I show how layers of stretched rubber can apply quite high pressure. Help me make videos by donating here: / codyslab Follow me on Facebook: / codydonreeder SubReddit: / codyslab Twitter: / codyslab
Being an IT-person without any mechanical experience I never thought about using the incompressability of water as a tool for testing pressure systems, thanks 👌😎
I've done pressure tests on mud-tanks on ships, 20 atmospheres of pure Nitrogen. Scary testing, butt puckered when we were checking the hatches and seams for leaks.
I think most of the time involved in producing a video is in the parts that are off-camera, though, like planning, editing, and so on.. so I don't think on-camera time is a good indicator of the actual time spent
I calculate that it will require 1.5e32 or so 1 g rubber bands to initiate fusion. Of course, you don't need to bother stretching them at this level. You could do it, but the pressure and heat would melt the ones beneath the surface, so you might as well just collect them in space and keep dumping more until it ignites somewhere around rubber band number 1.5e32 (0.075 solar masses) and forms a minimal mass red dwarf. If course, the metallicity will be different than most stars. The large amount of carbon might throw things off, but my reading suggests (I'm no expert) that higher metallicity means it will start fusing earlier, so maybe you don't need to buy *all* of the rubber bands at once. Maybe rather than jumping straight to 0.075 solar masses, you can approach in increments and give things a chance to settle and see if they ignite before adding the next increment. The good news is, of you keep adding mass, they ignite at some point. I do recommend that you stop before hitting 2.86e33 rubber bands (1.44 solar masses), though. Here you are approaching the Chandrasekhar limit and risk forming a type 1a supernova, which seems like a waste of perfectly good rubber bands.
@@chloehennessey6813 how do you know they're a boy? Are you always this sexist? I find the "boys (eyeroll)" joke horribly offensive, I cannot choose my gender so dont use it as a way to insult me.
This was actually a really interesting video. I love basic experiments like this, recently I discovered the fun passtime of taking valves out of inner tubes and pumping up soda bottles, the air heating up as it compressed and cooling as it decompressed is so simple yet so cool.
The friendly atmosphere in this thread appeals to me. It's proof that sometimes we can have nice things even when the pressure of the TH-cam comment section causes people to vent. Maybe if we're lucky those good vibes will leak out into the rest of TH-cam.
Cody one of the best things about this channel has always been watching you ask interesting questions and come up with experiments to get answers to them. Loved this video, not everything has to be a 6 month project with tons of effort and money.
I really hope he sees this. I'd love to buy a poster or something simply just to support one of the greatest content creators I've seen in over a decade
he can scan his chicken hole base with a 3d scanner, there's ones that make point clouds, that are then made to 3d models... Some more expensive models also add color!
Dude, If you ever feel demotivated or depressed, just remember that you are the one of the few channels who can get hundreds of thousands of views with non-clickbaity thumbnails and titles. You really have dedicated subscribers.
Back in day, golf balls were made with a liquid filled rubber center wrapped with rubber bands, it then was covered with the dimpled outer cover. The liquid center contained bacteria which would create pressure as they multiplied. Believe me I took a few apart!
Also, Cody, the environmental temperature is an important factor to the rubber's elasticity. So it may worth recording between experiments. The warmer it gets the more stretchy rubber gets. The wonderful thing is that there's a full set of model for this.
I've always been fascinated by the idea of a small amount of pressure added in increments but over a long period of time. This is pretty much exactly that. When I used to work in a warehouse, I'd wrap pallets of goods in plastic wrap by stretching it out as I went around the pallet. Imagining how much pressure was added to the contents with each revolution. I may have crumpled a few boxes :P
Hey cody! I haven’t stopped by your channel in a while but I prefer it that way so I can binge on your content and get my brain muscle back in shape! Hope all is well; health, family, and prosperity
In college, I made a decent sized rubber band ball, quite heavy, bigger than a basketball. The amount of bounce when you drop such a thing from an upper story window is impressive, and it makes a very satisfying thud. Eventually, though, the rubber does decay.
Reminds me of filling up a capacitor (or battery) with voltage (voltage=pressure / tension) at first it fills up quick, but the higher the voltage, the slower it fills. It's due to the voltage squared, related to the energy stored.
I was like "I hope Cody saws the ball of tape in half, it'd look cool kind of like the gold foil ball". Cody at end of video: Only saws into it partially I am genuinely amazed that I predicted Cody would saw into the ball of tape, I am very disappointed that he didn't saw it in half.
That reminds me, I used to fly kites with fishing line, If you wound the monofilament (with the tension from the kite) on the original plastic reel the accumulated inward pressure would often crush the reel
The effect where you needed to add a ton of bands to increase the pressure right before it burst could be down to the thing stressing and breaking... when you see a graph of pressure applied until things break there's always a tiny flat line or even a dip right before it actually breaks as it deforms
Have you ever thought about using freezing water acting on a carefully controlled volume of air to generate pressure? I've always wanted to see that used because as I understand it, the max pressure you can achieve is limited purely by the strength of the container.
At higher pressure water will freeze at lower temperatures, although at about 200MPa the phase diagram shows it ‘bottoms out’ - so it certainly isn’t limited purely by the strength of the container.
It'd be pretty cool to see that contraption sit for a week - most polymer materials experience creep, so if you could get a stable set up and do like a time lapse we could see the pressure drop as the material strain increases over time.
Even 25 PSI is almost two atmospheres. Which suggests that, in an emergency, you *could* improvise a mechanical counterpressure spacesuit out of either rubber bands or electrical tape, if you had a pressurized helmet with a good skintight interface.
Diminishing returns on layers is probably due to having to compress previous layers of rubber bands in addition to the water balloon at the center. The springiness goes both ways.
Haha, this looks fun. At a music festival we would wrap rubber bands around beer cans and offer to people, claiming it was meant to keep the beer cold but of course it was just meant to explode in their face.
You could use a small inner tube instead of a balloon so that way it won't leak. I liked the videos I'm happy to see you posting frequently. Keep up the good work.
Great job Cody’s next video will be making elastic band armour which would also be a cool video. I wonder how many elastic bands you would need to contain a small kaboom !!!!!!
I don't think that will work because of how this experiment was set up. The water is acting as the fluid to press upon the pressure gauge, once that portion freezes the gauge won't measure any more force. Maybe an oil floating on top with a low freezing point? That would be really interesting though
Water doesn't freeze top down unless it's frozen from the top down, i.e. a lake or river. It freezes from the outside in, unless agitated, in which case it would freeze all at once (in perfect conditions.) Ice floats but it requires perfect mobility, so if you froze it at a very specific pace you might see that top-down freezing. And the reason he used water in the first place was because air can be compressed, so at some point you no longer get an accurate reading of increases in pressure
Cody is the type of guy who would collect a year’s worth of his own earwax to make a candle and calculate the energy output.
Don't give him any ideas lol!
Please give him the idea. I want to test it myself since I would rather do that with my earwax than let another animal eat it.
I would not be surprised if that video is already in his catalog.
I imagine he reads this comment as a challenge rather than hyperbole
We are supposed to send our earwax where?
Band pressure is what musicians feel when they decide to break up
Get out
Why
@@orca984 no that was a classy joke, I think you need to get out.
just stop I can't take this
🤣
And this kids, is why you test pressure systems with water first. No explosive release.
Being an IT-person without any mechanical experience I never thought about using the incompressability of water as a tool for testing pressure systems, thanks 👌😎
Unless you are designing a pressure system for water, than you test with pressurized air first. To see if there are leaks.
Well if you ad enough rubber bands you ad so much elasticity that you can make it explode with just water
I've done pressure tests on mud-tanks on ships, 20 atmospheres of pure Nitrogen. Scary testing, butt puckered when we were checking the hatches and seams for leaks.
@Hopeful Interpretation 240 psi isn't that much. Carbon tanks like on air rifles are good for a few thousand pounds.
In your time-lapse you should add time so that people could understand how long you take in just making the video. Great work man
Cody has no life..only one person texted him and it was his mom.."Oh, I am just making a super pressure ball of rubber bands.." "That's nice dear.."
@@BrilliantDesignOnline Making a ball of rubber bands is a life, watching someone make a ball of rubber bands isn't
@@singingpianos6470 Got me. I have seen the light and will stop watching rubber band videos...later.
I think most of the time involved in producing a video is in the parts that are off-camera, though, like planning, editing, and so on.. so I don't think on-camera time is a good indicator of the actual time spent
@@BrilliantDesignOnline Do you by any chance have friends?
120 psi ~= 8.2 bar. Didn't expect that! Though I don't know what I was expecting..
cody: *wears safety gloves when working with rubber bands*
also cody: *drinks mercury*
Also Cody: **drinks cyanide**
also cody: uses acids to dissolve iron with bare hands. cody as well: gloves to do math, nothing else in the expiriment
@@dootslayer1402 safety is important
@@dootslayer1402 Some acids shouldn't have gloves used with them.
Any really strong oxidizer should not meet gloves either.
i wonder if this was just to make it hurt less when they snap
Mr owl... how many rubber bands does it take to make fusion in the center of a rubber band ball? 3?
LOL.. brilliant
Add a trillion more bands and create a diamond.
fusion..... Nice. I love it. Fusion balls.
The military's next investment black hole rubber band balls
I calculate that it will require 1.5e32 or so 1 g rubber bands to initiate fusion. Of course, you don't need to bother stretching them at this level. You could do it, but the pressure and heat would melt the ones beneath the surface, so you might as well just collect them in space and keep dumping more until it ignites somewhere around rubber band number 1.5e32 (0.075 solar masses) and forms a minimal mass red dwarf.
If course, the metallicity will be different than most stars. The large amount of carbon might throw things off, but my reading suggests (I'm no expert) that higher metallicity means it will start fusing earlier, so maybe you don't need to buy *all* of the rubber bands at once. Maybe rather than jumping straight to 0.075 solar masses, you can approach in increments and give things a chance to settle and see if they ignite before adding the next increment. The good news is, of you keep adding mass, they ignite at some point.
I do recommend that you stop before hitting 2.86e33 rubber bands (1.44 solar masses), though. Here you are approaching the Chandrasekhar limit and risk forming a type 1a supernova, which seems like a waste of perfectly good rubber bands.
I love how the bottle was labeled "Probably Water", in true Cody's Lab fashion
it could've said "Mostly water"
Labeling your liquids properly is a very important and life saving practice.
Cody: "Probably water"
Its midnight. Phone goes off.
*CODY'S LAB HAS UPLOADED A NEW VIDEO*
Howdy y'all
Howdy
Maxwell Are you a teenager?
Midnight for you too? Was just rewatching SAO with my family.
@@chloehennessey6813 why does that matter?
Master Beta To you it doesn’t matter. Because the question was asked of Maxwell.
Have a good day 👋
Cody: "I'm not patient". Also Cody: putting thousands of rubber bands around a balloon... and again ;-)
"I'm easily able to spread it with my fingers."
Round 2 of Quotes by Cody out of context
have you seen the one where he makes a skep for bees and covers it in manure with his bare hands?
Boys. 🙄. 😂
@@chloehennessey6813 how do you know they're a boy? Are you always this sexist? I find the "boys (eyeroll)" joke horribly offensive, I cannot choose my gender so dont use it as a way to insult me.
@@Axodus ...
@@Axodus I am, in fact, male
This was actually a really interesting video. I love basic experiments like this, recently I discovered the fun passtime of taking valves out of inner tubes and pumping up soda bottles, the air heating up as it compressed and cooling as it decompressed is so simple yet so cool.
“Probably water” LOL
Measuring the pressure inside a rubber band ball? That's a bit of a stretch!
So, 'roll the tape'.
(pressure mounts...)
Some of these puns seem forced.
I'm not good at gauging reactions, but you seem to have enjoyed them
The friendly atmosphere in this thread appeals to me. It's proof that sometimes we can have nice things even when the pressure of the TH-cam comment section causes people to vent. Maybe if we're lucky those good vibes will leak out into the rest of TH-cam.
@@doctorbobstone, I disagree.
🙃
Cody one of the best things about this channel has always been watching you ask interesting questions and come up with experiments to get answers to them. Loved this video, not everything has to be a 6 month project with tons of effort and money.
You should make a 3d printed model of chicken hole base
Love your videos!!
Ouuuuuu thats some good merch there! posters of the floor plan, and of course teeshirts with the chicken hole on it
I really hope he sees this. I'd love to buy a poster or something simply just to support one of the greatest content creators I've seen in over a decade
he can scan his chicken hole base with a 3d scanner, there's ones that make point clouds, that are then made to 3d models... Some more expensive models also add color!
He's got a drone right? Drone photogrammetry is a thing!
@Manuel Auditore Currently they're all crap and barely work. Fusion's 123D Capture worked WONDERS but they killed it. :/
Dude, If you ever feel demotivated or depressed, just remember that you are the one of the few channels who can get hundreds of thousands of views with non-clickbaity thumbnails and titles. You really have dedicated subscribers.
Glad to see your videos pop up more frequently again, I hope that's a sign of you doing better. Please take care of yourself mate.
Back in day, golf balls were made with a liquid filled rubber center wrapped with rubber bands, it then was covered with the dimpled outer cover. The liquid center contained bacteria which would create pressure as they multiplied. Believe me I took a few apart!
What a fun, random experiment! Thanks Cody!
This is actually something I thought about a long time ago very interesting dude
Great video as always Cody! Keep up the amazing content.
Great demonstration.
It's great to watch you go through the process.
Cody, I love this video! Glad to see you're working that curious muscle of yours again
Also, Cody, the environmental temperature is an important factor to the rubber's elasticity. So it may worth recording between experiments. The warmer it gets the more stretchy rubber gets. The wonderful thing is that there's a full set of model for this.
Would the rubber bands have enough strength to squeeze the brass pipe a noticeable amount ?
Cap the end and start putting the bands on the pipe.
"I how how layers of stretched rubber can apply quite high pressure. "
Thank you Cody, very cool!
Is it safe to say if you made a rubber band ball on someone's hand it would be very bad for them?
Thank you Cody! Just got notified from this
Fantastic practical video, that's crazy amounts of pressure created by simple materials!
im glad you spent several hours doing this. i hope youre doing well cody, keep making videos
I love how random yet brilliant your videos are!
I've always been fascinated by the idea of a small amount of pressure added in increments but over a long period of time. This is pretty much exactly that.
When I used to work in a warehouse, I'd wrap pallets of goods in plastic wrap by stretching it out as I went around the pallet. Imagining how much pressure was added to the contents with each revolution. I may have crumpled a few boxes :P
Hey cody! I haven’t stopped by your channel in a while but I prefer it that way so I can binge on your content and get my brain muscle back in shape! Hope all is well; health, family, and prosperity
It was nice to meet you at the state fair Cody
Brian L
Lucky!
I absolutely love how you'll post random videos like this. This is awesome.
In college, I made a decent sized rubber band ball, quite heavy, bigger than a basketball. The amount of bounce when you drop such a thing from an upper story window is impressive, and it makes a very satisfying thud. Eventually, though, the rubber does decay.
I was just looking for a new video from you earlier today/yesterday. Hell yeah.
Isn't that sort of like wire wrapped pressure tanks?
cool Cody! might I suggest using a hose clamp on the neck of the balloon next time to prevent leaks.
I think that might cause as many problems as it would solve, the tight metal band might create a pressure point and rupture
I had been wanting to see someone do this for so long. Thanks!
I hope you are doing well Cody. Everything is going to keep getting better, man.
I love these random cool experiments!
Absolutely genius demo!
Reminds me of filling up a capacitor (or battery) with voltage (voltage=pressure / tension) at first it fills up quick, but the higher the voltage, the slower it fills. It's due to the voltage squared, related to the energy stored.
I have casually wondered about this, but i never occured to me to devise a clever way to test it. thanks!
I was like "I hope Cody saws the ball of tape in half, it'd look cool kind of like the gold foil ball".
Cody at end of video: Only saws into it partially
I am genuinely amazed that I predicted Cody would saw into the ball of tape, I am very disappointed that he didn't saw it in half.
Bruh i had your profile picture as my wallpaper back in high school
@@ringsystemmusic Nice. I just graduated highschool.
I wasnt expecting a video to come out this late so it was like finding a crisp 5 dollar bill in your couch
Thanks Cody!
Cody out here answering the real questions
You make awesome videos man You deserve a medal!
Now that was a cool experiment! Completely random, yet totally fascinating.
Absolutely brilliant, another thriller.
Keep up the good videos, just binged your bee keeping videos. I’d love to see a hive at your mars habitat
That reminds me, I used to fly kites with fishing line, If you wound
the monofilament (with the tension from the kite) on the original plastic reel
the accumulated inward pressure would often crush the reel
Nobody:
Cody: let's wrap a f*cking ball for 10+ hours in rubber bands and calculate sh*t with it!
I LOVE THOSE VIDEOS!!!
I was hoping you to pierce that ball with something , glad you put it in the end.
Another fun video. Thank you
It was awesome to meet you at the fair last weekend!
That was a fun experiment, Cody. Loved it. =D
The effect where you needed to add a ton of bands to increase the pressure right before it burst could be down to the thing stressing and breaking... when you see a graph of pressure applied until things break there's always a tiny flat line or even a dip right before it actually breaks as it deforms
Keep em coming bud
Cody's Lab Answering the questions that we never knew we wanted the answers to.
Have you ever thought about using freezing water acting on a carefully controlled volume of air to generate pressure? I've always wanted to see that used because as I understand it, the max pressure you can achieve is limited purely by the strength of the container.
At higher pressure water will freeze at lower temperatures, although at about 200MPa the phase diagram shows it ‘bottoms out’ - so it certainly isn’t limited purely by the strength of the container.
This is some vintage Cody.
Holy crap man, you have so much patience.
Thank you cody very cool!
sleep can wait, I gotta watch Cody's new video!
It'd be pretty cool to see that contraption sit for a week - most polymer materials experience creep, so if you could get a stable set up and do like a time lapse we could see the pressure drop as the material strain increases over time.
cool experiment. Never thought about how much pressure is in those things
Cody: tastes mercury
Also Cody: wears gloves while working with rubber bands
Cody is a legend!
Why does that bottle say "probably water"? 😂😂😂
@@llamasking9618 and trace amounts of whoknowswhat making it unsuitable for human consumption. 🤓
Even 25 PSI is almost two atmospheres. Which suggests that, in an emergency, you *could* improvise a mechanical counterpressure spacesuit out of either rubber bands or electrical tape, if you had a pressurized helmet with a good skintight interface.
Love the content keep it up 👍
Diminishing returns on layers is probably due to having to compress previous layers of rubber bands in addition to the water balloon at the center. The springiness goes both ways.
Part of the cause for the diminishing returns is that the later rubber bands have to compress the ones from earlier, instead of just the water
Never thought I would say this! Cody has too much time on his hands.
Glad to see that you returned from Mars safely.
cody asking the real questions
Haha, this looks fun. At a music festival we would wrap rubber bands around beer cans and offer to people, claiming it was meant to keep the beer cold but of course it was just meant to explode in their face.
You could use a small inner tube instead of a balloon so that way it won't leak. I liked the videos I'm happy to see you posting frequently. Keep up the good work.
I love doing the outro with cody
Okey Cody, this is epic!
I think the gloves make this even more strangely sexual
Yes, there is a kinky rubber vibe going on here.
Agree
When are we having an update on your Carboniferous bottle?
Great job Cody’s next video will be making elastic band armour which would also be a cool video. I wonder how many elastic bands you would need to contain a small kaboom !!!!!!
The one day I'm constipated Cody makes this....thanks man
Hey Cody, a tip for water on wood: It's always best to go with the direction of the grain when using a towel or stuff like that.
Love the video bro !!!! :3
A load cell would avoid the water leakage problem and could be used for other purposes like custom made scales or force sensors.
Surprisingly fun to watch 😅
Shiny black PVC: ✅
Getting tightly bound: ✅
Cody made a gimp balloon.
The pressure exerted by heat shrink tubing would also be pretty interesting.
Do this test again but with a sealed container to see how much pressure ice exerts on its container as it forms
I don't think that will work because of how this experiment was set up. The water is acting as the fluid to press upon the pressure gauge, once that portion freezes the gauge won't measure any more force. Maybe an oil floating on top with a low freezing point? That would be really interesting though
@@skeetsmcgrew3282 just leave some air in the top of the container, that would change pressure as the air is compressed due to the ice expanding.
Since ice freezes from the top down shouldn't that part of the guage just be held upside down?
Water doesn't freeze top down unless it's frozen from the top down, i.e. a lake or river. It freezes from the outside in, unless agitated, in which case it would freeze all at once (in perfect conditions.) Ice floats but it requires perfect mobility, so if you froze it at a very specific pace you might see that top-down freezing. And the reason he used water in the first place was because air can be compressed, so at some point you no longer get an accurate reading of increases in pressure
So if it WAS frozen from the top down it could be possible?
*The diminishing returns is because as the ball gets bigger, you're squeezing rubber bands, instead of the balloon.*
Ayyy a new vid lets go
Reminds me of sawing open golf balls in my youth and being shocked when the huge spurt of "geuch" shot out.
Today in Cody'sLab, we accidentally create the Holy Band Grenade.