@@zeroone171 The curriculum was actually made almost 30 years ago, in 1990. 10 years ago is just when they uploaded it to youtube. Of course this only supports your point further though, the other guy was just being a whiny bitch about the noise. I definitely never noticed anything even mildly distracting, much less "unlistenable." Probably just some kid who's only ever listened to audio recorded after 2010 with crystal clear audio recording equipment.
boowonder888 TH-cam. Google. An internet with literally countless websites containing free guides and reference materials all made readily available to anyone 24/7/365?? I don’t think anything good would’ve came from it if I had that type of knowledge at my disposal when I was a kid to where all I had to do was literally reach into my pocket at any given time and pull out a phone to get any question I could ever possibly think of answered immediately. That would’ve most definitely been a recipe for disaster
Fantastic couple of teaching videos. Thanks a lot for posting. I just watched them with my eleven year old son, as he is off of school due to the Covid 19 virus. He enthusiastically took the whole lot in. Now he's really keen to make some models with his lego bits.
Basics of transmission: 1:1, output will be the same as the input. 1:2, output will be twice the input. So one input rotation will be two rotations of the output. Effectively covering more distance in the same amount of time. Speed is distance x time and so you get a higher speed. 2:1, output will be half the input. How does this multiply torque? IDK, it just works.
A really good video. Gives you a good idea about simple machines. People who cannot applaud the beauty of physics and the brilliance of the human mind shouldn't bother watching it.
Nice video , he should mention that when decrease the speed it increases the torque. That's how a car transmission works. When a car starts running it engages the driver gear to the largest driven gear and then starts shifting until get to the smallest one.
I like how giant gears turn tiny gears fast and when you connect another giant gear to the tiny gear, that giant gear spins as fast as the tiny gear. Continue this process a hundred times and you get an extremely fast spinner. One day you could just turn a handle slowly for a minute and get a fast spinning fan for a minute I just love gears
Thank you for this very informative animation. I live in France and I try to teach the operation of the gears to children of ten years. My animation : Engrenages - 1ère leçon (cours élémentaires)
Great Video clip! Forgive me for butting in, I would appreciate your initial thoughts. Have you tried - Rozardner Lucky Interview Reality (just google it)? It is a good one of a kind product for firefighter interview tips minus the hard work. Ive heard some great things about it and my cooworker at last got great results with it.
You can try to think of it as relative rotation speed. If red gear is spinning 2x faster than yellow, and yellow is 1.5x faster than blue. How much faster is red than blue? (2red/1yellow)*(1.5yellow/1blue) = 3red/blue, as the yellows cancel in out. Resulting in 3 to 1 ratio red-to-blue.
4:16 wouldn't puting another red gear in the middle keep the ratio and reversing the left red gear? Its like, the same thing he did in the video but with a 24 larger gear...
Nooo.... It's just a random video that you clicked on to look smart while you pick your nose... Yes you're learning! Learning is when you get from confusing to nodding your head in understanding... :o
I don't understand why we put the engine on the smaller gear. For example my quadcopter use the small gear for the engine and a much bigger gear for the propeller. That mean that the engine must run really fast to allow the propeller to do one revolution, it's a waste of power no? Because for a bicycle it's the opposite, the big gear is for the engine (the legs) and the small for the back wheel. If the gear of a bicycle would be built like a quadcopter that would mean that we must spin the pedals really fast to do one spin of the back wheel.
The way you connected your engine to the propeller increases torque but decreases speed, if you reverse the gears, the propellers will spin faster, but the torque will decrease..... Personally I think that having high speed is more important than having high torque for a quadcopters, as long as the quadcopter is light and you don't use it for carrying stuff. However, if your quadcopter is relatively heavy, or you want to rig a camera to it or whatever, then you should keep the connections the same, to have a high torque to be able to carry the heavy weight. I hope my reply helped you, sorry if my English is bad, It's not my first language.
I also forgot to mention that high torque is important if you are going to drive your quadcopter in a windy area, because even if the propellers rotate very fast, if you have low torque, the wind will easily manipulate the speed of your propellers making you lose control of your drone
it depends on how much tq your propeller needs. do you know how much resistance the air creates on the propeller? it might need more tq than rpm to create lift. speed/rpm is nice and all, but without tq, you aint moving air
Because the smaller gear is half the size of the bigger gear. Also that smaller gear turns once but because the bigger gear has more teeth it takes longer for the bigger gear to reach what you want it to.
I always wonder how speed reducer works in motor, I mean how do they Reduce the speed. I didn't know that different size of gears will have different rpm. it's awesome. im not in mechanical engineering btw.
The first wheel was invented in the age of the Flintstones... well it was more like a rounded up square, but they had it :) At least Hannah-Barbera taught me that when i was young ^_^
This is the best video on gear ratios and compound gears, and it seems so ancient.
accurate never gets old
actually, because of the music, it was probably made in the 90's.
Explaining science to kids are the best videos from back in the day.
its official, youtube is great.... If only yt was around when I was a kid!
youtube has always been great
bet our ansestors will be jealous
@@zeroone171 The curriculum was actually made almost 30 years ago, in 1990. 10 years ago is just when they uploaded it to youtube. Of course this only supports your point further though, the other guy was just being a whiny bitch about the noise. I definitely never noticed anything even mildly distracting, much less "unlistenable." Probably just some kid who's only ever listened to audio recorded after 2010 with crystal clear audio recording equipment.
boowonder888 TH-cam. Google. An internet with literally countless websites containing free guides and reference materials all made readily available to anyone 24/7/365?? I don’t think anything good would’ve came from it if I had that type of knowledge at my disposal when I was a kid to where all I had to do was literally reach into my pocket at any given time and pull out a phone to get any question I could ever possibly think of answered immediately. That would’ve most definitely been a recipe for disaster
@@richard102879 It is a disaster. Kids are going nuts and living and dying by their online status. :P
Fantastic couple of teaching videos. Thanks a lot for posting.
I just watched them with my eleven year old son, as he is off of school due to the Covid 19 virus. He enthusiastically took the whole lot in. Now he's really keen to make some models with his lego bits.
Best, simplest & most interesting information on gears ever seen ,read or heard. More videos please. Best appetizers for brain hunger!
Videos like this make me miss my high school science classes. Thanks for uploading.
I recommend playing at 1.25x speed. Speeds stuff up a lot..
Good video though!
That was helpful thanks
@@omarmallah5686 lol
Shiv Ahuja no one asked you either.
It didnt speed it up, gear ratios were still the same!
Lol
28 years old and just understanding this stuff now......
i really wish my school actually taught me stuff.
Basics of transmission:
1:1, output will be the same as the input.
1:2, output will be twice the input. So one input rotation will be two rotations of the output. Effectively covering more distance in the same amount of time. Speed is distance x time and so you get a higher speed.
2:1, output will be half the input. How does this multiply torque? IDK, it just works.
A really good video. Gives you a good idea about simple machines. People who cannot applaud the beauty of physics and the brilliance of the human mind shouldn't bother watching it.
can you get more cheesy than that...
Ranjana Gauri M guu
mokada
what a wasteman
I don't know how gears work so I looked this up its really cool
Ah yes. I'm finally ready for tomorrow's midterm. :)
*goes to bed*
*shows up to class bright and early*
*the midterm was 3 weeks ago*
Nice video , he should mention that when decrease the speed it increases the torque. That's how a car transmission works. When a car starts running it engages the driver gear to the largest driven gear and then starts shifting until get to the smallest one.
Very good description of a spur gear.
I like how giant gears turn tiny gears fast and when you connect another giant gear to the tiny gear, that giant gear spins as fast as the tiny gear.
Continue this process a hundred times and you get an extremely fast spinner.
One day you could just turn a handle slowly for a minute and get a fast spinning fan for a minute
I just love gears
And that's how grinding stone wheels are made for sharpening tools.
And then connect the contraption with a flywheel to create a longer-lasting fan
You'll need a lot torque on that handle tho.
@Shiv Ahuja force, just search for any insane gear reduction video where they try to rotate the output and it's impossible
this totally helps with my wood shop homework!
honestly i was just interested on how gears work and this is a fantastic video!
Very helpful, I've been working on something using LEGO and I needed to research how to slow down gear rotation.
thanks i learned a lot my science teacher sucks
Edit: p.s i hate school
I can watch this type of videos for fun!
Explaination is very good ❤
Finally I can go back and watch transmission videos for I have understood gear ratios :D Thanks!
as the number of gears in compound gear box increases the torque of last gear also increases..
Thank you for this very informative animation.
I live in France and I try to teach the operation of the gears to children of ten years.
My animation : Engrenages - 1ère leçon (cours élémentaires)
Awesome. thank you and greetings from Brazil
Good video. I love gears.
Excellent. Very informative.
This video is very educational.
This video is just excellent.
So...a high gear ratio means, essentially, that it takes more time for your out gear to complete a rotation than your in gear.
wow my high school physics teacher sucked
Indeed.
Great Video clip! Forgive me for butting in, I would appreciate your initial thoughts. Have you tried - Rozardner Lucky Interview Reality (just google it)? It is a good one of a kind product for firefighter interview tips minus the hard work. Ive heard some great things about it and my cooworker at last got great results with it.
Enter.a.name.here 😬
There's a 1920, 1930 one, even easier to understand.
I want the book that goes with this video. Anyone know about it; Name, publisher, year of publish? What schools used it perhaps?
Found it, I think if anyone wants it
www.awim.org/files/curriculum_mtc_intro.pdf
Thanks
Thanks You're the hero we need
@@ForeverLaughing221 Thanks.
Wonderful and so educative video. Gracias. The Planetary Society, Patagonia, Argentina.
wow amazing and more efficient than todays videos
great video and very clear . l Like this video very much.
Excellent video Sir :)
This video helped me through my physics homework on angular speed
nobody cares nub
Densetsu No, specifically you don’t care, I personally care for this guy, and the 3 other people including me liked his comment.
madame mauve 🔥
One of the best of videos I have seen in you tube .Great explanation 🙌
Pamudu123 Ranasinghe 🔥
Is pulley system and gear system same?
it goes staight in my mind
it was so so so so so helpful
Adding extra gears also adds extra stress to the motor right?
Hope so?
Maybe?
I want to increase the RPM so it was possible to rivers this process ?
Whoever invented the wheel is a genius
I am here for school but I am smart I like this
Is there anyway to reduce speed without using gear, belt, chain
great video!
Could someone explain why you multiply the two gear ratios together?
because ratios matter
You can try to think of it as relative rotation speed. If red gear is spinning 2x faster than yellow, and yellow is 1.5x faster than blue. How much faster is red than blue?
(2red/1yellow)*(1.5yellow/1blue) = 3red/blue, as the yellows cancel in out. Resulting in 3 to 1 ratio red-to-blue.
So useful I love it keep it up 😊 😃
Gracias a este video estoy haciendo un pto trabajo de clase xD
LIKE SI VIENES DEL 2020 XD
Resourceful....it helped me a quite a bit👍
Great video 👍
Can anyone help? What is the strongest gear in a car ? Is it first gear?
Absolutely yes
Which app use?
Very nice teaching 👍
A really good video
Fun fact: in Norwegian, we call a gear literally for a 'toothed wheel' = tannhjul
@Pridify Gaming
Sant sant
in portuguese too
8-5 has now entered the chat. GIRTH
Old is gold
How to multiply torque?
Thank you. But do you think you can add other gears than just circular gears? What about corkscrew gears and such.
It started off like "ok i got dis" and quickly devolved into "da fuq is dis? da fuq is dat? wat is going on?"
+Bells Jingle i know right
i understand this and im a kid
Thomas Green
no one cares, thomas
got it
me too
Thank you for the video!
What is the name for the theorem explained at 1:40
Stunning to use in class!
GEARS ARE WHEELS
Thnx for video... It's really helpful
4:16 wouldn't puting another red gear in the middle keep the ratio and reversing the left red gear? Its like, the same thing he did in the video but with a 24 larger gear...
I wasn't a live when this video was made
Get off youtube then.
what do you want a medal for that?
Then why the hell do you have a youtube account.
This video was made in 1990. I get the feeling most of the trolls giving you crap weren't born when it was made either.
Nooo.... It's just a random video that you clicked on to look smart while you pick your nose... Yes you're learning! Learning is when you get from confusing to nodding your head in understanding... :o
how can we speed up the movement of those gears in gearbox but with lots of power?
Start with larger gears and move to smaller if a larger gear is moving fast that means the smaller gear goes twice as fast
It's the opposite
Brandon Gibson what about its strength? does the strength levels up?
The strength depends on what kind of gear if you use a lot you can lift a lot but if you have a few good strong ones you won't need as many
I don't understand why we put the engine on the smaller gear. For example my quadcopter use the small gear for the engine and a much bigger gear for the propeller. That mean that the engine must run really fast to allow the propeller to do one revolution, it's a waste of power no? Because for a bicycle it's the opposite, the big gear is for the engine (the legs) and the small for the back wheel. If the gear of a bicycle would be built like a quadcopter that would mean that we must spin the pedals really fast to do one spin of the back wheel.
The way you connected your engine to the propeller increases torque but decreases speed, if you reverse the gears, the propellers will spin faster, but the torque will decrease..... Personally I think that having high speed is more important than having high torque for a quadcopters, as long as the quadcopter is light and you don't use it for carrying stuff. However, if your quadcopter is relatively heavy, or you want to rig a camera to it or whatever, then you should keep the connections the same, to have a high torque to be able to carry the heavy weight. I hope my reply helped you, sorry if my English is bad, It's not my first language.
I also forgot to mention that high torque is important if you are going to drive your quadcopter in a windy area, because even if the propellers rotate very fast, if you have low torque, the wind will easily manipulate the speed of your propellers making you lose control of your drone
it depends on how much tq your propeller needs. do you know how much resistance the air creates on the propeller? it might need more tq than rpm to create lift. speed/rpm is nice and all, but without tq, you aint moving air
+Chad W exactly 👌🏻
if the bigger gear is on the power source and is coneced to the smaller gear the smaller gear will move faster than the bigger gear
Why is it that the toothed gear of 24 teeth moves with half the speed as compared to the gear with 12 teeth......
Because it takes double the time to make a full rotation due to its larger circumfrence
Because the smaller gear is half the size of the bigger gear. Also that smaller gear turns once but because the bigger gear has more teeth it takes longer for the bigger gear to reach what you want it to.
The time does not determine the speed
Amazing video.........thanks a lot...
Educative👍
How can I find that book..... Not ebook !!!.
I always wonder how speed reducer works in motor, I mean how do they Reduce the speed. I didn't know that different size of gears will have different rpm. it's awesome. im not in mechanical engineering btw.
didn't the Greek and Chinese have bronze gears before De Vinci?
The Internet at its best!!
Just leaving a comment to let you know you are not the first one to get this video recommended in 2021😉
Nice video , my teacher is used this video to teaches students . I seen it already.
can you make a video when we are using a tower of three gears
great vid
Sometimes the simplest videos are the best to learn the fundamentals before diving into the depth of machine design
wow awesome
So to make speed, you need to reverse the compound combination to the drive train.
This video brought back my memories of courage-the cowardly dog
I'm doing this for school... :P
Byeah.
And I'm just here for fun🤷♂️
Same
Heck yeah, tnx to this I finally learned how wind turbines turn low rpm to high rpm for the generator. Tnx youtube.
why NO closed captioned in here video
good job !
Lol amazing keep up the work.
Btw make the pictures more clear.
Thanks for the video. great help
Excellent!
everybody knows that first wheel was invented in Mesopotamia.
leonardo da vinci lived in the 1400s-1500s....
Great vid
The first wheel was invented in the age of the Flintstones... well it was more like a rounded up square, but they had it :)
At least Hannah-Barbera taught me that when i was young ^_^
Very informative! Thank you very much!
soo gooood
😔🧏♀️🧎🏾♀️😭 watching a video from 16 years ago to pass
Hi sir very well described..
Kindly suggest the proper book for learning gears.
N I love it