The Romance of Modern Chemistry
Forfatter: James C. Phillip
År: 1912
Forlag: Seeley, Service & Co. Limited
Sted: London
Sider: 347
UDK: 540 Phi
A Description in non-technical Language of the diverse and wonderful ways in which chemical forces are at work and of their manifold application in modern life.
With 29 illustrations & 15 diagrams.
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FROM SOLUTIONS TO CRYSTALS
Another way of revealing the crystalline condition of
an alloy is to cut a section, polish one of the surfaces, and
treat it with an acid. This treatment brings out the
details of the crystalline structure, and with the help of
microscope and camera a photomicrograph is obtained,
the surface of the alloy being illuminated by either oblique
or reflected light This method is not restricted in its
scope like the previous one, and it is largely applied at
the present time, notably in the investigation of the
character of iron and steel which have been exposed to
different conditions (compare Fig. 15).
Working on these lines, the modern chemist can do
really marvellous things in the way of deciphering the
life-history of an alloy. The tale is on the face of it, if
he has but the key to the language, and the necessary
patience. As aids he requires chiefly two instruments
which in countless directions are invaluable to the scientific
worker. It is indeed difficult to realise how much poorer
natural science would be to-day had we no microscope
and no camera.
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