- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
Posted on 12/6/07 at 3:27 pm to VanRIch
quote:
I understand this, so you think the point of the test is can a planes thrust overtake the speed of the conveyer belt. I don't think thats the point of it. I think its meant to see if the plane takes off in relation to the air around it.
Thank you. That's what I was getting confused on. If the plane's not moving forward then there is no way it's flying. If it moves forward then sure it can fly.
Posted on 12/6/07 at 3:30 pm to LSU Fan 90812
quote:
no guy. you're pulling your self forward. The conveyor belt would be pushing back at the same force, only problem, is that its against the wheels of your roller skates. so it would just make your wheels turn faster.
Thinking about it that way. I think I just changed my stance on the subject.
Posted on 12/6/07 at 3:30 pm to VanRIch
quote:
OMG, I'm fricking done, you guys really are idiots.
And you're the one hitting below the karma line right now.
Posted on 12/6/07 at 3:31 pm to Dale Murphy
quote:
If it moves forward then sure it can fly.
It will, just the same (or really close to it, minus some differences in minor frictional forces) as if it was on a concrete runway.
Posted on 12/6/07 at 3:32 pm to LSUBoo
every time I think everyone understands, someone is an idiot.
Posted on 12/6/07 at 3:32 pm to VanRIch
quote:
I understand this, so you think the point of the test is can a planes thrust overtake the speed of the conveyer belt. I don't think thats the point of it. I think its meant to see if the plane takes off in relation to the air around it
no the point is that the speed of the conveyor belt has no bearring on the speed on the speed of the plane. the wheels render the speed of the conveyor belt moot.
the wheel spins faster. the plane moves forward as if the conveyor belt isn't even there.
here's an exercise. get a pencil. place your hands together as if you were praying, with the pencil being between your palms. place your left hand to where it faces down towards the ground, and your right hand is facing upwards. Move your right hand one way and your left hand in the opposite direction..
Tell me what happens to where you right hand is, in relationship to the starting point.
This post was edited on 12/6/07 at 3:39 pm
Posted on 12/6/07 at 3:33 pm to SG_Geaux
quote:
Thinking about it that way. I think I just changed my stance on the subject.
welcome to life above the karma line.
Posted on 12/6/07 at 3:34 pm to VanRIch
quote:Dude, it's simple physics in four easy steps:
OMG, I'm fricking done, you guys really are idiots.
1. What would happen to the plane if there was no friction between the plane and the conveyor belt?
It would remain stationary relative to the ground.
2. How much force can the conveyor belt provide if there is only a minor amount of friction in the wheels?
Minor force.
3. How much force does the engine provide?
Major force.
4. Compare the forces.
Major force forwards and minor force backwards = motion forwards = flight.
Posted on 12/6/07 at 3:35 pm to Colonel Hapablap
quote:
every time I think everyone understands, someone is an idiot.
Yep... the thread will never die as long as there is a good supply of stubborn idiots on tigerdroppings. But then, that's straight from the Department of Redundancy Department.
Posted on 12/6/07 at 3:35 pm to just me
we don't even need mythbusters. I just created the same experiment with two hands and a ballpoint pen.
It's the same principles.
It's the same principles.
Posted on 12/6/07 at 3:35 pm to LSUBoo
quote:
It will
Ok, I wasn't arguing the physics whether or not the plane would move on the treadmill. I was under the assumption that the whole discussion was concerning whether the plane would fly without moving on the treadmill, which is why I was so dumbfounded that so many people thought it would.
Posted on 12/6/07 at 3:37 pm to LSU Fan 90812
quote:
here's an exercise. get a pencil. place your hands together as if you were praying, with the pencil being between your pals. place your left hand to where it faces down towards the ground, and your right hand is facing upwards. Move your right hand one way and your left hand in the opposite direction..
Tell me what happens to where you right hand is, in relationship to the starting point.
okay, well that's one way to simplify it.
Turns out, no matter what I do with the left hand, the right hand still moves!
Posted on 12/6/07 at 3:40 pm to Dale Murphy
quote:
I was under the assumption that the whole discussion was concerning whether the plane would fly without moving on the treadmill, which is why I was so dumbfounded that so many people thought it would.
I don't know how this problem came about... probably someone somewhere had an idea that if they could make it work without the plane actually moving then it would be great for aicraft carriers, then they realized that it would work, but it would still be moving, so the treadmill would be useless, then it got stuck in a physics book somewhere to be dusted off every now and then.
Posted on 12/6/07 at 3:41 pm to LSUBoo
the point is that pen (wheels) negate the friction caused by the bottom hand (conveyor belt) enabling the right hand (plane) to move forward.
Now if you take the (pen) wheels out of the question, the friction increases. The right hand moves much slower to its spot, or might not move at all.
karmapol1ce = mythbuster.
Now if you take the (pen) wheels out of the question, the friction increases. The right hand moves much slower to its spot, or might not move at all.
karmapol1ce = mythbuster.
Posted on 12/6/07 at 3:42 pm to LSU Fan 90812
quote:
the point is that pen (wheels) negate the friction caused by the bottom hand (conveyor belt) enabling the right hand (plane) to move forward.
Oh, I understand perfectly. And if you leave your left hand still (runway) then the right hand still moves the same speed, but the pen rotates half as much.
Posted on 12/6/07 at 3:44 pm to LSUBoo
i'm picturing a lot of people dwelling below the karma line sitting at their desks with a pen in their hands and watching their hands move.
Posted on 12/6/07 at 3:45 pm to LSU Fan 90812
Posted on 12/6/07 at 3:46 pm to LSU Fan 90812
I have no idea what that pencil experiment even means, so no, I'm not sitting here doing it.
Posted on 12/6/07 at 3:49 pm to Dale Murphy
you arse, just do it. and tell me if your right hand moves from it starting point.
Page 23 of 29
Back to top
Follow TigerDroppings for LSU Football News