Living Museum of Learning

Enning's green 3D bicycle — with spinning wheels, red axes, and a seat of her own

A tiny Game Bridge, and a tiny discovery by a programmer from another era

The Second Weekend Attempt to Open Leo's Learning Channel

We thought Git had already left the server. It had only left halfway.

A 100:1 refactoring experiment in Chinese chess

When “perpendicular” became a word, a secant became a moving object, and a difficult problem became a lesson in how to look.