Is there not a theory about how we don't actually know how planes and helicopters fly????

maybe I am just trashed, but I am pretty sure I recall reading an article about it recently.

Maybe it's just the helicopters.

Someone here will know
 
take a piece of paper in both hands between thumb and index fingers and let the majority of the paper hang over away from your face. blow air out of your mouth over the paper and it lifts up. this is flight
 
Yes, I believe you're talking about the plane on a treadmill problem..?

Lift occurs because of the Bernoulli effect, but I think this problem creates something to refute that? I forget exactly, you'll have to look it up for more info. I'm still with Bernoulli on this one though.
 
and btw just because he hasn't released the trailer right on the expected time doesn't mean he isnt trying anymore, give it time dude
 
Classical physics tells us that when something emits electromagnetic radiation, it will admit a very small amount at long wavelengths such as radio, a little more at shorter wavelengths such as visible light and ultraviolet light, and more at X Ray, even more at Gamma ray, and even more at wavelengths shorter than 10^-12. Because of this the smallest wavelength that could be emitted would be 1/infinity, effectively incinerating the universe.
Hence, quantam physics.
PS: See the ultraviolet catastrophe.
 
1261448533fuuuuu

 
The most common belief is that planes fly due to Bernoulli's principle, that increased air velocity causes a decrease in air pressure. The air going over the top of a wing moves faster due to the airfoil shape, this leads to a drop in air pressure, the air pressure under the wing remains constant and is greater than the pressure on top. This is what causes lift. Some people believe there's another way involving wing vortices and a circular flow of air....I think. That's all I know.

spark notes: The common belief now is Burnoulli's principle. Some people believe there is another way that involves a circular flow of air....I think.
 
the game hasnt even been started, they have some lame concept art and a shitty 3d render of a girl straight from ssx. But they have collected some funds!
 
lol. theyre making this for PC only on the lowest possible budget with a bunch of amateur game developers. he got everyone on NS's hopes up and its just going to end up with another Jibberish or something... do you honestly expect a game anywhere near as good as the SSX series, let alone better?
 
can you stop being a fucking pessimist you little prick? jib-life is the only group making an effort to produce a good quality ski game right now, just because they are on hold for a little bit doesnt mean they gave up, believe in it, support it, dont criticize it until you learn more info on it
 
It's true that we're not really sure about exactly how lift is produced. It's a solid fact that it comes from high pressure regions on the bottom and low pressure on the top surfaces, but what isn't generally agreed upon is why these pressure differences arise.

Even though we don't know the details of how it works, that's somewhat irrelevant since we still know how to create the lift. 'How' is all you need to know as an engineer to build something - the 'why' is for scientists.
 
i dont care how long it takes for them to make the game... im just saying its going to suck...

id rather be pessimistic and be pleasantly surprised than think this is going to be the best game ever and be disappointed when it turns out it sucks balls.
 
epic thread potential, but honestly u all got the fuck off topic, helicopters shouldn't be able to fly but they do....

GO
 
Really they should. It's exactly the same thing as an airplane- only the wings are going around in a circle, creating the airspeed.

Airplanes work because the propeller pulls the plane through the air, and the speed of the air going past the wings makes it fly. The wings are shaped with the bottom flat, and the top curved, so there is more distance for the air to travel above the wing than below.

Because of this, the air above the wing has to travel faster, and cover a greater distance- and because the same amount of air is traveling over a greater distance, there is less pressure pushing down on the wing than up. Thus, you have lift. Enough of this force will lift an entire plane.

With helicopters, it is much the same thing. Instead of the wings being fixed, and the whole thing going forward, the wings create their own speed by rotating around, a lot. Each rotor is actually a wing, and the same principle of lift applies. They raise the helicopter into the air.

Why, then, doesn't the helicopter spin around, as Newton's Third law of Motion (that every action has an equal and opposite reaction) would suggest? That is where the smaller, vertical propeller on the helicopter's tail comes in. It generates sideways lift to oppose the Newtonian force that would spin the helicopter, and this tail rotor spins at a speed very carefully proportioned to the speed of the main rotor, so it stays balanced.

To turn when the heli is moving very slowly, this rear rotor either slows down or speeds up a little bit.

To attain forwards or rearwards motion, the wings of the main rotor actually change their angle, pointing up a little and down a little in the front and the back of the helicopter. This, again, is a complicated procedure that essentially produces more lift in the rear of the heli than in the front (in the case of moving forwards) so the lift is not strictly in an upward direction, but so it is diagonal, and pulls the heli forward. This works in all directions.

To change direction while moving at higher speeds, one can not only modulate the speed of the rear rotor, because, as NS would say, "you're momentum is wrong." What this means is, if you are moving straight north, and rotate to point straight east, you would still be moving north, due to the principle that an object in motion, stays in motion. So you must balance a change in the main rotor blades' individual angles with the modulation of the rear rotor's speed to achieve a change in the direction of the helicopter as a whole.

That, my deadline-challenged friend, is how a helicopter works. Are there any more questions you have for a high school junior to answer from the knowledge he has attained over the years? Surely if I took the time to learn how write in Java or CSS or whatever code you're using, I, or any other NSer, could produce results faster than you.

Thank you, and good night.
 
or is it possible that kids these days fail to see the value in learning because they can just as easily get any answer they need from google or wiki?
 
Correct me if I'm wrong, but that reminds me.. Does part of the argument lie in that there's no reason the air above the wing has to travel at a faster speed?
 
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