Want to become a rocket scientist?
For the next few days you can get the ebook “How to be a rocket scientist” for free, by an engineer who has been one. As Hoffstadt correctly notes,
We are still very far from having all of the answers and seeing all of the possible technologies that can help humans travel through the air and space, and to live beyond our planet Earth. There are important questions to ask, problems to solve, and things to build. We haven’t figured everything out yet and don’t know where the next ideas and accomplishments are going to come from. In other words … we need more rocket scientists! [emphasis in original]
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
For the next few days you can get the ebook “How to be a rocket scientist” for free, by an engineer who has been one. As Hoffstadt correctly notes,
We are still very far from having all of the answers and seeing all of the possible technologies that can help humans travel through the air and space, and to live beyond our planet Earth. There are important questions to ask, problems to solve, and things to build. We haven’t figured everything out yet and don’t know where the next ideas and accomplishments are going to come from. In other words … we need more rocket scientists! [emphasis in original]
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Hi this is OT to the post I suppose but the question below is I think right in your wheelhouse, and you are my go-to guy on all things space. I was curious to see what you could add to the answers given. Thank you for all your great reporting here and on the Batchelor show!
http://space.stackexchange.com/questions/6281/why-not-build-saturn-vs-again
I’m going to go with the answer that we want to move forward, not backward. We have learned several lessons since then, and these should be incorporated into our rockets and spacecraft. Problems that existed with the Saturn, the Shuttle, and with Apollo should be corrected. They worked, but the had their problems.
Saturn was a quickly developed rocket that was designed before we knew much about the pitfalls that come with sticking incredibly powerful, high temperature, high pressure, lightweight engines (each of which burned more than a ton of fuel and oxidizer per second, the equivalent of the output of 36 one-gigawatt power plants — per engine!), and finicky turbopumps on lightweight structures right next to the fuel tank. (You have my permission to be impressed.)
Typically, we want to design hardware that is appropriate for the mission at hand. For Apollo and the Saturn V, that mission was going to the moon and returning safely. For the Space Shuttle, that mission was to explore man and material in micro-gravity in low Earth orbit (LEO).
For SLS, we still don’t know, so SLS may not be the best design for us. The general idea is for SLS to take Orion beyond LEO, possibly to a high orbit around the moon (at one time a return to the moon’s surface was the mission), or possibly to a “local” asteroid. If only we knew.
Even if the mission were to go back to the moon, we would want to do more than just walk around for a while, we would want to move forward, such as build some serious infrastructure, like a permanent base or even a colony, and that could require more than a Saturn can lift (or an SLS, for that matter).
I would argue that a better design than the SLS would cost less so that we could launch it at least once a year, and preferably several times each year. More missions means more exploration, which is NASA’s purpose, and why we had intended for the Space Shuttle to fly a dozen or two flights each year.
I understand your frustration about the direction that NASA has been directed to take, but going back to old 1960s technology is not the best solution.
My recommendation is for you to become a rocket scientist and help take us into the space age.