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Medical Forum / General / Alternative / November 2009bacteria may limit space travel
http://www.spacedaily.com/reports/Study_Bacteria_may_limit_space_travel_999.html Lack of UV, chronic hard radiation exposure, and lack gravity, I suppose could impair immune response. For successful deep space flight, there should be much more radiation shielding for both passengers and their food. Faster nuclear drives would also help. But then again with the current "recession" such thoughts apply to a rather distant future if ever. Trig On Nov 3, 9:09 am, "trigonometry1...@gmail.com |" <trigonometry1...@gmail.com> wrote: > http://www.spacedaily.com/reports/Study_Bacteria_may_limit_space_trav... > [quoted text clipped - 6 lines] > such thoughts apply to a rather distant future if > ever. Russians are discussing a nuke drive. Check Yahoo News. > For successful deep space flight, there should be > much more radiation shielding for both passengers > and their food. Barring vastly more shielding than a spacecraft weight budget allows, shielding is actually counterproductive thanks to shifting the energy of radiation down to where human tissues absorb more of it. | The brighter the stupid burns, the more | | chance that someone will see the light. | +- D. C. Sessions <dcs@lumbercartel.com> -+ > In message <0b7051c6-e54c-4881-94f9-b0ded9934...@x25g2000prf.googlegroups.com>, trigonometry1...@gmail.com | wrote: > [quoted text clipped - 11 lines] > | chance that someone will see the light. | > +- D. C. Sessions <d...@lumbercartel.com> -+ If going to Mars is to be at least semi-sensible thing, it is going to take good shielding. The aluminium can spacecraft of the Apollo era maybe passable as a means of get the various national nauts to the moon but beyond that it is impractical. Which is why I mention nuclear power and space propulsion. And yes what you say is true. It was part of lecture "back in the day." On Nov 7, 5:50 am, "trigonometry1...@gmail.com |" <trigonometry1...@gmail.com> wrote: > > In message <0b7051c6-e54c-4881-94f9-b0ded9934...@x25g2000prf.googlegroups.com>, trigonometry1...@gmail.com | wrote: > [quoted text clipped - 22 lines] > And yes what you say is true. It was part > of lecture "back in the day." http://en.wikipedia.org/wiki/Health_threat_from_cosmic_rays The links do a nice job. > If going to Mars is to be at least semi-sensible > thing, it is going to take good shielding. And I propose to you that carrying around more than 14 pounds per square inch of shielding isn't going to happen. | The brighter the stupid burns, the more | | chance that someone will see the light. | +- D. C. Sessions <dcs@lumbercartel.com> -+ |
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