Quote:
Originally posted by XPLORx4:
Moby- how do you think a glider can become airborne?
It has to have wind over the wings.

A stationary plane on a conveyor belt in calm air does NOT have wind going over the wings.
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"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