Galt's Gulch

Beautiful solar plasma filament twists in a birkeland current.

Posted by Dobrien 6 years, 3 months ago to Science
14 comments | Share | Flag

If you choose to view this short clip note the comparison to the size of earth.
SOURCE URL: https://youtu.be/tqNsjkD65no

Add Comment

FORMATTING HELP

All Comments Hide marked as read Mark all as read

    -
  • Posted by Herb7734 6 years, 3 months ago
    The awesome beauty of the universe.
    When we consider our tininess the beauty can often become frightening when we think about how we, as mortal creatures have no way to control what goes on in the universe, or for that matter, our speck of a planet. But hold on-- give us another 100 years and watch out!
    Reply | Mark as read | Best of... | Permalink  
  • Posted by $ Olduglycarl 6 years, 3 months ago
    Wonder which planet gets in the way of that one?

    Took some time to do some research tonight, I ended up finding some stuff on how our milkyway orbits Andromeda, (It's about the same mass as our milkyway)...of course many claim we will collide. That's not to say that something in our extended arms might mingle but I'd heard that the milkyway orbits another star or galaxy and that our local group orbits something else together.

    Long story short...I found at least, part of that equation.

    I also gathered some figures on our orbital speed around the sun, the difference in our distance from winter and summer solstice. now all I have to find, and it may not exist, is size of the "almost circular" orbit we will be in 40K or so years from now. As you might remember, I suggested that the number of days in our complete orbit at that time just might be 360 and not the 365.56...or 365days and 6hours we have now.
    Reply | Mark as read | Best of... | Permalink  
    -
  • Posted by $ allosaur 6 years, 3 months ago
    That was a pretty sight.
    But what me dino really found incredible is the size of the sun compared to the earth.
    It's been a long while since I thought about that.
    Reply | Mark as read | Best of... | Permalink  
      -
    • Posted by Dobrien 6 years, 3 months ago
      Yes, having a little fun with the calculator. Our sun is huge but the star VY Canis Majoris (big dog) has a diameter of 1,228,091,982 miles.
      I have computed that if Dino boarded a plane to fly around that dog star and the plane flew at 500 miles an hour you would complete the flight in 280 years or so.
      Relative to the sun 1421 suns would fit into Canis Majoris.
      Our sun is 864,000 miles diameter and at 500 mph
      It would take 72 days to circle it.
      It makes even the larges dinosaur very very tiny.
      Reply | Mark as read | Parent | Best of... | Permalink  
        -
      • Posted by $ allosaur 6 years, 3 months ago
        The universe is amazing.
        In Star Wars they can zip across the galaxy. At the end of The Empire Strikes Back, Luc Skywalker was being fitted with a new bionic hand with a view of his entire galaxy from far, far away.
        Shall such miraculous travel forever be just the stuff of such "space opera" science fiction.
        https://en.wikipedia.org/wiki/Space_o...
        Reply | Mark as read | Parent | Best of... | Permalink  
        • Posted by Dobrien 6 years, 3 months ago
          Yes I recently have started reading Robt Heinlein
          Stranger in a strange land. After listening to the Red Planet on CD very excellent science fiction.
          Recommended to me by Freedomforall.
          Reply | Mark as read | Parent | Best of... | Permalink  

FORMATTING HELP

  • Comment hidden. Undo