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Adam Crowl, Sunday, 10-6-13 October 7, 2013

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Adam Crowl, Sunday, 10-6-13

http://archived.thespaceshow.com/shows/2100-BWB-2013-10-06.mp3

Your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm)

Guest:  Adam Crowl.  Topics:  Adam talks about his chapter, “Starship Pioneers,” in the Starship Century book plus interstellar travel possibilities & technologies.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.

We welcomed Adam Crowl to the program for a one hour twenty minute discussion on interstellar travel, propulsion and technology potentials.  During the first segment, we talked about the book Starship Century and his chapter in it, “Starship Pioneers.” the early rocket pioneers and their thoughts on interstellar travel as the idea as it has has been with us and our imagination forever.  We talked about theoretical backing, actual capabilities, time lines, and more. Some of the technologies were addressed such as nuclear fusion plus some of the models he showed pictures of in his chapter in the book.  We also talked about solar sail and then I asked about human flights to Mars and the Moon as stepping stones for interstellar flight.  Antigravity was discussed along with antimatter, lasers, proton beams, and more. Our callers asked about these futuristic technologies and even the types of interstellar missions that could unfold down the road.

In the second segment, faster than light travel came up with Dr. Harold (Sonny) White and his work.  More calls came in regarding gravitational theory, particle physics, and beam propulsion.  Another John called in wondering about the accuracy of today’s interstellar speculation.  Multi-generational starships were discussed plus Adam made a point saying the profits from the book go to support interstellar research.  Check this out at the book’s website, www.starshipcentury.com.  As the program was ending, Randy sent in a note about the inspirational and motivational value of interstellar travel discussions.

Post your comments/questions on The Space Show blog above.  You can contact our guest through his website and read his blog at www.crowlspace.com.

 

 

Dr. John Cramer, Friday, 9-20-13 September 21, 2013

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Dr. John Cramer, Friday, 9-20-13

http://archived.thespaceshow.com/shows/2089-BWB-2013-09-20.mp3

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Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm)

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

We welcomed Dr. John Cramer to the program to discuss his chapter in the book “Starship Century.”  Dr. Cramer titled his chapter Exotic Technologies for Interstellar Travel.  Remember, if you purchase this book using The Space Show/OGLF Amazon portal, Amazon will contribute to The Space Show.  Instructions for doing this are in all archived program summaries on our website and our blog.  Dr. Cramer’s website is http://faculty.washington.edu/jcramer.  During the first segment of our 90 minute discussion, Dr. Cramer talked about his chapter, interstellar spaceflight, exotic technologies, and the Quantum Grounded Theory.  He mentioned James Woodward and his work with Mach’s Principle.  I also asked him about the level of interest expressed by his students in interstellar travel and we talked about timelines for realizing interstellar travel.  Our guest said we needed breakthroughs and the progress in 100 years would depend on realizing key breakthroughs.  Dr. Cramer suggested that our challenges were still in the fields of theory as we needed much better understandings of lots of things associated with interstellar travel.  The issue of space settlement came up in terms of Mars and deep space.  We also talked about worm holes but we spent more time on that subject in the second segment.  I asked if finding the Higgs-Boson was helpful. Dr. Cramer had much to say on this as well as on the LHC and colliders in general.  Dr. Cramer was asked about his science fiction works and his writing for Analog.  We also talked about the impact of our having cancelled our collider to be built in Texas and the impact of that decision on American science for decades following that political decision.

In the second segment, Dr. Cramer went into more detail about worm holes, including an explanation of the “back reaction” issue.  Later, we talked about timelines, budgets and our political funding process.  Near the end of the program, NASA was discussed as was our reliance on large rockets.  Dr. Cramer said we would need to get away from rockets and propulsion thrust if we were to do anything with interstellar travel or deep space.  At the end, he was asked about ET based on the comments Dr. Davies made on his interview earlier this week.

Please post your comments/questions on The Space Show blog URL above.  You can email Dr. Cramer through his website.

Dr. Paul Davies, Monday, 9-16-13 September 16, 2013

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Dr. Paul Davies, Monday, 9-16-13

http://archived.thespaceshow.com/shows/2087-BWB-2013-09-16.mp3

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

We welcomed Dr. Paul Davies to this 65 minute discussion about his contribution to the excellent book, “Starship Century: Toward the Grandest Horizon.” Other topics included interstellar travel, microbiology, human spaceflight, Mars, ET and much more.  We started our discussion with his Afterword in the “Starship Century” book and I asked him about his comments regarding microbes.  One quickly learns from reading his Afterword that it is not the propulsion and engineering that presents the greatest challenge to interstellar travel but what happens to essential microbes needed for life in microgravity and the space environment.  We learned that even in LEO such microbes can transform and become toxic to life.  This is a fascinating microbiology discussion regarding deep space missions to Mars, the Moon, and long interstellar travel. Don’t miss what Dr. Davies said about microbes as it opens up an entirely new study in human factors for human spaceflight.  Other issues we talked about included planetary contamination, microbial ecosystems, figuring out the minimal needed for sustainability regarding the good microbial environment.  Also, what microbes are crucial and those that might be irrelevant for the spaceflight passengers as well as for animals and plants needed for sustaining the mission.  Dr. Davies was asked that given microbiology being a bigger challenge than propulsion and engineering, were we close to having propulsion and engineering for interstellar travel.  You will appreciate his very “witty” answer to this listener’s question.  Faster than light travel came up and so did the work being done around the Alcubierre Drive.  Dr. Davies had much to say about faster than light travel, the speed of light, physics, and related disciplines.  In this discussion, we also talked about both black holes and worm holes.  Later, we talked about the possibility of life in the solar system other than on Earth.  You might be surprised by some of what Dr. Davies said, including the probabilities that Earth might have been visited over 100 million years ago.  Don’t jump to conclusions, listen to the discussion first.  Helen of Atlanta asked why bother with interstellar travel when we can’t even return to the Moon. Again, another terrific response by our guest.  More came up on the Fermi Paradox, the need to stay grounded in fundamental science but to have a vision and healthy skepticism.  Viking and Gil Levin came up regarding the possibility of life on Mars and the reluctance of NASA to do biological experiments regarding the possibility of life on Mars.  A listener asked our guest about ET conspiracy theories and government cover-ups.  In closing, Dr. Davies reminded us to have and conduct healthy speculation which means always staying in tune with fundamental science.  That is what separates speculation from fantasy, Kool Aid, and La La thinking.  As the program was ending, we talked some about his work in cancer research. Make sure you visit his website, http://cosmos.asu.edu.

Please post your comments/questions on The Space Show blog.  You can reach Dr. Davies through his website or me.

Sir Martin Rees, Monday, 9-2-13 September 3, 2013

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Sir Martin Rees, Monday, 9-2-13

http://archived.thespaceshow.com/shows/2079-BWB-2013-09-02.mp3

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

We welcomed back Sir Martin Rees to discuss his chapter in the new book Starship Century: Toward the Grandest Horizon, edited by James & Gregory Benford.  Sir Martin’s chapter, titled “To the Ends of the Universe,” looks forward through time and centuries to address human spaceflight, eventual interstellar travel, life extension & more.  In looking forward, he levies criticism on the past. We talked about several of his comments regarding our past & current space program. Dr. Rees mentioned the need for life extension though for Mars he said we could do that without life extension but we should not fool ourselves as it will prove far less comfortable than Mt. Everest or the South Pole.  We talked about finding planets & the possibilities for life, then we switched to the discovery of quasars soon to celebrate its 50th anniversary. Listeners asked our guest about his comments that the political impetus for current & future space work seems to have been lost, especially in contrast to the Apollo era.  In his response, our guest suggested we need low cost and reusable launch vehicles given how costly everything is today.  He commented that mining asteroids did not make sense other than for ISRU purposes. Before going to break, he was asked about the UK government investment in Skylon which he supported.

In the second segment, we spoke about changes in the UK space activity over the past decade.  Sir Martin made comparisons with the UK, ESA & NASA, especially regarding long term planning & our very short one year budgets.  He suggested our budget process makes us unreliable partners in many respects.  Quasars were again a discussion topic, plus Sir Martin fielded a question from a high school student wanting to know how we know the laws of physics are the same throughout the universe.  Another listener wanted to know about science fiction as a leading indicator for science.  Dr. Rees suggested some excellent books for those interested in reading specific science fiction works. James Benford, editor Starship Century called to point out the excellent reading list in the back of the book, plus he offered us important comments about the book & authors. Near the end, Sir Martin was asked to look forward 10-15 years & tell us his thoughts.  His response focused on finding even more planets around the stars, identifying more threatening NEOs, & even more attention given to life extension issues.  The last two questions asked our guest dealt with the ISS living beyond 2020 asking if that was valuable and also the recent podcast by Dr. Neil deGrasse Tyson that SpaceX would not be able to go to Mars.  Throughout the discussion, he mentioned the private sector doing things government could not, especially due to less risk averseness.

Please post your comments/questions for Sir Martin Rees on The Space Show blog.  You can reach him through me or his Cambridge website, www.ast.cam.ac.uk/~mjr.