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space-time continuum

n.
1.the 4-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located

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  • Idiom of the Day

    keep a straight face
    to stop oneself from smiling or laughing
    It was difficult to keep a straight face when the man fell off his chair.



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    Cholera T.B Germs
    Discoverer/Inventor : robert koch (germany)
    Year : 1877      .. More >>
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