Gravity Powered Escapement Wheel.... Simple machine lesson
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- เผยแพร่เมื่อ 20 มิ.ย. 2020
- This escapement wheel is a good example of showing how simple machines work together in the performance of a task, in this case turning a flywheel. I have found that students have a natural curiosity to explore these types of devices and are very interesting in learning more about concepts such as energy, work, forces, friction, and mechanical advantage of simple machines as they are in operation. I've included some other devices and ideas that I've also found to be good teaching tools.
Here is a list of the Videos of other devices shown during presentation
Cardboard ramp walkers • Cardboard ramp walkers...
Combination lock. • Combination lock demon...
Trebuchet • DIY science garage Pa...
Trebuchet • Punkin Chunkin Trebuch...
Reciprocating air engine hand powered. • Physics of toys- Recip...
Reciprocating air engine compressed air powered • Physics of toys-wooden...
Toy and machine dissection. • Toys and machines diss...
Flag waving machine • Flag waving machine///...
Simple air engine. (not shown) • Reciprocating Air Engi...
Simple and compound pulleys (not shown). • Single and compound pu...
Lever toy (not shown) • Toy physics--- lever t...
Rubber band powered car. (not shown) • Rubber band powered ca...
Questions
1.Draw a flow chart that follows possible energy types from the with origin, to power the device, and ending with the final form.
2.Identify each simple machine and if it has a mechanical advantage.
3.What was the purpose of having the weight supported by two strings instead of a single line?
4.Identify how the force changes as it progresses through device.
5.Identify the class of lever for the locking tooth lever, how does the class change as it is in operation?
6.Identify the pivot point, effort and resistance of the lever.
Identify the class lever is the whole pendulum?
7.If we cut off the top part of the pendulum, it would still act as a lever, identify the class, the fulcrum, effort, and resistance is the upper section of the pendulum were not attached to the wheel
8.Identify the pivot point, effort and resistance of the lever with the stop tooth.
9.How does the force change due to the size difference between the escapement wheel and the wheel with the applied force?
10.What would be the effect of changing the size of the wheel that the string is wrapped on? How would this effect the force on the escapement?
11.Why do the extensions on the winding wheel make it easier to turn?
12.What is the effect of applying force near the hub on the flywheel?
13.Verify the change in force using a spring scale for the weight of the force applied to the escapement wheel. Determine the ideal measurements versus what was found and explain the differences.
music used in video. Apple iMovie free file. carousel
video clips used in video
Piano escapement anamationfor pianoworld.com
CC Anchor escapement created by Chetevorno
CC Lever escapement created by Mario Frasca
CC Grasshopper escapement, developed by John Harrison
CC Coaxial escapement developed by Adithyamic gaming..
Very sharp looking model! Escapements are some of the coolest mechanical systems ever.
L
@@charlitocasano6876 ٥٥ف٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥٥
I agree
Not only is Bruce Yeany an excellent science teacher, he's a skilled carpenter as well!
Former science teacher now :)
thanks Evan, I do enjoy working with tools and woodworking, it is an area that I'd like to improve
@@ConstructionMachineryChannel m
@@ConstructionMachineryChannel he retired from schoolteaching?
@@Bryan_Kay Yes, he was a middle school science teacher
Thanks for sharing this. I have been fascinated by clocks since childhood when I took apart a Big Ben windup alarm clock my grandma had. I finally built a simple escapement in Lego (not even Technic parts) and being able to see one operate for myself, based on my own design, was a real turning point. I've collected clocks since, and built a couple, even. I may build you simple escapement to show my own kids how the mechanical clocks we have around work.
Excellent description of all the mechanisms at work, I especially loved how you broke down each mechanism and how they all operate in tandem to make more complex movements. I wish I had a teacher like Mr. Yeany when I was still in school, it's clear that he goes above and beyond to make educational information more accessible and enjoyable to novices.
I just discovered this channel and I've already subscribed, I look forward to future videos on similar topics in the future!
The greatest hits flash backs at the end were so fun! Brought back a lot of good memories of your fun channel and doing many of these experiments (I so kindly borrowed) from you in the classroom.
Bruce, I am sure you know that you inspire some of your students to take the next step in their lives to explore the made universe.I had a teacher like you for two years in highschool , he had your ability to get me to look at how physics work. Unfortunately the school had a commercial/ academic bent so I
only had him for one class once a week. Thankyou so much.
Thank you, I hope that has been the case. I've found it interesting in talking to several former students that many of them wished that they had me at a later time in their schooling rather than in middle school. They think they might have appreciated it a bit more when they were a bit more mature.
@@YeanyScience Thankyou for your kind thoughts. As achild I was interested in machines and tools and stuff, working alongside my dad. I wanted to do a trade at 15 but my parents didnt want me to end up in a factory. They were post war migrants from Germany and they saw my future in something more academic. I ended up working in a bank for only a very short time then took up truck driving from which I am now retired. But that job didnt require much brainpower so I used the day thinking of things I might do in my spare time. I am now an inveterate tinkerer and love to see the things you do and the inspiration you give to your students. If your work gives one kid in ten a spark of knowledge then you have succeeded in your life's purpose as a teacher.
.. 20 yrs. ago here in Australia the state government closed down all the technical schools which used to take all those no hoper kids who werent academic and turned them into useful, productive members of society. Today they are pouring all the kids into University and they all come out at 20 years of age with the same degrees or diplomas and no practical work for them. Look on YT how many young people are seeking knowledge in the crafts and trades that no longer exist commercially and they make a damn good go of it, perhaps from the little light you and other teachers like you switched on for them. Cheers , from Melbourne Australia
Woouw!!! Es grandioso!!!
Saludos y fuerte abrazo desde CDMX.
Excellent! Bruce!
The latest Wintergatan video cited this one as critical in Martin's design process.
This is awesome!
Fantastic collection of practical teaching!
Thanks Christian
Wow! very nicely built!
Always interesting videos, keep it up!
i wish all of my teachers were like you!
Another great video, Bruce. I hope you’re staying healthy and doing well.
Thanks Nick, I am safe and well, hope you are too
Bruce you are a God, this is exactly what I was looking for!
You're a wonderful educator.
Thank you for showing mechanism behind watch in such wonderful way
Gravity powered escapement wheels have been around for centuries, The grandfather clocks imported to the colonies, like the one my great grandparents had when we were kids in the 1930s & 40s, were powered with weights which were usually rewound daily. The clock mechanism, including the escapement gearing, was virtually identical to that of a coiled spring powered clock, except the energy was stored in the weight on the end of a rope/string wound onto a "drum". Part of the escapement mechanism was the pendulum, which served the same function as the escapement wheel spring in a spring powered watch or clock. The distance from the pendulum pivot to the center of its weight determines the period for the escapement cycle.
Very well explained and presented
Thats so cool.I live this.
You're a wonderful educator thank you sir.
Looks like it would be fun to make. Unlike most woodworkers I haven't been doing much woodworking during the quarantine. I should get back to my shop.
Parabéns pelas belas imagens.
Congrats, you just got a shoutout from wintergatan! He may be using this escapment design in the mmx!
Awesome!!!!
Incredible video! I think I’ll try making it myself!
I am currently working on a 2nd video that will post some ideas on construction, should be up next week
@@YeanyScience I saw that! I'll be watching for it. Have really fallen down the YT rabbithole on the subject already. Biggest problems I've encountered so far involve efficient fastening methods that don't introduce too much friction.
first i hit the like button and the watch the video. congratullations mr yeany for your work
Superb idea
Best science teacher ever! This guy is amaz-
5:15 OH GOD NO
👍🏼👍🏼👍🏼good job my friend 👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼
That clapping monkey mechanism is literally the scariest thing I've seen in a while😁
Another fantastic video. I'd love if you would show your woodworking shop sometime.
Hi Steve, thanks, nice channel I had subscribed before. I've had a few others request a view of my workshop, I've have it on my to do list.
1 perfect work
woo brilliant man.
hooo my god! this is awesome!
Thoroughly enjoy this one sir thank you! I would love to know if there was a set of plans for that, it would be a lot of fun to make with the kids. Make On
Please Bruce teach me how to build one!! It would be a great quarantine project, some vector files to print and glue to wooden boards to cut would be amazing. Great video
Greetings from Santiago, Chile
thank you, nice to hear from Chile
this is a good idea because i can use it to make a gravity powered flywheel
Rube Goldberg was your mentor growing up. Great machines.
great teacher
That the wheel can turn both ways messed with my head for a split second!
Thank you.
I got a lot more than I expected from this video
can you make another escapement wheel connected with another escapement wheel in series?
Awesome video, Professor! You can also use a planet gear as an escapement, which has the additional benefit controlled, continuous output to drive things like little handlight generators, too. Cheers!
Thanks Luis, I'll take a closer look at that idea and see if it's something I can build
@@YeanyScience th-cam.com/video/Jsc-pQIMxt8/w-d-xo.html
@Luis Hernandez
Appreciate the info! Could you post a link to something about planetary gears as escapements?
@@breadventurer th-cam.com/video/Jsc-pQIMxt8/w-d-xo.html
Destin from Smarter Every Day posted this. Check out how the planetary gears regulate the falling weights' speed.
Could you provide plans for the escapement wheel and maybe even the other simple machines and devices? Your videos seem like an excellent resource for teachers and plans would make them even more invaluable to some that are perhaps not as resourceful.
I am working on a follow up video that will go over basics of construction, should have it posted soon
Hey I just found your video and went on to try to make one myself but I can't get it to work properly. So do you by any chance have some tips or tricks for tweaking my design?
Good job
Thank. You sir.ಈ. Learned. Something
Mr.Bruce this is beautiful craftsmanship. I would love to build this.. is there anyway I could get the plans to this? Thank you sir for this video..
Hi John, I'm working on a follow- up video going over the construction that will be posted in a few days
From where you get this idea of inventing such things....This is incredible,, awesome 💓💓💓💓💓💓😀
Tough question, most of pieces I've built were done for educational purposes. With some pieces the ideas came from wanting a way to demonstrate a particular concept. I've spent a lot of time in science museums, looking at other peoples' work in books, online, etc, and then looked for ways that I could simplify it or change it to suit what I wanted. In this case I've seen quite a few variations of escapement wheels and wanted to try one for myself. What was interesting was about 3/4 of the way through building this piece I found someone's else's design that was very close to what I was working on, if I had seen it sooner, copying their piece would have been a lot easier but also less of a learning experience
@@YeanyScience thanks sir 💓 you are great love from india
I love this!!!! I've been tinkering with old clocks, and I decided I wanted to make one. I have the best skills with wood, so I figured, why not make a wooden one! I love seeing easy to look at and understand examples of the parts I may need to build. My question is - What's the best way to cut parts like this? Bandsaw? Scroll saw? Please let us know what tools you found the easiest to work with. Thanks! 🙏 ~ Josh
I used a scroll saw, I am working on another version and hope to get it completed this winter
Could an Escapement be used as a Bicycle Assist?
Залип на видео, как ребёнок))) Магия!
Excellente
1:41 How much energy can we use from the top wheel?
Hi Bruce, I'm interested in building similar model for my daughter and would like to get the plan/part-lists if it is possible. Thank you.
I working on a new version of it, send me an email at bgoknee@comcast.net for more information
Very good
Hello from Brazil o/ very interesting videos :0
Hello Brazil, nice to hear from you
Please correct me if I am wrong! If you double the weight, and double the pulleys, the pulling power would stay the same, but halving the travel?
yes, that is why there are two strings supporting the driving weight, giving it double the run time. If I doubled them again it would halve the travel again. I figure the way it is set up now runs long enough as a demonstration piece.
Bruce is awesome
Muy bueno
Yes. But how well does it work at sea?
Hello sir. Did you invent this design or used another? if you used another, what is the design called? thanks and God bless!
Is it possible to buy this ?
i only see the forces of the weight turning the the wheel the with the teeth. i dont see how that wheel with the teeth is helping to move the pendulum or the wheel at the top its attached to
1:00 omg that clock needs a service badly
What is the importance of the big wheel in the upper of the board, and thanks
I wanted something more than just the pendulum swinging back and forth, in the future I plan to add additional movements
@@YeanyScience ok👍, thank you for your big effort to learn people💙😊
Cool, like a clock escapement
that's what I was aiming for, I have several mechanical clocks around and were always fascinated by their movements, I wanted to show it on a simpler scale
@@YeanyScience cool
Bruce, please add a device to this latest project that ensures the wheel can turn only in one direction. This is a question I've always had: how did an engineer ensure that a steam locomotive's pistons were driving the wheels in the same and correct direction?
Quite a conundrum. I don't think anyone built a single cylinder loco, there's at least two. If these are coupled (via the axle on the drive wheels) you can build the machine with a 90 degree phase relation between the two. That solves the problem. For a single cylinder you can either kickstart the flywheel in the desired direction or very gently let it run backwards part of a turn and then slam the breaks on and restart. I think the latter was done for some giant beam engines. Not easy to kick start a 200 ton flywheel! I think the pumping station I visited had a smaller engine as a "starter motor".
How could you make it quieter?
5:15 Well that is nightmare fuel.
Mr. Bob, do you have any design patterns to replicate for homeschoolers?
I am working on a second video hat will go into construction advice. I plan to post it next week
If the 2nd law of thermodynamics and every other physical factor that can slow down and eventually stop the thing is ignored can this machine go on forever?
GPE Will run out eventually.
No. The supply of energy in the Universe is finite.
Hi Bruce, do you have plans drawn out for this? I want to replicate it.
I am working on a better version and hope to post it with some free plans this summer
What about an escapement generator to produce electricity ?
On a larger scale ?
Good idea ! Where the energy source can be the difference in water level of the tides, for example.
if theres anyone close to unleashing mysteries of perpetuum mobility its got to be you!!
Genial,
What's the price. I wanna purchase all of these.
It makes me think of the things that musicians keep on top of a piano to keep time.
on the turning wheel just add 12 small neodymium magnets and have it run across some coils of wire. try to get 12 volts and put that 12 volts into an inverter to power things.
Physically not possible. Say if the weight is moving down at 1 cm/s and is about 1Kg, it produces 9.81m/s^2 * 1Kg * 0.01m/s = 0.0981W of power. ~100mW is probably enough to light an LED but that's about it
i bet you could attach a tiny generator and get it to light up an LED.
You might need to scale up some of the pieces to get enough torque to generate power but I bet you could do it.
Yea, it would be fun to see how much electricity it can generate.
Wonderful idea sir very super🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆
harika mükemmel
очень интересно.
Welcome
Good
Tie a string to a water bucket perched over a bed and this would make an effective alarm clock for parents.
Hi
I realized that you could have the Trammel of Archimedes in place of the fly wheel?
I kept this one simple as a learning experience for me.
Is there a pattern available for this
there is a second video that gets into how to build it
👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼
Love you Bruce. Just curious though, have you come up with a provable way to demonstrate that rockets work in the so called infinite vacuum of space yet?
It's already be done, by doing it.
@@Cadwaladr How do you know?
Oh lord, we have a space denier here. Sigh... Must be a flattard.
This is trivially simple. This video th-cam.com/video/dH63JTRvX3s/w-d-xo.html
shows
00:30 rockets travelling horizontally in air go 50 yards or so.
01:00 rockets travelling horizontally in water go 2 yards or so.
We know a rocket would go 0 yards through solid rock.
We can graph the results, plotting distance against density of media and show the less dense the media, the further the rocket can travel.
QED.
@@fattmouth7715 Space X is showing how it's done on a near weekly basis. Rocket engines work on the principal of reaction- the force applied by doing work on a mass. The reaction mass in a rocket is provided by the combustion products exiting the nozzle. The force with which it leaves the nozzle x its mass provides the impulse that drives the rocket forward. It requires nothing to push against. If you were in space and fired a rifle, you'd be propelled in the opposite direction of the bullet, just like you are on Earth- it's called "recoil" in that case. But I know you're one of those who thinks you have all the answers and think everyone else is wrong, so I don't expect to change your mind. Fortunately, no one with any credibility takes you guys seriously- all you can do is rant and rave online, which is fine. At least you're harmless (where astrophysics is concerned, anyway).
Ve mi video de mi canal eh tratado de replicar el sistema más pequeño pero no se porque no me gira la rueda, no tienes planos en pdf del de madera para hacer uno completamente igual al tuyo saludos desde mexico, me has inspirado mucho pero algo me equivoco pero si tuvieras en pdf o de alguna forma las distancias de las partes, los ejes en la tabla principal, y dimensiones de cada parte tube que repetir varias veces la vieja y aún no estoy conforme con el resultados saludos
@Wintergatan sent me. :)
5 24
Make something which contains many kilowatt hours energy if we use a hydraulic jack for winding up the spring and a dynamo give energy for 12 hours easily 50 hz 250 volt 16 amp
So energy crisis become equal
If you changed the flywheel into a gear, or used a pulley system to make it drive a gear, could it run some automata such as your flag waving device?
👍👍🌹🌹💯
we can use axle with the screw wheel instead of string!
yes, this was a first build and tried to keep it fairly simple, now that it works I have plans to add more to it
Nice! Could you get enough power from the flywheel to run a small generator to charge a battery to run a electric motor to pull the weight back up again?
might be able to if the rotational wheel is a magnet and coil set up with a large supercapacitor being charged and released to a motor to pull the weight up again...