 | George Adams - 1794 - 606 pàgines
...had written upon the fubjedr., and many had been of opinion, that, by means of artificial wings fixed to the arms or legs, a man might fly as well as a bird : but thefe opinions were thorougly refuted by Borelli, in histreatife "De motu Animalium," where,... | |
 | Hewson Clarke, John Dougall - 1817 - 928 pàgines
...had written upon the subject; and many had been of opinion, that, by means of artificial wings, fixed to the arms or legs, a man might fly as well as a. bird : but these opinions were thoroughly refuted by Borelli, in his treatise DC Motu A/iimalium, where,... | |
 | Hewson Clarke, John Dougall - 1817 - 902 pàgines
...written upon the subject; and many had been of opinion, that, by means of artificial wings, fixed to die arms or legs, a man might fly as well as a bird : but these opinions were thoroughly refuted by Borelli, in his treatise De Mo/u Ammalmm, where, from... | |
 | 1823 - 876 pàgines
...chair on which a person might sit. Many had been of opinion, that by means of artificial wings, fixed to the arms or legs, a man might fly as well as a bird : but these opinions were thoroughly refuted by Borelliin his treatise De Motu AniImpossibitt tnalium,... | |
 | Hewson Clarke, John Dougall - 1825 - 892 pàgines
...had written upon the subject; and many had been of opinion, that, by means of artificial wings, fixed to. the arms or legs, a man might fly as well as a bird : but these opinions were thoroughly refuted by Borelli, in his treatise De Molu Animalium, where,... | |
 | Aeronautical Society of Great Britain - 1877 - 556 pàgines
...there not being -strength sufficient in a man's arms to enable him to fly with detached wings fastened to him, leaving the whole weight of his body unsupported....ages it will become as common to hear a man call for wings when going a journey as it is now to call for his boots and spurs. In the year 1709, as we gather... | |
 | James Means - 1894 - 224 pàgines
...purpose. being strength sufficient in a man's arms to enable him to fly with detached wings fastened to him, leaving the whole weight of his body unsupported....ages it will become as common to hear a man call for wings when going a journey as it is now to call for his boots and spurs. In the year 1709, as we gather... | |
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... fastened to him, leaving the whole weight of his body unsupported. Friar Bacon, who lived nearly five centuries ago, wrote upon the subject, and he affirms that the art of flying is possible ; and many others have been of opinion that, by means of... 