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Dr. Dorit Donoviel, Dr. Eugene de Juan, Jr., Sunday, 11-23-14 November 24, 2014

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Dr. Dorit Donoviel, Dr. Eugene de Juan, Jr., Sunday, 11-23-14

http://archived.thespaceshow.com/shows/2361-BWB-2014-11-23.mp3

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Guests:  Dr. Dorit Donoviel, Dr. Eugene, de Juan, Jr.  Topics:  Microgravity effects on optic nerve, NSRBI Vision for Mars Challenge, vision issues for long duration spaceflight.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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 our guests Dr. Dorit Donoviel & Dr. Eugene de Juan, Jr. to discuss the National Space Biomedical Research Institute (NSBRI) “Vision for Mars Challenge: A Unique Opportunity for Ophthalmology Companies.”  Read about this project at http://www.nsbri.org/newsflash/indivArticle.asp?id=454&articleID=212.  For additional information on the grants, visit http://www.smartcap.org.  I would also like to thank Kacey White for her hard work with both guests and TSS in making this program possible.  During the first segment of our 97 minute discussion, Dr. Donoviel started us off with background information for the Vision for Mars Challenge, then Dr. de Juan discussed the nature of the eye problems and the effects of low gravity on the optic nerve.  As you will hear from our guests, the Vision for Mars Challenge will award to small companies a grant of $100,000 to “to help identify and advance medical technologies for ocular health in space through collaboration and funding support.”  After this introductory part of our discussion, our guests went into detail about the medical issues relating to optic nerve changes, pressures, fluid balance and more and what this does to vision.  Our guests were asked how these vision issues might impact a crew on Mars or on the way to Mars but unfortunately not much information is known at this time. Also, we do not know the needed level of gravity to offset the optic nerve, fluid and pressure changes.  Our guests mentioned the upcoming year long crew visit to the ISS and that eye issues will be monitored so that accurate data on vision problems can be collected.  Dr. de Juan did go into many of the medical issues contributing to the vision problem including intraocular pressure and fluid balances.  In addition, we spoke about possible countermeasures.  Both artificial gravity with a short arm centrifuge and mechanical intervention via a certain type of pressure garment were discussed.  Medical intervention was also discussed, then BJohn suggested spinning the spaceship would be more cost effective that other types of countermeasures.  Our guests disagreed, saying medical countermeasures would be designed for patients on Earth as well as astronauts so the market size of potential beneficiaries worldwide would be huge as compared to just a handful of astronauts on a spinning spaceship.  Engineering problems were also cited as a severe cost driver in terms of creating artificial gravity for the crew.  Marshall called to ask about Lasik surgery.  Our guests were then asked about gender & other differences.  Don’t miss these discussions.

In the second segment, Dr. Doug was our first caller.  Doug had multiple questions as usual but first he wanted to know if astronauts could be selected for the longer space missions who had a lengthy stay on the ISS and did not show optic nerve changes or adverse effects.  Our guest thought this would be impractical given around 70% of all astronauts show some vision impact from being in space.  Prisms were talked about as part of mitigation in the form glasses with a variable prescription.  We talked about focus issues in space and on a submarine given my comments about wearing prisms glasses.  Doug’s additional questions dealt with doing a lumbar puncture in space as well as GCRs.  Doug and other listeners via email asked our guests if the vision problems were a show stopper for long duration spaceflight missions.  Don’t miss what Dorit & Gene had to say about this.  Near the end of the program, we talked about the impact of space medicine research on Earth medical problems.  The resulting discussion was most interesting, especially given the examples cited by Dorit via ultrasound in space.  The subject of aerospace medicine medical school programs came up and here Dorit explained the innovative program at Baylor’s Center for Space Medicine.

Please post your comments/questions on TSS blog.  You can contact our guests through me.

Andy Weir, Monday, 11-10-14 November 11, 2014

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Andy Weir, Monday, 11-10-14

http://archived.thespaceshow.com/shows/2353-BWB-2014-11-10.mp3

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Guest:  Andy Weir.  Topics:  We engaged author Andy Weir in a thorough discussion of his best selling book, “The Martian” along with the essential engineering & needed technology for survival.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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 best selling author Andy Weir to the program to discuss his book “The Martian.”  For more information, visit his websites, http://www.andyweirauthor.com and http://www.galactanet.com.   During the first segment of our 100 minute show, Andy started out by telling us how he came up with the story idea, & his three years spent in writing the book.  I asked if he used consultants, NASA, or other aerospace experts.  He said no & that most of the feedback and help came through suggestions from people who read the chapters he put up on his website.  Andy also did his own research, math work, physics, and engineering analysis.  He talked about a few errors that were pointed out to him & indicated that the most challenging work were the times and orbits regarding Mars and the missions described in the book. During the show, Andy got lots of email questions and phone calls regarding certain story lines and sections of the book.  He was also asked about life on Mars but that issue was not relevant to his story.  He did get questions about the human waste recycling carried out on Mars & why he chose Mars and not the Moon or another destination.  Sandra asked him about the private space company plans to visit and/or settle Mars given how hard it was for Andy’s character, Watney, to survive.  Andy had very interesting comments on this question including the Elon Musk Mars plans and then Mars One.  Human factors were brought up including radiation, microgravity, vision problems, and more.  Andy did address these issues in the book so listen to his reply to this line of questioning.  As the segment ended, we talked about using Phobos and Deneb for Martian navigation along with Watney’s trek to get to Pathfinder to use its parts for communication.  NASA came up several times in the segment as readers get a pretty good “view” of NASA problem solving, information, data, and PR control, plus amazing creativity.

In the second segment, we had lots of listener emails and phone calls.  Andy was asked what science fiction had influenced him, then he got an interesting email from Andrew in Tucson who had actually worked on the Pathfinder hardware.  Andrew said Andy was spot on accurate!  Dr. Doug called on many topics including using the Hohmann Transfer Orbit which Andy did not use as he designed Hermes, the big spaceship, to work with constant acceleration using ion propulsion.  The Aldrin Cycler was also mentioned.  Listeners mentioned the new movie Interstellar and made some comparisons if they had read “The Martian” and seen the move.  In both segments, we talked about “The Martian” being made into a film for release in a year.  Andy said so far the scriptfollowed the book but he did say he has no editorial input to the movie.  We got a call from Curt in Taiwan who wished there was a PG version of the book given he wants his kids to read it and some of the language is course.  Sara emailed us from Denver asking if Andy had considered making the hero character Watney a woman instead of a man.  Tim was the last caller & he wanted to know if the hard science & engineering would be in the movie.  During this final segment, Andy was asked about how he got to Mars without a transfer orbit.  He suggested we view his animated video on this at http://www.galactanet.com/martian/hermes.mp4.  In addition, he referred us to his Google talk.  You can easily find it by searching for “Andy Weir Google Talk.”

Please post your comments/questions on TSS blog above.  You can reach Andy through his websites or me.

 

Open Lines, Sunday, 7-27-14 July 28, 2014

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Open Lines, Sunday, 7-27-14

http://archived.thespaceshow.com/shows/2287-BWB-2014-07-27.mp3

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Guest:  Open Lines.  Topics:  Orbital dynamics app for iPhone, iPad, NewSpace Conference, art. gravity and more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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.

Welcome to our Open Lines program.  The first segment of our 131 minute program opened with a technical glitch so you will hear some announcement repeats, etc.  We had a damaged wire connection that I did not pick up on until I got several email complaints.  I did start the program over again but you can tell we had a glitch listening to the opening of this program.  Prior to taking calls, I put out some suggested talking points including the recent Chinese ASAT test, the NewSpace 2014 conference, the Asteroids Act 2014, and the recently dismissed ULA petition to the SpaceX-Air Force litigation.  I also went over the upcoming Space Show schedule.  Our first caller was Doug from Australia who wanted to talk about his app for the iPhone and iPad, Leo-Low Earth Orbit.  Search for that title in the App store. You can find out more about his app, orbital dynamics and the uses for this app at http://leo-lowearthorbit.com.  For those of you wanting to try out the app but using a different platform for your smartphone, email Doug for assistance.  You can reach him through his website plus he gave out his email address on air.  Marshall called in to talk about the need to take on more risks for human spaceflight. He also talked about the RD-180 rocket motor.  John from Ft. Worth called in to give us his theory of ducking jury duty since I mentioned I had jury duty the end of the week and had to cancel the Friday show because of it.  When he got around to space, he wanted to know if the Aquarius paper had been uploaded to the SEI website per a recent Space Show discussion.  You can find the paper at http://www.spaceenterpriseinstitute.org/downloads.  As the segment ended, we started talking about artificial gravity and asking about the gravity RX needed for HSF plus other related issues.

In the second segment, I read an email from B John in Sweden who believes he has the answers to the human factors challenges and criticizes both space doctors and me for not recognizing his solutions and what he has said on a past show regarding known 17th century solutions for the human factors challenges.  I read his email in full, then promised him a guest appearance on The Space Show providing he bring credentials, facts, science, medicine, numbers, etc. to his discussion.  I said he could not do a Space Show program on this topic with only his hunch, his ideas, unfounded theories, ideology, & religion. He needs to come to the debate with facts.  You can hear more on this subject by listening to my reading of his emails on the July 22  program with Dr. Mark Shelhamer.  If he can support his theories, you will see his show listed on the website newsletter for coming attractions and in the weekly newsletter for the time and date of his interview.  Atty Michael Listner called in to talk about the Asteroids Bill 2014 in Congress which we discussed in detail.  Google Asteroids Bill 2014 and you can easily find it. It’s a very short read, about five pages.  We also talked about the SpaceX-Air Force litigation and the court dismissing the ULA petition though mandating negotiation talks between SpaceX and ULA.  Rick called in to talk about having won the Lightening Round at NewSpace.  The company, CubeCab (www.cubecab.com), intends to place specific cubesats in LEO one at a time. He talked about using air launch so check them out at their website.  Rick also told us that we could see the Newspace 2014 videos by going to http://www.youtube.com and searching for NewSpace 2014.  There you will see most of the talks and panel discussions from the conference.  You can email any of the guests for today’s show through me.

Please post comments/questions on The Space Show blog.

 

Dr. Mark Shelhamer, Tuesday, 7-22-14 July 23, 2014

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Dr. Mark Shelhamer, Tuesday, 7-22-14

http://archived.thespaceshow.com/shows/2286-BWB-2014-07-22.mp3

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Guest:  Dr. Mark Shelhamer.  Topics:  A look at the risks associated with long duration human spaceflight.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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. Mark Shelhamer, Chief Scientist of the NASA Human Research Program to the show to discuss the critical risks associated with BLEO long duration HSP. You can hear his FISO talk on this topic from April 2, 2014 at http://spirit.as.utexas.edu/~fiso/telecon/Shelhamer_4-2-14/Shelhamer.mp3.  His associated Power Point can be downloaded at http://spirit.as.utexas.edu/~fiso/telecon/Shelhamer_4-2-14/Shelhamer_4-2-14.ppt.  During the first segment of our 95 minute discussion, Dr. Shelhamer started off saying  we would be talking about beyond low earth orbit only and that many of the risks are unknown since we have very little experience with BLEO.  Much of what we do know is extrapolated from our current knowledge base plus our Apollo experience.  Next, our guest defined three major areas/issues.  First he listed medical issues which he later described as onsite medical treatments for various complications, illnesses, surgical needs and such.  He classified physical deconditioning issues such as muscle and bone loss issues, cardio vascular issues in a different category.  The second group he identified had to do with radiation, and the third group included psychological-social issues.  I asked about Microgravity not being in the top three and he said because those issues are likely a constant for both LEO and BLEO missions.  He then talked at length about the challenges needing countermeasures/mitigation.  He did not say these were showstopper challenges but they do require effective countermeasures.  For example, he said humans could probably survive a trip to Mars today providing the hardware & life support was up to the job but their goal is to get the crew there in good condition, to be able to do effective work, and to return safely.  He did not think those goals could be obtained today.  I asked if money was a primary issue and it was not though he said more money is always helpful. He talked about the time needed for some human studies, team studies, and research, sometimes extending even longer than a year.  He then took us through the three categories to tell us what NASA was doing & how it was doing in that research area. You might be surprised by what you hear.  I certainly was.  Later, we talked about ocular/vision issues which are now getting front page attention.  He explained the latest theory causing the problem as possible fluid shifts.  Listen to this discussion.  Note that once we start with BLEO HSF, we may find other problems that do not now show up now.  Also, we may develop a countermeasure for one problem but that opens the door to lots of other problems currently unknown.  One tool he talked about that was being tested on the ISS Russian sector was lower body negative pressure.  Artificial gravity was a big part of our discussion.  While everyone is enthusiastic about it, he made the point of saying we don’t know the needed spin rate nor do we know what level of gravity is needed for humans or for how long. Just spinning a spacecraft without knowing this information is unlikely to be successful let alone cost effective or economic. He also pointed out that artificial gravity is costly, requires lots of energy, a huge spacecraft which means lots of mass to orbit, & to do it, it needs to be done in a way that maximizes the benefits for the crew.  Without knowing the precise spin rate and gravity needs for humans plus how long the crew needs to be in artificial gravity, it is likely it won’t be done just for cost and economic reasons alone.  Charles emailed in about bed rest analog studies.  Joe sent in a question about lower back pain & spine issues.  As the segment ended, I asked him if humans were lousy candidates for BLEO spaceflight.  Don’t miss his answer.

In the second segment, we took a call from Dave about nuclear submarines as an analog for HSF studies.  Our next topic was space radiation which our guest discussed in detail.  I then took two email questions from B John in Sweden.  He asked about the benefits of microgravity for disabled folks, then I read a longer email from him suggesting solutions for the microgravity, psychology, and radiation issues already existed and why was NASA not proposing and developing “these simple non-medical solutions to the problems you describe.”  Dr. Shelhamer responded to his email item by item. For the most part, he agreed with what B John was saying except that his information and perspective were limited and missing key components of the scenarios he was talking about.  Mark explained why our listener’s comments were way too simple and cited some scenarios to illustrate this.  It was a fascinating reply to what many of us believe are already effective countermeasures.  Unfortunately, while what many of us suggest is correct, what we suggest does not go far enough and does not contain the specifics and details of what is actually required to make a specific countermeasure work.  Otherwise, the countermeasures are far more complex than what B John asked about in his email which you will hear me read on the program.  I asked Mark about genetic modification and that took us to the subject of personalized countermeasures.  We talked about pioneering/space settlement, childbirth & children in the space environment, even gender differences for BELO HSF.  I asked about the differences from his perspective of doing HSF to the Moon, an asteroid, Mars, or Deimos.  There are differences, don’t miss his response.  As the program was ending, I asked if a commercial company without gov. funding could decide to do a BLEO mission without all the costs and safety concerns of NASA.  Mark said it might be possible though the costs of the missions and the technology needed would make it very hard for a commercial company to carry out.  He said a short cut bare bones mission might be achieved by a commercial company but the risks for the crew would be extreme.  If you were running a commercial company and funding such a mission, would you accept these risks, plus the risk the crew might not be able to do much or be effective once they got to their destination? As the commercial company CEO, would that be a good use of company money or would you dismiss what people like our guest today have to say about these issues.  Let me know your thoughts by posting them on the blog.

Please post comments/questions on TSS blog above. Mark can be reached through me or through his PPT presentation address.

Space Show Webinar, Sunday, 5-25-14 May 24, 2014

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Space Show Webinar, Sunday, 5-25-14

Partial Gravity, Tethers, Artificial Gravity

Joe Carroll, Dr. Jim Logan, Dr. John Jurist

http://archived.thespaceshow.com/shows/2249-BWB-2014-05-25.mp3 — Audio only

http://vimeo.com/channels/thespaceshow — Webinar Video

Guests:  Joe Carroll, Dr. John Jurist, Dr. Jim Logan.  Topics:  Partial/Artificial gravity, tethers, NASA, HSF & more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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.  To see the video broadcast for this webinar, please go to http://vimeo.com/channels/thespaceshow.  Note that the audio only & video archive will be posted at the same time once the video is edited, processed, and uploaded to the Vimeo Space Show channel.  Joe Carroll has presentation material on The Space Show Blog which he referred to throughout our discussion so you may want to download the material or have it available to you when viewing the webinar.

We welcomed back to the program Joe Carroll to follow up on his May 2011 Space Show Classroom program on the same subject.  Our panel members included Dr. John Jurist and Dr. Jim Logan. All of us were part of the May 2011 program on this same topic.  During segment one of our 2 hour 10 minute webinar, Joe Carroll went over his background, interest, and experience in the subject dating back to 1981.  Joe discussed his recent work and updates including his concerns for the rotation rate, Coriolis effect & the absence of any substantial progress in the area.  He directed us to Slide 2 & the specific language used in the 201 US National Space Policy introduction.  Our guests talked about missed opportunities by NASA & others to do the essential research needed to confirm the gravity prescription for humans.  Our guests also talked about the amazing amount of unknowns regarding the effects of microgravity or Zero G on humans as we are a 1 G species.  The issue of space settlements came up & I asked our guests if we were jumping the gun pushing settlements when so much of the human factors work remains unresolved and even unknown.  Joe talked about two extremes in the approach to settlements.  He said one extreme was to simply prove issues by walking.  That is, just try it.  The other extreme was to do “endless research and studies,” a critique often mentioned by space advocates.  Jim pointed out that essentially knowing nothing about the Gravity Prescription despite 53 years of human spaceflight experience doesn’t rise to the definition of “endless research and studies.” Apollo was the walking theory for the most part.  Our guests then talked about NASA plans for an outpost as compared to a settlement, specifically for the Moon.  During this segment, we received several listener emails which the guests responded to.  During this time, Jim continued to state that it was essential that we know at least the basic outlines of the gravity prescription for humans for long duration interplanetary spaceflight.  Our guests talked about the ISS and the role it could play in supporting gravity research.  Joe continued to discuss more of his slides and our panel members had much to say about the discussion. Toni called at the end of the segment to ask about 1 RPM spin rate and mentioned that SpaceX said it wanted to go to Mars by 2020.  Here is the article Tony referenced:  http://www.dailymail.co.uk/sciencetech/article-2634046/Elon-Musk-says-SpaceX-making-progress-Mars-colony-2020-plans-sell-tickets-500-000.html.

In the second segment, we decided to hold the listener emails until the end of the broadcast to allow Joe time to finish his slides and state his conclusions.  We started off with Slides 6, 7 & 8.  Joe progressed to talk about the inflatable tunnel, some of the technical aspects including specs and diameters and why one was better than the others.  Joe continued taking us quickly through the slides but for those interested in the details, pay close attention to them or contact Joe as his email address is on his presentation material.  Joe spent some time this segment talking about doing Gemini-like tether experiments and he also referred us to Robert Walker’s work.  Robert is a Space Show guest from the UK who has done excellent work on the issue of partial gravity based on Joe’s work with tethers, etc.  Check out Robert’s paper at
http://www.science20.com/robert_inventor/crew_tether_spin_for_artificial_gravity_on_way_to_iss_stunning_new_videos_space_show_webinar_on_sunday-137070.  Don’t miss the links to the tether spin videos in his paper.  The subject of rocket reusability came up and again, Joe and our guests had much to say about this so don’t miss it.  Also in this segment, there was more focus on spin rates.  Joe took us through is conclusion slide which is Slide 20.  He talked about the difficulty in selling space as the next stuff and said one never launches with cutting edge hardware.  We then fielded second segment listener emails on a variety of topics, then we talked about people wanting to go to Mars with the just do it concept mentioned in the first segment.  Several Dr. Zubrin comments were used as illustrations along with SpaceX plans to do Mars by 2020.  All of our guests said there was a significant difference in a short trip to the Moon with Apollo where the decision was made to take the risk for a few days but that going beyond LEO for a long trip to Mars for example was a totally different thing altogether.  Jim used long duration sailing voyages as an example of how the issues for the crew once the long duration trips were started turned out to be very vastly different than for short, easy, turnaround ‘sortie’ voyages. Once transoceanic voyages were attempted it didn’t take Captains, crews or their respective patrons long to realize long duration voyages came with radical new levels of complexity and increased human risk.  We talked more about tethers as well.  Jim made the point that the average time spent on the Moon per Apollo lunar moonwalker was only 2.06 days, a woefully inadequate time to ascertain increased risk.  Joe also talked about the possible study & use of 0.06 G as explained in Slide 8.  I asked each guest for their concluding remarks, starting with Dr. Logan.  His take away was that it is critical to know the gravity prescription. Dr. Jurist was next saying there was no useless research and that gravity research may very well benefit us here on Earth in ways we can’t even imagine at this time.  Joe summarized his concluding thoughts per his last slide, talked about his possible plans to be more proactive with his work and suggested easy experiments that could be done with a Dragon and the spent first stage even on an ISS mission.

Please post your comments/questions on The Space Show blog above.  You can reach all of the guests through me but as stated earlier, Joe lists his email address on his presentation material.

Partial Gravity IAC2010 Presentation revised 2014May22

DesignConceptsForAMannedArtificialGravityResearchFacilityForIAC2010Sept14 rev 2014May22

Dr. John Jurist, Friday, 5-9-14 May 10, 2014

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Dr. John Jurist, Friday, 5-9-14

http://archived.thespaceshow.com/shows/2241-BWB-2014-05-09.mp3

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Guest:  Dr. John Jurist.  Topics: Space program related medical & biotechnical advances, spinoffs, human spaceflight.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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 back Dr. John Jurist to discuss some space program related medical and biotechnical advancements to illustrate some of the benefits and importance of human spaceflight.  Listeners also asked him about radiation and one listener in particular answered my question as to why so many space advocates & enthusiasts dismiss the human factors when planning their versions of a humans to the Moon or Mars mission.  During the first segment of our 90 minute discussion, Dr. Jurist talked about the former astronaut Deke Slayton’s experience with NASA and spaceflight during NASA’s early days when it was discovered that Deke had atrial fibrillation (afib) regarding his heart rate.  Given that I’ve made it public that afib was the reason for my medical leave of absence plus I talked on air about my cardiac ablation procedure at UCSF Medical Center, it seemed appropriate for Dr. Jurist to open with that topic.  Dr. Jurist showed how Deke’s afib experience was in many ways, with NASA research, the root of biotechnology and patient monitoring, wireless monitoring, and even the early days of afib research.  He talked about early space and aviation companies making the monitoring devices for the patient & medical public though this is hardly ever mentioned when talking about NASA spinoffs.  Listeners and I asked lots of questions about these advancements coming from sources other than NASA had NASA not been around.  Would we have had them anyway and around the same time?  Don’t miss what Dr. Jurist had to say in response to this line of questioning.  Dr. Jurist also spoke about bone density issues and osteoporosis analysis and mitigation devices and drugs, many of which have been tested and used in space.  Also, aerospace companies made the initial hardware used for bone density analysis.  Other human factors issues came up and were discussed including vision problems such as a higher incidence of cataracts for astronauts, plus issues probably resulting from fluid shifts in the eye due to microgravity.  John talked about the use of ablation procedures throughout the medical profession and Holter Monitoring for cardiac issues.  He also noted that early bone monitoring was developed by lunar related companies.  Our guest was asked just how important the medical advancements are to HSF and he said very important but they have been undersold to policy makers and the public.  They are also complicated to explain and understand.  Radiation was discussed and turned out to be a significant part of the discussion in Part 2 of our program.  Toward the end of the segment, I asked why so many space enthusiasts seem to dismiss the human factors.  Fortunately, B.John in Sweden provided what I think was an excellent answer to the question which we took it up in the second segment.  However, his note said the following:  “About 500 humans have been to space. No increase of radiation related health effects have been observed. No one have died in space, only during starting and landing. And that’s because of technical malfunctions with catastrophic explosions. That’s why most listeners think that Dr. Jurist grotesquely over estimate the imagined hazards of space flight. There exists no data at all to support his pessimistic claims.”  While I disagree with his analysis and conclusions, I do think his reasoning is held by many and it does go a long way to explain why so often the human factors issues are dismissed by some in the greater advocacy community.  Before the segment ended, I asked John to talk about the April 4, 2014 presentation at Rocky Mtn College by Walt Cunningham. The video of Walt’s talk is on our Space Show Vimeo channel and the audio is now archived on our website and blog.

In the second segment, Dave Ketchledge called to speak to the radiation issue as Dave was part of the nuclear Navy and worked in the nuclear power plan industry for years.  He had much to say about the radiation risks that debunked B.John’s comments.  Both he and Dr. Jurist spoke to beta and alpha particles, some shielding material ideas, & changes in the radiation standards used by NASA.  Later, Dr. Jurist responded to a question about space being engineering driven with the medical issues not always receiving the top priority in architecture development and mission design. B.John sent us additional emails regarding radiation, supporting art. gravity, and suggesting why NASA does not want to do HSF.  Don’t miss our responses to B.John’s emails though I said again I thought his explanation to my initial question was on the mark.  In his summary, Dr. Jurist suggested the bio medical field received important benefits from our early and ongoing space program.  He also said going to Mars, the Moon, or an asteroid would most likely produce huge benefits and medical advancements, and that should be reason enough to have a robust human spaceflight program.

Please post comments/questions on The Space Show blog above.  You can reach Dr. Jurist through me.

Robert Walker, Friday, 3-14-14 March 15, 2014

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Robert Walker, Friday, 3-14-14

http://archived.thespaceshow.com/shows/2207-BWB-2014-03-14.mp3

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Guest:  Robert Walker.  Topics:  Artificial gravity, Earth gravity, life on Mars, and more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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.  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 back Robert Walker from the UK to discuss artificial gravity with us given our recent Space Show programs on the subject.  There was an audio issue with this program so listen carefully so you don’t miss anything.  During the first segment of our 90 minute program, Robert went over some of the basics such as the Coriolis effect, the gravity gradient, tethers, centrifuges, the vestibular effect, and more.  He also went over linear acceleration, spin rates, Russian experiments, issues facing space tourists, and spinning a Dragon capsule.  Robert has written many articles on artificial gravity which can be found at www.science20.com/space.  One such article was discussed yesterday. See  www.science20.com/robert_inventor/blog/ingeious_idea_soyuz_crew_tether_spin_way_iss_artificial_gravity_almost_no_extra_fuel-131278.  Also, check out www.science20.com/print/131279; www.science20.com/print/131278 & www.science20.com/print/129424.

In our second segment, Robert talked about both Inspiration Mars and Mars One as it relates to spinning to create artificial gravity, the number of revolutions per minute, simulate programs, and his favorite, a 2-3 year precursor mission at Earth L2.  He wants the mission designed to be a comprehensive test bed for artificial gravity.  Later in the segment while discussing Mars, he suggested we orbit Mars and not land on the planet.  Listen to his reasoning for this type of human Mars mission.  For one thing, he said its much safer to be in orbit.  We then focused on the possibility of microbial life on Mars, we talked about the Viking Labeled Release experiments.  Robert was asked a question about the sleeping centrifuge (you sleep horizontal as one does on Earth).  Partial gravity was discussed as well.  Robert said many times that we must find out what is going on with Mars. He mentioned the Phoenix mission which Mars One is planning to copy to some degree with its robotic mission to Mars in 2018.

Please post your comments/questions on TSS blog.  You can reach Robert via his articles or through 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, http://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.

Golden Oldie Replay, Classroom Art. Gravity Show, 2-14-14 February 14, 2014

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Golden Oldie Replay, Classroom Art. Gravity Show, 2-14-14

Featuring Drs. Jurist & Logan, Joe Carroll from May 3, 2011

http://archived.thespaceshow.com/shows/2187-BWB-2014-02-14.mp3

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Guests:  Classroom:  Dr. David Livingston, Joe Carroll, Dr. John Jurist, Dr. Jim Logan.  Topics:  Manned artificial gravity research station in LEO.  Please note that this program originally aired as a Space Show Classroom program May 3, 2011.  This replay is being brought to you today as a result of the interest expressed in the subject during the Open Lines program of Feb. 2, 2014.  As this is a Golden Oldie replay, there is no live participation with this program.  If you have questions or comments for the co-hosts or Mr. Carroll, post them on The Space Show blog for this entry.  In addition, when the original Classroom program first aired, Mr. Carroll provided presentation material. You can see this material by going to http://spaceshowclassroom.wordpress.com/2011/05/01/lesson-three-presentation-material-5-3-11 and clicking on the two items available for review and download.  Also, the summary below is the unedited summary from the May 3, 2011 Classroom program which is posted both on The Space Show website archives for that date as well as on The Space Show Classroom archives for that date (http://spaceshowclassroom.wordpress.com).

Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://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.

This two hour plus Classroom program was continuous without a break.  For this program, refer to the Power Point presentation by Joe, “Design Concepts for a Manned Artificial Gravity Research Facility.”  Mr. Carroll took us through this presentation slide by slide, plus he responded to listener and co-host questions throughout the program.  You can find this presentation plus his longer IAC Conference paper on The Space Show Classroom blog under Presentation Materials for our Classroom program for May 3, 2011.  Rather than writing a summary of this program, let me say that Mr. Carroll has given considerable thought to the engineering and human factors/human physiology issues regarding an artificial gravity research station in LEO.  Listener questions addressed technical issues relating to spin, center of mass/gravity, hits by orbital debris items and more.  Throughout this Classroom discussion, Joe took us into the technology, operations, and why’s regarding his artificial gravity research station.  Many issues were discussed including but not limited to Mars & lunar gravity, .06 G, spin rates, the Coriolis effect, the Gemini experiments, a Moon/Mars Dumbbell Concept, Airbeam tunnels, radial structure lengths, and much more.  Toward the end of the program, we discussed the economics, costs, and who might pay for and deploy such a station.  You will hear Joe talk about the present economic, cost, and R&D uncertainties for such a project, but you will also hear him talk about the commercial potentials, who should be given “free” access to the research station and why, the use of it with Space X as well as Bigelow, and why not doing it as a NASA project makes sense though he advocated NASA as a customer.  At the very end, I asked Joe about building some small models to help those of us who are not engineers in understanding and even visualizing his concept.  He liked that idea, talked about larger models of the size of a Boeing 737 cabin (he used this cabin size throughout his discussion and presentation), and possibly locating it at a company such as Space X.  As we concluded our discussion, all of us said that after 50 years of human spaceflight, to not be able to answer any of the questions regarding the issues discussed in this program was criminal. Furthermore, as you will hear Dr. Logan and the others say, you can determine the credibility of a human space program by the speed and determination of the commitment to understanding the necessary gravity needs for people, plants, and animals in space.  If there is no commitment to understanding these issues, the program is more likely a rhetoric only program.

Post your comments & questions on TSS blog URL above.  All participants can be emailed through me at drspace@thespaceshow.com.

Open Lines, Sunday, 2-2-14 February 3, 2014

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Open Lines, Sunday, 2-2-14

http://archived.thespaceshow.com/shows/2178-BWB-2014-02-02.mp3

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Guest:  Open Lines with Dr. David Livingston.  Topics:  Artificial & natural gravity, Leonardo DiCaprio, HSF to Mars.  Please direct all comments & questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com.  Comments & 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.

Welcome to this two hour one minute Open Lines discussion on what turned out to be mostly about artificial gravity.  While there were actually two breaks in this program, since the topic was the same throughout the full show, I am archiving this as a single segment summary.  We started the program by my making announcements, then reading parts of an article that recently appeared in the Turlock Journal (www.turlockjournal.com/section/26/article/23874) that talked about the green efforts by actor Leonardo DiCaprio but also pointing out his having arranged to be an early passenger onboard SpaceShip2.  The author of the article, Dennis Wyatt, then pointed out the hypocracy of Mr. DiCaprio by examining the carbon footprint of SpaceShip2 & comparing it to cars & other things, pointing out the enormous consumption and carbon footprint that will be unloaded on Earth by Mr. DiCaprio’s flight.  I read parts of the article to point out the hypocracy among those that preach to us to do as they say yet they seldom if ever walk their own talk.  I also mentioned articles in the informative menu of The Black Bear Diner Gazette from their Emeryville, CA menu, one of which was an old news article saying that NASA Administrator Thomas Paine predicted & had a goal of doing a HSF mission to Mars by 1981-82.  Some of the callers for today’s discussion did offer comments on both the DiCaprio article as well as wondering if we could have gone to and from Mars with astronauts back in 1981-82.  However, by far, the topic of the day was artificial gravity, a topic which really surprised me.  The callers and those sending emails wanted to talk about artificial gravity, their understanding of it, how to achieve it, their analysis of it, and more.  The callers talked 2 RMs, 3 RPMs, 4 RPMs, we talked about some of the comments by the life scientists on this subject on previous shows, much of which was discarded by the callers who had a focus on engineering and physics and their own perspectives.  We also talked about the difference between partial gravity & full 1 g artificial gravity.  I mentioned that many were unsure that 1 g of artificial gravity would be the same as 1 g here on Earth but that was quickly discarded by all callers and those sending in emails.  Our callers also talked about experiments that should take place using free flyers adjacent to the ISS to study some of the artificial gravity questions in preparation for long duration human spaceflight.  Because of the unexpected interest in artificial gravity, I have decided to arrange for updated programming on the subject with “experts” representing aerospace medicine, life scientists, engineers that would be designing space based centrifuges, and more.  I will be announcing these programs as they are scheduled & they will appear in the weekly newsletters.

Please post your comments/questions for this show on TSS blog above.  You can reach any of the callers to this program by sending your email through me at drspace@thespaceshow.com.

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