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Thread: Why Rotate?

  1. #31
    Junior Member fatpanda's Avatar
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    Quote Originally Posted by BeBerlin View Post
    Pressure (symbol: p or P) is the total force acting across (not along) a surface divided by the area of the surface. And a razor's edge is microscopic.
    So you are saying that when you push the edge against a hair the reaction force back on the blade from the hair is acting over a cross-sectional area that is micrometers thick... ok now I get it, so this stress with cause the blade to become more serrated like a bread knife?



    Quote Originally Posted by BeBerlin View Post
    There is for me, the main difference being feedback. A wedge will give you next to zero, because it does not flex, or sing. This caused me to apply more pressure initially ("Hm. Doesn't make a sound, doesn't really respond. Let's try harder. Ouch, that bleeds.").
    So go easy on the wedge! got it!

  2. #32
    Junior Member fatpanda's Avatar
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    Quote Originally Posted by jbcohen View Post
    Hay, fat panda look at carriem's answer. I said that on purpose.
    I don't understand what you are talking about...

  3. #33
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    Quote Originally Posted by fatpanda View Post
    So you are saying that when you push the edge against a hair the reaction force back on the blade from the hair is acting over a cross-sectional area that is micrometers thick... ok now I get it, so this stress with cause the blade to become more serrated like a bread knife?
    Either that, or God hates us all.

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