"Probably 80% of the time you're completely stuck." - Ashoke Sen

The other 20% reshaped physics. Prof. Sen has been awarded the 2026 Oskar Klein Medal, the first Indian physicist to receive it, for his work on S-duality, black-hole entropy and string field theory.
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Proving a² + b² = c² without a single word.
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Solving a Megaminx with graph theory.
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The Math Flow retweeted
“Philosophy is written in this grand book, the universe, which stands continually open before our eyes… It is written in the language of mathematics.”
- Galileo Galilei
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The Math Flow retweeted
Every conic is a slice of the same cone.
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2 is the only even prime number.
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“Those laws are within the grasp of the human mind; God wanted us to recognize them by creating us after his own image so that we could share in his own thoughts.”
- Johannes Kepler
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Every conic is a slice of the same cone.
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A simple proof of the Pythagorean theorem.
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The extraordinary legacy of the Bernoulli family.
The Bernoulli family was a remarkable dynasty of Swiss mathematicians and physicists who made significant contributions to various fields of science in the 17th and 18th centuries. The family produced 8 prominent academics, most notably Jacob, Johann, and Daniel Bernoulli, who of calculus, differential equations, probability theory, and fluid mechanics.
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A coffee cup and a donut are the same object, topologically.
Stretch and bend, but never tear or glue. Each has exactly one hole, so one deforms continuously into the other. They are homeomorphic.
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The Math Flow retweeted
The Fibonacci Spiral Clock.
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Almost any shape can roll smoothly; you just need the right road.
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“Philosophy is written in this grand book, the universe, which stands continually open before our eyes… It is written in the language of mathematics.”
- Galileo Galilei
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On this day in 1759, Jacob II Bernoulli was born in Basel into the most remarkable family in the history of mathematics: the Bernoulli family.
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The Fibonacci Spiral Clock.
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The Math Flow retweeted
Rotation matrices at work.
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“The infinite! No other question has ever moved so profoundly the spirit of man.”
- David Hilbert
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The circle lore.
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Three golden rectangles, set mutually perpendicular, quietly define a regular icosahedron. Their twelve corners are exactly its twelve vertices.
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