Quote:
Originally posted by XPLORx4:
Quote:
Originally posted by Mobycat:
[b]
Quote:
Originally posted by XPLORx4:
[qbDoes the glider take off?
That's flawed. You are now moving the glider in relation to the *calm* air - making it no longer calm to the glider.[/b]
That's right! The glider is now MOVING through *not calm* air. (Moving air is inherently *not* calm. The glider is still moving! But the conveyor belt is also moving backward! Why? Because the glider is being towed![/QB]
The plane is not being towed. So it doesn't move against the calm air. No lift.
_________________________
"Nature has constituted utility to man the standard and test of virtue. Men living in different countries, under different circumstances, different habits and regimens, may have different utilities; the same act, therefore, may be useful and consequently virtuous in one country which is injurious and vicious in another differently circumstanced" - Thomas Jefferson, moral relativist