Your tachometer (for the first run) seems to be pretty accurate! Those things are known to give false readings at higher RPM. I used the fundamental frequency to calculate the RPM, which turned out to be approximately 11,610 RPM on the first run. Sound is usually the most accurate means of measurement of high RPM, since you can pick out the fundamental fairly easily - so long as there aren't multiplying forces like in an engine with different amounts of cylinders and different exhaust strokes. Since this only has one hole for exhaust, it makes sense that the fundamental frequency it produces would be able to be used to calculate RPM to a high degree of accuracy. 03:52 - 1st run peak freq.: ~193.5 Hz x 60s = *~11,610 RPM* 04:03 - 2nd run peak freq.: ~223 Hz x 60s = *~13,380 RPM* 04:40 - "Warm water" run peak freq.: ~534 Hz x 60s = *~32,040 RPM* EDIT: Edited for small mistake ("Warm water run" instead of "Liquid N run "). Thanks @a-o-s
@Ataco2eat Because Hertz is cycles per Second, and RPM is cycle per Minute, and there's 60 seconds in each minute, all you need to do is multiply your frequency by 60 to get the RPM. Pretty simple maths. :)
It was around 31,395 RPM. In the one run. I measured the frequency of the sound and multiplied by 60 to get it in RPM. (edit: I measured it wrong the frequency was around 523hz.)
I built this engine as my science fair project in 8th grade. I entered it in the engineering category. I was awarded the blue ribbon for engineering. I was also awarded a blue ribbon for physics, though I had not entered the category. I used a copper toilet float given to me by my uncle, who was a plumber. I used two copper 90° tubes, which, with the help of my uncle, I brazed onto the toilet float. Water was filled through the threaded hole where the float rod screwed into the ball. We used a simple screw to close the hole. We used JB Weld for car exhaust repairs to attach it to bearings on either side, which were attached at two points to a frame we built. I used a Sterno for the flame. That was 45-46 years ago, and I've been a rocket hobbiest ever since. My grandson and I are building compressed air rocket right now. This is fun stuff!
Probably good to have the adult supervision on a project like that😂 one braze gone wrong and you'd have an accidental IED on your hands😬 sounds like a awesome project though! My favorite thing as a kid was sorting through random leftover hardware bits to make projects out of
@ianmanning4062 I used to take things apart all the time. I built my first computer when I was about 13. I bought plans from some catalog and parts from Radio Shack. It was essentially a TRS-80. Man, it was slick. It ran BASIC, and I had a cassette tape backup. My uncle, who was a systems analyst, helped me a lot. I was not a boy genius. I didn't invent anything. I was a curious kid who never stopped being curious. That little motor would go, "Zzzzzziiing!"
I believe the ball at 4:40 was rotating around 30000+ RPM for a moment! The pitch was about C5 (523Hz) so 523 revolutions per second, times 60 (60 seconds in a minute) gives around 31380 RPM. Edit: I'm assuming the sound is created by the pressure waves due to the jet (1) of the ball. And judging by the previous results (around 15000 RPM) it makes sense.
This is what I got too. I saw a gues for 60000 but I think that's an octave high; this is about a c5, not a c6. Trying to think of pop songs that have c5 and c6 as a major. C5 is Whitney houston in i will always love you (it's a b5 but this tones between the 2. So pretty close). An octave higher would be 60000 but that's way too high
7:59 "You use more energy making the liquid nitrogen than you get back out of it in the engine" Ok but this is true of EVERY energy storage system. A 100% lossless energy storage system would be world-changing, it doesn't exist. The real issue in powering vehicles is energy density, since vehicles actually need to move the weight of their energy source around, that ratio is critically important.
@@DrDeuteron You're basically turning everything except the liquid nitrogen into a battery, then extracting energy from the system by allowing everything else to warm the liquid nitrogen.
@@Frommermani would argue that the nitrogen is still the battery, it just happens to store a "negative energy" from the ambient temperature and also where it is then released in the phase change. Either way, it's still just a temperature gradient. Think about how AC electricity has potential in both positive and negative voltage compared to ground.
@@DrDeuteronbasically how thermodynamics works is that any place there is a difference in temperature, you can extract work from it. So if you have something extremely cold like liquid nitrogen, you can take some of the heat energy being transferred into it from the ambient environment and convert it to work. It's like how a ball on top of a mountain has potential energy if you consider zero to be sea level, but a ball at sea level has potential energy if you consider zero to be the lowest point in Death Valley. We can always extract energy from something as long as it has a lower energy state for it to "fall" into.
There's no hollow inside ball bearings, so no. :( However, I once found a ball bearing can be caught in the air jet from a narrow nozzle connected to a compressor, and would spin up to crazy speeds! Point the air jet up.
For those who don't know: nuclear reactors are just giant steam turbines that use atoms to heat the water instead of fire, hence the number for steam-generated power. It's astronomically more fuel efficient than most heat sources.
We are moving away from that. Next gen reactors do not use water as coolant, so there is no need to also use that as heat transfer medium to the turbine. Plain CO2 is a great gas to use for heat transfer, it does not have the risk of exploding like water, and by replacing the steam turbine with a gas turbine we can get up to 40% more efficiency from just that change.
@@kingki1953actually that’s pretty much every power plant. The main goal is to make steam that then spins a turbine connected to a generator to make power.
Improvement idea: 1) open the ball and insert a small disc of ferrous material 2) reseal the ball and fill with LN. 3) drop on an induction stove top, heating the ferrous disc without drag.
What happens when the ball melts? Styrene has a melting point very near the temperature of induction stoves, both up to 500° F/260° C. Given the already extreme difference in LN temperature versus ambient air, I don't see much benefit to this added weight, likely imbalance in attaching the disk and resealing, and danger of having a plastic ball stuck to your stovetop, as well as the fumes the styrene and most adhesives would release when heated.
Just to clarify: if your hairy trumpball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to your orbanusmeter
@@miguelalonsoperez5609 There are some horizontal propellers that spin along that axis like an old fashioned lawn mower. I can't remember the name for the effect used to make it fly. But the point is there should be ways to utilize the effect, and maybe a very simple battery, switch and heating element (maybe afine mesh in the inside of the chamber.... and the N2 should go nuts :P There may also be something better to use than a ping pong ball, thought light and strong would bre required...
The other factor of the failure of this engine in ancient times is that there was simply not a lot of potential use for it, although a similar technology also invented by him was used to open door temples. A lot of technology is discovered when there's no practical reason yet. Bayes rule only found use after 200 years from its creation.
Yeah. And we still keep discovering new and new of their discoveries to this very day! Also, nice word play there, even if it might not have had been intended :)
Just to clarify: if your ball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to your orbanusmeter
Yes creating liquid nitrogen does take more energy than you'll get out, but that's not really the point. Batteries also take more energy to charge than you'll get out again, but they have the important property of portability. I was hoping you'd actually describe how efficient the energy conversion is, as compared to other forms of energy storage.
@erner_wisal jojo's bizzare adventure part 7, steel ball run. There's a second power system where they can use the golden ratio to provide the perfect spin. A side character uses green steel balls to throw them with the power of golden ratio and they do much damage. It is not an anime and we didn't get any official release date. We just hope that the author will make an anime for this manga
Why not use an air vent to keep ball in one place and floating. You know like those toys where a ball stays in one place over an air vent. The air can be hot and also lower the friction for the ball to rotate even faster. Would love to see that
@AKG58Z If any setting on your hairdryer melts a ping pong ball, you probably need a new hairdryer. And most hot air guns can be fun at even lower temperatures than hairdryers.
The high rotational rpm’s would surely cause the ball to leave the air stream. It would be almost impossible to not have the two rotating vectors interfere.
Can you imagine how different the world would be if they tried to harness the power of the engine instead of treating it like a novelty? 1700 more years of innovation.
I have perfect pitch. The pitch the ball made at 4:40 was a slightly sharp C5. I would estimate it to be around 530-535 hertz based on my ear alone. Multiply that by sixty, and you get around 31,800-32,100 RPM based on the sound alone. As another little fun fact, given the average ping pong ball is about 4 centimeters in diameter, that would mean the velocity of its rotational equator was about 66.7 meters/second, or 149 miles an hour.
@@BigyetiTechnologies again, the entire point of The Action Lab doing the experiment the way they did was to see how fast it could go. So why deliberately sabotage that by slowing it down?
See if the Shlomo guys would be interested in a collab on this... Just to clarify: if your hairy trumpball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to your orbanusmeter
To do the audio trick: Import to audacity, then amplify to 0dB. Then go plot spectrum, use super auto-correction. The peak frequency is the base harmonic of the sound. Multiply that number by 60 and you have the exact RPMs. (I used this trick in uni to figure out the speed of turbines without having to use a tach into narrow spaces)
Nah, the hero's engine has massive problems that prevent it from being used to accomplish any work. It was an important step toward the industrial revolution though.
You have to remember that leaps in technology seem obvious once they happen. No one in Greece saw potential in the engine, so they never thought to progress its ideas.
I think slave based societies don't have sufficient pressure to invent new machines to replace human labour. In fact having open borders probably has the same effect. You need labour costs to rise to force people to industrialise and if the elite can control labour costs you get stagnation.
Heron Alexandreus (Alexandria 2nd century BC) was a Greek mathematician, engineer and inventor, whose most famous invention was the aeolosphere, the first steam engine in world history. He was the director of the Higher Technical School of Alexandria, the first polytechnic school that had been established in the Museum as an annex for engineers. It is said that he followed the theory of atoms and the Mechanical Syntax of Philo while the ideas of Ctesibius were the basis for some of his works.
Water ice is much hotter than liquid nitrogen. Get a big block of ice, make a dish shape in the top of it, the ball will spin almost friction-less on the ice, and self correct to stay near the bottom of the dish shape. The gas will come out still, just over a slightly longer time, which ought not change much about the peak speed.
I just checked the frequency of the sound after it was dipped in the water by using Audacity to record my system sounds and played the video and then I put it in spectrogram mode to find the true fundamental and plotted the spectrum to get the exact frequency and it was 527Hz, which means it was 31,620RPM if it only had 1 hole.
At 5:19 the levitation fails because the ball is experiencing the Dzhanibekov effect; put simply it wants to spin with the metal piece on the perimeter rather than in the center, so starting it with the metal piece in the center means it wants to flip around and spin around a different axis. To fix this, put the metal around the ball rather than at the top, so the spinning ball looks a little like Saturn. Once you do that, you'll be able to get a lot higher spin rate.
Small correction to 1:45 "It doesn't matter how fast you're going", this ignores near-luminal speeds, at which point it takes more and more energy put in to get smaller and smaller acceleration out. Nothing with mass can reach c, so there IS a limit.
To improve the positional stability of the ball when spinning, make a second hole diametrically opposite the first and at the same angle to the surface. You’ll then have two balanced jets instead on a single jet offset from the centre.
"Liquid Nitrogen isn't an energy source" While true, it's also important to mention that it is used as a monopropellant fuel source in cold gas RCS thrusters on spacecraft (correct me if I'm wrong ofc), going back to the same original principles as those in the Aeolipile. Just because it is energy negative, doesn't mean it isn't useful as a fuel under the right applications.
Just to clarify: if the ball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to the frame rate at which the video was recorded, then measuring the frequency of the sound is more accurate than the laser RPM reader.
From the pitch, I heard a little more than an octave difference between the time you got 18,000 and 13,000, and that suggests a little more than 2x the speed. Assuming that the 18,000 was not an artifact and you trust it, that would mean the ball was at almost 40,000 rpm. If you trust the 13,000 more, that would mean the second ball was more like 28,000 rpm. This is off the ear test btw.
I noticed something that could have influenced your warm water test. The first time you did it, the dish was almost full of water. The second time you did it, the water was very shallow. I wonder if the reason it bounced out, was because it submerged briefly and the buoyancy launched it out.
In order to heat the liquid N faster inside the ball I had a few thoughts: 1) warm a metal or glass dish in an oven for a while, maybe a glass bowl that is oven safe and would contain warmer air as well as a warmer surface. 2) along those lines, warm/heat one of those curved mirrors for an Euler's disk. 3) fill a small container with sulfur hexafluoride (SF6) that would maybe allow the ball to float (I don't know the relative densities so it may not work, if it does then you could heat the gas too.) and 4) Taking all precautions, heat a pool of liquid mercury and then put the ball on that ;)
@@sslp2525 phonetic Japanese. Google doesn't even know what to do with it, lol. It's like writing English using the pronunciations offered for each word in the dictionary, instead of the normal spelling.
i love it also when it is explained, why and how the knowledge was sort of ahead of its time- like why they didn't start building steam engines way earlier etc. it is such a clever way to end up answerering not asked questions.
@@Jordan-Tech RUclips is quite careless with comment data. Several other people have calculated it. Look for @PrincipalAudio who has done it well: first testing his method with the tachometer-measured ball.
FYI I am willing to share a couple of my inventions with you if you will build and test them on your show: #1) I made one magnet attract itself towards an iron plate hiding another magnet behind it which then DID IN FACT repel the outer stator magnet making the inner rotor magnet and iron plate continue moving, and I only moved it 1,000th of an inch per second initially using a caliper and watch so I can calculate the forces. I wish I had recorded it! Now I plan to try and build it again but a full motor this time! #2) I think I figured out how to use counter-rotating magnetic weights and 'solenoids' to produce significant propulsive force in air, water, and space craft, with no outer apparent means of propulsion. And #3) If I can build both of these I could build craft which 'fly' through air, water, and outer-space, with no fuel or visible means of propulsion! Also I believe I am very close to answering the errors in equations relating the force of "Gravity" and "Quantum Mechanics", by showing how "electricity" is really just pressure upon space-time in 3D, "Magnetism" is a result of spinning that pressure to create "Dipoles" and "Lines of Force", then "Resonance" is the actual cause of the "Strong Atomic Force" (at the first "Nodal Point" where attractive forces are the Strongest), AND "Gravity" (Everywhere outside of that 1st "Nodal Point"), and the "Weak Atomic Force" is a result of the opposite "Force" we call "Dissonance". Now I have been studying Einstein's Field Equations and Maxwell's and many others (especially that "Stress-Energy Tensor" used to measure "Energy" in a 3D volume, HOW EXACTLY is "Energy" measured, and in which unit? Joules I think is the unit btw, and I think it was Grams for Mass and Meters per Second for Speed of Light, in E=MC^2). So I am willing to discuss that also, with anyone who actually comprehends "Integral and Differential Calculus" and all these equations, which I am still learning right now).
Model aircraft pilot here I've heard a similar pitch from a 280mph rc plane called a voodoo and they rev to 56,000 in a dive it also has a one bladed propeller
I got the ping pong ball at 4:40 to be 31380rpm. The pitch at its highest reached around a C5 in pitch = 523hz. 523x60sec = 31380, or 31380 repetitions per minute.
0:08 “ Invented 2,000 years ago” 2,000 years later the same basic concept is still in use. This being “burn and squirt”, and it will won’t even get humanity to the nearest star.
Thanks. Must be the same concept as the nitrogen used in cars for a speed boost. Now i understand why the wheels turn so fast all of a sudden when activated.
7:52 of course you get less desired energy out of a liquid nitrogen engine than the energy required to produce the liquid nitrogen. No system is 100% efficient at transforming or transferring energy. You were bordering on perpetual motion by inferring the inefficiency was the reason liquid nitrogen engines are not used. The amount of inefficiency might well be the main reason but that wasn’t addressed. That and the danger of accidentally creating an enormous bomb if something goes wrong with the pressure vessel used to store the liquid nitrogen
Wouldn't you just use the sun and a magnifying glass to heat up the nitrogen and the metal ball it's in? That's a basic idea of what I'm thinking. If I had stuff to actually try this, I would also make the magnifying glass thing follow the time and position of the sun in the sky with the Earth's magnetic field and something that works like a compass. So this could get/make electricity/energy during the day and 'charge' something. The idea seems kind of like a solar panel. Man, I have all these ideas and concepts in my head that I find really interesting and awesome and that I want to do, but oh well.
Wow! When you put it in the water and it started spinning super fast, it sounded like it had an electric motor in it because of the noise it was making.
Steam going out the nozzles does not cause thrust. It is internal pressure against the forward bends of the tubes that causes the force. Steam streaming out the nozzles actually creates drag on the nozzles.
At 4:40 I found the ball's highest pitch to be exactly middle C (C4) which is 261.63 hertz (261.63 cycles per second). Multiply that by 60 to get the per-minute rate and it's 15,697.8 RPM.
Yes based on the pitch it sounds just like one of those high-speed brushless motors. They say they are usually about 100,000 RPM? And some of them 130? It's hard to really say. I know I've exceeded mine and heard that super high pitched whine! I am unable to measure but I do have ears.
Space flight organisations are extremely careful that the astronauts are selected based on the concentricity of their ani. It's little known fact that it is the most important attribute that they are tested for. An eccentric anus can be disastrous as was seen in the "Событие бобов" (Beans Event) on the Russian space station MIR in 1997 , and the "Beans Event" on Skylab in 1973
Your tachometer (for the first run) seems to be pretty accurate! Those things are known to give false readings at higher RPM. I used the fundamental frequency to calculate the RPM, which turned out to be approximately 11,610 RPM on the first run.
Sound is usually the most accurate means of measurement of high RPM, since you can pick out the fundamental fairly easily - so long as there aren't multiplying forces like in an engine with different amounts of cylinders and different exhaust strokes. Since this only has one hole for exhaust, it makes sense that the fundamental frequency it produces would be able to be used to calculate RPM to a high degree of accuracy.
03:52 - 1st run peak freq.: ~193.5 Hz x 60s = *~11,610 RPM*
04:03 - 2nd run peak freq.: ~223 Hz x 60s = *~13,380 RPM*
04:40 - "Warm water" run peak freq.: ~534 Hz x 60s = *~32,040 RPM*
EDIT: Edited for small mistake ("Warm water run" instead of "Liquid N run "). Thanks @a-o-s
You get the "Smarty pants" award 🏆congratulations!
This should be pinned.
Thanks I was just about to ask about the reliability of that tachometer reading.
very cool! can you post the math? i want to try to solve it too
@Ataco2eat Because Hertz is cycles per Second, and RPM is cycle per Minute, and there's 60 seconds in each minute, all you need to do is multiply your frequency by 60 to get the RPM. Pretty simple maths. :)
The frequency of the sound at the peak speed was around 520-530hz, which puts the speed at roughly 31,500RPM.
It was around 31,395 RPM. In the one run. I measured the frequency of the sound and multiplied by 60 to get it in RPM.
(edit: I measured it wrong the frequency was around 523hz.)
Thanks for explaining it too!
Why multiplied by 60?
Is it assuming one wavelength is one full rotation?
@@robertoconconi Sound frequencies are measured in hertz (hz), i.e. revolutions per second. RPM is revolutions per minute so seconds to minutes is 60
@@robertoconconi Because frequency is measured in seconds and RPM in minutes.
I built this engine as my science fair project in 8th grade. I entered it in the engineering category. I was awarded the blue ribbon for engineering. I was also awarded a blue ribbon for physics, though I had not entered the category. I used a copper toilet float given to me by my uncle, who was a plumber. I used two copper 90° tubes, which, with the help of my uncle, I brazed onto the toilet float. Water was filled through the threaded hole where the float rod screwed into the ball. We used a simple screw to close the hole. We used JB Weld for car exhaust repairs to attach it to bearings on either side, which were attached at two points to a frame we built. I used a Sterno for the flame. That was 45-46 years ago, and I've been a rocket hobbiest ever since. My grandson and I are building compressed air rocket right now. This is fun stuff!
Probably good to have the adult supervision on a project like that😂 one braze gone wrong and you'd have an accidental IED on your hands😬 sounds like a awesome project though! My favorite thing as a kid was sorting through random leftover hardware bits to make projects out of
@ianmanning4062 I used to take things apart all the time. I built my first computer when I was about 13. I bought plans from some catalog and parts from Radio Shack. It was essentially a TRS-80. Man, it was slick. It ran BASIC, and I had a cassette tape backup. My uncle, who was a systems analyst, helped me a lot. I was not a boy genius. I didn't invent anything. I was a curious kid who never stopped being curious. That little motor would go, "Zzzzzziiing!"
From nephew to grandson. Beautiful.
I believe the ball at 4:40 was rotating around 30000+ RPM for a moment!
The pitch was about C5 (523Hz) so 523 revolutions per second, times 60 (60 seconds in a minute) gives around 31380 RPM.
Edit: I'm assuming the sound is created by the pressure waves due to the jet (1) of the ball. And judging by the previous results (around 15000 RPM) it makes sense.
This is what I got too. I saw a gues for 60000 but I think that's an octave high; this is about a c5, not a c6.
Trying to think of pop songs that have c5 and c6 as a major. C5 is Whitney houston in i will always love you (it's a b5 but this tones between the 2. So pretty close). An octave higher would be 60000 but that's way too high
@@rileywern9619 I literally went to my piano to check with my phone on the other hand xd
Agreed, I measured 522 Hz but didn't look too precisely
@@rileywern9619there was 2nd harmonic visible on my spectrogragh
@@MrV705 based on your calculations this means the ball would have roughly 13 joules of energy which is feasible
Bro is continuing Gyro's legacy
7:59 "You use more energy making the liquid nitrogen than you get back out of it in the engine"
Ok but this is true of EVERY energy storage system. A 100% lossless energy storage system would be world-changing, it doesn't exist. The real issue in powering vehicles is energy density, since vehicles actually need to move the weight of their energy source around, that ratio is critically important.
so "where" is the energy stored? For compressed gasses it's duh: P x delta V, but here it's in the phase-transition but that kinda leaves me [?]
I belive what he was trying to say is that producing combustable fuels takes less energy than what we can get out of them.
@@DrDeuteron You're basically turning everything except the liquid nitrogen into a battery, then extracting energy from the system by allowing everything else to warm the liquid nitrogen.
@@Frommermani would argue that the nitrogen is still the battery, it just happens to store a "negative energy" from the ambient temperature and also where it is then released in the phase change. Either way, it's still just a temperature gradient. Think about how AC electricity has potential in both positive and negative voltage compared to ground.
@@DrDeuteronbasically how thermodynamics works is that any place there is a difference in temperature, you can extract work from it. So if you have something extremely cold like liquid nitrogen, you can take some of the heat energy being transferred into it from the ambient environment and convert it to work.
It's like how a ball on top of a mountain has potential energy if you consider zero to be sea level, but a ball at sea level has potential energy if you consider zero to be the lowest point in Death Valley. We can always extract energy from something as long as it has a lower energy state for it to "fall" into.
can you use it on steel balls?
Bro isn't gyro zeppeli🙏😭
There's no hollow inside ball bearings, so no. :( However, I once found a ball bearing can be caught in the air jet from a narrow nozzle connected to a compressor, and would spin up to crazy speeds! Point the air jet up.
sadly you have to be crippled at minimum
@@eekee6034why you automatically assume he meant a solid steel ball???
@@cbfull you mean there are other kinds???!?
For those who don't know: nuclear reactors are just giant steam turbines that use atoms to heat the water instead of fire, hence the number for steam-generated power. It's astronomically more fuel efficient than most heat sources.
So nuclear power is just heating water with extra step
We are moving away from that.
Next gen reactors do not use water as coolant, so there is no need to also use that as heat transfer medium to the turbine.
Plain CO2 is a great gas to use for heat transfer, it does not have the risk of exploding like water, and by replacing the steam turbine with a gas turbine we can get up to 40% more efficiency from just that change.
@@Merecir thanks
@@hypedstocksprices5963 Look up "LFTR" or "molten salt reactor" for more detail.
@@kingki1953actually that’s pretty much every power plant. The main goal is to make steam that then spins a turbine connected to a generator to make power.
clicked for jojo reference,
stayed for jojo reference,
liked for jojo comments
GYRO!
GYRO!
GYRO ZEPPELI!
Exactly why I clicked
😁🫴🥎
Love everything about your videos, thank you for another great one!!
Improvement idea:
1) open the ball and insert a small disc of ferrous material
2) reseal the ball and fill with LN.
3) drop on an induction stove top, heating the ferrous disc without drag.
What happens when the ball melts?
Styrene has a melting point very near the temperature of induction stoves, both up to 500° F/260° C. Given the already extreme difference in LN temperature versus ambient air, I don't see much benefit to this added weight, likely imbalance in attaching the disk and resealing, and danger of having a plastic ball stuck to your stovetop, as well as the fumes the styrene and most adhesives would release when heated.
Better idea than all of those: poke 2 or more holes, symmetric about any arbitrary central axis.
Gyro zeppeli would be proud
Underrated comment
~Nyo Ho~
Just to clarify: if your hairy trumpball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to your orbanusmeter
Arigato, Gyro
SpEeEeEeEeEeEen
0:25 bro made a tornado siren
Yeah man!
Bro made that shit fly
Can you 3d print a ball with propeller blades? It would be neat to get it spinning and fly into the air.
Paint it gold and you have can play quidditch
Probably the wings would break way before reaching max rotation or they will break the ball depending on the structure
@@miguelalonsoperez5609 There are some horizontal propellers that spin along that axis like an old fashioned lawn mower. I can't remember the name for the effect used to make it fly. But the point is there should be ways to utilize the effect, and maybe a very simple battery, switch and heating element (maybe afine mesh in the inside of the chamber.... and the N2 should go nuts :P There may also be something better to use than a ping pong ball, thought light and strong would bre required...
Wings would break, but you’d only need some properly shaped “nubs” at 60k RPM to generate enough lift to launch a ping pong ball plus a few mL of LN2.
@@miguelalonsoperez5609 That's the spirit that pushes the frontiers of knowledge. "It might not work so why try?"
The other factor of the failure of this engine in ancient times is that there was simply not a lot of potential use for it, although a similar technology also invented by him was used to open door temples. A lot of technology is discovered when there's no practical reason yet. Bayes rule only found use after 200 years from its creation.
Also a huge problem against earlier industrialization was slavery.
A more modern-day example of that is the fact that no elements after Californium have any practical applications except for scientific research.
The ancients sure were good with revolutions
Yeah. And we still keep discovering new and new of their discoveries to this very day! Also, nice word play there, even if it might not have had been intended :)
It helps if you're dizzy on lead and wine all the time.
That must be why we keep going around in circles ;-)
Hahaahhahhahah😂
Just to clarify: if your ball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to your orbanusmeter
Yes creating liquid nitrogen does take more energy than you'll get out, but that's not really the point. Batteries also take more energy to charge than you'll get out again, but they have the important property of portability. I was hoping you'd actually describe how efficient the energy conversion is, as compared to other forms of energy storage.
3:19 GO JOHNNY GO GO GO!!!
lets gooo
Found the Jojo reference 4 comments down, not disappointed, but we could do better!
CHUMIMIIIIIIINNN!!
Arigato.. gyro..
Soreshka yuu koto baka mistkaranai..
Now throw a box of them in a hottob full of people and whach the results
That's a Bizarre technique fitting for an Adventure
im sure that this STEEL BALL technique will be used in the long RUN
Now make one made of steel and make it have a green color
Peak
Yeah
Is this a reference to something? If so what is it?
@erner_wisal jojo's bizzare adventure part 7, steel ball run. There's a second power system where they can use the golden ratio to provide the perfect spin. A side character uses green steel balls to throw them with the power of golden ratio and they do much damage. It is not an anime and we didn't get any official release date. We just hope that the author will make an anime for this manga
@stavros222 aha, thanks
it’s called spin and it was created by the zeppelis
Why not use an air vent to keep ball in one place and floating. You know like those toys where a ball stays in one place over an air vent. The air can be hot and also lower the friction for the ball to rotate even faster. Would love to see that
Or a hairdryer, or hot air gun.
Too hard to engineer, the ball isnt perfect, it will be fly away because of turbulence of itself
The hot air will melt that ball
@AKG58Z If any setting on your hairdryer melts a ping pong ball, you probably need a new hairdryer. And most hot air guns can be fun at even lower temperatures than hairdryers.
The high rotational rpm’s would surely cause the ball to leave the air stream. It would be almost impossible to not have the two rotating vectors interfere.
Can you imagine how different the world would be if they tried to harness the power of the engine instead of treating it like a novelty? 1700 more years of innovation.
The frobidden beyblade
The most ancient in that. Nemesis from Metal Fusion has no chance against it😂
Frobidden
Frobidden is a nice term for it
You've made the inventor of FroYo proud
frobidden
"frobidden" 🗣🗣🔥🔥
I have perfect pitch. The pitch the ball made at 4:40 was a slightly sharp C5. I would estimate it to be around 530-535 hertz based on my ear alone. Multiply that by sixty, and you get around 31,800-32,100 RPM based on the sound alone.
As another little fun fact, given the average ping pong ball is about 4 centimeters in diameter, that would mean the velocity of its rotational equator was about 66.7 meters/second, or 149 miles an hour.
Impressively close to the results of an audio tech who measured carefully.
@@eekee6034he read the top comment then made this crap up. Hes a nobody
DAAAAAAMNNN. Your estimate was *bang-on.*
See if the slomo guys would be interested in a collab on this.
Or you could just rotate the ball slowly.
@@terratec1001 you mean defeat the entire purpose of trying to see how fast he could make the ball rotate?
@@Claire-t8l5ssame principle as lifting lighter weights at the gym, it makes it easier.
@@BigyetiTechnologies again, the entire point of The Action Lab doing the experiment the way they did was to see how fast it could go. So why deliberately sabotage that by slowing it down?
See if the Shlomo guys would be interested in a collab on this... Just to clarify: if your hairy trumpball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to your orbanusmeter
To do the audio trick:
Import to audacity, then amplify to 0dB. Then go plot spectrum, use super auto-correction. The peak frequency is the base harmonic of the sound. Multiply that number by 60 and you have the exact RPMs. (I used this trick in uni to figure out the speed of turbines without having to use a tach into narrow spaces)
Crazy how we could have had the industrial revolution 2000 years earlier, but greece decided not to
Nah, the hero's engine has massive problems that prevent it from being used to accomplish any work. It was an important step toward the industrial revolution though.
You have to remember that leaps in technology seem obvious once they happen. No one in Greece saw potential in the engine, so they never thought to progress its ideas.
I think slave based societies don't have sufficient pressure to invent new machines to replace human labour. In fact having open borders probably has the same effect. You need labour costs to rise to force people to industrialise and if the elite can control labour costs you get stagnation.
The industrial revolution was a mistake though, Greece made the right choice imo. 2000 extra years of unpolluted, nicely paced, happy lives
Because of the slavery, you dont need to automatice work having slaves
We are going on a horse race while being paralyzed with this one 🗣🔥🔥
"let me show you what a guy in a cowboy hat taught me"
Put that ping pong ball in a round bottom plate or bowl to reduce even more friction 4:10
Heron Alexandreus (Alexandria 2nd century BC) was a Greek mathematician, engineer and inventor, whose most famous invention was the aeolosphere, the first steam engine in world history.
He was the director of the Higher Technical School of Alexandria, the first polytechnic school that had been established in the Museum as an annex for engineers. It is said that he followed the theory of atoms and the Mechanical Syntax of Philo while the ideas of Ctesibius were the basis for some of his works.
Αδελφέ ματαιοπονείς....άφεσον αυτοίς στο σκοτάδι τους.
1:23 - "heheh" **awkward silence** "it worked"
lore of steel ball run:
Yuck a JoJo fan
so thats how tusk act 4 works...
I think that's a Jojo reference
Water ice is much hotter than liquid nitrogen. Get a big block of ice, make a dish shape in the top of it, the ball will spin almost friction-less on the ice, and self correct to stay near the bottom of the dish shape.
The gas will come out still, just over a slightly longer time, which ought not change much about the peak speed.
This channel has gotten so much better over the years and I love it
Especially when he lost the man-bun
I just checked the frequency of the sound after it was dipped in the water by using Audacity to record my system sounds and played the video and then I put it in spectrogram mode to find the true fundamental and plotted the spectrum to get the exact frequency and it was 527Hz, which means it was 31,620RPM if it only had 1 hole.
3:29 "that's so cool" all of science summarized in 3 words
At 5:19 the levitation fails because the ball is experiencing the Dzhanibekov effect; put simply it wants to spin with the metal piece on the perimeter rather than in the center, so starting it with the metal piece in the center means it wants to flip around and spin around a different axis.
To fix this, put the metal around the ball rather than at the top, so the spinning ball looks a little like Saturn. Once you do that, you'll be able to get a lot higher spin rate.
1:15 - You just proved rocketry.
well he did just mention it 1:29
Small correction to 1:45 "It doesn't matter how fast you're going", this ignores near-luminal speeds, at which point it takes more and more energy put in to get smaller and smaller acceleration out. Nothing with mass can reach c, so there IS a limit.
Near light speed rotation? Cmon action lab, lets see that video demonstration!😁 Lol
@@David_Last_Name oh hell yeah, let's see an axion demonstration!
Akshooally
@@faaltov I'm autitsic, I'm very picky about accuracy :p
@@nobody.of.importanceclearly 🫤
To improve the positional stability of the ball when spinning, make a second hole diametrically opposite the first and at the same angle to the surface. You’ll then have two balanced jets instead on a single jet offset from the centre.
"Liquid Nitrogen isn't an energy source" While true, it's also important to mention that it is used as a monopropellant fuel source in cold gas RCS thrusters on spacecraft (correct me if I'm wrong ofc), going back to the same original principles as those in the Aeolipile. Just because it is energy negative, doesn't mean it isn't useful as a fuel under the right applications.
Bro assembled every JOJO fan
How are you the top comment
Yes
Gyro
Just to clarify: if the ball has only one hole for the gas to escape then the pitch of the sound is mathematically equal to the RPM of the ball. If the tone measures 1000hz then the ball is spinning at 60,000 RPM. (1000hz x 60seconds) If the RUclips frame rate is faithful to the frame rate at which the video was recorded, then measuring the frequency of the sound is more accurate than the laser RPM reader.
From the pitch, I heard a little more than an octave difference between the time you got 18,000 and 13,000, and that suggests a little more than 2x the speed.
Assuming that the 18,000 was not an artifact and you trust it, that would mean the ball was at almost 40,000 rpm.
If you trust the 13,000 more, that would mean the second ball was more like 28,000 rpm.
This is off the ear test btw.
I noticed something that could have influenced your warm water test. The first time you did it, the dish was almost full of water. The second time you did it, the water was very shallow. I wonder if the reason it bounced out, was because it submerged briefly and the buoyancy launched it out.
Gyro Zeppelin being exposed 😂😂😂😂😂😂😂😂😂😂😂😂
In order to heat the liquid N faster inside the ball I had a few thoughts: 1) warm a metal or glass dish in an oven for a while, maybe a glass bowl that is oven safe and would contain warmer air as well as a warmer surface. 2) along those lines, warm/heat one of those curved mirrors for an Euler's disk. 3) fill a small container with sulfur hexafluoride (SF6) that would maybe allow the ball to float (I don't know the relative densities so it may not work, if it does then you could heat the gas too.) and 4) Taking all precautions, heat a pool of liquid mercury and then put the ball on that ;)
Infinite spin
the way you give visual examples as to how physics work and interact with us is amazing.
arigato gyro
Average person : Earth is flat and space isn't real
Random Greek tinkerer from 1600 years ago :
this actually happened to me once, when I was an explorer of the ancient world
4:39 sounded almost like a tornado siren!😂😂😂😂😂😂
Hontoni mawari michi tanta.. Hontoni... Hontoni.. nante toui mawari michi... Gyro kono tamini… Arigato, Soreshi ka yu kotoba ga mits kara nai Arigato, Gyro.
Is this peak writing???
@@sslp2525 phonetic Japanese. Google doesn't even know what to do with it, lol.
It's like writing English using the pronunciations offered for each word in the dictionary, instead of the normal spelling.
i love it also when it is explained, why and how the knowledge was sort of ahead of its time- like why they didn't start building steam engines way earlier etc. it is such a clever way to end up answerering not asked questions.
The golden ratio was used in the making of this video (help from Johnny and gyro)
the fact that it was spinning SO incredibly fast that it almost flew is crazy 4:37
9:26 So what you're saying is that he was a real...Hero?
There was once a cartoon character named Jot. You've revived him.
5:00 waiting for someone to do the calculations
I did, and yt blocked it.
@ why?
@@Jordan-Tech RUclips is quite careless with comment data. Several other people have calculated it. Look for @PrincipalAudio who has done it well: first testing his method with the tachometer-measured ball.
It was more than 5rpms
@Mrv705 did it
FYI I am willing to share a couple of my inventions with you if you will build and test them on your show: #1) I made one magnet attract itself towards an iron plate hiding another magnet behind it which then DID IN FACT repel the outer stator magnet making the inner rotor magnet and iron plate continue moving, and I only moved it 1,000th of an inch per second initially using a caliper and watch so I can calculate the forces. I wish I had recorded it! Now I plan to try and build it again but a full motor this time! #2) I think I figured out how to use counter-rotating magnetic weights and 'solenoids' to produce significant propulsive force in air, water, and space craft, with no outer apparent means of propulsion. And #3) If I can build both of these I could build craft which 'fly' through air, water, and outer-space, with no fuel or visible means of propulsion!
Also I believe I am very close to answering the errors in equations relating the force of "Gravity" and "Quantum Mechanics", by showing how "electricity" is really just pressure upon space-time in 3D, "Magnetism" is a result of spinning that pressure to create "Dipoles" and "Lines of Force", then "Resonance" is the actual cause of the "Strong Atomic Force" (at the first "Nodal Point" where attractive forces are the Strongest), AND "Gravity" (Everywhere outside of that 1st "Nodal Point"), and the "Weak Atomic Force" is a result of the opposite "Force" we call "Dissonance". Now I have been studying Einstein's Field Equations and Maxwell's and many others (especially that "Stress-Energy Tensor" used to measure "Energy" in a 3D volume, HOW EXACTLY is "Energy" measured, and in which unit? Joules I think is the unit btw, and I think it was Grams for Mass and Meters per Second for Speed of Light, in E=MC^2). So I am willing to discuss that also, with anyone who actually comprehends "Integral and Differential Calculus" and all these equations, which I am still learning right now).
3:53 so fast that the black side was blurry looked like a gas giant for a second
How about using a hair dryer hold it up in the airflow? With a gentle warming effect it can both levitate and accelerate the effect
IS THAT A JOJO REFERENCE
What can you use the high rpm for. And does the high rpm have any torque or can you just stop it with your finger?
Ok this is SWEET! Thanks!
Man, if you could spin a ping pong ball that fast, irl. You would be a champion.
4:26 taz the tasmanian devil ahh ball
Will you put some fins on it so it can fly? Thank you greatly!
Is this a JoJo reference?
💀
yes
Steel ball run!!😡😡😡😡😡😡😡😤😤
meatcanyon does jo jo
bro i was gonna say that too
Model aircraft pilot here I've heard a similar pitch from a 280mph rc plane called a voodoo and they rev to 56,000 in a dive it also has a one bladed propeller
so thats two total props.
Only youtuber to make theories into reality hats off to you ❤
I got the ping pong ball at 4:40 to be 31380rpm. The pitch at its highest reached around a C5 in pitch = 523hz. 523x60sec = 31380, or 31380 repetitions per minute.
"OMG Its works"..........."Holy cow i can't stop it"
4:59 The pitch was at around ~520 Hz so 31,200 RPM
_Takes, "LET IT RIP!!!!!" to the EXTREME!!!_
0:08 “ Invented 2,000 years ago”
2,000 years later the same basic concept is still in use. This being “burn and squirt”, and it will won’t even get humanity to the nearest star.
5:06 I would guess 85k
Nah it’s closer to 45k
wow, how interesting, loved it
This is probably the coolest physics demonstration I have ever seen.
This is so cool! Thank you for making it fun to learn. 👨🔬
The liquid nitrogen-fun starts at 2:10 for you all crazy fisiks freaks
People really can't watch two minutes of pretense any more?
Thanks. Must be the same concept as the nitrogen used in cars for a speed boost. Now i understand why the wheels turn so fast all of a sudden when activated.
7:52 of course you get less desired energy out of a liquid nitrogen engine than the energy required to produce the liquid nitrogen. No system is 100% efficient at transforming or transferring energy. You were bordering on perpetual motion by inferring the inefficiency was the reason liquid nitrogen engines are not used. The amount of inefficiency might well be the main reason but that wasn’t addressed. That and the danger of accidentally creating an enormous bomb if something goes wrong with the pressure vessel used to store the liquid nitrogen
9:23 ... Probably not... probably it all started with a lucky accident and a smart observer.
Wouldn't you just use the sun and a magnifying glass to heat up the nitrogen and the metal ball it's in? That's a basic idea of what I'm thinking. If I had stuff to actually try this, I would also make the magnifying glass thing follow the time and position of the sun in the sky with the Earth's magnetic field and something that works like a compass. So this could get/make electricity/energy during the day and 'charge' something. The idea seems kind of like a solar panel. Man, I have all these ideas and concepts in my head that I find really interesting and awesome and that I want to do, but oh well.
Wow! When you put it in the water and it started spinning super fast, it sounded like it had an electric motor in it because of the noise it was making.
Steam going out the nozzles does not cause thrust. It is internal pressure against the forward bends of the tubes that causes the force. Steam streaming out the nozzles actually creates drag on the nozzles.
My tachometer read 80085 😊
Check it against the 13000 RPM run, you'll probably see 32,500 RPM. :) Always test your method
At 4:40 I found the ball's highest pitch to be exactly middle C (C4) which is 261.63 hertz (261.63 cycles per second). Multiply that by 60 to get the per-minute rate and it's 15,697.8 RPM.
Expert here. It was going really fast
i agree with this expert
4:30 is it lift off because of rotation or steam ?
4:33 that car sound tho 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
Yes based on the pitch it sounds just like one of those high-speed brushless motors. They say they are usually about 100,000 RPM? And some of them 130? It's hard to really say. I know I've exceeded mine and heard that super high pitched whine! I am unable to measure but I do have ears.
This also happens to astronauts who fart in space.
Space flight organisations are extremely careful that the astronauts are selected based on the concentricity of their ani.
It's little known fact that it is the most important attribute that they are tested for.
An eccentric anus can be disastrous as was seen in the "Событие бобов" (Beans Event) on the Russian space station MIR in 1997 , and the "Beans Event" on Skylab in 1973
"this is one small step for man, and one giant lea- [pfffft].... Houston, we have a problem."
I saw this item on Ancient Impossible and Ancient Top 10 on prime video.