ฝัง
- เผยแพร่เมื่อ 21 ก.พ. 2008
- Motorized Toy Car Challenge video devloped to illustrate concepts in the curriculum: gear speed and direction, circumference, diameter, radius, combining different size gears, driver gear vs driven gear, gear trains, gear ratio, gear friction, gear pairs (compound gears), lever arm, torque, rim force
old tutorial videos are surprisingly good at explaining concepts. straight forward and to the point.
That's old fashioned for ya
also, no annoying music
bananian 🔥
cvnic yes...
It's sad that 2 videos just taught me more than 2 years of science and engineering classes did
James Toomer yes, the vids are good
I was gonna say that these vids are really cool! For how old they are they do a great job.
This just shows how you can learn from the past and use it toward the future.
Yeah, I was gonna comment that like we never learned any of this is any science related class I’ve been in lol.
I was even starting to consider remaking the graphics of them.
I'm willing to use reduction gears for some prototypes on my picture dioramas and this info is ofls but pure gold.
The difference between schools and this video is that you look for it to learn about mechanics, and kids in schools have other interests than learning something useful. Thanks for the video. It is very clear and understandable.
Exactly, If school was just a library, i think more would get done. Schools and prisons have alot in common
Frank Sosa than learning something usefull? oh yea its bad that i learned programming more than german (im german and why should i learn to analyse a poem? its unimportant... )
but you are right, school should be free, where you can learn what you like
#DISTRACTIONS
This is the best explanation of gears, most leave out rim force . This seems like the only one that is completely correct. Thanks for the most accurate video!
The leverage concept makes it all fall into place.
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.
this is EXCELLENT for Home schooling
they never taught this in school at all
Relearning this for my test tomorrow lol
terry1919 👀
Wait what? What shitty school you went to?
my God, the quality of teaching in USA is thousand of times ahead than in Brazil, i wish i had such kind of class when i was in school.
greetings
who would dislike an educational video like this? sorcery!
All thats missing is good teachers and they they are found the definition of high school will change. Great video👍👌
I think he's very nice to show us all these science videos and is very smart. thank you
:D
So precise and entertaining.
10 minutes of videos = 1 month in a classroom
Outstanding video
Brilliant - thanks for uploading this!
absolutly brilliant! im working with wheels sizes and gear ratios at the moment
YES! Just the information I was looking for.
amazing explaination...............!!!!.................:)
So good!
Amazing!
This is so helpful! The video explained everything!
KEALING TIME PROJECT, HERE I COME!!!
Very very nice.😊😊😊😊😊🎉🎉🎉🎉🎉
Love the video
i love it man, thx for posting :)
Great explanation
Fantastic...
Thanks for making this video
hell yeah! i got 4 days till my 955 exam
Thank you Sir! :)
Amazing
this really helped me thnx
What is this wonderful commentary this explanation thx
Where can I get the book that they show?
Brilliant
Thanks!
this video was uploaded on the day i was born!
@3:20 is when it gets all confusing, when he added 1kg of weight on the blue gear, the blue gear should move the red gear because the torque is multiplied by a bigger lever arm right ? It shouldn’t be balanced
No, the small gear is pushing the large gear up where the teeth meet, which is leveraged to the same length as the weight that is attached to the large gear.
@@TeddyKrimsony that doesnt make any sense. The narrator says "if you apply 1 pound of force to the blue wheel" not to the red. So the blue gear is pushing the red gear. He also said "an equal force is being applied to both" but if you input 1 pound to the blue wheel, because of the increased torque you will get an output of 3 pounds from the red gear.
I think because they don't share the same rotation axis and the blue gear is bigger tree time than the red gear so the torque on the blue gear must be 3 time greater than the red gear
where is the funky music?
Thanks for the video! But shouldn't it be higher gear ratios provide higher speed but lower force/acceleration?
A higher ratio for example would be 10:1. The drive gear turns 10 times for each turn of the driven gear. This provides very high torque but very low speed. A gear ratio of 1:2 for example, or as expressed in the automotive world 0.5:1 would do the opposite. This low ratio would mean that for every turn of the drive gear the driven gear would turn twice. This provides high speed but very low torque. Think of a car in first gear (high ratio ex. 3:1), low speed / high torque. A car in 5th gear (low ratio or over drive, ex 0.8:1) high speed, but low torque. Hopefully this helps clear it up, it's so easy to get this reversed.
Old is gold...I just realised...
Yep very nicely made. thanks
So for ultimate towing power use a gear train starting with a small gear ending with a large wheel
Use a large wheel with a gear train starting with a large gear and going down
This is real science.
So, Metal Gear Solid is powerful too, right?
best video
9:48 Rotating restaurants and other useful things! What?! Very good explanation though.
As of a year ago, They are used for turrets. Such as those on warships
Thanks
But can someone please explain how we get such high RPMs in the first place? For example, I think table saws are like 5,000 RPM? How is that possible without the parts breaking?
thanks for the vid but im stupid at this im getting confused as you say pulleys are the same as gears in that they work the same way but they dont cus a pulley wong go the other way like a gear will so this is making me confused as im jsut looking for info on how pulleys work and wish you could give more info and examples on that and not the gears still great vid cheers
Oh man. I got lost...I'll figure this out. Eventually.
That's what you said in part 1.
Concerning the lever, load effect is vertical..now can this lever be used in rotational load effect; say can a 1kva motor be used to spin a 3kva generator with this lever system????
No, Kva measures energy, gears only transform between speed and torque the faster you spin the less torque you have and vice versa, and so in a generator the faster you spin the higher the voltage you get while the larger the coils/magnets you use the higher the amperage you get but also the more force/torque you need to spin the generator. And of course you're always going to get energy loses from friction so no, you can't move a 3Kva generator with a 1Kva motor, you're probably going to need a 4.3Kva motor to spin a 3Kva generator.
Most underrated video on youtube.
i didnt quiet understand that part where how a bigger wheel with equal size gear driven by equal speed and torque can move faster then the smaller wheel ? someone ?
The big wheel can roll farther with fewer revolutions because of its circumference, but the small wheel will take many more revolutions to get the same distance because it has a much smaller circumference.
GOT ME THINKING!!! So, what would happened if you add gears to a atop penny farthings bike????
Where do I find this book?
how can I find the book he's talking about in this video?
Invent a time machine then raid a 80-90’s high school
Library
Givo M 👀
What's the name of the book....
Can explain, rpm increase by cause torque decrease y!?
you do realize the narrator in 9 years older now
12*
Vittesh Asok yes, now he is 12 years older
@@liliacfury15*
holy shit, im learning so much
where to get teachers manual of awim ?
Kenapa sedikit ini bener bener manfaat .
What reason to reduce torque!?
To increase speed
2020 anyone?
can a bicycle tire spin which powered by USB fan motor ?
probably not enough power because USB supplies about 5v. You would need a bigger motor and more voltage to power it.
With enough gears you could but the speed of the tire would be too slow to stay upright
I might help people with designing gears someday. I study gears too you know. I might also learn more about other types of gears out there.
Can you share link of teachers mannual
5:14 "hweels"
5:14 "the hwheels"
I’m soo confused 😫
keep it simple and ride a unicycle lol
who in engineering class
WHİCH BOOK
wtf is "whuUeels" just say wheel dude
Thanks