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Ergosphere
A Whirlpool in Space
Black Holes rotates, and in doing so they cause a current in space time. Learn more about this phenomenon.
The Simplex
In mathematics, a simplex is a generalization of a triangle and tetrahedron. The first four simplexes are made from familiar shapes: a point, a line segment, a triangle, and a tetrahedron.
Properties of Water
Why is water essential for Life to exist on Earth? We are about 60% water - and there are some organisms that are as much as 90% water!
Platonic Solids
Five Ancient Shapes
Learn about the tetrahedron, cube, octahedron, dodecahedron, and icosahedron, the 5 regular polyhedra known as the Platonic solids.
Who is Thomas Malthus?
Discover the provocative ideas of Thomas Malthus, whose groundbreaking theories on population and scarcity continue to spark debate and shape our understanding of human society and its future challenges.
Group Definition
A central object in Abstract Algebra
The mathematical field Abstract Algebra is, well, abstract! To get a feel for this fascinating - and useful! - subject, learn the definition of a group. This is where abstract algebra truly begins.
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