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Tuesday, September 30, 2008

Palomar's Hale Telescope

Finished reading Ronald Florence's "The Perfect Machine" about the project to build the 200 inch telescope. A couple of things struck me.
  1. The most interesting characters are the ones who are presented as being the most problematic, for example, Edwin Hubble and his huge ego, or Fritz Zwicky and his crazy sounding lateral thinking. Both are presented in a somewhat worse light than the "reasonable" folk like George Hale. Cooperation and cooperative people get things done but the competitive bastards are the ones who are valued more if they manage to prove something. I guess it is because the competitive route is more risky, more likely to move the culture in new directions, painful as it may be to the culture.
  2. The other striking insight has to do with a line near the end of the book that mentions that charged-coupled device (CCD) sensors are so much more efficient than film for capturing light that a one meter telescope today could do what the 200 inch one did with film. This is certainly an example of disruptive technology, given the herculean efforts made to build the Hale machine, with its precision movements and optics. Of course CCD's can be used with the 200 inch mirror, but one must wonder if such efforts would have been made if CCD's had been available in the 1920's.

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