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J.Random

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Everything posted by J.Random

  1. I love the game, but OMG I HATE HATE HATE HATE HATE THIS WATER TILING.
  2. Dang it, always mix them up. Okay then. Still, no idea what this "Russian Engine of the 200-series" is about.
  3. Which one would that be?Most of the RD-02XX are UDMH engines They were supposed to switch to RD-193 (RD-181). They've even bought two, but... Surprise! Engines are under sanctions and US is going to build their own engine (or at least has declared the intention to spend money on development). Seeing as Orbital goes against the flow of idiocy in US government, there is a good chance that they won't get any more engines. Or contracts.
  4. And I wouldn't like to think that Mr. Musk would start hiring military retirees like, you know, Boeing or Lockheed Martin (or, I suppose, as any other large military contractor) do.
  5. I thought that expansion and contraction goes on at the same time. Outer layer expands as hot gas (red giant) while at the same time innards condense into a white dwarf. Then gas cloud cools down and what remains is a dwarf.
  6. USAF as in "US Air Force"? There would be no NASA. Also, there probably would be no SpaceX.
  7. Huh. I wonder why they didn't go kaboom already. Shouldn't tidal forces mess up the whole "gravity vs radiation pressure" balance when stars get that close to each other?
  8. I can't contribute to this discussion (except that I think that mentioning "aether" in 21st century is a bit weird), but please do go on, guys. The discussion is very entertaining, in its own way. Kinda like watching a boxing match between Tyson and chihuahua.
  9. No it doesn't. If I remember school right, kinetic friction doesn't depend on object's velocity.
  10. For [any deity of choice]'s sake, it's a well known thought experiment, and yes, it states that there's some sort of a control system which speeds up the conveyor belt if needed, matching airplane's speed in the opposite direction. In terms of control theory, it's a perfect negative feedback loop. It won't work against airplane because airplane doesn't push against the conveyor, it pushes against air which isn't controlled by the feedback. It will work against the car because any torque the car applies will speed up its wheels -> conveyor goes faster -> car stays on the spot. And if we're talking about zero internal friction, both for the car and conveyor, and perfect wheel grip on conveyor belt - there's no need in any control system. Any torque that engine applies will speed up the wheels and conveyor anyway - and the car will STILL stay at the same spot. End of story.
  11. The conveyor spins back to match the speed of anything on it, trying to keep it at the same spot. In case of a car, conveyor doesn't have to do anything, it just has to spin freely, yes. In case of an airplane, conveyor actively tries to stop the airplane and fails.
  12. And yet the conveyor cannot push it back (well, forward). Essentially, it acts as a frictionless surface. The car will not move.
  13. Nope. This power will go into spinning wheels even faster, which doesn't mean that the car will move.
  14. Which is exactly why the car will stay at the same spot, spinning its wheels with infinite speed. Which is also why airplane _will_ move: the air will push it with the equal force airplane applies to it. Seriously, guys, why is this discussion still going? It should have ended on page 1.
  15. NASA's riding the wave (I'm not saying it's a bad thing).
  16. OP, you've been watching "(A Town Called) Eureka" lately, haven't you?
  17. I'm sure that "PS: I ate all the snacks" on some sticker somewhere existed way before HM has got the IVA. Not sure if it was stock or some mod.
  18. Should I also check for "asbestos-free" sticker?
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