Fil:Aeolipile (from Pneumatica).jpg

Aeolipile_(from_Pneumatica).jpg(204 × 234 piksler, filstørrelse: 10 KB, MIME-type: image/jpeg)


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English: Illustration accompanying Hero's entry in Pneumatica, published in the first century AD.
"No. 50. The Steam-Engine.
PLACE a cauldron over a fire: a ball shall revolve on a pivot. A fire is lighted under a cauldron, A B, (fig. 50), containing water, and covered at the mouth by the lid C D; with this the bent tube E F G communicates, the extremity of the tube being fitted into a hollow ball, H K. Opposite to the extremity G place a pivot, L M, resting on the lid C D; and let the ball contain two bent pipes, communicating with it at the opposite extremities of a diameter, and bent in opposite directions, the bends being at right angles and across the lines F G, L M. As the cauldron gets hot it will be found that the steam, entering the ball through E F G, passes out through the bent tubes towards the lid, and causes the ball to revolve, as in the case of the dancing figures."
Dato 1. århundre e.Kr.
date QS:P,+050-00-00T00:00:00Z/7
Kilde http://www.history.rochester.edu/steam/hero/section50.html
Opphavsperson Hero of Alexandria
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nåværende4. jul. 2009 kl. 03:30Miniatyrbilde av versjonen fra 4. jul. 2009 kl. 03:30204 × 234 (10 KB)PeterJewell{{Information |Description={{en|1=Illustration accompanying Hero's entry in Pneumatica, published in the first century AD.}} |Source=http://www.history.rochester.edu/steam/hero/section50.html |Author=Hero of Alexandria |Date=1st Century AD |Permission={{P

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