A Voyage in Space a Course of Six Lectures Adapted to a Juvenile Auditory Del
A Voyage in Space a Course of Six Lectures Adapted to a Juvenile Auditory Del
Turner, H. H. (Herbert Hall), 1861-1930
The book A Voyage in Space a Course of Six Lectures Adapted to a Juvenile Auditory Del was written by author Turner, H. H. (Herbert Hall), 1861-1930 Here you can read free online of A Voyage in Space a Course of Six Lectures Adapted to a Juvenile Auditory Del book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Voyage in Space a Course of Six Lectures Adapted to a Juvenile Auditory Del a good or bad book?
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In the entrance hall, Michael Faraday, made dis- coveries as to the behaviour of little bits of wire and glass which seemed equally unpractical; and yet they led to our electric railways, and motor-cars, and aeroplanes, which could never have existed but for Faraday's discoveries made with little bits of wire in this Royal Institution. Another great man follow- ing Faraday, James Clerk Maxwell, noticed that the velocity of light, first detected by Roemer, was the same as a measurement made with... the electro- magnetic apparatus due to Faraday; and he con- cluded that light was electro-magnetic in its action. And then another great man, Hertz, said, " If light consists of waves, and is electro-magnetic, then we ought to be able to get electric waves, " and he found 170 A VOYAGE IN SPACE out that he could ; and his discoveries made wireless telegraphy possible. And so you see a practical discovery which you probably regard as one of the most wonderful of modern times can be traced back step by step to this discovery of Roemer's which seems entirely unpractical !
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