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acting aerial navigation air-craft already alter amount angles apparatus applied arrangement attached axis balance balloon boat body bows buoyancy burden carbonic carried centre considerable considered construction contents cords course craft diameter direction doubt effect engine envelope equal experiments extreme fact fall feet figure fixed float force former gas-vessel give given gravity greater head heat horizontal hydrogen increased instance keep latter least length less lifting light liquid lower material means mechanical metal method mode motion move nature necessary object obtained once passing plane position possible pounds practice present pressure probably propelling proposed propulsion reason represented requisite resistance respect rest result rise round side speed strength sufficient suggested supposed surface suspended vertical vessel weight whole wind wings
Página ix - For I dipt into the future, far as human eye could see — Saw the Vision of the world, and all the wonder that would be'; Saw the heavens...
Página ix - With the standards of the peoples plunging through the thunderstorm ; Till the war-drum throbbed no longer, and the battle-flags were furled In the Parliament of man, the Federation of the world. There the common-sense of most shall hold a fretful realm in awe, And the kindly earth shall slumber, lapt in universal law.
Página vii - A window shalt thou make to the ark, and in a cubit shalt thou finish it above; and the door of the ark shalt thou set in the side thereof; with lower, second, and third stories shalt thou make it.
Página ix - In the Parliament of man, the Federation of the world. There the common sense of most shall hold a fretful realm in awe, And the kindly earth shall slumber, lapt in universal law.
Página vii - And God said unto Noah, the end of all flesh is come before me; for the earth is filled with violence through them; and behold I will destroy them with the earth. Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch.
Página 191 - There are four several ways whereby this flying in the air hath been, or may be attempted. Two of them by the strength of other things, and two of them by our own strength. 1 . By spirits, or angels.
Página 192 - ... spring might perhaps be serviceable for the motion of this engine, yet it were better to have it assisted by the labour of some intelligent mover, as the heavenly orbs are supposed to be turned. And therefore if it were made big enough to carry sundry persons together, then each of them in their...
Página ix - I triumph'd ere my passion sweeping thro' me left me dry, Left me with the palsied heart, and left me with the jaundiced eye; Eye, to which all order festers, all things here are out of joint : Science moves, but slowly slowly, creeping on from point to point : Slowly comes a hungry people, as a lion creeping nigher, Glares at one that nods and winks behind a slowly-dying fire. Yet I doubt not thro' the ages one increasing purpose runs, And the thoughts of men are widen'd with the process of the...
Página 11 - Certainly many birds of good wing (as kites, and the like,) would bear up a good weight as they fly; and spreading of feathers thin, and close and in great breadth, will likewise bear up a great weight ; being even laid, without tilting upon the sides.