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  • floating using terminal velocity

    Jeffrey Arulraj

    Jeffrey Arulraj

    @jeffrey-xA7lUP
    Updated: Oct 20, 2024
    Views: 3.3K
    is it possible for a light material to float in mid air if it both rotates and has a constant velocity (terminal velocity) of the material design
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Replies

  • Ramani Aswath

    Member • Aug 25, 2012

    The terminal velocity is related to size, shape and density. A sheet of lead can float in a light up current if beaten thin and shaped properly. It does not have to rotate.


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  • KenJackson

    Member • Aug 25, 2012

    I'm having difficulty connecting the phrases "float in mid air" and "has a constant velocity."
    Aren't they mutually exclusive?
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  • Ramani Aswath

    Member • Aug 25, 2012

    KenJackson
    I'm having difficulty connecting the phrases "float in mid air" and "has a constant velocity."
    Aren't they mutually exclusive?
    It is the differential velocity that matters. In a thermal (or in any medium the object is falling), if the upward velocity matches the terminal velocity the object appears to float in a fixed position.
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  • Jeffrey Arulraj

    Member • Aug 25, 2012

    bioramani
    It is the differential velocity that matters. In a thermal (or in any medium the object is falling), if the upward velocity matches the terminal velocity the object appears to float in a fixed position.
    that is it then can we really make a very light object of larger diameter to float
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  • Ramani Aswath

    Member • Aug 25, 2012

    jeffrey samuel
    that is it then can we really make a very light object of larger diameter to float
    Not quite. Every heavier than medium object has a settling velocity. If it is lighter than it will have rising velocity. There has to be a counter velocity like a thermal up current or a thrust mechanism to overcome this.
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  • Jeffrey Arulraj

    Member • Aug 25, 2012

    so precise calculations and tolerance to external impacts have to be seen before we can apply it


    thanks sir
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