## Math You Can See: Art, Nature, Patterns, Society, and More

**GENERAL**

Math Munch: A Weekly Digest of the Mathematical Internet

Something for everyone!

**VISUAL ART AND ARCHITECTURE**

- Muslim rule and compass: the magic of Islamic geometric design | Alex Bellos, The Guardian

Includes a step-by-step guide for an Islamic-style tiling pattern. - Islamic Art and Geometric Design | Metropolitan Museum of Art
- Geometry of Iran's Mosques | Inhabitat
- Impossible World: Art

"Impossible art" by artists like MC Escher. - Math Art Tools | Math Munch

Fantastic online math art tools! - Symmetry Artist | Math Is Fun

Draw lines, dots, and circles in different styles and colors, and this web app makes reflections or rotations of what you drew. - Readers’ Gallery | Math Munch

Fabric art and drawings from Math Munch readers that show math (especially geometry). - The Numbers Project | Brandon Todd Wilson

Graphic design "logos" for numbers from 0 to 365 (in reverse order). - {3,3,7} Honeycomb Meets Plane at Infinity | Visual Insight

Gorgeous computer-generated image of "honeycomb in 3D hyperbolic space," etc. Just look at it. - Henry Segerman's Math Art

Mathematical art; 3-D sculptures & 2-D prints. Very cool colorful & printable dodecahedron on the "Autoglyphs" page! - Bathsheba Sculpture on Shapeways | Bathsheba Grossman

**VISUAL PATTERNS AND VISUALIZATIONS OF MATH**

- Visual Patterns

Not just tiles! Dozens of visual patterns with drawings and some real objects like Legos. - Factorization - Visual illustration of divisor pairs | GeoGebraTube
- Multiplication Table, Drawn to Scale

Colorful multiplication table drawn to scale! (10 x 10 is 100 times bigger than 1 x 1). Fun! - Movies and Math, Animated | mathani.tumblr.com

Super cool! Some great problems (like 7/18/15 area one), many great animations (like 6/23/15 roots one). - The Harriss Spiral | Alex Bellos, The Guardian

Pretty fractal curve made golden-ratio-style. This article has a great description of what is going on mathematically. - Polyhedra from Cardstock (Slide-Togethers)

George Hart's templates and demonstrations of polyhedral constructions that can be made from cardstock. - A Valentine from Möbius || Radcliffe Institute

Cutting up loops... cutting up two attached Moebius strips is really cool!! - Paper Clifford Torus | cutoutfoldup.com
- How To Teach Math With LEGOs | The Hub

Fractions, area & perimeter, multiplication, statistics... - Julia (Mandelbrot Set) Map (Google Maps style)
- Standing Two-Dimensional Waves Shown By Couscous | Steve Mould

Steve Mould uses couscous and a violin bow to create Chladni Figures demonstrating 2-dimensional standing waves. He includes a brief history of the math developed to understand them, mostly by Sophie Germain.

**MUSIC**

- Wintergatan Marble Machine (incredible musical instrument using 2000 marbles)
- The Saddest Thing I Know about the Integers | Evelyn Lamb

Math shows that you can't get perfect octaves from a bunch of perfect fifths. - What Pi sounds like | Michael Blake, YouTube

Surprisingly beautiful.

**SCIENCE, LITERATURE, NATURE, AND FOOD**

- Fibonacci Numbers in Nature

Slides and photos. - The Scale of the Universe

See how the sizes of things in our universe compare to each other by zooming in and out. - Alice's adventures in algebra: Wonderland solved | Melanie Bayley, New Scientist

Fantastic analysis of Alice as a commentary on math ideas of the time. - Huge 3200 Year Old Tree

Could be used for a proportions or estimation activity. - What 2000 Calories Looks Like - YouTube

Possible lesson inspiration here... - Incommensurate Cheez-Its | Christopher Danielson (Trianglemancsd)

Are Big Cheez-Its REALLY "Twice the size!" of regular? Christopher and his kids are on the case. - Gauss / Curvature & Strength (& Pizza) | WIRED

**SOCIETY AND SOCIAL JUSTICE**

- You Draw It: How Family Income Affects Children’s College Chances | NYTimes.com

Predict how college attendance depends on family income, then see how close you were. - Are you reflected in the new Congress? [2014] | The Guardian

Enter demographic info (sex, age, etc.) and find out how many members of the 2014 Congress share it. (It's not perfect; for instance, it doesn't include any multiracial options.) - Equal Population Mapper (interactive)

Find how much of any part of the US it would take to have an equal population to NYC, or LA, or TX, or... - Mapping Migration in the United States | New York Times

Fascinating map showing where people living in each state in 1900, 1950, or 2012 were born. - Parable of the Polygons | Vi Hart

How small, harmless-seeming choices can make a harmful world: discrimination simulation. - Math in the Real World | Get The Math

Some "real world" math for various art/sports/jobs; some dubious connections. Supposedly about algebra, but the Math in Music one, at least, would be good for any proportions work. Some are better than others.