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How did Newton define the ray of light?

less than 1 minute read

Newton’s book Opticks is probably the first piece of literature to propose that light is not continuous. And this (closely) is his argument in the very secon...

Lines in spherical geometry

3 minute read

Spherical geometry : A type of non-Euclidean geometry which forms a surface (2 dimensions) of a sphere (obviously 😉 )