A durable dahlia. A vigorous vinca. Here are 20 new garden plants to watch for this year
Like most gardeners, I have favorite plants I’ve been growing for years and will continue to grow, like fragrant and tasty ...
Scientific American19h
Here’s How to Make Flexagons—Folded Strips of Paper with Strange and Surprising Properties
The triangles on one side are numbered 1, 2 and 3; the triangles on the other, 4, 5 and 6 ... from a form that somewhat resembles a three-leaf clover. The decahexaflexagon (10 faces) has 82 ...