## Happy Numbers Have No Density

These blissful integers are a bit mysterious

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Because you know it has to be when you write 400 words explaining it

June 9, 2019 — Evelyn Lamb

Gary Urton explains what we can and cannot know about Inka khipus

June 8, 2019 — Evelyn Lamb

Euclid’s proof of the infinitude of primes opens the door to some interesting questions

May 26, 2019 — Evelyn Lamb

Moon Duchin shares an abstract theorem with surprising connections to gerrymandering

May 18, 2019 — Evelyn Lamb

This holey mathematical object was discovered by a Swiss mathematician and then forgotten for decades

May 12, 2019 — Evelyn Lamb

Suresh Venkatasubramanian tells us about one of the most important tools he uses to root out algorithmic bias

April 28, 2019 — Evelyn Lamb

Ursula Whitcher tells us why she loves this physics-inspired branch of mathematics

April 11, 2019 — Evelyn Lamb

Middle school math teacher Fawn Nguyen tells us why a classic right triangle fact is her favorite mathematical result

April 6, 2019 — Evelyn Lamb

What the heck does “three times less than” mean?

March 23, 2019 — Evelyn Lamb

Robert Ghrist shares a beautiful link between exponentiation, differentiation and shift...

March 14, 2019 — Evelyn Lamb

Cynthia Flores describes how Heisenberg’s famous principle has shaped her mathematical career and worldview

March 2, 2019 — Evelyn Lamb

Mathematicians Nikita Nikolaev and Beatriz Navarro Lameda share their favorite theorem and their mathematics-themed wedding

February 17, 2019 — Evelyn Lamb

Black History Month in the U.S. is a good time to celebrate these important people

February 16, 2019 — Evelyn Lamb

Alexandria Ocasio-Cortez is right: machines can lead to racist outcomes

February 2, 2019 — Evelyn Lamb

Nira Chamberlain, the World's Most Interesting Mathematician, describes the delicate mathematics of weather models

January 24, 2019 — Evelyn Lamb

Skip Garibaldi tells us about the numbers we can never describe

January 12, 2019 — Evelyn Lamb

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