Equalizing the Two Motions
EQUALIZING THE TWO MOTIONS.
But now let us assume that the line of flight is like that shown at E, in Fig. 2, where it travels along parallel with the surface of the earth. In this case the force of the ball equals the centripetal pull,–or, to put it differently, the centrifugal equals the gravitational pull.
The constant tendency of the ball to fly off at a tangent, and the equally powerful pull of gravity acting against each other, produce a motion which is like that of the earth, revolving around the sun once every three hundred and sixty-five days.
It is a curious thing that neither Langley, nor any of the scientists, in treating of the matter of flight, have taken into consideration this quality of momentum, in their calculations of the elements of flight.
All have treated the subject as though the whole problem rested on the angle at which the planes were placed. At 45 degrees the lift and drift are assumed to be equal.
Moon Shot!!! #2 by jpro747
Achieving Your Greatest Potential | 
Online English Magazine | September 14, 2008
