Democratic Sentinel, Volume 22, Number 24, Rensselaer, Jasper County, 25 June 1898 — Flying Machines. [ARTICLE]

Flying Machines.

If a flying machine had power to vary Its Inclinations, when once launched into the mean velocity of the wind It could take advantage of the varying velocity and direction of the wind. Falling with the slower wind, it would accumulate the energy which It would have to expend In rising with the higher and thus become capable of indefinite sustainment or advance. It would require, however, an even more Intimate knowlquick perception of the currents of the air than a mariner possesses as to sea currents.