What Is The Shape of Space? (ft. PhD Comics)

The video explores the concept of space as a dynamic entity, as predicted by general relativity. It discusses how space can bend, ripple, and expand due to matter and energy, and introduces the idea of space curvature. The video explains different possible shapes of the universe based on its curvature: positively curved, flat, or negatively curved. It describes two methods to measure the universe's curvature: by measuring angles in triangles and by assessing the density of energy and matter. Current measurements suggest the universe is flat, which is considered a cosmic coincidence, as a slight change in mass-energy density would result in a curved universe.

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