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How Radio Astronomy Reveals the Universe
Radio waves, longer and less energetic than visible light, give astronomers access to some of the most obscure physics in the cosmos.
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The Mysterious Math of Perfection
Enter the world of perfect numbers and explore the mystery mathematicians have spent thousands of years trying to solve.
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Isadore Singer Transcended Mathematical Boundaries
A former graduate student reflects on how Isadore Singer, who died on February 11, brought together mathematicians, physicists and anyone else interested in the deeper connections between diverse fields.
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How to Understand COVID-19 Variants and Their Effects on Vaccines
Researchers are tracking the different strains of SARS-CoV-2 and studying how they spread through our population and our bodies.
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Topology 101: The Hole Truth
The relationships among the properties of flexible shapes have fascinated mathematicians for centuries.
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The Crooked Geometry of Round Trips
Imagine if we lived on a cube-shaped Earth. How would you find the shortest path around the world?
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How Claude Shannon Invented the Future
Today’s information age is only possible thanks to the groundbreaking work of a lone genius.
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Contemplating the End of Physics
Has physics reached the limits of what we can discover — or are the possibilities only just beginning?
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Some Math Problems Seem Impossible. That Can Be a Good Thing.
Struggling with math problems that can’t be solved helps us better understand the ones we can.