Space

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Replies

  • cee134
    cee134 Posts: 33,711 Member
    YvetteDem wrote: »
    i see tv shows and spaceships go fast. I not know how they go fast but i know smart men have, uh how you say, theories on Alcubierre warp drives which is a speculative idea based on a solution of Einstein's field equations in general relativity as proposed by theoretical physicist Miguel Alcubierre, by which a spacecraft could achieve apparent faster-than-light travel if a configurable energy-density field lower than that of vacuum could be created. No?

    The problem with warp drives are they are too slow for viable travel through space. I like Star Wars Method of warping space to shorten the distance between 2 points, which is what the Star Wars hyperspace is suppose to be. But the best is Dune's "folding" space to achieve instantaneous translation (e.g. the Dune universe's Holtzman effect).
  • Timshel_
    Timshel_ Posts: 22,834 Member
    YvetteDem wrote: »
    ...Alcubierre warp drives which is a speculative idea based on a solution of Einstein's field equations in general relativity as proposed by theoretical physicist Miguel Alcubierre, by which a spacecraft could achieve apparent faster-than-light travel if a configurable energy-density field lower than that of vacuum could be created.

    All the warp talk, warp bubbles and such for travel are based on general relativity. That is, space-time-mass-matter-energy-gravity are all interrelated. The relativity is that all points can move and balance. Until recently, efforts for travel have always been tied to modifying velocity(energy) to warp relativity, but we know that does not work alone in a vacuum. What shows promise are things like Quantum Entanglement Communication and other faster than light work.

    FWIW - Einstein was f'in amazing. Again, look at the movie Thor, which ties to the Einstein-Rosen paper, and using FTL and Quantum theory for travel (the bridge).

    I think these break throughs are fairly close. Like within 100 years.

    If we don't self-destruct in our own entitlements and personal agendas.

  • NorthCascades
    NorthCascades Posts: 10,968 Member
    cee134 wrote: »
    The Earth’s revolution time increases .0001 seconds annually.

    Love makes the world go round. With the obesity epidemic, there's more to love every year.
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  • NorthCascades
    NorthCascades Posts: 10,968 Member
    thesunmoonandstars wrote: »
    I think it's interesting that the moon has a stronger influence on the tides even though the sun is larger. It's also interesting that people studying this stuff think there could be a correlation between tidal distress, the moon and triggering of earthquakes. It's not a matter of if an earthquake strikes where I live, it's just a matter of when living on the West Coast. What if space could help predict when Earthquakes were going to happen.

    http://hyperphysics.phy-astr.gsu.edu/hbase/tide.html

    For the record, this is why you want to bike up big hills at high tide. Gravitational assist from the moon.
  • cee134
    cee134 Posts: 33,711 Member
    NASA conducts second round of fire experiments in space

    Sample 9 is a piece of plexiglass used to make spacecraft windows.
    https://www.youtube.com/watch?v=EAvXxbeLwbU
  • cee134
    cee134 Posts: 33,711 Member
    Here's what the incredible leap in weather imaging is going to look like with the new GOES-R satellite

    GOES-R satellite image comparison


    xh9lpniufeat.jpg
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    thesunmoonandstars wrote: »
    NorthCascades wrote: »
    thesunmoonandstars wrote: »
    I think it's interesting that the moon has a stronger influence on the tides even though the sun is larger. It's also interesting that people studying this stuff think there could be a correlation between tidal distress, the moon and triggering of earthquakes. It's not a matter of if an earthquake strikes where I live, it's just a matter of when living on the West Coast. What if space could help predict when Earthquakes were going to happen.

    http://hyperphysics.phy-astr.gsu.edu/hbase/tide.html

    For the record, this is why you want to bike up big hills at high tide. Gravitational assist from the moon.

    What kind of hills we talkin and how much assist? It they are ant hills, count me in. If you're talking about biking hills like Hawks Hill in the Marin Headlands, then I would need more than a gravitational assist from the moon and tides on a bike. Paging a spaceship.

    https://www.relive.cc/view/754255304
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    For @cee134

    http://cliffmass.blogspot.com/2016/11/a-revolutionary-new-us-weather.html
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  • cee134
    cee134 Posts: 33,711 Member
    I actually think that's that airplane the simulates space.
    https://www.youtube.com/watch?v=w4sZ3qe6PiI
  • cee134
    cee134 Posts: 33,711 Member
    You can see another galaxy with the naked eye: the Andromeda Galaxy, which is 2.2 million light years away.

    ngm0p9k180ig.png
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  • Timshel_
    Timshel_ Posts: 22,834 Member
    Couple neat satellite facts I was reading about this weekend.

    First, they just did the first 500+ kilometers deployment of a satellite for orbit this weekend with another scheduled today or tomorrow. This increases the orbital life span from around 9 months to about two years. That is a huge ROI. Just something cool I learned when I was checking out CubeSats, which I think is the next wave of appliance style satellites, ala drone style deployment, low costs for launch and operation, with very narrow specific missions.
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  • NorthCascades
    NorthCascades Posts: 10,968 Member
    Has anyone in here read Coming of Age in the Milky Way?
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  • NorthCascades
    NorthCascades Posts: 10,968 Member
    1200 mm lens?
  • RunHardBeStrong
    RunHardBeStrong Posts: 33,069 Member
    KeithMarcus wrote: »
    Does anyone get views like this anymore?

    JweLNq6.jpg

    To be honest, the only time I had a view like that was last year. I rented a cabin up in the mountains and every night, I sat in the hot tub star gazing. It was absolutely gorgeous. One particular night it started snowing. One of the best most tantalizing moments I have ever had. The sky was still amazingly clear and bright, with everything but my head submerged in the hot tub and cold snow flakes hitting my face.
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    Diablo Lake and Highway 20

    30482859224_7c762b87db_o_d.jpg
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    Skagit River and Highway 20

    18806683886_bf417ffddc_o_d.jpg

    SR 20 = The North Cascades Highway, FYI.
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    "Teanaway Confluence" is my name for the place because there isn't an official one. Just where North Fork Road and Middle Fork Road meet.

    31160819712_b94847f472_o_d.jpg
  • NorthCascades
    NorthCascades Posts: 10,968 Member
    Somewhere in the lower Teanaway, probably the same spot. I think I went out and shot this the night my new/current camera arrived. I was amazed, it did so much better than I expected.

    31160819792_0560731971_o_d.jpg
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  • NorthCascades
    NorthCascades Posts: 10,968 Member
    I can't believe I forgot about those last two for a couple years! The last one made me really happy.
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