Reference Books

  • George P. Sutton, Oscar Biblarz: Rocket Propulsion Elements
  • John R. London: LEO on the Cheap
  • Gerald K. O'Neil: The High Frontier

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July 20, 2009


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John B

Hi John. Another great blog entry.

Don't forget to add to your image of humanity's place in nature, random objects in space such as the one that impacted Jupiter on Monday (see links below).

Interesting to note that it was an amateur astronomer who made the initial discovery of the impact. Seems to me that this is a nice illustration of the continued relevance of amateurs and independent technical researchers.

John Bergmans

NASA link:

AP story:

John Bossard

Thanks, John. See, if it can happen to Jupiter, it can happen to the Earth! We've got to get busy and get some life insurance.

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