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Greg Meholic, Friday, 6-5-15 June 6, 2015

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Greg Meholic, Friday, 6-5-15

http://archived.thespaceshow.com/shows/2487-BWB-2015-06-05.mp3

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Guest:  Greg Meholic.  Topics:  Advanced propulsion concepts and 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.  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 to the show Greg Meholic to speak about advanced propulsion concepts, rocket reusability, and much more.  During the first segment of our 84 minute program, Mr. Meholic first defined what he meant by the term advanced propulsion.  Given this definition, we moved forward to discuss various concepts, propulsion methods, and propulsion research. During this segment, we talked about several propulsion technologies and Greg said thumbs up or thumbs down to their being advanced propulsion.  When it came to nuclear, Greg classified it as an alternative propulsion method, not an advanced propulsion.  Again, don’t miss his definition.  We talked near and intermediate term advanced propulsion concepts though it does not appear anything is really close at hand.  His timeline for a possible advanced propulsion technology was around 20 years.  He said not only do we need to understand the physics much better,  but the propulsion method much compete with current systems and produce benefits including cost benefits.  As far as choke points on advanced propulsion, he said understanding the fundamental physics involved was a big one.  We then talked about funding which is now mostly from companies and other private investor oriented sources.  I asked lots of questions about funding, especially how does one know when the point is reached to either kill the project or keep it going.  Don’t miss what he said about this.  Listeners also asked many questions.  In replying to one listener, he said it would be hard to beat chemical rockets to LEO but the door opens up BLEO though the Moon can be done with chemical rockets.  When asked about the anti-nuke movement and the impact on the nuclear rocket, he had some interesting observations, especially regarding the views of younger people.  When asked for leading advanced propulsion people and concepts, he mentioned former Space Show guest Dr. James Woodward and his work with Mach’s Principle several times during our show.  Greg was also asked about the work of Dr. Sonny White at JSC for warp drive and M drive.  Greg had much to say about his work including Q thruster and M drive.  John from Ft. Worth called in to talk about M Drive & Mach’s Principle along with gravity and magnetic frequencies.

In the second segment, Ashley sent in an email asking about going to the Moon and Mars for settlement and sustainability, wondering if advanced propulsion was needed for either location.  You might be surprised by Greg’s response to this question so listen carefully.  He did say there would be different requirements for the Moon and Mars.  With Mars, he also spoke about radiation and travel times.  Greg then had some things to say about artificial gravity.  One of his comments was that if we understood more of the physics, an eventual advanced propulsion system might enable an artificial gravity system without spinning or the need for tethers.  Brad in Tucson sent in a note asking about reusable first stage rocket launch systems.  Greg was delighted with the question as he works on such systems in his day job and he had much to say and offer about reusable first stage rockets.  He went through a brief summary of some of his work plus those attempting to design such systems including SpaceX.  I asked about a payload penalty with reusability.  Don’t miss his answer.  Our next caller was Marshall and he took us back to the artificial gravity discussion.  Marshal was asking questions about the amount of time spent in 1g as opposed to various fractional gravity loads.  As the program was ending, Greg received the final question which dealt with comparing the quality of government research to private sector research.  He reminded the listener that there very little to no government research funding for advanced propulsion, that it was almost all private sector funding.  He said the private funding was investor based so it comes with a commercial profit focus.

Please post your comments on The Space Show blog above.  Greg Meholic can be reached through me using drspace@thespaceshow.com.

Dr. Robert Zubrin, Tuesday, 6-2-15 June 3, 2015

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Dr. Robert Zubrin, Tuesday, 6-2-15

http://archived.thespaceshow.com/shows/2485-BWB-2015-06-02.mp3

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Guest:  Dr. Robert (Bob) Zubrin.  Topics:  Mars Society Convention 2015, Convention debate topics, HSF to Mars issues & concerns.  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.  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. Robert (Bob) Zubrin to discuss the upcoming Mars Society Convention in Washington, DC from August 13-16, 2015 (see www.marssociety.org/a/marssociety.org/www/conventions/18th-annual-international-mars-society-convention). During our 1 hour 45 minute program without a break, Dr. Zubrin not only told us about the upcoming Mars Society Convention for 2015, but talked about Human Spaceflight (HSF) to Mars by addressing many specific issues, concerns, and topics.  Starting off with the Convention, it is August 13-16, 2015 at the Catholic University of America in Washington, DC.  Special hotel prices are available at the Phoenix Park Hotel (see www.marssociety.org/conventions/18th-annual-international-mars-society-convention/hotel-and-transportation for reservation details).  Bob told us about the keynote speakers but also the special format this year for debates. Several topics will be debated including Moon vs. Mars, Mars One feasibility with the MIT team and Bas from Mars One, how best to achieve commercial space plus other topics.  Bob then started getting questions from listeners & myself on a wide variety of Mars HSF mission topics.  To start with, I asked Bob to comment on what several recent Space Show guests have said about our not being ready for HSF to Mars for a variety of reasons including radiation, other human factors, the costs, and the trip risk which would turn it into a survival mission and nothing more.  Before Bob responded to my specific question, he commented on the recent radiation paper, “How a trip to Mars would mess with your brain.”  Bob was very critical of this paper and spent time going through it and showing where he believed it to be bogus.  You can read Bob’s critique at www.marssociety.org/home/press/announcements/invalidclaimsmadeforwhathappenstoyourbrainonthewaytomarspublication.  Bob spent a good amount of time debunking the original article so don’t miss his comments.  Before moving on, I again asked Bob to respond specifically to what my guests had said as none of them mentioned the paper in question.  We had an interesting discussion on risk taking and the role of government as part of our discussion.  John in Florida called to ask about the concept of a nuclear explosion on Mars per Space Show guest Dr. John Brandenberg.  This led to questions about shortages of PU238, space policy & political leadership. Doug had questions about an Earth Return Mission and later he eventually called in to get a more precise answer to what he was asking.  We talked about one way missions, how best to explore Mars, and the responsible way to tackle the eventual settlement on Mars.  Emmet from NY called in to ask about Elon Musk Mars and NASA plans and why they seem to ignore going for artificial gravity.  Again, Bob had much to say about this issue which he said was different for Musk and NASA.  He felt Musk would address it as the challenge became more real for him.  As far as NASA goes, he said it was criminal to have avoided the issue for decades.  Don’t miss his comments.  Jackie emailed in a question about character in the book “The Martian,” wanting to know if crew were stranded on Mars could they actually do some of the things the character in the book did to survive.  You might be surprised by Bob’s answer.  Matt in Germany asked a question about Mars via the Moon, BJohn asked about the use of a cycler for Mars transportation & Kirk called to talk about an article he had read about fossil ice at Valles Marineris.  Kirk will post a comment about this on the blog after the show is archived.  Next up was the subject of terraforming Mars. Bob had much to say about this plus he offered a possible terraforming timeline. Doug then wanted to know if Bob was referring to paraterraforming when he mentioned the use of Domes on the Martian surface but Bob said no.  Tim called to talk about the radiation paper discussed earlier and mentioned a second experiment saying that antioxidants negated the radiation effects. Bob was not familiar with the second study but summarized his comments about the paper.

BJohn emailed in about rocket advances from the Saturn V for a Mars mission, we talked about what it would mean to use a Falcon Heavy for Mars missions, then Marshall called to inquire about sources of power on Mars, particularly nuclear and getting a large enough nuclear reactor to Mars.  Marshall and Bob talked about a Topaz like reactor.  Another question came up about using the Martian moons for the early human missions rather than Mars.  Bob explained why in his mind this was not a good idea.  He then compared the radiation dosage of long term ISS usage for ISS astronauts to the transit time and radiation dosage for a Martian crew.  Don’t miss what Bob had to say about this.  In Bob’s concluding comments, we focused on the upcoming convention but also on the importance NASA and a HSF mission to Mars in the context of the world today.  This is an important part of our program so don’t miss it.  In concluding, Bob said “It is time again for NASA to astound the world to show what free men can do.”  You will likely hear me use Bob’s closing statement on many future Space Show programs.

Please post your comments/questions on TSS blog above.  You can reach Dr. Zubrin through me at drspace@thespaceshow.com.

Dr. Michael Schmidt, Sunday, 5-17-15 May 18, 2015

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Dr. Michael Schmidt, Sunday, 5-17-15

http://archived.thespaceshow.com/shows/2474-BWB-2015-05-17.mp3

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Guest:  Dr. Michael Schmidt.  Topics: Personal spaceflight medicine, Omics, targeted genetic countermeasures.  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.  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. Michael Schmidt for updates and more information regarding Personal Spaceflight Medicine. Note that the abstract referenced in the second segment has been uploaded to the blog for this show.  During the first segment of our 92 minute program, Dr. Schmidt defined personal spaceflight medicine for us & talked about targeting individuals for specific countermeasures to human factors risks for longer duration spaceflight safety.  We talked about artificial gravity and radiation with our listeners asking questions about both fields.  Our guest cited several examples to make his point.  At one point he talked about the current twin study underway on the year long plus ISS experiment with a Russian cosmonaut as well.  Questions were asked about using pharmaceuticals in space, how they might react with different people, and the distribution methods so far which are not great.  At one point, Dr. Doug emailed in asking about the use of omics for space travel issues and if in fact the use of omics would reveal even more questions that cannot be answered, ultimately delaying long duration HSF missions even longer than they are delayed now.  Don’t miss the guest response to Doug’s question.  Kris emailed in asking about the use of deliberate hypothermia to store Mars bound astronauts, and then another Doug question came in about selecting the best people based on omics for a mission.  Near the end of the segment, I asked our guest if he had done work for Mars One. He explained their limited capacity relationship which I assume ended.

In the second segment, BJohn asked about the possibility of astronauts sleeping in a small vertical centrifuge.  Dr. Rowe called to talk about the issue relating to pharmaceutical use in space.  he talked about delivery methods, malabsorption, etc.  Later, Dr. Schmidt brought up the damage done from sleep deprivation and showed how this is a potential problem for space missions.  Doug emailed in a question about GCRs and radiation, then Dr. Schmidt talked about his new paper on BDNF with his associate Dr. thomas Goodwin, “Protecting Neural Structures and Cognitive Function During Prolonged Space Flight by Targeting The Brain Derived Neurotrophic Factor Molecular Network.”  We talked about BDNF and spaceflight, exercises, mitigation measures, and more. He referenced Mars simulation, behavioral issues and more. You don’t want to miss this discussion.  Dr. Schmidt provided us with excellent closing remarks.

Please post  your comments/questions on TSS blog above.  You can reach Dr. Schmidt through me.

SCHMID~4

John Putman, Friday, 2-27-15 February 28, 2015

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John Putman, Friday, 2-27-15

http://archived.thespaceshow.com/shows/2424-BWB-2015-02-27.mp3

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Guest:  John Putman.  Topics:  Neurofeedback and EEG to improve peak performance in both short & long duration 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 John Putman to the show to discussed neurofeedback in the context of astronaut peak performance training for both long and short duration spaceflight missions.  During the first segment of our 1 hour 26 minute program, Mr. Putman explained biofeedback and the specifics of neurofeedback, neuro-diagnostics and electroencephalography (EEG).  He also explained the linkage of this research to astronauts for both long and short duration human spaceflight missions.  Much of our fist segment provided the groundwork for our discussion, addressing the fight or flight response which is automatic, sensorimotor rhythm (SMR), and more.  Our guest explained how the training is conducted and how it works.  Also discussed was seizure disorder and space adaptation syndrome (space sickness).  Listeners had many questions for our guest including if it was being applied to or made part of suborbital flight training for participants.  Beverly wanted to know if astronauts would have time to do this type of training given how their schedules are planned.  Microgravity came up and John spoke to the fact that humans were 1g and it was simply not known what type of effects would befall humans in prolonged microgravity, up to ten years or more, even with some artificial gravity for mitigation.  As the result of another listener question, John spoke to the fact that the Moon was much closer, only three days away and possibly a good training ground for understanding microgravity, neurofeedback in space and more.  Michael Listner called to support Mr. Putman’s comments and then he brought up the Mars One project which both John and Michael discussed for a few minutes.  As the segment was about to end, a listener asked if the astronauts would be too “macho” to do neurofeedback training.  John said it was actually peak performance training & that much had changed today so he did not see attitude as a problem.  He even cited training feedback with Edwards AFB test pilots and the need to disengage from your stressful activity.  BJohn got in a question about rotation and artificial gravity and Kelly called from Phoenix to inquire about the training and its impact on fluid redistribution related to microgravity.

In the second segment, BJohn led off with another question about using the training to overcome sensitivity to bad smells thinking about sulfur on Mars as a possible example.  John was also asked about integrating neurofeedback training into missions using newly designed hardware such as the Dragon V2, Orion, CST`100, and Dream Chaser.  We talked about technology improvements and the likelihood of soon being able to do some of the training on a small device such as a smartphone.  I asked John about other space agencies doing astronaut training in this area.  He mentioned ESA as well as the Dept. of Defense and athletes interested in peak performance training.  Joan asked him about ISS experiments.  He said none yet and explained the difficult challenges he has had as a small business getting an experiment on the ISS.  We talked about possible gender and race differences but he said there were none and then we talked about sleep loss and how the training mitigates that problem.  John also talked about NASA, I asked about any interest by private space companies such as Bigelow and SpaceX, plus I asked if there had been an experiments with the Navy and submarines.  Visit his websites, http://www.eeginfo.com and http://www.jputmaneeg.com for more information.

Please post your comments/questions on TSS blog above.

Dr. Doug Plata, Sunday, 2-1-15 February 2, 2015

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Dr. Doug Plata, Sunday, 2-1-15

http://archived.thespaceshow.com/shows/2405-BWB-2015-02-01.mp3

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Guest:  Dr. Doug Plata.  Topics:  The initial lunar base for colonization.  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 back Dr. Doug Plata to the show to discuss his ideas and concepts for an initial lunar base which he named Lunar Base One.  Follow along with this important website.   http://www.cislunarone.com/lunarbaseone.htm.  Be sure to click on the link in the upper left hand corner to download the Lunar Base One Reference Material. In the first segment of our 2 hour 1 minute discussion, Doug focused on introducing us to his Lunar Base One concept and Lunar Cots.  To follow this discussion, make sure you go to the Lunar Base One website per the above URL as he follows the information on that site for our discussion.  During Doug’s discussion, he took calls and emails from listeners on a wide range of associated topics, questions, and comments.  Listener questions covered telerobotics, wireless power transfer, artificial gravity & the use of a centrifuge at the base, wired power as in missile wire, laser beam power, battery usage, lunar dust, radiation, water, a lunar greenhouse, and check lists re solar panels, propellant, fuel cells, radiation, and more.

In the second segment, Eric called using a cell in Florida to discuss robotics over humans.  Later, Doug was asked if returning to the Moon would divert resources needed for going to Mars, the moons of Mars, or even an asteroid.  Don’t miss his response to this question.  BJohn asked about line of site communications with Earth or if there would be a need for lots of communication satellites.  Doug and John from Ft. Worth had an interesting discussion on several key points, then Doug spoke to lunar tourism, the transportation needs, then I asked him about changing space policy.  Specifically, I asked what he would say before Congress re changing our policy as to why the Moon were he to testify before both House and Senate committees.  Give your ideas on this on the blog because no matter how cool the technology and engineering may be, without a policy to go back to the Moon, most likely nothing will happen.  Rasmus called from Toronto suggesting the use of mylar over a small crater. You don’t want to miss this discussion.  As the show was drawing to a close, Doug spoke about his return to the Moon track at this year’s Space-Access Conference  which will be in Phoenix in late April.  He finished up his discussion talking about artificial gravity, the use of a long arm centrifuge on the Moon running at about a 5.4 RPM by the lunar team.  He also spoke about inflatables and what he learned in his discussions with the University of Maine professor.

Please post your comments/questions on The Space Show blog above.  You can reach Doug at the address on his website or through me.

               MJ-2011c

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, 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 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, 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 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, 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.

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, 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. 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, 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.  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

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