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David Crisp, Monday, 11-23-15 November 24, 2015

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David Crisp, Monday, 11-23-15

http://archived.thespaceshow.com/shows/2591-BWB-2015-11-23.mp3

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Guest: Dr. David Crisp. Topics: NASA Orbiting Carbon Observatory (OCO-2), Earth’s CO2 environment 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 Dr. David Crisp to the show to discuss the NASA Orbiting Carbon Observatory-2(OCO-2) satellite. During the first segment of our 94 minute program, Dr. Crisp started out by presenting a short overview of the OCO satellites, the first two of which did not make it to orbit due to fairing failure after their Vandenberg launch. For the third attempt, NASA switched rockets to the Delta 2 and the satellite made it to orbit without a problem. Dr. Crisp then explained how OCO-2 works, how it detects and measures CO2 in the atmosphere from the ground up. He explained the color intensity and why the information is so accurate. I asked him to compare OCO-2 data with climate models. Here, Dr. Crisp stressed the fact that he was not a climate scientist or policy maker. That said, he did compare and contrast OCO-2 data with climate models to the degree reasonable comparisons can be made. We talked about natural sources of CO2 on earth, both land and water (ocean, rivers, and lakes), as compared to manmade sources of CO2. Dr. Crisp explained the emitting and absorption capabilities from the natural CO2 sources, photosynthesis with plants, and the fact that manmade CO2 is only emitted, not absorbed. This CO2 can stay in the atmosphere for a thousand years or so. He talked about the total parts per million of CO2 in the atmosphere, how it has gone down and now is going up over the years and the amount of human created CO2 in the atmosphere and how that has increased over the years. Listeners asked about methane but OCO-2 was not designed to detect methane. He was also asked about water vapor. Dr. Crisp explained that water vapor in the atmosphere was detected and measured by other satellites, particularly weather satellites so it was not part of this genre of satellites. Jack emailed in a question to point out that a pause was going on for the past 19 years or so and the planet was not cooling despite human CO2 increases. Dr. Crisp offered an explanation for the pause so don’t miss it.   Jane from Seattle brought up the fact that warming and cooling on Earth has been going on since the beginning of time, without human produced C02. She asked how this could be given the conclusions many make regarding the increase in human produced CO2 levels for today causing global warming. Don’t miss how Dr. Crisp responded to Jane. Dr. Crisp also talked about solar warming and cooling cycles and said we are currently in a solar cooling cycle. Randy emailed in a question about the draught in California and its relationship to CO2 increases.

In the second segment, Becky in Las Vegas sent in a note asking about the climate and atmosphere on Venus and Mars given our guest has studied both planets. She was looking for a common link with Earth or maybe a common trend. Dr. Crisp had much to say about both Venus and Mars. Later in the discussion, I asked if humans were on Venus with advanced technology, could they have intervened in the global warming process and mitigated the impact of it. He said he doubted it, explained why and then the same question was asked about Mars though the situation on Mars was and is different than on Venus. For the most part, Venus was too close to the sun to do anything about it and Mars was too far to do anything about the Martian problems. This is why Earth is in the Goldilocks zone and why we search for exoplanets in this zone. Later, Dr. Crisp talked about today having the highest CO2 levels ever and the growing Earth population which is around 7.2 billion people having nearly doubled over the last 45-50 years. This led us to a discussion about energy, including coal, natural gas & nuclear power. He had some surprising comments about China and coal, don’t miss them. We also talked about India and its use of coal, then Dr. Crisp talk about the need to be able to store power, use solar and wind power, and to enlarge the grid to take wind or solar from areas where it was strong to be able to ship to areas that needed it. He also talked about the need to improve energy storage. Near the end of the program, I asked about any surprises discovered from the OCO-2 data. We then talked about how long OCO-2 would last and here, we talked about the design as a demo satellite without redundant or backup systems. A listener asked if cubesats could do such an OCO-2 type mission. Don’t miss his answer but the simple one was no because the technology for doing this requires hardware that is considerably larger than could be used by a cubesat. Before the show ended, we talked about the NASA Earth Science Budget, the cost per taxpayer, and our ability to freely download OCO-2 data off their website. He then identified the largest user and downloader of the data. I bet you will be surprised by what he said. NASA was the second largest downloader of the data.

Please post your comments/questions on TSS blog. You can reach Dr. Crisp through me or through a JPL search for his name and information.

Dr. John Jurist, Sunday, 10-25-15 October 24, 2015

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Dr. John Jurist, Sunday, 10-25-15

http://archived.thespaceshow.com/shows/2577-BWB-2015-10-25.mp3

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Guest: Dr. John Jurist.  Topics:  The Space Program of the 1960s.  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. John Jurist to present his popular talk, “The Space Program of the 1960s.”  I have uploaded to The Space Show blog his Power Point presentation that he uses with this talk  so be sure to visit it.  He refers to many of the Power Point slides during this two hour Space Show program, especially slides featuring historical pictures.  The specific URL for this program on our blog is https://thespaceshow.wordpress.com/2015/10/24/dr-john-jurist-sunday-10-25-15.  During the first segment of our two hour program, Dr. Jurist discussed the origins of our space program going back to the 1920s with Robert Goddard and his rockets, and even earlier to Tsiolkovsky with the rocket equation.  John then advanced the story through WW2, V2 rockets, the development of the hydrogen bomb, the creation of the NSF, then on to Sputnik and the eventual launch the first American satellite.  During this overview, Dr. Jurist received many listener questions as well as questions from me so this is quite the comprehensive discussion.  John also pointed out the interest in space from the public which drove media coverage.  He referenced Walt Disney, von Braun’s popular work, sci fi films, & Colliers Magazine articles.  He mentioned several stand out events such as JFK’s Rice University speech, the Apollo 1 fire and then Apollo 7 which contained thousands of human spaceflight safety advancements and improvements and the testing of many of those advancements with the Apollo 7 flight.  A listener asked about nuclear propulsion and NERVA.  This resulted in a phone call from Dr. Dewar who continued the discussion with nuclear propulsion but advanced it to include the development cryogenic systems to support the H bomb and then these systems making their way to NASA.  John and Jim had much to say about the H bomb and space development connections so don’t miss this discussion.  By the way, Dr. Dewar is returning to The Space Show on Dec. 6.  John talked about the biomedical advancements in aviation that contributed to safer HSF. Here, he mentioned the work by Dr. John Paul Stapp and others, especially out of Holloman AFB in New Mexico.  Don’t miss this discussion or the relevant PPT slides.

In the second segment, John from Ft. Worth called to continue the discussion about the H-bomb and space connections, huge airplanes to deliver the large bombs and the later development of compact warheads which lead to the use of smaller missiles.  They also compared these advancements to the Soviet Union program of the day as the soviets used a different system for the bomb which resulted in it being smaller than the initial American weapons.  The two John’s continued talking about cryogenic development.  Dr. Jurist then advanced the discussion to the economic benefits of space development and how space has advanced the standard of living for everyone on the planet.  Some side discussion topics including space and former V.P. Spiro Agnew, space shuttles, Skylab, and bone metabolism resulting in the DEXA scan.  Dr. Doug called in to talk about baby boomers and the creation of graduate students in STEM and non-STEM fields.  He also asked if a DEXA scan could be made small enough to go to the ISS for real time measurements.  Dr. Jurist offered an easier way for those real time studies.  Several listeners asked Dr. Jurist if we could recreate this type of program today.  John said he was doubtful, especially given the IRB would likely have a total fit with self-experimentation.  He spent more time on the Apollo 1 fire, then he got questions about the opportunity cost of space development asking if we would not have had the same advancements if not more had we spent the money on programs other than space.  Don’t miss how John responded to this question.  Another listener pointed out emergency and trauma medical advancements as a result of recent wars and asked our guest if those advancements would have come about had it not been for the recent wars that helped develop these new treatment protocols.  Again, don’t miss how Dr. Jurist responded to this question.  As our program was ending, Dr. Jurist offered concluding comments that you will certainly want to hear and consider.

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

                  1960s Space Program