…a straight line from the centre to the circumference of a circle or sphere…
…a straight line from the centre to the circumference of a circle or sphere…
…a line of variable length drawn from a fixed origin to a curve…
…the radius of a circle which touches a curve at a given point and has the same tangent and curvature at that point…
…a black hole of a kind supposed to result from the complete gravitational collapse of an electrically neutral and non-rotating body, having a physical singularity at the centre to which infalling matter inevitably proceeds and at which the curvature of space-time is infinite. A Schwarzschild radius is the radius of the boundary of a hole of this type…
…a black hole of a kind supposed to result from the complete gravitational collapse of an electrically neutral and non-rotating body, having a physical singularity at the centre to which infalling matter inevitably proceeds and at which the curvature of space-time is infinite. A Schwarzschild radius is the radius of the boundary of a hole of this type…
