Відео

The size of nano aluminium particles (approaching 2 microns) is the most critical parameter for generating voluminous gas production. This is because an extremely large surface area is offered which effectively obviates oxidation and provides instant and continuous self-perpetuating gas production without adding an external heat source to the water (after all, a lot of heat is self generated by the reaction). Again, an gallium alloy can also obviate oxidation (the gallium is fully recoverable and recyclable).

Thanks again to The Martlets Society for the invitation to give this talk. I greatly enjoyed the discussion we had afterwards! I’ll list here some of the links referenced in the talk: Philip Lubin’s paper “A Roadmap to Interstellar Flight” is available here: www.nasa.gov/sites/default/files/atoms/files/roadmap_to_interstellar_flight_tagged.pdf arxiv.org/abs/1604.01356 The documentary “The Farthest” is available in the US here: www.pbs.org/the-farthest/home/ (alas, no longer appears available on Netflix) Jim Bell’s book about the Voyagers is here: www.amazon.com/The-Interstellar-Age-Jim-Bell-audiobook/dp/B00SXCFB2E And Alan Stern and David Grinspoon’s book on New Horizon’s mission to Pluto is: www.amazon.com/Chasing-New-Horizons-audiobook/dp/B07BC9N3RM The best resource to keep abreast of all interstellar travel developments is Centauri Dreams: www.centauri-dreams.org/ The “No Buck, No Buck Rogers” quote is from here: ua-cam.com/video/a7rGA0Zv8R4/v-deo.html Three alternative approaches to interstellar flight: 1) The PROCSIMA concept from Chris Limbach at Texas A&M University: www.nasa.gov/directorates/spacetech/niac/2018_Phase_I_Phase_II/PROCSIMA/ today.tamu.edu/2018/05/11/combining-laser-and-particle-beams-for-interstellar-travel/ 2) The Q-Drive that would interact with the interplanetary or interstellar medium to create thrust: tauzero.aero/a-reaction-drive/ 3) Work being done on antimatter propulsion (under NASA NIAC funding) by Hbar Technologies (a spinoff from Fermilab): www.nasa.gov/directorates/spacetech/niac/2020_Phase_I_Phase_II/Deceleration_of_Interstellar_Spacecraft_Utilizing_Antimatter/ The paper from Atchison and Peck that discusses relative role and scaling of photon pressure, Poynting-Robertson drag, Lorentz force, etc., is here: Atchison, Justin A., and Mason A. Peck. "Length scaling in spacecraft dynamics." Journal of guidance, control, and dynamics 34, no. 1 (2011): 231-246. doi.org/10.2514/1.49383 …and popularization of this work here: spectrum.ieee.org/aerospace/satellites/exploring-space-with-chipsized-satellites Finally, here is the amazing “Powers of Ten” short film from Philip Morrison and the Eames: ua-cam.com/video/0fKBhvDjuy0/v-deo.html Also, one of our graduate students at McGill pointed out I somewhat flubbed the scaled model of our galaxy at the very end of the discussion. I’ll correct that mistake here: If our solar system (defined by Neptune’s orbit) is reduced to the size of a quarter (25¢ coin), then the nearest star (Proxima Centauri) would be-at that scale-about 280 ft (85 m) away, almost a football field! But if our galaxy were reduced to the size of a quarter, then the nearest galaxy at this scale is just 18 inch (45 cm) away! Amazingly close. The point I was trying to make is as follows: Our civilization is just now able to cross the solar system in about a decade (e.g., the time it took New Horizons to reach Pluto). Imagine a tiny microbe that took a decade to crawl across a 25¢ coin. If, upon completing that journey, the microbe says, “I’m now going to craw to the next nearest coin, which is an entire football field away,” you might conclude they’re crazy. And perhaps they (and we interstellar enthusiasts) are. However, imagine a microbe that has just taken a decade to crawl across a galaxy the size of a 25¢ coin (perhaps think of our intrepid Captain Janeway and her crew). If she now declares, “Next up, I’m going to the next galaxy…it’s just 18 inches away!” it does not sound all that crazy. This is the point that science fiction nearly always gets wrong: If you had a propulsion technology to cross a galaxy, then going to the next nearest galaxy would almost certainly be feasible.

Great job

Great

Great job!