The Dominion of the Air; the Story of Aerial Navigation
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In our eReader you can find the full English version of the book. Read The Dominion of the Air; the Story of Aerial Navigation Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Dominion of the Air; the Story of Aerial Navigation
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, whichwould include weight of man and apparatus, and reduce the ultimate fallto one not exceeding 8 feet. The parachute was attached to the ring of asmall balloon of 12, 000 cubic feet, and the Professor ascended, sittingon a mere sling of rope, which did duty for a car.
Mr. Thomas Moy, who investigated the mechanics of the contrivance, estimated that after a drop of 16 feet, the upward pressure, amountingto over 2 lb. Per square foot, would act on a surface of not less than254 square feet. Th...ere was, at the time, much foolish comment on thegreat distance which the parachute fell before it opened, a completedelusion due to the fact that observers failed to see that at the momentof separation the balloon itself sprang upward.
CHAPTER XXII. THE STORY OF THE SPENCERS.
It has been in the hands of the Spencers that the parachute, as alsomany other practical details of aeronautics, has been perfected, andsome due sketch of the career of this family of eminent aeronauts mustbe no longer delayed.
What to read after The Dominion of the Air; the Story of Aerial Navigation?
You can find similar books in the "Read Also" column, or choose other free books by Bacon John Mackenzie to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
, whichwould include weight of man and apparatus, and reduce the ultimate fallto one not exceeding 8 feet. The parachute was attached to the ring of asmall balloon of 12, 000 cubic feet, and the Professor ascended, sittingon a mere sling of rope, which did duty for a car.
Mr. Thomas Moy, who investigated the mechanics of the contrivance, estimated that after a drop of 16 feet, the upward pressure, amountingto over 2 lb. Per square foot, would act on a surface of not less than254 square feet. Th...ere was, at the time, much foolish comment on thegreat distance which the parachute fell before it opened, a completedelusion due to the fact that observers failed to see that at the momentof separation the balloon itself sprang upward.
CHAPTER XXII. THE STORY OF THE SPENCERS.
It has been in the hands of the Spencers that the parachute, as alsomany other practical details of aeronautics, has been perfected, andsome due sketch of the career of this family of eminent aeronauts mustbe no longer delayed.
What to read after The Dominion of the Air; the Story of Aerial Navigation?
You can find similar books in the "Read Also" column, or choose other free books by Bacon John Mackenzie to read onlineMoreLess
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