# mathtourist

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### Using Mathematics to Repair a Masterpiece

The author shows how new mathematical techniques can be used to revitalize a 650-year-old work of art.<p>Mathematics is everywhere, if you know where to …

### Crocheting coral reefs to learn geometry and smash the patriarchy

<i>When Margaret Wertheim and her sister began crocheting coral in front of the TV, they didn't suspect it would turn into a global environmental</i> …

Kinesiology### From Prototype to Product: Snowflakes

Time to level up! This is the first in a series of posts about converting desktop 3D printer models into designs optimized for printing on …

### Your brain does not process information and it is not a computer – Robert Epstein

No matter how hard they try, brain scientists and cognitive psychologists will never find a copy of Beethoven’s 5th Symphony in the brain – or copies …

### 5 Mistakes to Avoid when Drawing a Soccer Ball

<i>This is it, the pet peeve that drove me to finally get a blog of my own so I can organize all my thoughts and get this off my chest…</i><p>Soccer balls …

### Folding fractions

Can you fold a piece of paper in half? Of course you can, it’s easy, you just match the two corners along one side. But can you fold it in thirds? …

Mathematics### The Dice You Never Knew You Needed

Earlier this spring, at a mathematical circus of a conference in the basement ballroom of Atlanta’s Ritz-Carlton, two scientists from the Dice Lab, Robert Fathauer and Henry Segerman, débuted their newest specimen, fresh from the petri dish. They had invented—or, rather, discovered; no, really …

Mathematics### Strange but True: Turning a Wobbly Table Will Make It Steady

It's a problem as old as civilization: the wobbly table. You may have thought your only recourse against this scourge is a hastily folded cocktail …

Mathematics### The world’s largest prime number has 23,249,425 digits. Here’s why you should care.

<b>Update, Jan. 4, 2018:</b> On Wednesday, the Great Internet Mersenne Prime Search announced that a computer owned by Jonathan Pace in Germantown, …

Mathematics### New Mersenne Prime Discovered, Largest Known Prime Number: 2^74,207,281 - 1

Dave Knott writes: <i>The Great Internet Mersenne Prime Search (GIMPS) has discovered a new largest known prime number, 2^74,207,281-1, having 22,338,618</i> …

### This is the most detailed map yet of our place in the universe

We know that the Earth and the solar system are located in the Milky Way galaxy. But how, exactly, does the Milky Way fit in among the billions of other galaxies in the known universe?<p>In a fascinating 2014 study for <i>Nature</i>, a team of scientists mapped thousands of galaxies in our immediate vicinity, …

### The Case of the Immortal Detective: Sherlock Holmes and His Enduring Appeal

Sherlock Holmes has been the subject of more screen adaptations than any other literary character, with 75 different actors donning the deerstalker …

Literature### How the moon got its tilt—and Earth got its gold

Miniplanets zooming through our early solar system passed close to our moon and tugged it into the strange, tilted orbit it has today, according to a …

Astronomy### Newton's Apsidal Precession Theorem

Gravity Plus Inverse Cube Force – WillowW<p>This image shows three imaginary planets orbiting the Sun. The blue planet follows a realistic trajectory: …

### UCSB Honors Students Decipher the Impossible in ‘Alice’s Adventures in Wonderland’

Sometimes, all you have is a good title. This was the challenge that faced Jeffrey Stopple as he planned his curriculum for the fall 2015 …

### In the Mind of the Fractal King - Preview Issue

Our namesake, the nautilus, is not just a cultural and mythical object; it has also some rich (and not imagined) math to it. That’s because it is one …

Mathematics### Mathematics research reveals that the shape of a pipe dramatically affects how pollutants and other chemicals will spread | NSF - National Science Foundation

<i>This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current</i> …

### The Mathematical Surprises of Triangles, Squares and Pentagons

There are 101 non-fiction, and several fiction, books credited to popular science and mathematics writer Martin Gardner (1914-2010) , who would have …

Mathematics### Helpers for 72-pencil sculpture by mathgrrl

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides …

### Wobbly table? Applied math can fix that

<i>We are excited to be running a series of posts on applied mathematics by Nicholas Higham over the next few weeks. Higham is editor of</i> The Princeton …

### How to Create Art With Mathematics

Can you generate aesthetically pleasing, symmetrical curves with two numbers and a simple mathematical function?<p>The beautiful color illustration of …

### A Twisted Path to Equation-Free Prediction

Complex natural systems defy standard mathematical analysis, so one ecologist is throwing out the equations.<p>Sometimes ecological data just don’t make …

### Mystery solved: How these rocks got their strange hexagonal shape

In many places worldwide, such as Devils Tower in Wyoming and the Giant’s Causeway in Northern Ireland (image), ancient lavas cooled into hexagonal …

Northern Ireland