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Wordle 296 5/6
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Wordle 296 5/6
π¨β¬β¬β¬β¬
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Lucky guess on the fourth try!
Wordle 296 4/6
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"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Wordle 296 4/6
β¬π¨β¬β¬β¬
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Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
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Wordle 296 5/6*
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Happiness will never come to those who fail to appreciate what they already have. -Anon
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3/6
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GCS/GE d--(d) s-/+ a C+++ U+++ P-- L+@ E-- W+++ N+ o+ K- w+++ O? M-- V? PS+ PE Y+ PGP t+ 5? X R+++ tv-- b+(+++) DI+++ D++ G e++ h--- r+++ y+++* Weapons extension: ma- k++ F+2 X
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Power of elimination.
Wordle 296 5/6*
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"It is easy to decipher extraterrestrial signals after deciphering Javascript and VB6 themselves.", ISanti[ ^]
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Wordle 296 5/6
β¬β¬β¬β¬β¬
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I kept wanting it to stop so I could find out what was being done. And waiting for one of the worker to turn and raise a middle finger.
Never underestimate the power of human stupidity -
RAH
I'm old. I know stuff - JSOP
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If an airplane is positioned on a conveyor belt as wide as a runway, and this conveyor belt is designed to exactly match the speed of the wheels, but moving in the opposite direction, ...
Can the airplane take off?
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Message Closed
modified 10-Apr-22 20:24pm.
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Not a joke. A question asked by my friend, for which I am not aware of the answer.
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Degree in physics, as if it mattered: No. The lift depends on airflow over the airplane wings. There will be none.
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Certainly true - as long as you don't fire up the engines. But without the engines running, the plane won't lift even on a normal runway.
The engines will push the plane up to speed, creating that airflow. The push is unaffected by those free-running wheels spinning like crazy - the plane accelerates just as much, wheels spinning or not.
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The engines don't directly cause the airflow. The engines push the airplane, whose movement through the air causes the airflow over the wings.
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So there will be an airflow, and the plane will lift into the air.
The airflow is a consequence of the engines pushing the plane into speed, exactly as at a "standard" take off. The only difference is that the free running wheels will be spinning twice as fast when the plane leaves the ground, but the speed of the plane - relative to the surrounding air and the solid ground - will be exactly as for a normal take off. The air flow in the same.
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Not quite accurate. The airflow over the wings is only part of the lift needed to fly. Modern aircraft are too heavy to use the Bernoulli Principle to fly. Instead they use the redirected air flow from the belly of the fuselage. Watch an aircraft in flight - the nose is always higher than the tail and the plane is staying aloft from Newton's 3rd Law of motion. The force keeping the plane in the air is the air being deflected down by the slope of the fuselage.
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Yes it can, the wheels spin freely and have nothing to do with propulsion, even in normal takeoffs. The Mythbusters even did a show about it.
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The answer is not without wind.
An airplane is lifted off the ground, not because of the speed of the plane, per se.
But because of the speed of the air moving above and below the wing.
The shape of the wing leverages the Bernoulli affect. (High Pressure below the wing, lower pressure above),
giving the plane "lift".
In fact, during a strong wind storm. Planes that are stored OUTSIDE, and TIED DOWN. WILL Lift into the air, and pull against the ropes. Being in Florida, I have witnessed this first hand. It's wild. (And it only works if the plane is facing the wind! The other planes get pushed "down/away" as their wings are "reversed", or they get turned.)
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Obviously yes I would say
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Not if its speed over the ground is zero.
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Iβd argue that itβs the airspeed that matters. If hurricane force winds start blowing during the experiment, the airplane might take off. However the original question didnβt mention anything like that and, under normal conditions, airspeed and ground speed are roughly equal.
Mircea
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It is airspeed that matters, but how fast the wheels are spinning is irrelevant, they aren't what propels the airplane forward.
If you think 'goto' is evil, try writing an Assembly program without JMP.
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