Science lesson

Discussion in 'General Chat' started by docv, Dec 12, 2009.

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  1. docv

    docv Well-Known Member
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    Aug 30, 2009
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    moble auto paint tech ( PTU )
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    Thought this is kinda cool, your science lesson for the week....

    [ame]http://www.youtube.com/watch?v=-d9A2oq1N38&feature=player_embedded[/ame]
     
  2. Norm03s

    Norm03s New Member

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    What are contrails that dissipate into cloud cover?
     
  3. lotsie

    lotsie Club Coordinator

    May 5, 2009
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    Cool:cornut:

    Mark
     
  4. Dr Obnxs

    Dr Obnxs New Member

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    Contrails are

    water vapor that condense based on local atmospheric conditions. They are combustion by-products.

    Matt
     
  5. mini_racer

    mini_racer Well-Known Member

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    Ok, that was fun......
     
  6. Ofioliti

    Ofioliti New Member

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    Yeah! Science is fun! :D
     
  7. Justa Jim

    Justa Jim Well-Known Member
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    The sonic boom you hear as the plane passes over actually follows it along the ground as long as the plane is at Mach 1. This can cause damage to objects on the ground and was a factor with the Concorde. I believe that it was no allowed to go super sonic while in U. S. air space.

    Jim
     
  8. Deviant

    Deviant Banned

    Apr 23, 2009
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    That was the fear however unless the plane is traveling a few hundred feet above the ground a sonic boom isn't likely to cause any major damage, just be a nuisance to people on the ground as far as having to hear that.
    http://dsc.discovery.com/videos/mythbusters-sonic-boom/
     
  9. docv

    docv Well-Known Member
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    Love that show (Mythbusters) wouldnt that be a great job.. :Thumbsup:
     
  10. Justa Jim

    Justa Jim Well-Known Member
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    You are correct regarding major damage, however they will rattle dishes and move soda machines just a bit. :cool:

    Jim
     
  11. Dr Obnxs

    Dr Obnxs New Member

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    THink about it...

    there's conservation of energy to think about. The intensity of the shock wave at the plane has to decrease as you get farther from the path of the plane. Otherwise it would take more and more energy to propogate the wave as you got further and further from the path of the plane.

    What's interesting is that the engine noise we used to think of as normal would now be considered very, very unacceptable.

    Matt
     

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