Here's a new visualization experiment on the sandbox site of the Encyclopedia of World Problems and Human Potential:
It's a "Circle Packing" visualization featuring all entries clustered by their types and databases.
Consuming data from our API, visualizing using the excellent open-source D3.js framework.
https://www.askthefox.org/visualizations/all/circlepacking
Enjoy, retweet, and stay tuned for more (complex) visuals!