Quote (Firaga @ Mar 23 2017 01:36pm)
Show me how an airplane works without gravity. using math only, no bullshit youtube videos
2 second google search:
THE MOMENTUM EXPLANATION OF LIFT
According to this explanation, the slight downward deflection of the air leaving the trailing edge of a wing is what produces lift. Since for every action there is an equal and opposite reaction, the downward push on the air must result in an upward push on the wing. But this “downwash” results from air pressure differences on the wing—it is an effect of lift, not the cause of it. The wing cannot “feel” the airstream behind it being deflected downward; but it does feel the pressure of air molecules colliding against its surface.
THE CIRCULATION THEORY OF LIFT
This is the oldest and most complex theory of lift. It explains how the difference in air speed over and under the wing results from a net “circulation” of air. Above the wing, the circulatory flow adds to the overall speed of the air; below the wing, it subtracts. But the actual force on the wing results from the difference in air pressure caused by the difference in airflow speeds.
Quote (Santard @ Mar 23 2017 02:00pm)
Awww, look at you. You're so cute when you show off how much you don't understand about the science the rest of us learned before we could drink.
Million pounds, 2 million, it doesn't matter. Water vapor generally floats above comparable dry air. Just like 200 million pound aircraft carriers float on water. The overall volume of the carrier is more than a comparable volume of water, therefore the carrier floats. That isn't gravity defying, that is buoyancy.
...and there you are making up non-existent, unscientific terms.
...and here you are showing off how you failed to pay attention to Newton's first law. Gravity IS acting on the entire slinky, but the spring tension in the slinky is pulling the bottom up because the spring tension is at least equal to the force of gravity, and therefore the bottom doesn't fall until the top is no longer pulling it upwards.
So cute , you raging cause you dont even understand how a slinky works, this is funny how you make up reasons when you dont even understand the basics.
Quote (Kiseki @ Mar 23 2017 02:50pm)
inb4 random yt video to support your delusion
Didn't a few hours ago you said you didn't know how to find a blog, and now your all offended your astro-science is falling, pffft waiting for your "How 90s Music is the best" thread.
This post was edited by card_sultan on Mar 23 2017 08:26pm