Homemade bimetallic strips - Thermostat demonstration // Homemade Science with Bruce Yeany
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- čas přidán 11. 09. 2024
- Bimetallic strips bend due to the uneven expansion of two bonded metals. In this video, we are taking a look at making what I call bimaterial strips. Aluminum glued to paper will behave the same way as bimetallic strips and can be used to making a light bulb blink on and off. The frequency of blinking can vary according to the type of bulbs used, the amount of heat they produce, the construction of the strips and how close the strips are to the heat source. Generally, the time needed to blink on and off can ranges about 20 to 30 seconds.
I always wondered about how these things worked.
Thanks Bruce.
jim renderer see my channel i showed how to make this strip
Lifelong mystery solved! I love your practical demonstration models. Absolutely perfect.
So easy, so simple, so complete, thank you very much, Sir.
Thank you we are using this for a group project and we are crediting you
Many hygrometers also use bi-material coils, where one side is affected by airborne moisture and expands and contracts depending on moisture absorption / evaporation.
Wow... That was great.... Allthese years and that simple!!!!
Dam, Bruce those are some pretty thick strips you got there
wow, I'm seeing a lot of really simple "science experiments" on this channel that I haven't seen before... The ball rolling on undulating tracks, the dart gun one and this are my favorites so far...
Wonderfully demonstrated and explained principle of the bimetallic strip switches. I also liked the range of the applications that you showed.
.
2:55 when you're in the middle of Netflix & chill and she tells you she likes The Big Bang Theory
Hhhahhhhhhhhahhhhhh
I wish my teacher taught this kinda stuff.
But even in highschool it was books for the most part.
girrrrrrr2 Open any electronics textBOOK and you will find this concept
Indrid Cold I believe you're mixing up public and state school.
Public schools charge fees.
State schools are government run.
It is nice, Lot of application can be used with switch.Cold bi-metalic and hot bi-metalic. Get us few cold bi-metalic for cold room fan push off.
Thanks a lot!!!!. I did not have money for a thermostat, but now, thanks to you, i can build one for a dryer machine. Thanks for sharing.
Please can you tell me how you make the thermostat please
I am still learning from you after all these years! love the video!!
Hi Jen, thanks, I thought I'd share a few ideas on youtube and got carried away.
+Bruce Yeany (Yeany Science) yes you sure did!
i sure glad you did!
don't you have any other hobbies? lol
i am also
I don't like when people get distracted with minor details and loose the hole objective. Forget about the adhesive , please, discard it's reaction, and pay attention to this beautifull theacher i would have love to be a student of any class he teaches in. Love you Bruce!. With Hope , many teachers would learn to be as practical, fun, deep, creative, didactic and dedicated as you are. Thanks for sharing. Pablo from Argentina.
Thank you, I appreciated your other comment also. After 40 years in the classroom I still am just amazed now as when I first started teaching how the beauty of how all these objects behave, I am just thankful that I can share it with a larger group than just my students, I never imagined years ago that I would someday be sharing my ideas with people far from and yet here I am writing to someone from Argentina. thanks again for your comments- Bruce
very nicely described with practical application. thanks Bruce !
Another example would be the turn signal flasher for a car. But instead of heat from a bulb, its current flowing through the bi-matalic strip that makes it bow, making and breaking the circuit. However, some newer car use timers, especially cars with LED tailights, because of the low current usage.
Hey Mr. Yeany, your video was very simple and fun to understand and learn. This sure helped me a lot, and I couldn't express enough gratitude, that you deserve. I found this video very well produced and also liked how you explained every details. Thank You, Sir!
Paper glued to aluminium acts as a bimaterial strip? Nice
You did real teacher role ! ( make difficult task easier ) Thumbs up !
Thanks a lot dear Bruce for such wonderful explanation. Really loved the way you showed how a bimetallic strip works ! It was just 25 sec and I hit the like button and subscribed to your channel as I instantly fell in love with your pedagogical skills.
Cómo siempre, excelentes experimentos! Gracias!
now I understand the trick of bending forks and spoons
Fantastic explanation.
very creative and useful
thanks a lot was needing this type of video
muy bueno profe!!!
Excellent and oh so simply and effortlessly done. #BORNTO TEACH!
Thank you very much for this video, sir.
Useful video to understand the concept
This is just beautiful
Thank You Very Much Sir
Just studied about it and saw your video. Loved it.🙏🙏🙏
u got a new subscriber sir! why the hell my science teachers didn't teach like this!? :(
u are now lucky to get good teacher
brilliant. glad you're back.
I'm sorry, hope you're better now.
I like your work sir!
Tech kids should never lose this knowledge in this age of Arduino and Raspberry Pi
What? What does Arduino or RP have to do with that?
awesome video
Excellent!
great.. nice demonstration... thanks
EXCELENT!!!!! thanks for sharing, can you tell me where did you buy the Strip?, regards
So you can intentionally unstick the tape from the grease paper with heat, right? I've ordered a roll, will be doing some experiments, you've inspired me! :)
Bruce, as another of your "fans" mentioned this is another demonstration of "free energy" (gosh I hate that misnomer) as is your solar motor. I think you could adapt this bi - material method to a similar type of thermal acoustic motor. Not piston powered like a Stirling engine think more like the rubber band spoked wheel or over balanced wheel, cool on one side warm on the other, the curling of the materials could effectively shift the weight to one side of the center of rotation. What's hot and cold naturally? Many things, sun and shade, evaporation, condensation are a couple of simple ones people forget. "Energy" is all around us and (apparently it peaks in children, lol) inside all of us. Many common consumer packaging products are bi-material. But of course as we all know ALL energy is "free".... It's the collecting and distribution off for which we pay.
LOL, yes, I know any time I use the term "free energy" I am in for a host of complaints or comments. . I hadn't thought of using a solid for the expansion properties but it sound like a good idea. I want to give that some thought, Thanks capawackio
sir as the brass material is expanding than what it helps it by bending?
does it increases the surface area?
isnt it too minor increase in area?
Wow, great video 👌🏼
BRUCEY!
you ever juggle 3 spools of yarn? it weaves it as you go and makes a record of the past!
your ladder climbers/ bean counter abacus dudes are really cool.
there's a cool video of a scarf making machine at a train stop that you power with bicycle as you wait for your trains and it followed a jig. Thinking about your line planes and 1 sided dice that work as crochet hooks still lol.
I'm a little rusty at at it but I will have to try my hand at the juggling balls of yarn. Also would like to see the scarf making machine, you should record it and upload it
Great video. Now I am wondering if there are materials sensitive enough to work as an actuator to vent my future greenhouse when it gets too hot. You always get the brain buzzing Bruce, thank you.
I can get these to work for a few days, haven't tried for any longer time. If I were using it for something like you suggest, I'd probably use an old bimetallic strip out of a thermostat. WIth the ones I made, I think the moisture might be a problem with the paper
Bruce Yeany I appreciate the feedback Bruce, and for that application of opening a vent and being durable I would definitely go bimetal as per the beginning of your video. There are beeswax pistons out there, but I like this thought and I know there are some old thermostats in the loft of the shop Thanks Again!.
Nicely explained thanks sir
it's very helpful lesson
thank you very much
Great job
sir what will happen if we put a layer of iron in both sides of a a brass strip?
New subscriber; great work Bruce.
thanks Paul
Muchas gracias.
A great idea to turn very complex phenomena into easily visualized examples.
Hopefully, 1 student in 1,000 will become intrigued enough with the result to become interested in the complex calculations that justify the results. That student will learn
and this alone justifies the effort made by Mr Yeany.
Good Thinking Sir.
The other 999 students will be mystified , 10 of them will be satisfied with an scientific (boring?) explanations ; 989 will NOT comprehend, the explanation will be B-O-R-I-N_G,
989 won't give a sh*t anyway.
observerms
I broke my thermostat, the toaster looking one, and now my heater isn't working. Can I bypass the thermostat? Connect the two positives and two grounds found?
Simplest circuit breaker replace fuse and it can be use as high current low frequency high power microwave and radar
wow im very impressed sir
Hey Bruce! I've been thinking about motion toys like your 2d sand hourglass frames and solar motors. I'm playing with bamboo and water ideas (kinetic fountains) ooh that sounds cool when I phrase it like that. The idea I have in mind right now is to do a long term 'this path, that path' type of water drip distribution system with shishi-odoshi, or dear scarers, the clack water bamboo pivot fill up till it tips-thing-trick, along with thin strips of bamboo that alternatingly get soaked in water and bend or dry and restiffen, and as water drips into different paths that are always changing randomly (kind of like double pendulums do, but maybe with the design of a loose pyramid / pachinko type layout
reminds me of the champagne pouring trick, the cup that runneth ov-a
shishi pachinko odoshi inari
Bruce if you have any access to bamboo sticks with a decent diameter, cut to a length you can comfortably swing around, and drill (burn actually works well), and maybe remove a couple nodes to make longer air columns inside the stick, it makes a really pleasing song stick or dream reed OOH I like that name too! thank you bruce you're so easy to talk to you know that?? gosh are you a genius or something how do you do it. Thanks for the help. but that stick is so much fun to swing around and try to hit different notes with, a little whipple of the wrist and you can get trills, smooth swings with the right clip to get wind are really satisfying, you can make fast space ship sound by going back and forth, or long space ship sounds by spinning in a circle smoothly. I make staff flutes sometimes and this is an easy variation, my mom's random holes in sticks even sound good, and they're always so unique, the sounds they make! from George Lucas to Jean Luc to mars rover the variations are endless!
lol like wtf does it only make spaceship sounds kid??? why???? haha love you bruce
helpful , thank you
nice and helpful!!
Please what is the name of the paper you use as metallic sheet. And where can I get it. Am waiting for your reply. Thanks
it is aluminum tape, it is like aluminum foil with adhesive on the one side, if that is not available you can use aluminum foil and attach the paper to it with adhesive spray or large paper stickers
thank u helped me
Wow.. Thanks a lot...
:O WOOW COOOOL YES WELCOME !!!!!!!! GREEN (Y) * * * * *
sir why we use two metals like brass and iron for thermostat?
does we use single metal for thermostat
the brass and iron expand at different rates, thermostats use the bimetallic strips also, only they are curled to make them fit easier
can i use it in homemade heated insoles?
Super
Nice 💪
tnq sir
For demonstration purposes so viewer gains clearer understanding best to heat bimetallic strip equally on both sides, so viewer is not given to think high heat is softening metal strip which is then acted on by gravity. Regards.
i like that practical
cool
Thank you so much brother. I have gained a better understanding of bi metallic strips. May you always follow GOD and His guidance. Keep safe
Why all that plink plonk disturbing music noise in the back? I may leav channel!
How can v maintain 37degree
can memory wire be used for this us as well?
I don't know, I never tried it. Hopefully someone else may answer this question
this was the foundation of memory wire that Bruce Yeany just demonstrate for us laymen . and yes we have been using memory wire for the last 60 years in the commercial sectors. look to the old heat thermostat during the time mercury thermostats were used in the public sectors of home heating.
and even after 60 years? those thermostats still work with perfect timing of memory using heat factors despite the degree of oxidation,
. here could be a fun experiment. get and old thermostat, remove the mercury bulb. use what is left over to turn your lights on during the evening hours by an electrical contact and they will turn off during the day light hours where the temperature will change. that is memory wire using the physics of thermal dynamics. to day? we call them coffee pots. the same memory wires
i might add memory wire was invented by tesla. i was curious so i looked up his patents. but only for i was looking for his ray gun he gave to government and found that he always included in his physics the memory of heat in his wires. the ray gun he invented can be found in most any home on the planet now. it is called the megatron. found in any micro wave oven. or any radiant tower such as a cell tower. with out memory wire we would not have instant communications today. nor silicate computer chips. thus the name silicon valley in California was later created for its understanding of using silicate instead of metals. silicates changed the face of Tesla's discovery's to crystalline uses involving polymers. a much cheaper and available compound then metals. and yet held a greater perfect degree of persesiton when heat was presented. thus in 1968 in the public sector the first video game called "PONG" was invented to the mass publicly.
whom am i? i never graduate from high school. lower learning was a lie. and college perpetuated that lie. even though i had to pay them 260,000 dollars for there lies. and never was given a degree.
"Wooder"
wow free energy!
Nice demonstrators as always! You can also use wrappings of chewing gum strips (here is what I mean: bit.ly/2iDKg4G ). They tend to have very little heat capacity so they will bend faster.
Thanks Lasse, I will give them a try
0:39 yup just a bit too long hey
Is it just me that gets bimetallic and dielectric mixed up
Was ist das ein metal.
all luminous energy created radiation, here? your showing how to abate those radiant factors of energy's released. and your showing 3 different forms of physics. in unison. your on to something if you truly understand what your doing. as your profession is in teaching, which i love that you do that. i do have a question for you.
what do you do when you find a "vonderboten"?
I think I would sit back and enjoy and marvel as I have always done.
me too
1:49 u on a water shortage or sommin more water pls
The glued one is actually a tri-material strip, lol.
LOL, my mistake
Sean James all of them with an adhesive are trimaterial.
*aluminium
🌟🌹🌟
F
اني الوحيد عربيه 😊
Conica_can
Cupapi
Can anyone test this out and give feedback? Search: androidcircuitsolver/app.html
cool