Ever wonder how NASA gets the space shuttle on top of a 747? They use pulleys! License: Creative Commons BY-NC-SA More information at k12videos.mit.edu/terms-condit...
You shouldnt. As your level of study in a field increases, it requires more effort to explain things in a simple way. It's like asking you to explain terminal velocity//fields to grade 4 students.
Cool fact: In the 1800s you used to use elevators, no not powered elevators with tempting to be pushed fire alarms, pulley elevators. What you would do is sit down in it, and there would be a pulley system with 5 blocks. You would have to barely pull these 2 strings behind you, and speed up to the 2nd floor.
If we place them horizontaly one after the other up and down or if we place them vertically one below the other do the two orders have any difference in the lifting power or the lifting power still remains the same ?
Yes! Eureka! If you draw a parallel circuit vertically, it looks like a block and tackle! In the parallel circuit, the source voltage = the voltage through each branch, just like the force inputted into the rope = force @ each connection point! Thanks for seeing the analogy! And the pulleys divide the rope up into ‘branches’ so that the sum total of force in each branch of rope adds to the total load you’re lifting, just as current through each branch adds to the total current!
god this was so fun even if you're all so corny about it! keep in mind my comment is in 2020. there were movies about the end of the world in 2020 when this was posted... we all watched them then and now we're all living them now. crazy world.
MITK12Videos - I really liked this video....I want to dub some of your videos in Marathi language (an Indian regional language) if you permit, for education purpose in schools and collages. Let me know from your end.
I find it interesting that for me, it’s hard to accept the two being so analogous because current and voltage seem to be two different aspects of the same thing, whereas with the block and tackle, you’re dealing with two separate things spatially (person pulling and whatever’s being lifted). But that’s an afterthought I’m not too worried about. If you have any more thoughts, let me know! Thanks for watching my video!
88.8% cringe factor but this helps me out with my problem i have i was trying to use a 2 to 1 system to lift my mower in my shop but it was to heavy still so i tried a 3 to 1 and i don't have enough hieghth but this tackle/block system will work perfectly for me. Thanks for the video.
Take a look at a hoist. Used to lift engines in and out of cars. Ebay has plenty, I guess around 50$ or so new. It uses high strength chain, it has an advantage of about 20:1, and most importantly, it stays in position. You have to wind it to go down as well as up. So your mower won't end up on your head!
If you care about kids, you should learn more about physiology. A steady diet of quick video cuts and camera motion changes the brain's "wiring" and a human's attention span. You can create something interesting without creating something harmful.
the amount of cringe is a couple of 100 punds
You went to mit to learn this ? I feel like a genius now , thanks
lol
How do you get that authentic 1993 look on this video? I mean exellent work, audio, video, clothes, voices, everything 1993 👏🏻 👏🏻
Somehow I am no longer intimidated by those that go to MIT. I feel better about my life's lack of achievement
X
Lol
You shouldnt. As your level of study in a field increases, it requires more effort to explain things in a simple way.
It's like asking you to explain terminal velocity//fields to grade 4 students.
Fun video. I remember I was amazed when I first learned about pulleys in 5th grade.
pretty cool, pretty neat
I enjoyed the video, plus I learned something about pulleys which I can now use.
Cool fact: In the 1800s you used to use elevators, no not powered elevators with tempting to be pushed fire alarms, pulley elevators. What you would do is sit down in it, and there would be a pulley system with 5 blocks. You would have to barely pull these 2 strings behind you, and speed up to the 2nd floor.
so... the block and tackle its kinda like parallel circuits with a battery. Right?
If we place them horizontaly one after the other up and down or if we place them vertically one below the other do the two orders have any difference in the lifting power or the lifting power still remains the same ?
The sad Ryan cartoon at 2:12. XD Thanks, guys!
Thanks you very much
Very funny and informative video. Thank you MIT guys. :)
After wondering for years exactly why these work; I sort of understood but this helped tons. Get it! Tons?! 🙂
Very nice clear concise explanation
You put so much effort into the video, I love it. Thanks for explaining so well.
Yes! Eureka! If you draw a parallel circuit vertically, it looks like a block and tackle! In the parallel circuit, the source voltage = the voltage through each branch, just like the force inputted into the rope = force @ each connection point! Thanks for seeing the analogy! And the pulleys divide the rope up into ‘branches’ so that the sum total of force in each branch of rope adds to the total load you’re lifting, just as current through each branch adds to the total current!
such a good quality of image for a 90s video
I saw "Physics Hipster" and wanted to kms
now i have a craving for donuts....geeeze...thks i guess!!😃😄😄
PS. 300# w/your system reduces weight down to ...?
hi ryan
learned much from this but pls explain how the budget allowed you to get a crane
All this stuff with pulley ratios...
They must have been so caught up in that that they didn't realise the cringe:quality ratio was about 1000:1
good way to explain
I wonder if Pulleys can lift the Dorks away? 😂😂😂😂😂😂😂😂😂😂😂
@Waylon Wilson - N'TRIGGERED! 😂😂😂😂😂😂😂😂😂😂😂
@Waylon Wilson - N'TRIGGERED! 😂😂😂😂😂😂😂😂😂😂😂
@Waylon Wilson - WTF myniagga? You on the short bus? 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂
@Waylon Wilson - Did you take your pills today myniagga? LOL 😂😂😂😂😂😂😂😂😂😂😂
this is adorable
nice one
Pretty cool!
Hey! He's Ryan Normandin!
These are the technocrats.
god this was so fun even if you're all so corny about it! keep in mind my comment is in 2020.
there were movies about the end of the world in 2020 when this was posted... we all watched them then and now we're all living them now. crazy world.
MITK12Videos - I really liked this video....I want to dub some of your videos in Marathi language (an Indian regional language) if you permit, for education purpose in schools and collages. Let me know from your end.
Could you also dub it into English, so we don't hear their 'jokes'?
Nice one bab
I find it interesting that for me, it’s hard to accept the two being so analogous because current and voltage seem to be two different aspects of the same thing, whereas with the block and tackle, you’re dealing with two separate things spatially (person pulling and whatever’s being lifted). But that’s an afterthought I’m not too worried about. If you have any more thoughts, let me know! Thanks for watching my video!
We are learning about pulleys at school
88.8% cringe factor but this helps me out with my problem i have i was trying to use a 2 to 1 system to lift my mower in my shop but it was to heavy still so i tried a 3 to 1 and i don't have enough hieghth but this tackle/block system will work perfectly for me. Thanks for the video.
Take a look at a hoist. Used to lift engines in and out of cars. Ebay has plenty, I guess around 50$ or so new. It uses high strength chain, it has an advantage of about 20:1, and most importantly, it stays in position. You have to wind it to go down as well as up. So your mower won't end up on your head!
*_im kinda cringing_*
I feel like watching a kids video
:/
onde eu encontro pra comprar.
U must know what thats like, look at you with your gay ass anime pfp bitch
Lifting weight = pulleys + donuts
People are going to be really impressed when I bring pulleys to the gym
You can still do the gym lol
Whats her full name?????
Why do u wanna know
Nerd alert! Phisics tho is 😎
pero que carajo acabo de ver???
4:30 getting a definite columbine vibe...
purrrr
What?
I'm so fucking confused with why they made this. I can't even fathom why they say when I grow up when they already look 25
Glad you understand and had fun. Not the same as teaching it. Pretty lame and lost teaching opportunity.
I'm from india. How can i get this equipmemt.please help me
If you care about kids, you should learn more about physiology. A steady diet of quick video cuts and camera motion changes the brain's "wiring" and a human's attention span. You can create something interesting without creating something harmful.
Lol if this is MIT then i dont think MIT is anything special thats for sure
All you proved was that sheaves aren't cool. Knowing the difference between sheaves and pulleys isn't even cool.
cringe but educative
Physics is cool, but you're not.
Lol so cringe
Informative vid but could have been so much better without all the childish stupid talk.
REALLY LAME
so much blah blah blah, not cool