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To: Maurice Winn who wrote (24099)8/30/2001 6:18:24 AM
From: John Walliker  Read Replies (1) | Respond to of 29986
 
Maurice,

What is invention? Kepler's achievement was astounding in its day, and so was the science and engineering involved in successfully launching a geostationary satellite.

However, Clarke discusses many of the principles involved in the design of "extra-terrestrial relays" in his paper, complete with mathematical analysis of the major parameters such as antenna sizes, transmitter power, use of photovoltaic solar wings...

Is this not invention?

I strongly recommend that anyone interested in the history of telecommunications (and the rest of you) read the original article.

lsi.usp.br

John