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How does that happen? Scientific explanations

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  • How does that happen? Scientific explanations

    I thought of opening this so anyone curious can ask for explanations for any observations. We have engineers, medics, and bright sparks amidst us who can answer these questions.

    I'll start with this:
    Why some of the bodies of the Malaysian airline disaster where found naked in the field?

    Here goes.
    Explanation 1) mechanical force
    obvious forces during fuselage tearing apart rip off clothes, moving objects ripping, shearing, compressing objects in contact with seat belts, metal objects, other bodies, but there is a greater chance this will also tear the body (limbs, flesh)

    Explanation 2)
    Loose clothing that create air pocket between clothing and body. During fuselage ripping open suddenly, there will be rapid expansion of the the trapped air (Boyle's Law), bursting clothes off the body. Air in the cabin is at higher pressure than air out side cruising altitude (as altitude increases, atmospheric pressure decreases because of less air above one / press = density x g x height).
    Fitted clothing may remain on the body because there is little trapped air between tight clothing, so rapid expansion is very little, and clothing may be elastic, or it may be well strapped like ties, bras, belts.
    Last edited by torkham; 07-19-2014, 02:28 PM.

  • #2
    Nice thread, I am not sure whether this would relevant here but for all lovers of difficult problems and problem solving hobbyists: this year's (the 2014) International Mathematical Olympiad problems were recently released to the public. You can download all 6 problems in most of the languages (tough unfortunately no Pashto yet) here.
    http://www.imo-official.org/problems.aspx

    Be warned however, these problems make virtually any problem you will find in any undergrad Math textbook seem like childs play even tough they do not even require calculus (there are some recurring tricks such as exploiting invariants or the extreme principle that do help, if youre interested consult the holy text of IMO: "The Art and Craft of Problem Solving" by Paul Zeitz). You are given 1.5 hours per problem in the actual IMO tough us ordinary Mathematical mortals should give it many hours per problem -per my experience with the British Mathematical Olympiad problems- and so far I personally have never been able to solve a single IMO problem, this years included.

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    • #3
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