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Phil Eklund
Worked at Sierra Madre Games
Attended University of Arizona
375 followers|9,041 views
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Phil Eklund

commented on a video on YouTube.
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Comets have a hydrogen atmosphere, the coma. Tons are produced every second. I do not understand the postulated source of the hydrogen. Does it originate on the surface, or is it entirely captured solar wind?

Phil Eklund

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If Halley's and other long period comets did not originate in deep space, how did they acquire orbits of extreme inclinations and eccentricity?

Phil Eklund

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Periodic comets are consistently dimmer on each return visit.  The mainstream explanation is that it is running out of volatiles; is there an alternate explanation?
Story
Tagline
Founder of Sierra Madre Games, an educational boardgame publisher.
Education
  • University of Arizona
    Aerospace Engineer, 1973 - 1978
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Work
Employment
  • Sierra Madre Games
    Founder
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Male