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Dr. Cameron Smith, Monday, 2-2-15 February 3, 2015

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Dr. Cameron Smith, Monday, 2-2-15

http://archived.thespaceshow.com/shows/2406-BWB-2015-02-02.mp3

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Guest:  Dr. Cameron Smith.  Topics:  Interstellar human spaceflight, space settlement, our distant human future.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See http://www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed Dr. Cameron Smith to the program to discuss interstellar spaceflight and our distant human future.  You can see his lecture on this topic, “Interstellar Voyaging: An Evolutionary Transition” at http://www.youtube.com/watch?v=CprziVZHqBk.  During the first segment of our 91 minute program, we talked about the biological and cultural challenges involving interstellar flight.  When asked why he was interested in this field and doing research in it, he talked about how important it was to influence for the good our distant human future.  He talked about human success over time in adaptation as humanity is adaptable.  He then spoke to the need for species insurance.  John in Florida called in with Mars archaeological questions, wondering what may be left of a civilization after a billion years or so. We also talked about models from Earth archaeology around the world in places like the Middle East.  Our guest said there were plenty of unknowns in trying to extrapolate Earth archeology to Mars.  Another listener asked about robots versus humans, a topic our guest had much to say about.  The bottom line is that humans are still a much better tool but robots are also needed.  We talked about ways to influence policy makers and the importance of influencing the public.  You might be surprised by some of our guest’s comments.  We talked about Mars and he said it was a good first step.  He was then asked about the Moon as a first step.  He cited a comment by Dr. Zubrin suggesting that regarding the Moon, “the cops are too close!” Listen to how our guest explained this comment.  I asked several questions about student interest in interstellar spaceflight.  Other topics in this segment included extra terrestrial life and questions about Cydonia which our guest said he had studied in detail and concluded it was not from a past civilization.

In the second segment, Cydonia questions continued to come in and Dr. Smith elaborated on his studies and conclusions.  The Swedish website Glanta came up as our guest had an article published on the site. Their English language site is http://glanta.org/?page_id=2.  The ISS came up with listener questions and our guest was critical of it since it still does not have closed loop environmental and life support.  The field of exobiology was discussed as was the need for low cost space access.  Paula in Denver asked about the need to be inspiring and to inspire students and others regarding space, interstellar flight, and our distant human future.   Cameron said we needed to start with kids and that it was important to do so.  He also spoke to the need to make sure our students have and know how to use the skills of critical thought.  The ARM came up and Cameron said it make no natural sense.  He also said we should be getting serious about going to Mars.  During the show he was asked why this was important, going to Mars, human spaceflight, interstellar flight, all of it.  He cited the need to have a humanity insurance policy as from studying the past as he has done in his field, he is all too familiar with species, nations, cultures, and such becoming extinct.  It does happen and space settlement and interstellar human spaceflight are the insurance programs for our survival.  His concluding remarks repeated saying that space colonization was a responsibility, not a luxury.

Please post your comments on TSS blog above.  You can reach Dr. Smith through me or his university website, http://pdx.academia.edu/CameronMSmith.

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Dr. William (Bill) Rowe, Sunday, 8-31-14 September 1, 2014

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Dr. William (Bill) Rowe, Sunday, 8-31-14

http://archived.thespaceshow.com/shows/2307-BWB-2014-08-31.mp3

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Guest:  Dr. William (Bill) Rowe.  Topics:  Cardiovascular & other issues for long duration human spaceflight.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See http://www.onegiantleapfoundation.org/amazon.htm.   For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed Dr. Bill Rowe back to the program to discuss cardiovascular issues for human spaceflight & EVAs, plus many other issues pertaining to long duration spaceflight.  Note that we experienced serious phone line issues with Bill about 12 minutes into the program forcing us to stop for repairs.  Evidently the fiber phone lines now serving Dr. Rowe cause broadcast equipment problems.  Bill was able to go to a neighbor’s house to do the show but you will hear some line issues plus unusual cuts as I spliced together part of his opening to the point we were able to resume with a good phone line.  Once past that point, there were no further phone line issues.  During the first segment of our 2 hour 11 minute program, Dr. Rowe introduced us to his discussion main points and we began using his website for references throughout the show.  It is important to be on his website and go where he points at various times in the discussion (see http://www.femsinspace.com).  While parts of the discussion relied on medical terms and descriptions, our guest did an excellent job of breaking it down for us non-medical types to easily understand the information he was sharing with us.  Among the issues we talked about were cardiac issues that don’t present symptoms, plus the problems with increased adrenalin secretion in the body which happens in space.  Dr. Rowe spent significant time discussing the adrenalin issues citing known astronaut examples.  In fact when talking about the adrenalin levels in space, he said that within five days of being in space the levels are twice that of being on Earth.  Another issue brought up was possible cardiovascular damage for excessive exercise and here he cited the research projects he had been involved in with marathon running athletes.  He strongly suggested the use of regularly taken electrocardiograms on the crews while in space.  Next, Dr. Rowe talked about EVA issues, specifically cooling.  He explained other risks and made the case for future robotic EVA missions instead of human mission.  Before the segment ended, he had much to say about exercise in space.

In our second segment, Bill reviewed for us his comments on oxidative stress and suggested we follow along with his website submarine model, http://www.femsinspace.com/Oxidative_stress.htm.  A listener then emailed in that the ISS did have an ultrasound on board which could be used for the purposes Dr. Rowe suggested (see http://www.nasa.gov/mission_pages/station/research/benefits/ultrasound.html).  Bill talked more about lunar dust toxicity plus magnesium and calcium usage in space and in general.  He referenced former astronaut Jim Irwin losing consciousness for a brief time on the Moon & he provided the reference for that fact.  Rodent research on the ISS was discussed, then he got a listener question about possible different health standards for government trained and fit astronauts as compared to space tourists and possible private sector astronauts.  Near the end of our discussion, space tourism came up and he pointed out risks for the middle age, overweight segment of the space tourism market.  Bill spoke to pharmaceutical use in space and the issues with it.  Just before ending our discussion, he pointed out that for Mars he thought an all female crew was best given the advantages they have over men.  He did explain his comment.

If you have comments/questions, post them on TSS blog above.  You can reach Dr. Rowe through his website or me.

Dr. John Jurist, Sunday, 2-16-14 February 17, 2014

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Dr. John Jurist, Sunday, 2-16-14

Artificial Gravity

http://archived.thespaceshow.com/shows/2188-BWB-2014-02-16.mp3

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Guest:  Dr. John Jurist.  Topics: Artificial gravity, spinning, tethers, rotation rates, the gravity gradient & more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.

We welcomed back Dr. John Jurist for this two hour discussion on all aspects of artificial gravity.  Note that Dr. Jurist prepared presentation material for this program which you will find on the archived blog entry for this discussion.  Also, I recommend you read the excellent article by our UK guest, inventor, & friend, Robert Walker, “Can Spinning Habs Solve the Zero g Health Issues?  Can Humans Live in Mars or Lunar g? Why Nobody Knows.” (see www.science20.com/print/129424).  During our first segment, Dr. Jurist introduced us to the basics of artificial gravity including the Coriolis effect, the gravity gradient & the info needed from in-space artificial gravity R&D.  Several studies including one by UC Irvine were mentioned, plus other bed rest studies.  He also talked about the Wyle Centrifuge studies which used a short arm for experimentation.  Our attention turned to the presentation material on TSS blog titled “Artificial Gravity Comments–JmJurist.”  Dr. Jurist took us through the tables & charts on his two page document.  He was asked about gender & age differences with gravity as well as small rodent/mammal ISS experiments now or in the future.  Our first caller was John from Ft. Worth who clarified some of his comments from the last Open Lines show plus he talked about the hardware, infrastructure, & engineering issues for in-space experiments.  We talked about the use of tethers & the relationship with microgravity & radiation issues.  With our caller still with us, Jenna emailed asking if either Mars One or Inspiration Mars would provide the needed research that never seems to be done by NASA or others.

In the second segment, Doug from S. California called.  He talked about his T frame tetherball type structure concept as an interim artificial gravity tool but said it was not a long term solution.  He also inquired about tethers, then he wanted to know about the mass of possible tether cables as well as potential materials that could be used for in-space tethers.  Doug then described a reference mission using a long arm centrifuge for the surface of the Moon.  Doug described a very good concept and Dr. Jurist had much to say about it.  We had quite the discussion on possible implementation strategies and the roadmap from theory to operations given our current policy & economic environment, plus the track record on other large projects that never made it.  With Doug on the phone, Ft. Worth John emailed to inquire about stability issues and tidal forces on the tether.  Both Dr. Jurist & Doug made a pass at providing John an answer to his question.  In his closing statement, our guest went over some basic advantages with a tether, the problems of the gravity gradient & the fact that the issues for colonization were very different than for experiments or a reference mission.

Please post your comments/questions on TSS blog above.  If you want to reach Dr. Jurist or our callers, do so through me.