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Les Johnson, Sunday, 2-15-15 February 16, 2015

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Les Johnson, Sunday, 2-15-15

http://archived.thespaceshow.com/shows/2415-BWB-2015-02-15.mp3

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Guest:  Les Johnson.  Topics:  Solar sails, advanced propulsion, HSF, science fiction books & movies, 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.

We welcomed Les Johnson back to the show to discuss his latest books on popular science & science fiction, solar sails, and much more. In the first segment of our 1 hour 45 minute show, Les began talking about solar sails and their use to go to go around our solar system and eventually to the stars.  There was much interest in the solar sail subject so Les gave us a terrific somewhat technical lesson on solar sails.  We fielded many listener questions and we all learned much about solar sails, their potential, today’s capabilities, materials used, and more.  This was  an exceptional discussion so don’t miss it as solar sails are a very exciting technology for robotic spacecraft.

In the second segment, Les mentioned the Lunar Flashlight and Scout missions.  I asked our guest about the track record for solar sail missions.  If the mission launch was a success, the solar sail mission has been pretty good but there have been issues with the launches on some of the past solar sail missions.  I also inquired about solar sail work, research, and interest around the world and with other space agencies.  A listener emailed wondering if the use of a solar sail made a satellite or a mission more vulnerable to an ASAT type weapon.  We switched gears to talk about the science fiction work Les has done with Ben Bova  regarding mars with his book “Rescue Mode.”  Les talked about his parameters when writing science fiction plus I asked him about the feedback he gets as an author from both his popular science books as compared to his sci-fi books.  You might be surprised by his answer.  Nuclear propulsion came up for discussion and a few listeners wanted to know the human spaceflight awareness level of people when he gives lectures on the topic.  Interstellar flight was discussed as was the movie “Interstellar.”  As we were moving toward closing the program, Less said he believes HSF is going through a golden age and he explained why.

Please post your comments/questions on TSS blog above.  You can email Les at the address he gave out, through his website at http://www.lesjohnsonauthor.com, or me.

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

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

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

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

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

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

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

Tom Olson, 2014 Year In Review, Tuesday, 12-30-14 December 31, 2014

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Tom Olson, 2014 Year In Review, Tuesday, 12-30-14

http://archived.thespaceshow.com/shows/2385-BWB-2014-12-30.mp3

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Guest:  Tom Olson.  Topics:  Space year 2014 in review.  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 Tom Olson back to the show for his annual end of the year review show for the space year at hand, 2014.  During the first segment of our last program for 2014, I asked Tom for positive memorable events in 2014 .  Tom came well prepared for this question.  Do you have the same memorable events list or a different one?  Let us know on the blog.  As Tom was going through his list of memorable positive events and developments for 2014, we took some email questions about Blue Atlas, the Delta IV and human rating it, and of course ULA.  Another listener wanted to know what Tom thought of the idea of a prize for an on orbiting demo propellant depot and fuel transfer.  Toward the end of the first segment, Dr. Lurio called in and talked about fuel depots, markets for them, NASA and more. We also talked about Virgin Galactic and SpaceShip2 plus what may be forthcoming from the NTSB report when it becomes available.  Antares was also discussed before the break.

In the second segment, Jeff from Tucson called in about a possible Netscape Moment.  Tom did not think much of a Netscape Moment, instead he talked about the concept of space scalable.  I got in on the discussion as did others and this led us to our discussing reusability with SpaceX and would it be a game changer.  Later in the segment, more was said about the Delta IV, ULA, Atlas and even SLS.  For 2015, Tom talked about Bigelow Aerospace getting their modules up to the ISS.  He also talked about Dragon V2 and Falcon Heavy.  In addition, Tom mentioned Power Beaming test for SSP in space beaming power from point to point but in space.  Of course SLS and Orion came up. Tom is not supportive of it, Dr. Lurio called in who is not supportive of it and holding up the fort for it was our friend SLS John.  The latter part of the show was an ongoing give and take with Lurio, Tom and SLS John highly engaged in a back and forth but as you will hear, there were no winners.  Tom and I did a bit of reminiscing because we go back with one another for more than a decade.  We wished everyone a very Happy New Year and a great 2015.  And remember, “y’all come back for more in 2015!”

Please post your comments/questions on TSS blog above.  You can reach Tom Olson or any of the callers or emailiers through me.

Dr. Richard Obousy, Dr. Eric Davis, Dr. Harold Sonny White, Friday, 1-4-13 January 5, 2013

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Dr. Richard Obousy, Dr. Eric Davis, Dr. Harold Sonny White, Friday, 1-4-13

http://archived.thespaceshow.com/shows/1923-BWB-2013-01-04.mp3

 

Guests: Dr. Richard Obousy, Dr. Eric Davis, Dr. Harold Sonny White.  Topics:  Faster Than Light (FTL) Travel, Warp Drive, Interstellar Travel. 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.  We welcomed our three guests, Drs. Obousy, Davis, and White to the program to discuss FTL travel, warp drive, and interstellar flight.  More information is available at the Icarus Interstellar website, http://www.icarusinterstellar.org.  We did not take a break during our program.  Also, at times our discussion was technical and scientific. I looked up many terms & used my search engine frequently during the discussion given the advanced nature of the subject and our discussion.  Don’t be shy about looking up that which you may not understand or know about. I promise, if you do it will be well worth your time.  We started with an introduction to Icarus Interstellar, FTL travel, and why interstellar propulsion & travel is important.  Our guests then suggested the two most common approaches to FTL travel included warp drive and worm holes.  For most of the program, we focused on the characteristics and research around warp drive.  Our guests explained their research, including how they were able to develop the theories that reduced the amount of energy needed for warp drive from Jupiter size energy requirements to energy requirements representing the approximate mass of Voyager 1.  Our discussion addressed the Miguel Alcubierre warp drive in light of the advanced work by Dr. White and others.  The concept of the McMonigal Fatal Flaw was addressed with our guests explaining why it was not applicable.  The workings of the warp drive were explained and though the discussion was heavy in physics, I urge you to take the time and embrace & learn about the advanced theoretical physics subjects discussed by our guests.  Later, a listener asked about the use of a sun gravitational lens telescope at a specific AU from the sun as perhaps an alternative to interstellar flight.  As you will hear, such a device would likely be a good tool enhancing FTL travel, not replacing it.  As our discussion progressed, or guests rebutted many of the warp drive criticisms. Near the end of the program, we talked about what was needed to go from the lab and theory to small scale demo experiments to prove out the concepts.  Our guests referenced to the Chicago Pile-1(CP-1) 1942 nuclear experiment & the subsequent step by step evolution of nuclear technology.  Our guests talked about starting small with a demo proof and evolving upwards with more and more discovery, technology, and engineering.  Another example cited for the typical development path included the discovery of the electron in 1897 followed by the discovery of the proton in 1917, and the discovery of the neutron in 1932. Throughout our discussion, our guests put forth compelling reasons why we should be developing FTL travel and interstellar spaceflight.  Their respective concluding comments reinforced the importance and why of our being interested in FTL and exotic concepts.

Please post your comments/questions on The Space Show blog per above.  If you want to email our guests, you can do so through me.

Les Johnson, Sunday, 7-8-12 July 9, 2012

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Les Johnson, Sunday, 7-8-12

http://archived.thespaceshow.com/shows/1809-BWB-2012-07-08.mp3

Guest:  Les Johnson.  Topics:  “Going Interstellar: Build Starships Now!,” and interstellar propulsion & advanced propulsion concepts.  You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, https://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright.  We started our discussion by talking about interstellar travel, his new book, “Going Interstellar,” and advanced concepts, both for NASA and outside the NASA mindset.  Please remember that if you purchase this book from Amazon using this link, Amazon will make a contribution to The Space Show/OGLF:  www.amazon.com/Going-Interstellar-Johnson/dp/1451637780/ref=onegiantlea20. Les told us that both he and his co-editor, Jack McDevitt, had very little trouble getting the authors to contribute to the book which consists of a series of short stories from well known science fiction authors plus scientists.  There is a focus on the plausible and grounded physics so that the sci-fi is rooted in actual physics.  Les took several phone calls wanting to know about advanced concepts and propulsion at NASA and in general outside of NASA. We spoke about many concepts including solar sail technology, nuclear electric propulsion, the fission fragment rocket, faster than light (FTL) travel, antimatter, & the types of possible starships that might be used, plus the time intervals to travel from point A to point B.  We talked about the challenges from the laws of physics, political leadership, funding, & timelines. Les said that barring the discovery of new physics which he is not optimistic about at this time, he does not think FTL travel will be possible. When I asked about the discovery of Higgs-boson as an example of discovering new things, he talked about the discovery of that which is predictive as compared to something entirely new and unknown.  Other topics in this segment included artistic license in sci-fi writing, the role of physics & the imagination, & even questioning the possible role of ET in contributing to advanced propulsion concepts.

In our second segment, Marshall was our first caller & we talked about the French nuclear program, fusion, & the large ITER reactor program.  Les went over many of the fusion energy challenges & we talked about some fuel issues.  Les then told us about some of the future books he is working on & then he had more to say about solar sail technology which is his preference at this time for robotic interstellar missions.  We took a call about the huge Atlanta, GA sci-fi conference, DragonCon ( http://dragoncon.org) as Les will be a featured speaker there this year. As the program was ending, we talked about HSF NASA infrastructure, the Von Braun model for spaceflight, and more about the specific stories in his book.

If you have questions/comments for our guest, please post them on The Space Show blog.  Check out his websites at www.lesjohnsonauthor.com and www.amazon.com/Les-Johnson/e/B002OUOYZQ/ref=onegiantlea20.

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