What Is a Manifold?
SMRTR summary
Manifolds are mathematical shapes that appear flat when viewed locally but have complex global structures, like Earth appearing flat to us despite being spherical. Introduced by Bernhard Riemann in the mid-19th century, manifolds revolutionized mathematics by providing tools to study curved spaces and higher dimensions, becoming essential for Einstein's relativity theory and modern physics applications.
SMRTR provides this summary for quick context. The original article belongs to Quanta Magazine.
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