Articles in this Issue
Editor’s Note from April 14, 2016
Issue 46: Gorgeous feathers, Cairo’s cave churches, ant trails, and clouds.
Simply Beautiful Feathers
A display of birds’ useful adornments.
From Garbage to Glory
The cave churches of Cairo offer sanctuary in the midst of squalor.
Not All Who Wander Are Lost
How ants have solved the Traveling Salesman Problem.
Under the Cloud
Five amazing facts about the fluffy, immense formations above our heads.
Wonder on the Web
Issue 46: Links to amazing stuff.