In 1876, Peter Guthrie Tait set out to measure what he called the “beknottedness” of knots. The Scottish mathematician, whose research laid the foundation for modern knot theory, was trying to find a ...

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The math of even the simplest ocean waves is notoriously uncooperative. A team of Italian mathematicians has made major ...

The Great Pyramid of Giza, the oldest and sole surviving Wonder of the Ancient World, has attracted the interest of philosophers, savants, and travelers for at least four millennia. Some of this ...

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Institute of Science, Nanjing University of Science and Technology, Xiaolingwei 200, Xuanwu District, Nanjing 210094, P. R. China ...