Comments by "Martinit0" (@Martinit0) on "Scott Manley" channel.

  1. Scott, we really want you to save for that Mars trip
    1
  2. Christophe Gabriëls  Hayabusa2 main contractor is NEC
    1
  3. Meanwhile New Zealand's Rocket Lab managed to reach orbit on January 21, 2018: https://youtu.be/eg5234BOED8
    1
  4. Who knows, maybe Scott can license his control code, LOL
    1
  5. Can we also appreciate the fact that SpaceX was so crazy to do the stack operation in night time?
    1
  6. The answer is "everywhere inside the bell and combustion chamber". Since the exhaust chamber and nozzle are open on one end none of the gas pushes that way against the construction, hence the rocket goes the other way.
    1
  7. Thrust is a force whereas exhaust is the material that comes out at the end - two different things. My opinion: when you call the fuel "exhaust" is a matter of semantics. You could define exhaust as "when it passes the aft end of the nozzle bell". It's probably safe to say that at that point the fuel won't create any more thrust. Whereas when the fuel exits the combustion chamber it can still generate a bit of thrust when their molecules collide with the nozzle walls.
    1
  8. In this case, make sure to not wear a red shirt
    1
  9. Yeah, that's probably why they put the kitchen satellites at the butt of the rocket
    1
  10. 230 g ! That's like running into a concrete wall
    1
  11. Germans and Russians don't count.
    1
  12. In fact, this is the new booster block 6, which upon water landing turns into a submarine and then autonomously sails to SpaceX facilities at Port of L.A. Now you know why it needs fins.
    1
  13. 4:34 Scott's DJ self comes out LOL
    1
  14. 1:05 The Crew stage! So we are going! Scott leaked it
    1
  15. ton is a unit for mass though ;-)
    1
  16. Well, now you know why entering the atmosphere is so challenging and why Russians never had a successful landing on Mars
    1
  17. SpaceX is working on it. If they can refuel a Starship in earth orbit before departing for deep space that should speed up things considerably.
    1
  18. According to Wikipedia the 2017 vacuum version of Raptor has an Isp of 375s, so still much less than LH2/LOX RL10 at 460s
    1
  19. You misunderstood. He's changing his name in 2025, probably to Scott Colombo.
    1
  20. What's the typical percentage of mass flow that is lost through the exhaust of gas generator types?
    1
  21.  @Xinnie_The_Flu  It seems like it's more extreme than hot dry sand on the beach, but maybe only by a factor of 2. Maybe more close if the sand was black?
    1
  22.  @scottmanley  I am now imagining that Airbus and likely also Thales employ somebody specializing in proper wrinkling of space mylar sheets.
    1
  23. No, but they could launch a huge remotely operated vacuum cleaner.
    1
  24.  @masi416  No
    1
  25. It's the rocket equivalent of a shiny PowerPoint presentation
    1
  26.  @bentemple6043  Kepler: Just a flesh wound
    1
  27.  @Urgelt  Agree, inexpensively, but work it must. I suppose we'll hear the real reason in Elon's next presentation.
    1
  28. Yes https://en.wikipedia.org/wiki/Shackleton_(crater)
    1
  29. Next in series: Crazy Things You Can Do With Asteroids
    1
  30. Although in this particular case they had to step waaaay back to get all the subjects into the frame.
    1
  31. Pah! Just ja flesh wound!
    1
  32. What about Orbcomm?
    1
  33. The point of being reflective is to not absorb the heat in the first place. What you don't absorb you don't have to re radiate.
    1
  34.  @Simple_But_Expensive  Is that what people call the iterative approach?
    1