All About Engines
Forfatter: Edward Cressy
År: 1918
Forlag: Cassell and Company, LTD
Sted: London, New York, Toronto and Melbourne
Sider: 352
UDK: 621 1
With a coloured Frontispiece, and 182 halftone Illustrations and Diagrams.
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CHAPTER II
The Pioneers before Watt
FOR a hundred and fifty years the steam engine
has been the most powerful agent in altering the
habits of mankind and in moulding the customs of the
civilised world. A century and a half ago there were
hardly any factories, no railways or telegraphs, and
only slow-sailing ships which depended upon wind
and weather for the power which speeded them upon
their way. Few metals were known, and even iron
and steel were produced in quantities less than a
thousandth of those turned out from the world’s
furnaces to-day. Kings, and princes, and parlia-
ments we should still have had, but without the
steam engine none of those other great things would
have come about. Even the British Empire could
not have developed as we know it, and the whole
world would, relatively speaking, have stood still.
And since great effects often come from little causes
these causes are not unimportant; so that now we
know how a steam engine works we will go back to
the beginning of things and see how the early pioneers
faced their difficulties and came near to achieving
their ends.
The real story of the steam engine begins with
the invention by J ames Watt in 1765 ; but, like most
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