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the story of mankind-及80嫗

弌傍�� the story of mankind 忖方�� 耽匈4000忖

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of the privileges of all civilised governments。 When the ``edited''

telegram was printed�察�the good people in Berlin felt that

their old and venerable king with his nice white whiskers had

been insulted by an arrogant little Frenchman and the equally

good people of Paris flew into a rage because their perfectly

courteous minister had been shown the door by a Royal Prussian

flunkey。



And so they both went to war and in less than two months��

Napoleon and the greater part of his army were prisoners of

the Germans。 The Second Empire had come to an end and the

Third Republic was making ready to defend Paris against the

German invaders。 Paris held out for five long months。 Ten

days before the surrender of the city�察�in the nearby palace of

Versailles�察�built by that same King Louis XIV who had been

such a dangerous enemy to the Germans�察�the King of Prussia

was publicly proclaimed German Emperor and a loud booming

of guns told the hungry Parisians that a new German Empire

had taken the place of the old harmless Confederation of Teutonic

states and stateless。



In this rough way�察�the German question was finally settled。

By the end of the year 1871�察�fifty´six years after the memorable

gathering at Vienna�察�the work of the Congress had been entirely

undone。 Metternich and Alexander and Talleyrand had tried

to give the people of Europe a lasting peace。 The methods

they had employed had caused endless wars and revolutions and

the feeling of a common brotherhood of the eighteenth century

was followed by an era of exaggerated nationalism which has

not yet come to an end。







THE AGE OF THE ENGINE



BUT WHILE THE PEOPLE OF EUROPE WERE

FIGHTING FOR THEIR NATIONAL

INDEPENDENCE�察�THE WORLD IN WHICH THEY

LIVED HAD BEEN ENTIRELY CHANGED

BY A SERIES OF INVENTIONS�察�WHICH HAD

MADE THE CLUMSY OLD STEAM ENGINE

OF THE 18TH CENTURY THE MOST FAITHFUL

AND EFFICIENT SLAVE OF MAN





THE greatest benefactor of the human race died more than

half a million years ago。 He was a hairy creature with a low

brow and sunken eyes�察�a heavy jaw and strong tiger´like teeth。

He would not have looked well in a gathering of modern scientists��

but they would have honoured him as their master。 For

he had used a stone to break a nut and a stick to lift up a heavy

boulder。 He was the inventor of the hammer and the lever�察�our

first tools�察�and he did more than any human being who came

after him to give man his enormous advantage over the other

animals with whom he shares this planet。



Ever since�察�man has tried to make his life easier by the use

of a greater number of tools。 The first wheel ��a round disc

made out of an old tree�� created as much stir in the communities

of 100��000 B。C。 as the flying machine did only a few years

ago。



In Washington�察�the story is told of a director of the Patent

Office who in the early thirties of the last century suggested

that the Patent Office be abolished�察�because ``everything that

possibly could be invented had been invented。'' A similar

feeling must have spread through the prehistoric world when

the first sail was hoisted on a raft and the people were able

to move from place to place without rowing or punting or

pulling from the shore。



Indeed one of the most interesting chapters of history is

the effort of man to let some one else or something else do his

work for him�察�while he enjoyed his leisure�察�sitting in the sun

or painting pictures on rocks�察�or training young wolves and

little tigers to behave like peaceful domestic animals。



Of course in the very olden days�察�it was always possible

to enslave a weaker neighbour and force him to do the unpleasant

tasks of life。 One of the reasons why the Greeks and

Romans�察�who were quite as intelligent as we are�察�failed to

devise more interesting machinery�察�was to be found in the wide´

spread existence of slavery。 Why should a great mathematician

waste his time upon wires and pulleys and cogs and fill

the air with noise and smoke when he could go to the marketplace

and buy all the slaves he needed at a very small expense��



And during the middle´ages�察�although slavery had been

abolished and only a mild form of serfdom survived�察�the guilds

discouraged the idea of using machinery because they thought

this would throw a large number of their brethren out of

work。 Besides�察�the Middle´Ages were not at all interested

in producing large quantities of goods。 Their tailors and butchers

and carpenters worked for the immediate needs of the small

community in which they lived and had no desire to compete

with their neighbours�察�or to produce more than was strictly

necessary。



During the Renaissance�察�when the prejudices of the Church

against scientific investigations could no longer be enforced as

rigidly as before�察�a large number of men began to devote their

lives to mathematics and astronomy and physics and chemistry。

Two years before the beginning of the Thirty Years War��

John Napier�察�a Scotchman�察�had published his little book which

described the new invention of logarithms。 During the war it´

self�察�Gottfried Leibnitz of Leipzig had perfected the system of

infinitesimal calculus。 Eight years before the peace of Westphalia��

Newton�察�the great English natural philosopher�察�was

born�察�and in that same year Galileo�察�the Italian astronomer��

died。 Meanwhile the Thirty Years War had destroyed the prosperity

of central Europe and there was a sudden but very general

interest in ``alchemy��'' the strange pseudo´science of the

middle´ages by which people hoped to turn base metals into

gold。 This proved to be impossible but the alchemists in their

laboratories stumbled upon many new ideas and greatly helped

the work of the chemists who were their successors。



The work of all these men provided the world with a solid

scientific foundation upon which it was possible to build even

the most complicated of engines�察�and a number of practical

men made good use of it。 The Middle´Ages had used wood for

the few bits of necessary machinery。 But wood wore out

easily。 Iron was a much better material but iron was scarce

except in England。 In England therefore most of the smelting

was done。 To smelt iron�察�huge fires were needed。 In the

beginning�察�these fires had been made of wood�察�but gradually

the forests had been used up。 Then ``stone coal'' ��the petrified

trees of prehistoric times�� was used。 But coal as you

know has to be dug out of the ground and it has to be transported

to the smelting ovens and the mines have to be kept

dry from the ever invading waters。



These were two problems which had to be solved at once。

For the time being�察�horses could still be used to haul the coal´

wagons�察�but the pumping question demanded the application

of special machinery。 Several inventors were busy trying to

solve the difficulty。 They all knew that steam would have to

be used in their new engine。 The idea of the steam engine was

very old。 Hero of Alexandria�察�who lived in the first century

before Christ�察�has described to us several bits of machinery

which were driven by steam。 The people of the Renaissance

had played with the notion of steam´driven war chariots。 The

Marquis of Worcester�察�a contemporary of Newton�察�in his book

of inventions�察�tells of a steam engine。 A little later�察�in the year

1698�察�Thomas Savery of London applied for a patent for a

pumping engine。 At the same time�察�a Hollander�察�Christian

Huygens�察�was trying to perfect an engine in which gun´powder

was used to cause regular explosions in much the same way as

we use gasoline in our motors。



All over Europe�察�people were busy with the idea。 Denis

Papin�察�a Frenchman�察�friend and assistant of Huygens�察�was

making experiments with steam engines in several countries。

He invented a little wagon that was driven by steam�察�and a

paddle´wheel boat。 But when he tried to take a trip in his

vessel�察�it was confiscated by the authorities on a complaint of

the boatmen's u

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