Results 1 to 2 of 2
  1. #1
    Sagan's Avatar Carl Sagan
    Forum Addiction:

    Join Date
    Nov 2012
    Gender
    Male
    Location
    SOL System
    Posts
    5,381
    I'm feeling
    ContentContent
    Mentioned
    20 Post(s)

    Sakurajima Volcano with Lightning (incredable image!)





    Click for full size

    Explanation: Why does a volcanic eruption sometimes create lightning? Pictured above, the Sakurajima volcano in southern Japan was caught erupting in early January. Magma bubbles so hot they glow shoot away as liquid rock bursts through the Earth's surface from below. The above image is particularly notable, however, for the lightning bolts caught near the volcano's summit. Why lightning occurs even in common thunderstorms remains a topic of research, and the cause of volcanic lightning is even less clear. Surely, lightning bolts help quench areas of opposite but separated electric charges. One hypothesis holds that catapulting magma bubbles or volcanic ash are themselves electrically charged, and by their motion create these separated areas. Other volcanic lightning episodes may be facilitated by charge-inducing collisions in volcanic dust. Lightning is usually occurring somewhere on Earth, typically over 40 times each second.

    http://youtu.be/zSgiXGELjbc

    "A still more glorious dawn awaits
    Not a sunrise, but a galaxy rise
    A morning filled with 400 billion suns
    The rising of the milky way"

    "The sky calls to us
    If we do not destroy ourselves
    We will one day venture to the stars" -Carl Sagan

  2. #2
    tal's Avatar
    Forum Addiction:

    Join Date
    Mar 2013
    Gender
    Male
    Location
    UK
    Posts
    19
    Mentioned
    0 Post(s)
    Wow that's impressive! It's so unusual you could be forgiven for thinking it's Photoshopped.

Made with <3
Anxiety Space is not a replacement for a fully qualified doctor.