Aerial NavigationMacmillan and Company, 1877 - 513 pages |
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Page 50
... bows was practically nothing . Fig . 10 . But in this case the gas - vessel would be equally thrown out of its position of least re- sistance the system assuming the form shown in fig . 10 - as soon as motion commenced . In this fig ...
... bows was practically nothing . Fig . 10 . But in this case the gas - vessel would be equally thrown out of its position of least re- sistance the system assuming the form shown in fig . 10 - as soon as motion commenced . In this fig ...
Page 57
... bows of the gas - vessel to resist the pressure of the air . I conceive this to be quite true . It has , however , been disputed by a gentleman who some years ago paid much atten- tion to the subject of aeronautics . The following is Mr ...
... bows of the gas - vessel to resist the pressure of the air . I conceive this to be quite true . It has , however , been disputed by a gentleman who some years ago paid much atten- tion to the subject of aeronautics . The following is Mr ...
Page 59
... bows than at the stern of its receptacle . When the motion is accele- rated or retarded , the case is different . In either case the solid envelope receives the check first , while the inertia of the gas within , which is free to move ...
... bows than at the stern of its receptacle . When the motion is accele- rated or retarded , the case is different . In either case the solid envelope receives the check first , while the inertia of the gas within , which is free to move ...
Page 61
... bows of the vessel , or by strengthening the texture of the envelope itself at that part . Instances in which the former appliance has been suggested may be found in a ' Description of a Proposed Flying - Machine , ' by Dædalus Britan ...
... bows of the vessel , or by strengthening the texture of the envelope itself at that part . Instances in which the former appliance has been suggested may be found in a ' Description of a Proposed Flying - Machine , ' by Dædalus Britan ...
Page 64
... bows of the gas - vessel , for these reasons : -Firstly , the greater the compression to which gases are subjected , the greater will be their effort to escape ; and this will be especially preju- dicial in the case of the subtle ...
... bows of the gas - vessel , for these reasons : -Firstly , the greater the compression to which gases are subjected , the greater will be their effort to escape ; and this will be especially preju- dicial in the case of the subtle ...
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Common terms and phrases
aerial navigation aeronautics aerostat air-craft amount angles apparatus applied arrangement ascertained attached axis balance ballast balloon boat body bows burden carbonic acid Cayley centre of buoyancy centre of gravity coal gas condensation contrivance cords course craft cubic cylinder Delcourt diameter direction effect endeavour envelope equal equilibrium Études exerted experiments feet figure float flying forces acting former gas-vessel grammes greater ground gutta-percha heat horizontal hydrogen inches latter length lifting power light liquid material means Mech mechanical metal mode Monge motion move necessary obtained oxide plane position pounds pressure propelling force proposed propulsion purpose requisite resistance result rise rowlock semi-minor axis side Sir George Cayley specific gravity speed spheroid steam stiffness sufficient supposed surface suspended tendency texture tion tube upward varnish velocity vertical vessel vulcanised weight whole wind wings zinc
Popular passages
Page v - Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch. 15 And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
Page vii - 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 fill with commerce, argosies of magic sails, Pilots of the purple twilight, dropping down with costly bales; Heard the heavens f1ll with shouting, and there rained a ghastly dew From the nations...
Page 95 - Then I looked on all the works that my hands had wrought, and on the labour that I had laboured to do : and behold, all was vanity and vexation of spirit, and there was no profit under the sun.
Page 286 - And God said, Let the waters under the heaven be gathered together into one place, and let the dry land appear: and it was so.
Page vii - 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.
Page v - 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.
Page 286 - And God created great whales, and every living creature that moveth, which the waters brought forth abundantly, after their kind, and every winged fowl after his kind : and God saw that it was good.
Page vi - Men, my brothers, men the workers, ever reaping something new : That which they have done but earnest of the things that * they shall do : *.n )• "jf.
Page 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.
Page 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...