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Dr. Jim Dewar, Sunday, 12-6-15 December 7, 2015

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Dr. Jim Dewar, Sunday, 12-6-15

http://archived.thespaceshow.com/shows/2598-BWB-2015-12-06.mp3

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Please download and read Dr. Dewar’s paper here:  a-technical-note-on-nuclear-rockets-1-2

Guest:  Dr. James (Jim) Dewar.  Topics:  The nuclear rocket, changing the paradigm to use it for economic growth to LEO.  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. Jim Dewar to the show to discuss his plans for the use of nuclear rockets specifically from Earth to LEO.  In addition, Jim’s book (it is out of print) “The Nuclear Rocket: Making Our Planet Green, Peaceful And Prosperous” is being made available as a Space Show fundraiser and we thank Jim for this great gift.  You can get a new paperback autographed copy of this book for a $50 contribution to The Space Show.  Please make your contribution using Pay Pal on TSS or OGLF websites or mail a check to TSS as instructed on the donation page of the websites.  Also, send me an email telling me your $50 contribution is for Jim’s book, provide your full name and your mailing address.  I need this email to know you want the book in exchange for your donation.  As of the time I am archiving this show, I have only ten remaining copies of the book to give away so act fast as once they are gone, this offer ends.  During the first segment of our two hour show, Dr. Dewar outlined his plan to break the nuclear rocket ban on using a nuclear rocket from Earth to LEO.  Jim spent some time explaining the history behind this ban which is not law!  The ban came to be in 1960 as a result of a luncheon meeting.  Listen to his telling of this story.  Do you find all of this frustrating?  I asked Jim how nuclear propulsion would work from Earth to LEO.  As you will hear, he said it was applicable to second or third stages on the rocket, not the first stage of the rocket.  He explains this in detail so don’t miss it.  Most of the first segment was devoted to discussing this ban, the early nuclear rocket history and tests, questions about the Soviet Union nuclear rocket program, the U.S. Congress, and cost comparisons with chemical rockets figuring in the cost for permits, dealing with protestors, time delays, etc. Jim also explained the economic benefits of his unique public private partnership he wants to see created to do nuclear propulsion to LEO and why.  His methodology for making this happen is potentially doable.

In the second segment, we continued talking tech about the nuclear rocket including core issues, the possibility of gas cores, specific impulse for the NTR, then a question came in about supporting the NewSpace agenda of NASA supporting space settlement and low cost space access.  He was asked if the NTR plan he was proposing supported these NewSpace goals.  Don’t miss what he had to say about this as I believe it was an important part of the discussion.  Jim repeated often during the show that as a nation we were nearly $20 trillion in debt and bankrupt. He then explained the economics of his program and why they would benefit NASA and the country in this challenging economic time rather than be deleted as a program that was just too costly.  Quite the opposite, he stated his program was made to order for these tough economic times.  See if you agree.  I do and we talked about it some more at length as we neared the end of our program. I suggested a sales approach that was much broader than just the space industry.   John in Ft. Worth called to discuss many technical issues and core temperatures.  BJohn wanted to know if the NTR should be reusable and refuelable.  Joe wanted to know how to start the program to advocate the public private partnership Jim was talking about and which he fully describes in his book.  Comments came up regarding Dr. Zubrin and the nuclear salt water rocket,  (see http://path-2.narod.ru/design/base_e/nswr.pdf).  Near the end of the show when we were talking about creating the needed policy for the partnership, Dr. Dewar referenced Admiral Rickover as a model for the type of leadership needed to make the NTR project happen.  As the program was ending, questions came up about Thorium and U233.

Please post your comments/questions on TSS blog per above.  You can reach Dr. Dewar about his first book or anything else through me at drspace@thespaceshow.com and I will send you his email address or forward your note.

Audition-Open Lines Program, Tuesday, 10-14-14 October 15, 2014

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Audition-Open Lines Program, Tuesday, 10-14-14

http://archived.thespaceshow.com/shows/2336-BWB-2014-10-14.mp3

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Guests:  Open Lines/Auditions with Dr. David Livingston.  Topics:  Nuclear rocket propulsion was the main discussion topic.  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 this 1 hour 53 minute program focused on auditions for possible new Space Show guests plus Open Lines calls from listeners.  While there were no audition calls, two callers checked in to talk about nuclear propulsion, reactors, fuels, ISP, etc.  Both calls were interesting and instructive.  I also promoted the upcoming Next Giant Leap Conference in Hawaii from Nov. 9-13.  For more information about this conference, visit http://2014giantleap.aerospacehawaii.info.  During the first segment, I went over the audition ground rules for the show and discussed the best way for self-invited guests to be on The Space Show.  The best way is to call an Open Lines program and let us know what you have to say and why you believe you should be on the program as a guest.  Long time Space Show guest and caller Dave Ketchledge called to talk about nuclear rockets and reactors.  We covered lots of information including what it takes to actually turn on and start up a nuclear reactor.  We talked core issues & I inquired about the possibility of a gas core.  Dave talked about new and exotic nuclear fuels, the nuclear waste problem, including how the waste is treated by the advanced design Westinghouse and GE reactors plus those in France.  I asked Dave for his thoughts on the timeline for a nuclear rocket. He said probably 20 years but were we to have leadership in the area and funding, perhaps as early as ten years.  Toward the end of his call, he shared with us a few horror stories where nuclear workers had done really stupid things.

In the second segment, again there were no audition callers so I talked about how to be a Space Show guest, especially if you are self-inviting yourself to the show.  As I said before, the best way to do it is to call an Open Lines show or come in recommended by a previous guest or somebody I know.  I also spoke about listener participation through emails and phone calls with live shows rather than emailing me complaints about the program or guest after listening to the live show.  The bottom line is that we want your feedback and exchange with the guests, not after the fact.  SLS John called to talk about the Classroom show from Sunday, specifically the nuclear component of the discussion revolving around the Aquarius project proposed by Dr. Jim Logan and Dan Adamo.  John was again questioning the 900 seconds of ISP with water as the fuel.  I suggested he post his comments on the blog for that show as I was not the one to respond since Aquarius was not my project.  I did ask John to explain some basics about nuclear rockets, especially the part about the dissociation of the hydrogen atom.  We went over T/M, chemical fuel bonding, molecular weight and what happens with the very high temperatures involved in the nuclear rocket.  I also asked John for his background in the subject and for his bio as he is part of the Great SLS Webinar Debate upcoming on The Space Show on Sunday, Nov. 16 with Rick Boozer.  Finally, during this segment I highlighted some of the upcoming Space Show programs on the schedule.

Please post comments/questions on The Space Show blog.  You can reach either of our callers through me.