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Kryten

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Everything posted by Kryten

  1. Here's the original study. That's not how screens work. They emit at most four and usually three actual wavelengths.
  2. The whole USAF had been forcibly integrated just after WWII, and there were plenty of senior black test pilots by this time. One was in fact entered into the USAF's own astronaut corps for the MOL program, despite the USAF having a much smaller number of astronauts overall. Hell, even the soviets had a black man in space before the US did.
  3. Yes, how silly of me. I'd have to be some kind of radical pinko to suggest there was massive institutional sexism in the ....ing 60s.
  4. I'm not sure why anybody would bother trying to look for any reason beyond blatant sexism. We're talking about the same organisation that had no black astronauts until the mid-80s, it's not like they're above that kind of thing.
  5. This is an uncrewed supply vessel.
  6. In the past couple of days russian ground controllers managed to contact the vehicle, retrieve telemetry, and reconfigure the system usually used to supply the ISS to feed the thrusters; however, they failed to actually stop the spin. Looks like that was the last chance to get some control, but at least it should help the failure investigation.
  7. The assumptions about orbits inherent in the question simply don't apply near black holes; Kepler's laws are an approximation, and in this situation the approximation breaks down.
  8. For who? As far as we can tell they haven't sold any tourist tickets or made real progress with commercial space stations, NASA is the only game in town.
  9. NASA wants parachute landings, and they're the only existing customer for Dragon. Propulsive is off the table until somebody wants it.
  10. 'What is red' in itself doesn't get you anywhere terribly interesting, because red is a primary colour and so has pretty consistent effects on most neurologically. If you shift it slightly you can get a much more interesting question-what is yellow? The vast majority of people on this planet perceive yellow as a mixture of red and green signals-they cannot distinguish a truly yellow monochromatic source from a mixture of red and green light. However, a few people have alleles for a fourth colour receptor, sensitive to the yellow portion of the spectrum-and a small proportion of these people (two known so far) have been able to integrate it into their visual system. These people can distinguish monochromatic yellow from the mixture everybody else sees-so what are they seeing, and what are we? Can the rest of us even be said to be able to see yellow?
  11. As far as we can tell, the interpretation of colour within the brain is in fact very similar between most people, so the experience is likely to be broadly the same.
  12. Base of the capsule, pusher. There's a test video I'd link, but I can't find it now that they've redesigned their site. EDIT: Found it;
  13. Lower velocity, and lower heating so less need to get rid of it so rapidly.
  14. These flights are straight up and down, Mercury-Redstone ended up nearly 500km downrange. Acceleration should be much less.
  15. Well, so far the test vehicle was destroyed on ascent by aerodynamic forces on it's first flight higher than a short hop, and now the first actual one crashed on it's first official flight. In terms of flight success the record is much worse than SS1 or even SS2.
  16. There were a couple FAA notifications for short altitude rocket activity at their test sight in the past month. I suspect there were short hops before this.
  17. There's maybe a ton of propellant left in that thing. If it freezes, significant quantities could survive re-entry. Not something you want anywhere near inhabited areas.
  18. Way too early to tell. That timeframe is about fifty orbits, it probably covers the entire earth (within 52 degrees north or south).
  19. The progress is predicted to re-enter in the 5-7th May timeframe.
  20. KBKhA, the producers of the third stage engine, are saying that the stage was burning too long due to a control system issue. As Progress separation is done on a simple timer, this would lead to it attempting to separate from a a still-burning stage and being shunted about by it.
  21. At this point the vehicle has likely either run out of power or is it about to do so.
  22. Don't have full details yet, but last pass was 'fruitless'. So far it's turning out like Phobos-Grunt in miniature.
  23. There's not likely to be much debris at that height; anything would decay within a couple of weeks at most.
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