What Is Spacetime?

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  • 5 months ago
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    A 4 dimensional manifold with 3 dimensions of space and 1 dimension of time. Its metric is

    dS^2 = dx^2 + dy^2 + dz^2 - dt^2

    Notice the minus sign before the time term. This is the only thing that makes time different from space.

  • 5 months ago

    It is a name for the first 4 dimensions.

  • 5 months ago

    Spacetime = space + time. Or mathematically, space^2 - time^2.

  • 5 months ago

    Trust me. Just look it up.

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