Facewon wrote:I'm with monkey around the implied question. Other than that, pretty cool thread.
New question:
If you put a plane on a conveyer belt will it be able to run cyberpunk77?
RamSteelwood wrote:i still think it's a bit of trick question, because something being on a treadmill implies (to me anyway) that it's not moving forward. This is all just a bit of a fudge around planes being 'propelled' by moving air rather than the wheels on the ground turning, and is basically 'will a plane take off if it's wheels are spinning a bit faster than normal?'
Is this the same question/answer: a plane is on a big long (ie infinite) straight train that is basically a mobile runway, and the train is moving at the top speed of the plane. the plane is facing the opposite direction that the train is moving, and the plane is initially not moving itself (so it is moving with the train). Can it take off in the opposite direction to the train?
Bonus question, could it do an instant/vertical take off in the direction the train is heading?
poprock wrote:The plane’s engines pull it forwards through the air, regardless of what its wheels and the conveyor belt are doing.
The conveyor is a distraction. Ignore it. The plane moves forward, accelerates and takes off just as it normally would.
GurtTractor wrote:I think you might be missing something here Yoss, the plane doesn't need to 'go faster than standard take-off speed', it can apply the same amount of power/thrust as it would normally and it would take off.
nick_md wrote:Has no one thought to just build a giant conveyor and find out once and for all?
b0r1s wrote:But traction against the ground is needed to get that initial small amount of movement.
poprock wrote:Seaplanes work fine without wheels. Imagine a seaplane taking off upstream. There you go, same situation as your wheels and conveyor belt.
Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice?
After the problem appeared in Parade, approximately 10,000 readers, including nearly 1,000 with PhDs, wrote to the magazine, most of them claiming vos Savant was wrong. Even when given explanations, simulations, and formal mathematical proofs, many people still do not accept that [redacted] is the best strategy. Paul Erdős, one of the most prolific mathematicians in history, remained unconvinced until he was shown a computer simulation demonstrating vos Savant's predicted result.
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