01 JUN 2012 by ideonexus

 Dissecting Crystals

A casual glance at crystals may lead to the idea that they were pure sports of nature, but this is simply an elegant way of declaring one's ignorance. With a thoughtful examination of them, we discover laws of arrangement. With the help of these, calculation portrays and links up the observed results. How variable and at the same time how precise and regular are these laws! How simple they are ordinarily, without losing anything of their significance! The theory which has served to develop th...
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Hauy describes learning the secrets of their structure.

18 MAY 2011 by ideonexus

 1939 New York World's Fair and a Future Through Science

The 1939 New York World's Fair - that so transfixed me as a small visitor from darkest Brooklyn - was about 'The World of Tomorrow'. Merely by adopting such a motif, it promised that there would be a world of tomorrow, and the most casual glance affirmed that it would be better than the world of 1939. Although the nuance wholly passed me by, many people longed for such a reassurance on the eve of the most brutal and calamitous war in human history. I knew at least that I would be growing up i...
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Carl Sagan describes seeing the World's Fair as a youth.