Notices
Results 1 to 4 of 4

Thread: The Sun and the solar system

  1. #1 The Sun and the solar system 
    Forum Sophomore
    Join Date
    Sep 2005
    Posts
    106
    1) Will the amount of hydrogen and helium in the sun increase or decrease over the next few million years?

    The answer in my book says they will decrease.......but that doesn't make sense to me! The most common type of nuclear fusion in the Sun is hydrogen fusion, so amount of hydrogen will certainly decrease, but shouldn't the amount of helium be INCREASING instead of decreasing? Or will the helium in fact also decrease in amount?

    2) Why and how do volcanic eruptions aid in the creation of an atmosphere?


    Reply With Quote  
     

  2.  
     

  3. #2  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Posts
    14,168
    1) I agree with you: the amount of hydrogen will certainly decrease because of conversion to helium, and to a minor degree because of ejection of material in coronal discharges. I cannot see any reason why the amount of helium should decrease. That makes absolutely no sense. Are you sure you are not misiniterpreting your textbook?

    2) Volcanoes emit gases of all sorts. Atmospheres are made up of gases.


    Reply With Quote  
     

  4. #3  
    Forum Senior silkworm's Avatar
    Join Date
    Nov 2005
    Location
    Kansas
    Posts
    337
    1) Doesn't it all intensify as the sun moves closer to being a red giant, so it uses more fuel on it's way to it? Anyway, I can see why they're saying we're on a positive slope.

    2) Going along with Ophiolite here, the entirity of atmospheres are gases. You have to realize that you are constantly in fluid, aka air. I feel that's an important thing for one to comprehend.
    Reply With Quote  
     

  5. #4  
    Forum Freshman
    Join Date
    Nov 2005
    Posts
    7
    yes as the sun gets further toward its red giant stage, it gets hotter and hotter, which will mean that human beings will at some stage definately have to leave earth, which will probably become more like venus, and then just a crisp. Mars is obviously the next planet humans will live on, but after that, who knows.. as the sun gets hotter and hotter we will have to move out, perhaps ganymede (which has water?) and then titan could become our new home.

    incidently the other interesting thing, is that saturns rings will eventually disapear, but neptunes satelite, triton is on colision corse with neptune and will some day be ripped apart by neptunes gravity, perhaps causing neptune to have a saturn-like ring system.
    neptuniana
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •