The Wallace–Bolyai–Gerwien theorem says that if you have two polygons of equal area, you can cut one into pieces, and then place them back together to form the second piece. Dima Smirnov and Zivvy Epstein made an interactive to demonstrate. Draw two shapes and watch the magic happen.
Projects by FlowingData See All →
Saving for Retirement and Age
People tend to have more money saved up over time, but range and variation also grow, and often it’s not enough.
Divorce and Occupation
Some jobs tend towards higher divorce rates. Some towards lower. Salary also probably plays a role.
The Stages of Relationships, Distributed
Everyone’s relationship timeline is a little different. This animation plays out real-life paths to marriage.