you need as a friend in the apocalypse
unbelievable, the speed of those rockets and the impact damage
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.
It’s amazing what a couple hundred miles per hour can do.
@@SeventhGod77 exactly...velocity cubed....have you seen the 500mph pingpong ball that goes through a pong paddle, destroying it
Mixed with speed a lot of things might penetrate mostly everything I think?
At the speed they were going it starts to become less cutting and more crushing its way through whatever is in its path
Duuuuude that was insanly awesome! Spinn-forging the nozzles was absolutely brilliant. You are the true king of Rocket Knife
thank you for always giving florida a good rep
love the tesla coil at the end! big respect ⚡⚡
This man is an absolute legend, bringing a nostalgic show into the picture, and also playing the coffin dance for all those lost rockets man. Absolutely phenomenal
Most videos like this are either misleading, or not _thaaaaaat_ interesting. But *this.* It's even naturally faced paced, where other shmucks make smash cuts to hijack 12 year Olds dopamine system, to make a cash grab. It takes a lot of intelligence and craftsmanship to do this. But the end product is comedic and exciting in the sane vein as a Jackass skit.
9:16 in britain we call this "thomas the shank engine"
Of course
Thomas, Thermonuclear Bomb
9:15
9:27
9:15 - 9:27
This plus the slow o guys would be amazing.
How the military hasnt tried to reccruit you is beyond me. Youd be so so valuable ,coming up with new and innovative ways to protect the country.
12:30 - the propane tank spinning right towards the camera - amazing!! This is one of your best all time!! 🔥🔥🔥