Trebuchet Throwing Balls of Fire ///. Homemade Science with Bruce Yeany
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- เผยแพร่เมื่อ 5 พ.ย. 2019
- The ancient trebuchet was a massive weapon that was most commonly thought of as throwing boulders at the walls of a castle under siege. However, it is also believed that it was used to also throw other materials as well. One of the favorite themes in movies have portrayed them as throwing fire over the castle walls, or towards the enemy encampments. In modern times the trebuchet has recently become a source of entertainment in the form of tossing pumpkins held during annual competitions. It was in this format that we build our large trebuchet and have managed to throw quite a few pumpkins in the 550-600 foot range. However, ever since we build it, we've always had the desire to fling flaming projectile across the sky. With an upcoming visit from Steve Spangler and the DIY SCI crew coming to film a few programs for his tv show, it was decided now is the time to do it. This video is the result of our test flights in preparation for that visit. The show's recording can still be seen on Steve Spangler's. DIY SCI program shown on the Fox channel, Hulu, Amazon or any other media that hosts his reruns. The two episodes shot at my house are part of season 3, shows titles are geek garage.
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love the sound it makes sailing through the sky
Combine this with abcient whistling arrow tech and you'd get hell howls
I was going to post the same comment.
Imagine this shit in the middle of the night while you’re under siege in your castle lmao
sorry to be so off topic but does anybody know a trick to log back into an Instagram account..?
I stupidly lost the account password. I would appreciate any help you can offer me.
@Kristopher Gunnar instablaster ;)
Bruce then - Make funny physics experiments with recycled Toilet Paper Roll and a Straw.
Bruce now - *Slay your enemies at a distance with 80 lbs of Rock and Fire at 70 mph*
MindGame Arcade this was the type of comment I was looking for
The sound was amazing. I can only imagine what the sound was like when they used them in a war to bombard a castle. The sound if it flying, so loud. Cool video. Thank you.
Prof teaching kids how to annihilate their enemies from afar. Great as always prof!!
thanks Dr. Naz
I see a counterweight used to launch a 90 kg projectile over 300 meters and I hit like.
Pretty sure the projectile was maybe 9 pounds not kilos. And he said 250 feet, which is 76 meters so... Bad ass video non the less though.
Brian Fisher It's a trebuchet memes thing, don't worry about it :)
@@stykytte must not be a very popular meme lol
You must not be a man of culture.
@@stykytte oh I am cultured, you trebuchet meme lords need to step your game up. The new Witcher trailer has a bad ass trebuchet at the end and I haven't seen a single meme yet. I mean come on man, not even one?
You built trebuchets in class? I feel like I’ve been robbed
I built one out of paper clips in my 6th grade World Cultures class of all places. Never in physics though ;(
I've always believed that science should be taught in a hands on classroom, we did quite a few projects and activities in my room. If you look through my videos you can find several of the activities that we tried.
We did this in my high school physics class as well. Our projectile was a basketball.
Unfortunately subsequent classes only got to build scale models for throwing marshmallows indoors.
Better than feeling like you have been sieged, if your class had the misfortune of being on the other end of the trebuchet.
I like how he stresses the need for safety measures, but implicitly totally encourage kids to build trebuchets if they have adult supervision =D.
It seems that trebuchet was a funny thing back in the days, because everyone is laughing when projectile hits ;)
I would guess only the people throwing were laughing, not the folks getting thrown at
Wow, extremely impressive! The sound that the fireballs make is very intimidating!
This is one of the best things I've ever seen.
The sound that makes before projectile smashes to the ground is amazing
The guy that waited for the flaming log in the dark next to the woods which are also very dark, has some balls made of *TITANIUM*
Age of Empires! XD
You were truly a great teacher. One of the few that stuck with me. Good to see you doing good Mr.Yeany.
thank you, I had knee surgery on both knees and now feel better than I have for the last several years.
@@YeanyScience Awwww. Sleep at last.
Trebuchets were one of my favorite science/history lessons.
The Doppler shift on the incoming rounds was brilliant! Next time let's see some different coloured fire!
listen to that fire ROAR through the night sky .... ahhh.. beautiful lol
even better in person
Trebuchet is my weapon of choice too. The whole mechanism is fascinating, and the ease it throws almost any object where ever it is aimed at, leaves me in awe every time. No violence, like in cannon or other explosive thrust weapon. No loud noises, no smoke, unless the ammo itself is on fire, just a necessity to move.
woah! those time-lapse images are beautiful!
The sounds the flaming shots make are just amazing
That was AWESOME!!
Wow, that doppler effect causes a really awesome sound effect on the sound coming from the fireblocks!
the video captures it better than I thought it would, but it was even better in person
Fantastic stuff Bruce - thanks!
Looks like great fun.
4:48 chemistry research complete
Meteoric! Nice work Bruce.
The Night King
“I will destroy humanity”
Bruce
“Hold my beer”
That was AWESOMEEEE
That’s so cool, thanks for sharing Bruce 👍
Goodness gracious, great balls of fire!
Feeling nervous but it sure is fun
I love your trebuchet & trailer combination! Very smart!
love the pics
That was awesome!,
The whooshing sound is so awesome.
sounds even better in person
Awesome!!!
Good job I like watching
Totally killer video! I love how the sound by the block on fire going down the range sounds totally like an jet plane or a rocket. :-O
Goodness, gracious.
That is so cool
The sound is amazing.
thanks, it's even better in person
That's a coolest thing ever
Awesome
I'd also love to see a parachute system made for the projectile. That would surely be difficult but rewarding! If you could do that to something on fire, you'd have a low tech flare!
fantastic
Impressive machinery, it's beautiful how well they launch things. The burning logs had a pretty awesome sound going through the air, very cool 😁
It took throwing things to a whole new level, amazing to watch
That's a beautiful place where you are living.
Holy moly! :)
Those long exposure photos are great!!
I wish I could have taken them from a better angle but the space didn't allow it from the side. I'm thinking of trying it with a smaller trebuchet
Best, Toy, EVER :D
Cheers!
I.
I hope his neighbors have been nice to him 😎
I'd love to see this 10× the scale.
Hi Bruce, so very to see you moving like a 14 year old again. You really faced those surgeries head on and I commend your hard work at recovery. Thanks for the video and again, very happy your health is back!
thank you, not quite as good as a 14 year old but it's still feels awesome to be able to move without painkillers
@@YeanyScience I hope you feel as great as you look!
So beautiful I almost cried.
Now go lay siege on the next town! 😈
When the fire ball is being slung the sound is even more couragious than a plane whip
No wonder with all those forest fires started latley,..just some randoms trying out the dark-ages war zone methods, when all of electricity can't be suplied to humanity no more
Dude, that soud when it goes flying!
sounds even better live
I have fond memories of my science teacher, he was very similar to yourself he loved science and he loved teaching it. I now like to do experiments with my daughter (11) at home from your examples though I might skip this one, my daughter on the other hand would have no such qualms. lol
Teşekkürler
I think if You, Rodalco2007 and Big Clive got together, it would be a dangerous trio !!
It's a good thing they're not Hollow and filled with very flammable concoctions!
true, that would have made the demonstration way too dangerous, the chances of it breaking on the machine or setting the woods on fire was too much of a risk
Formidable way to complete a castle siege--thumbs up! Did I hear George laughing in the background?
George was having a good time with this, it was more fun than throwing pumpkins.
Honestly, it would look amazing from afar, like from a hilltop.
Would highly recommend watching tom Stanton's "wheels on a trebuchet" on optomising a trebuchet by letting the wheels roll freely both directions. Got a 9% increase in efficiency after some tuning and he did some fun calculations.
thanks for suggesting the video. Funny that you should mention the wheels, that was one of the ways we adjust how far throw, if we are aiming for a target and we want the projectile to not go quite as far, we block the wheels to keep the base from moving.
@@YeanyScience Nifty. Amazing how consistent the trebuchet is! Great video by the way.
Can you please provide a link for the bar you bought for the fulcrum? I’m trying to make one that would withstand like 800lb. That would be great thank you!!!
It's good to see you're having fun. :)
I am building a 10 foot Trebuchet. The counterweight is going to have 1000 pounds. But I have a question? Should the box be round? Or can I make it a rectangular box? I would need to do more welding for the counterweight box if it were to have a round bottom, But can I simply make it a rectangle or will that put too much stress on the trebuchet when the load falls? Or will it be ultimately the same for both?
How to keep neighbors in check
Yo umm have you made a video on how to build a mini one?
That sound.
Australian fire, behind the scene
u really love this aksjak i want a catapult 😢
Imagine lighting a giant campfire with this
holy shit I got scard at 5:20 myself while watching.. Can't imagine what people felt in medieval ages...
This is what Bruce Yeany thinks backyard plinking is.
Medieval artillery
I have one about that size but I have the problem of the trebuchet tipping with just 150 pounds of counterweight . What do you use for your counterweight? Also how tall is it and how long is the arm.
We do have another video on it, th-cam.com/video/qC6RJxFEMfY/w-d-xo.html
we made our counter plates about 60 pounds each and when throwing for maximum distance drop about 1100 pounds as our counter weight. our support post top is about 11 feet high the arm is about 14 feet. my first question for you is do you have wheels on the machine, if not add them, it allows the machine to move forward instead of tipping
How about glow sticks?
Fire does have a special sound though.
also what is the ratio of your arm? please and thank you
r/Trebuchetmemes
What is there not to like about a good trebuchet
exactly my feelings also
I plan to build a motorized pontoon boat CataBuchet out of 2 1/2" schedule 80 pvc about 9 feet tall on our Intex Blue Island 6 person raft.
I would bet that your neighbors are overly polite to you in passing. Cheers!
How cool would it be to launch montolov coctel
No he arrojado mis bolas demasiado lejos, tengo varias vecinas relativamente cerca y ellas están bastante conformes con mi alcance!.
Said it before & I'll say it again.... really wish you would've been my science teacher! =)
Next step in ramping up - fill the jug with kerosene/gasoline & have the burning block duct taped to the outside.
We kicked that idea around, but if you watch a couple of the jugs were leaking as they flew, we have the idea that it would set the trebuchet on fire
Great video, I really admire your trebuchet, would you share some dimensions with me?
send me a request at bgoknee@comcast.net
Two applications for your trebuchet came to mind:
1. Contacting a Bang snaps or PopIts manufacturer and getting a huge one made. Hypotheses for what damage, effects and noise will occure if any at all.
2. A scaled down version with a calibrated rope attached to it's front to make a marshmallow launcher
Hi sir... how are you ..your legs seems to be fine...hope your keeping fine..
I really like this video keep Posting..!!!
I am feeling much better, nice to be able to walk and move without painkillers
@@YeanyScience good to hear this..!!!
I think it's projection angle should be 45° to get max distance
It is just flying in air rather than covering long distance
that is right, we actually wee trying for a larger angle to get it higher and not as far
Punkin Chunkin!
I find the trebuchet the best way to take out the trash. But my neighbor hates it.
love it, thanks
Be careful of fire！
Boy oh boy oh boy do I wish I had you as a teacher. You would have been my best favorite teacher ever in the whole world. I love making all these things that you make. I have made several trebuchet is in the past and also I have made several vacuum cannons as well as those high pressure cannons too. Last night I hooked them both together like you did on your recent video but I could only get my ping pong to go a little under six hundred miles an hour.I have never been able to get it to go supersonic, do you have any pointers for me. I have even hooked up not one but two of those lab grade vacuums to it and I still can't get it to go supersonic. I use those emergency blankets as my Mylar diaphragm. My high pressure air tube portion is quite a lot bigger than yours, about twice the size, would that slowed it down any?
Hi Steve, perhaps you can sent me a picture or two and I can get a better idea for recommendations. Some areas I'm looking at for improvement is a better release valve, and adding a constriction to increase the air flow speed
If you want to send pictures, send them to Bgoknee@comcast.net
@@YeanyScience ok you got it!😊 Thanks so very much! Give me a few days to sort it out so i can get it right for you to see clearly my set up. I want to get this right and achieve my goal. I would like to be able to go as fast as you did. Thanks again, I will be in touch.
I have to build me a trebuchet, for my kids I mean.....
Very interested! I think about this from over side and I have a question: is it weapon in USA? And if it's weapon, is it legal?
I don't know what it means in my country, but i must look now :)
Because if i built it in my yard, what police will be said?
the trebuchet was a weapon from the Middle Ages, not a modern day weapon and is not classified as one. In the USA they are popular in competitions, look up pumpkin chunking and you will find many examples. whether it's legal in your country may depend on how you use it.
We are building a trebuchet to teach a buddy’s kids about engineering and physics. Would you be willing to share the plans for yours?
HI Ben, I'm sorry but we don't have plans for it. We started by building a lot of smaller ones, gradually making them larger and worked our way up. After learning the basics we eventually we looked at the materials we had available and designed a 1/10 scale model and copied that 10 times bigger
Imagine how the Scots felt watching Edward I 's trebuchets firing at their castles.
Can you explain how you can have gas pressure without a container ?
Gravity!!!
@@kleinjahr gravity does what ? Or can you show gravity maintaining gas pressure ?
@@jamesharland5137 reference desertphile. Also take a course in basic physics and do some real research.
@@kleinjahr erm quite defensive why dont you do some research arrogant pleb ... gravity you say .... gravity does not contain gas pressure you ignorant arrogant clown ... there is not one example of this anywhere prick... now dial that tone back sir... infact as youve highlighted your own arrogant ignorance what is your definition of gravity anyway ?
@@kleinjahr rude ignorant and a coward
This rocks!!! Next time thermite? :)
Hi Erik, thermite you say? we did have a blast throwing the fire, it will be hard to go back to non flammables after this
The gallon plastic bottles were the right idea. Gasoline and a lit rag.
All that's missing is his wife's reaction..
Ils sont inconsiant de tester le trébuchet qui lance des projectiles enflammés juste devant une forêt!!