
Can You Tell Mathematics from Poetry? Take the Quiz to Find out
"_______ is the ______ of logical ideas"—Albert Einstein. Do the words "mathematics" or "poetry" fill those blanks?
Evelyn Lamb is a freelance math and science writer based in Salt Lake City, Utah.

Can You Tell Mathematics from Poetry? Take the Quiz to Find out
"_______ is the ______ of logical ideas"—Albert Einstein. Do the words "mathematics" or "poetry" fill those blanks?

A Few of My Favorite Spaces: The Torus
Math is always better over an orientable genus one pastry, the tastiest of topological examples.

Math on the Run
If you ran a race at an average pace of 3:07 per kilometer, did you run any single kilometer in exactly 3:07? Well, it's complicated.

By Solving the Mysteries of Shape-Shifting Spaces, Mathematician Wins $3-Million Prize
The second annual Breakthrough Prize in Mathematics goes to topologist Ian Agol of the University of California, Berkeley

The Scariest Math Stories I've Written
You might need to leave the light on at night after reading these. Brace yourself for zombies, devils, mummies, and...higher homotopy groups?

Teaching the Controversy: Is 5 × 3 Five 3s or Three 5s?
The latest (misnamed) "Common Core math" flare-up: is 5 × 3 Five 3s or Three 5s?

A Few of My Favorite Spaces: The Fano Plane
The intuition-challenging Fano plane may be the smallest interesting configuration of points and lines.

The Subterfuge of Epsilon and Delta
The epsilon-delta proof, the nemesis of many a calculus student, is an initiation rite into the mysteries of proof writing.

Make Your Own Font, 1 Cut at a Time
Move over, four-color theorem! It's time for the one-cut theorem: You can cut out any shape you want with one cut if you're willing to do some clever folding

A Few of My Favorite Spaces: the House with Two Rooms
What does it mean to understand a mathematical object? I didn't truly believe in the house with two rooms until I built it for myself.

Impossible Wallpaper and Mystery Curves: Exploring Symmetry in Mathematics and Art
In his new book Creating Symmetry, Frank Farris uses ideas from advanced mathematics, such as complex analysis and abstract algebra, to transform snapshots of landscapes, flowers, or even his dinner into beautiful repeating designs.

A Few of My Favorite Spaces: The Line with 2 Origins
The provably undrawable line with two origins illustrates a simple but important topological property

Change Your Open Sets, Change Your Life
The concept of the open set is fundamental in topology. What is it, and why does it matter?

An Epic Quest on an 8,812-Holed Donut
David Madore's online mazes let you explore complicated hyperbolic surfaces from the comfort of your favorite web browser.

Everything Looks Better in the Hyperbolic Plane
Make a yourself or your favorite mathematician into a work of art as a tiling of the hyperbolic plane.

A Few of My Favorite Spaces: the Infinite Earring
Topology is all about squishing and stretching; distance shouldn't matter. But the infinite earring illustrates the delicate interplay between topology and geometry.

Make Mathemusic with Me at Bridges
Join me for a workshop on mathematics, temperament, and pitch perception at the Bridges math+art conference in Baltimore.

The World's Most Accurate Parquet Floor–Based Personality Test
Are you a neurotic loner or a charismatic cult leader? Try this highly scientific personality test based on a parquet floor from one of Antoni Gaudí's Modernista masterpieces to find out

What It Feels like to Be Cedric VIllani
The Fields Medalist's memoir gives us a glimpse into the emotional highs and lows of being a passionate mathematician.

Help Make Wearable Cellular Automata a Thing
Fabienne Serriere wants to hack an industrial knitting machine to make cellular automata scarves, and you can back her project on Kickstarter.

The Unbearable Literalism of Being a Mathematician
Mathematicians, like kleptomaniacs, take things literally. This is the story of how I finally snapped and wrote a strongly worded blog post about why literary disclaimers annoy me.

A Belated Apology to Mozart and Modular Arithmetic
What do Mozart and modular arithmetic have in common? I used to think I didn't like them. I'm sorry, Mozart and modular arithmetic. Please forgive me.

A Few of My Favorite Spaces: Cantor's Leaky Tent
The mathematical space called Cantor's leaky tent is connected but just barely: remove one point, and the whole thing falls apart.

When the Mona Lisa Is NP-Hard
Bob Bosch and Tom Wexler have developed a new way to make your favorite masterpieces into connect-the-dots puzzles. All you need is a little bit of quantification and a lot of computing time.