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About Brotoro

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    Wants refueling hoses

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  1. SpaceX Discussion Thread

    Upon second count, I also get 83. I was staring at my Estes Saturn V model on the shelf while counting up all the engines/motors, and I forgot that the later Saturn V flights only used 4 separation motors on the the interstage between the S-IC/S-II instead of the 8 shown on my model.
  2. SpaceX Discussion Thread

    Hmm... I can only think of 87 rocket engines/motors on an Apollo Saturn V... so I think you are correct.
  3. SpaceX Discussion Thread

    They didn't do static tests of the Saturn V on the launch pad, but they did full-power tests of the Saturn V's S-IC first stage (five F-1 engines...7.5 million pounds of thrust) on the test stand. I see a video of a test firing that was over 40 seconds long. ...and I see a document that says they did a static test of S-IC number 2 for 126.3 seconds.
  4. No control rods? No problem!

    Possibly it can do startup, full-power burn, and shutdown without rotating the control drums...but then you need to rotate the control drums to lower the reactivity of the core for subsequent cool-down phases.
  5. Stupid_Chris is correct. The only way to destroy the Earth (and not just obliterate its ecosphere and such ideas) with CURRENT technology is to calculate and execute a series of gravitational assist encounters, staring with moving small asteroids that deflect bigger asteroids that deflect even bigger asteroids into orbits where there give resonance tugs on Mars to shift its orbit to the point where it can be made to encounter Earth and slowly shift its orbit down to Venus... But I don't think your end target needs to be sending Earth out to Jupiter... a head-on collision between Earth and Venus would leave nothing recognizable as Earth behind (whether it makes lots of chunks or a new super-Earth planet as a result). Start calculating the's going to be a long project.
  6. SpaceX Discussion Thread

    Time to pop that mystery payload into orbit.
  7. Astronaut John Young dies at 87

    R.I.P., John. A real astronaut's astronaut.
  8. SpaceX Discussion Thread

    Pretty, pretty unicorn.
  9. SpaceX Discussion Thread

    Unicorn sighting! Huzzah!
  10. SpaceX Discussion Thread

    Really, the parts that interested me most were the stage one callouts in the background...which announcer boy studiously ignored.
  11. SpaceX Discussion Thread

    SpaceX should paint all the new Falcons soot-gray with white pin stripes on the weld areas in all of the sooty areas from the start.
  12. SpaceX Discussion Thread

    Very nice. This was the first time I saw the launch exhaust trail hanging over Cape Canaveral from the booster camera view as it returned.
  13. Alpha Zero Chess AI

    I do a LOT of things unconsciously (if not most of the things I do), but I'm NOT just randomly punching buttons and rationalizing my choice afterwards. The parts of my brain that has decided what keys to hit to type this message IS me deciding what to do, even if it takes a while longer to filter up into the narrative of my consciousness. The unconscious parts of me have been trained by me and others to respond in certain ways under certain conditions...and if it's not achieving what I evaluate consciously to be my desired result, it gets retrained.
  14. "Since landing Viking 1 on Mars in 1975, NASA has successfully put 7 rovers on Mars." I quit reading there, since they obviously don't know what they are talking about.