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Brett Hoffstadt, Friday, 2-20-15 February 21, 2015

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Brett Hoffstadt, Friday, 2-20-15

http://archived.thespaceshow.com/shows/2419-BWB-2015-02-20.mp3

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Guest:  Brett Hoffstadt; Topics:  We discussed his book, “Ho to Be a Rocket Scientist: 10 powerful tips to enter the aerospace field and launch the career of your dreams.”  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 Brett Hoffstadt to the program for this 62 minute discussion regarding his book and his suggestions for how to become an aerospace engineer.  Visit his websites for me information, http://howtobearocketscientist.com & http://www.engineeryourinnovation.com.  Please note that later in the segment we had to pause the program to restart one of our streaming servers.  I apologize for this inconvenience.  During our program, Brett, in discussing his book which he said was mainly targeted to high school students but also some middle school students, took us through the ten tips and discussed each of them.  The ten tips in the book are 1)Reflect On Your Passions; 2) Expand Your Concept of Rocket Science’ 3) Associate with People In The Field; 4) Read A Book On Rocket Science; 5) Watch A Movie About Rocket Science; 6) Make a Short Take-Off (STO) Into The Workplace; 7) Use Free And Informal Education Resources; 8) Know How To Apply For a Job; 9) Find A Mentor; 10) Appreciate And Work On The Soft Skills.  Listeners asked him to create a chat room for something like “office hours” with students who might be interested in talking with him.  In addition, it was suggested he create a companion workbook for students who wanted to go further than just reading the book.  During our discussion of the first few tips, Brett suggested a book on his reading list, “Mindset: The New Psychology of Success” by Carol Dweck. Do It Yourself Space and the Maker Faire movement came up & Brett was supportive of both efforts.  Listeners had several questions about some of the specific tips Brett discussed.  He was also asked for additional tips not included in the book.  As the program was ending, Brett told us about his blog, the success stories on the blog and subscribing to his blog. His blog can be found at http://howtobearocketscientist.com/blog.

Please post your comments/questions on TSS blog. You can reach Brett Hoffstadt through the address he gave out on air, his websites, or through me.

 

Dr. Andrew Rader, Tuesday, 1-20-15 January 21, 2015

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 Dr. Andrew Rader, Tuesday, 1-20-15

http://archived.thespaceshow.com/shows/2397-BWB-2015-01-20.mp3

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Guest:  Andrew Rader.   Topics: We discussed his videos, aerospace engineering lectures and much more from his website.  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. Andrew Rader to the show to discuss his aerospace engineering lectures and other material on his website, http://www.andrew-rader.com as well as his YouTube channel.  You can access all his material, his YouTube channel and his book through his website.  During our one segment one hour discussion, Andrew talked about his Mars cooking video regarding his eating bugs.  We had quite the discussion about this.  Crickets anyone?  Next, we talked about going to Mars and he introduced us to his YouTube channel which has 74 videos and more on it.  His aerospace engineering class lectures are there too and very popular with students, especially those wanting to see if aerospace engineering might be the path for their studies.   Joe asked our first email question about the necessity for a flyby or human orbital mission of Mars prior to humans landing on Mars.  We then discussed Mars, why a one way mission, and the Moon vs. Mars.  Other topics included spacecraft and rockets in general, Apollo, robotic missions, and more about human spaceflight.  At one point I asked Andrew how he stated the purpose for our going into space.  Bethany asked Andrew to explain what was meant by the term ecliptic. In response, Andrew offered a short explanation using basic orbital mechanics.  We talked about several specific videos on his YouTube channel including the Sagan Darkness video, the Ambien Space Music videos and the Star Trek and Darth Vader videos.  I asked him what he liked best and he said it was systems engineering because he liked putting and seeing how everything works together.  Human factors came up and he made an interesting statement to the effect that if we require 21st century medical care on our space missions, the technology itself may be an impediment to the mission.  We talked about the multi-systems failure risk being the biggest risk in his opinion and the steps taken to mitigate this risk.  I also asked about crew failure risks including medical and psychological issues.  Andrew offered us interesting observations about crew risks and issues so don’t miss what he said.  As the show was drawing to a close, we talked about his introduction to spacecraft videos.

Please post your comments/questions on TSS blog. You can reach Andrew through his website or me.

Dr. Jason Cassibry, Tuesday, 10-9-12 October 10, 2012

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Dr. Jason Cassibry, Tuesday, 10-9-12

http://archived.thespaceshow.com/shows/1869-BWB-2012-10-09.mp3

Guest:  Dr. Jason Cassibry.  Topics:  A technical description and the potential of fusion propulsion.  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 welcomed Dr. Jason Cassibry to the program to guide us in our discussion of the potential for fusion propulsion.  At times, this was a very technical discussion.  To assist in following it, I have uploaded to the blog his published paper delivered at the AIAA Joint Propulsion Conference, “The Case and Development Path for Fusion Propulsion.”  In addition, below are the URLs for several articles on fusion propulsion that Dr. Cassibry shared with us: www.uah.edu/news/items/10-research/2501-slapshot-to-deep-space#.UDrKn-iPVuY;
www.popularmechanics.com/science/space/rockets/the-big-machine-that-could-lead-to-fusion-powered-spaceships-9450996; http://io9.com/5921673/nuclear-slapshots-could-propel-a-spacecraft-to-mars-in-just-weeks; www.centauri-dreams.org/?p=23442
and http://nextbigfuture.com/2012/10/zpinch-nuclear-fusion-pulse-space.html.   Dr. Cassibry started out by providing us with a working definition of fusion propulsion.  We talked about nuclear propulsion as well and the overall state of development for fusion energy.  I asked Dr. Cassibry if in their economic projections for fusion propulsion, they considered the political and policy impact on fossil fuel pricing and supply availability.  As you will hear, generally such factors are not included in their studies though he concurred with me that such policies can strongly skew the economics one way or the other.  Several calls came in on a wide ranging group of associated topics.  We talked about the main fusion fuel, lithium deuteride, magnetic nozzles, and the use of a nuclear fission reactor to start the fusion propulsion unit.  Z-Pinch technologies were defined and discussed.  As the segment drew to a close, I asked about funding sources for this research and we learned that most all of the funding is from public sources.

In our second segment, more listeners called in regarding insitu resource usage, nuclear propulsion to start the fusion unit, and the power consumed for all of this.  We talked about using fusion propulsion for a Mars mission and what it did for travel times.  Jason also put forth a suggested time line and path to follow to operation in perhaps 25 years, depending on funding.  More calls came in with fuel questions, vibration impact, G force acceleration, thrust, and more.  Another topic discussed was fusion propulsion for the launch vehicle.  We then compared some real mission travel times such as Cassini, Voyager, and New Horizons, asking what the transit times would have been like using fusion propulsion.  As we were ending the program, I asked about the students entering aerospace engineering at UAH, both the undergrad and graduate level, plus the gender mix of the students.  There appears to be strong demand by the students to study these fields at all levels.  In conclusion, Jason suggested that we could look for breakeven with fusion in about ten years, maybe less.

If you have comments/questions, please post them on The Space Show blog.  Dr. Cassibry’s faculty page at UAH is www.mae.uah.edu/faculty/cassibry.shtml.

 

Cassibry et al case for fusion 072812

Dr. Jeff Bell, Tuesday, 7-10-12 July 11, 2012

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Dr. Jeff Bell, Tuesday, 7-10-12

http://archived.thespaceshow.com/shows/1811-BWB-2012-07-10.mp3

Guest:  Dr. Jeff Bell.  Topics:  Vintage Jeff Bell.  We discussed a wide range of space history and current space projects from Dr. Bell’s perspective.  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 welcomed the return of Dr. Jeff Bell to The Space Show.  This 2.5 hour marathon discussion with Dr. Bell was classic Jeff Bell with space history, his analysis of current projects, new space ideas, NASA, Congress and well, you name it.  Dr. Bell had lots to say about many topics and for those of you familiar with Dr. Bell & his analysis, I promise you, you will not be disappointed with this discussion.  Those of you new to Dr. Bell, hold onto your seat!  Jeff started off with the cold war space history, X-33, and DCX. In doing so, he offered up his critique of the classic space book by G. Harry Stine, “Halfway To Anywhere: Achieving America’s Destiny In Space.”  As to be expected, Dr. Bell provided a very hard hitting, factual, and critical analysis of these topics & the book.  We also talked about the new company in Florida, Project Speed, and air breathing engines for space vehicles.  Dr. Bell spent some time on this analysis including scramjets, ramjets and the National Aerospace Plane.  When asked to confirm that little progress was being made from his perspective re space vehicles & even aviation, he cited the current military games going on in Hawaii, referencing the planes being used by the Air Force, Navy, & other military services, all to illustrate by example the points he was making.  He put out the fire on nuclear propulsion based on economics & costs, & then in discussing human spaceflight (HSF), like so many others, he said the rational for it was difficult justify to Congress & the taxpayers.  A listener asked Jeff he was biased in his analysis.  Jeff said he was unbiased in his examination of the facts. This issue surfaced again later during our program.  We then talked about a Washington Post article saying that our science field was over populated by excessive PhDs that cannot find work in their discipline (www.washingtonpost.com/national/health-science/us-pushes-for-more-scientists-but-the-jobs-arent-there/2012/07/07/gJQAZJpQUW_story.html?hpid=z1).  This prompted listeners to reply and John made some excellent points about science PhDs that Jeff missed.

In our second segment, we started off with space visions, including the one from this program, followed by a discussion of the “Sputnik Panic” following theUSSR launch of Sputnik.  We both had much to say about this event & its aftermath. Returning to the HSF rational, Jeff said there were two main problems with it. First, the very high cost.  Second, the is no place to go that does not require massive technology & support to sustain life.  He spent some time elaborating on this & responding to listener comments.  Next up, Planetary Resources, asteroid mining, space telescopes, & Earth imaging.  Dr. Bell took no prisoners in sharing his analysis with us.  He did talk about several serious projects including the B612 project & Pan Starrs.  As the program was ending, Dr. Bell had many positive things to say about the recently completed SpaceX Dragon & Falcon 9 flight, & the pork as he called it, SLS.  Dr. Bell was very strong & clear in his support for SpaceX and their accomplishments.

Please post your comments/questions on The Space Show blog URL above.