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One is a tunnel , under a hill 900 feet high , carried entirely through the base of the hill , with a mouth at either end . The length of the cutting is almost a mile — the height and width are each eight feet .
He built a 300 - foot pleasure barge : a flat - bottomed floating palace 45 feet wide . Next he built the fortier , 420 feet long and 57 feet wide . The ship had a double bow , a double stern , and seven rams .
As each rower needs at least a yard of oar for himself and his elbows , the length of the loom grasped by the rowers would be at least 120 feet , which means an oar with a total length of over 500 feet !
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LibraryThing ReviewCrítica de los usuarios - PDCRead - LibraryThing
This was originally written in 1962, and is therefore is a little dated. Sprague de Camp has written a book all about the different civilisations and the technologies that that invented or acquired ... Leer comentario completo
LibraryThing ReviewCrítica de los usuarios - Schmerguls - LibraryThing
5609. The Ancient Engineers, by L. Sprague De Camp (read 21 Jan 2019) This book was first published in 1963 and hence its bibliography includes nothing after that date. It undertakes to tell of the ... Leer comentario completo
One The Coming of the Engineers
Three The Mesopotamian Engineers
Four The Greek Engineers
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