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Technology: Astronomy Domine

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    • CommentAuthorAsterix
    • CommentTimeMar 3rd 2021
     
    Posted By: BigOilRep* Obviously twice that in the USA, as that place loves paying more for it's medicine, presumably in the belief that the more they pay the more effective it is.


    Showed my Medicare card; no money changed hands.
  2.  
    • CommentAuthorAsterix
    • CommentTimeMar 11th 2021
     
    Speaking of old antennae, how's the cleanup at Arecibo going?
  4.  
    I don't understand why they did that whole cable support thing anyway. A simple tower, perhaps guy-wired or perhaps not, poking up from the centre of the dish, with maybe some adjustable tilt to aid aiming, would seem to be a much simpler engineering and architectural solution.
    • CommentAuthorAsterix
    • CommentTimeMar 11th 2021
     
    The big thing with the old cable-support system is that the degree of steering possible was very large.
  6.  
    I just noticed that Isaac Arthur has his Shkadov Thruster working backwards. The net acceleration will be away from the masking statite. Wikipedia makes the same error btw.
    https://www.youtube.com/watch?v=_bgW_-GQVUY&t=15m39s

    https://en.wikipedia.org/wiki/Stellar_engine
    •  
      CommentAuthorAngus
    • CommentTimeMar 16th 2021
     
    •  
      CommentAuthoraber0der
    • CommentTimeMar 16th 2021
     
    Race bait? No click.
    •  
      CommentAuthorAngus
    • CommentTimeMar 16th 2021
     
    Abstract of paper in Astrophys. Journ. Clicks here.
    •  
      CommentAuthoraber0der
    • CommentTimeMar 16th 2021
     
    I know, but when resistance meets futility...
    •  
      CommentAuthorAngus
    • CommentTimeMar 16th 2021
     
    Do tell us more.
    •  
      CommentAuthoraber0der
    • CommentTimeMar 16th 2021
     
    No?
    •  
      CommentAuthorTrim
    • CommentTimeMar 18th 2021
     
    Pretty please.
    •  
      CommentAuthorAngus
    • CommentTimeMar 24th 2021
     
  15.  
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      CommentAuthorAngus
    • CommentTimeMar 30th 2021
     
    NASA! It's a bit embarrassing isn't it.
    •  
      CommentAuthoroak
    • CommentTimeMar 30th 2021
     
    You guys probably haven't heard -- they had to move the Alpha Centauri system farther out. It's now 15 light years away.
  18.  
    That's strange.
  19.  
    I sent them a comment. I asked if they were insane, except I used other words.
  20.  
    https://phys.org/news/2021-03-composition-percent-universe.html

    No more dark energy? At least that embarrassing 10140 factor would evaporate.

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