riddle

But movement is the issue! :D Here an example. You place a few murmurs on the conveyor belt. You hold the hand on the other hand of the murmurs, so they begin to roll. That is the exact force you need that the murmurs won't be transported backwards by the conveyor belt.
Same with the aircraft. It does only need a way smaller amount of power to counter the effect of the conveyor belt, as it's wheels act the same as murmurs, unlike a bicycle or car wheel, where the transmition goes to the wheels "directly".
Thus as long as the plane is able to counter that effect, which it is, it can lift of. The riddle is solved :)

sorry about that before but i was tired and knew the mythbusters had literally done it i didn't know you wanted the physics as part of the awnser once again sorry.

but it was neat seeing the plane take off

It's not (I bet you're annoyed now.). You're explaining it in the wrong way, get away from the whole 'effect countering' thing - our fictive conveyor belt cannot be outplayed, it goes always at the same speed, that's the whole point of the riddle.

I have a hint for you: It's way simpler than your explanation. In fact, it doesn't even get that far. But keep the murmur.



No hard feelings there.

i think the awnser to the riddle is the propeller the propeller supplies the wind over the wings for uplift it doesn't matter that the plane isn't moving on the conveyer

O_o My riddle got killed by that good one XD

Any more guesses? Or should I post the answer?

There are just too many things you could be.

Although my guess goes into the direction of a progress - or the next in line, something like that.



The turbines are usually located underneath the wings, with the air blast it creates going behind the body, else it would be in conflict with the headwind which is necessary for the flight. (Which is by the way the reason for mid-air fuel tanking being such a dangerous manoeuvre.)

Ok, to narrow it down (I never thought people would have so many answers XD)

It could at one point be C or X but that might not be in order... O_o

Nope, it isn't the propeller. The propeller is merely there for accelerating the aircraft whereas the airstreams above and under the wings keep the plane in the air.
As for the theory, you need an airstream to lift off the aircraft. There are 2 possibilities. A) You gain the airstream by accelerating to a minimum of 80 knots (for an average Cessna or up to 100 - 120 knots for most stunt plane's.)
B) You start off at the given 80 - 120 knots and thus similar to a sail plane make a "jump start" (when a sailplane is being towed up and than released off the hook, thus having a proper speed for "flying" allready. though for a sailplane the speed needed is way lower due to it having less weight to deal with and larger wings, thus more updrift).
Incase both, the conveyor belt and the aircraft would basicly let's say be "spawned" at 80 knots, the aircraft would take off immediatly. Incase of acceleration the aircraft wins due to the natural updrift. So in the end it comes down to this:


So as the aircraft is moving due to the natural updrift when accelerating and having a greater acceleration as the conveyor belt and reducing the own contact thus reducing the power the conveyor belt has on it, it can lift off.

Said greater acceleration as the conveyor belt, I say it again, can not be reached under the terms of the riddle.

Remember: The conveyor belt goes into infinity.

'Spawning' at a certain speed, too, is not an option, since under your current solution it can't even get that far.

Think of another way to overcome it.

The speed goes into infinity. I am talking about the acceleration reduction due to the updrift the airplane receives. Basicly at first it would be pretty slow, but the more updrift it get's the less the conveyor belt will work. So the conveyor belt loses 1 way or another :P It is only logic that the less mass something has, the less it can be afflicted. It is so to speak similar to an exponential (if not entirely correct) acceleration due to the updrift the airplane receives.

And from where are you receiving said updrift? The airplane isn't moving at all right now.

(I can't help but smirk up to my ears as I write this.)

wait i know its MAGIC nacho u crafty devil u.jk

[quote="nacho"]And from where are you receiving said updrift? The airplane isn't moving at all right now.
Propeller + acceleration of air + drift under and above the wings = updrift = airplane get's chances. There are tons of way you can gain an updrift. Even a slight bit of wind works as an updrift. And as you said no special weather / wind I take it that there is wind, just not any storm or the like :D

Not to forget hot air works as an updrift also :)

Your explanation is still not satisfying.

Since we (Still.) can not move our airplane forward at all, there's absolutely no acceleration of air involved besides the one gushing out of the turbines, too bad that one goes behind the airplane and doesn't give us the necessary headwind at all. And the propeller does (Yet.) no other thing than making the wheels and the conveyor belt love each other.

Hot wind sure isn't enough to lift the wheels from the conveyor belt.

Change your direction.

Hint:



You were so ridiculously close to the answer and didn't even notice it.

it rolls anyways as due to the conveyor belt it has an object with the wheels that is not in a solid state (i mean movement wise)? That would be crappy though and I doubt it.

You were so ridiculously close to the answer and didn't even notice it.

EDIT: Not to mention that there is a momentum when you start the conveyor belt in which the airplane would be able to accelerate due to the sudden acceleration of the conveyor belt (those things start pretty sudden and not very fluently so the 2 opposing forces would allow for the airplane to move anyways, despite any of the other things :))

You messed up your quotes a little.



Aren't you one stubborn fellow. Well, it's a conveyor belt from the future, alright? It completely mastered it's smooth starting sequence. Not that this would make any difference at all, are you trying to distract me?



Please give this statement a little more explanation - I don't really understand what you are trying to say.

I don't know anymore either... I'll answer you tomorrow when I stocked up on more coffee. It just ran out and I don't think any store has open around anymore so I could get some new one :)

A WOMAN HAS 7 CHILDREN HALF OF THEM ARE BOYS HOW IS THIS POSSIBLE?

Is it Women or Woman?

my bad fix'd