Technology

Unraveling Calendar

Matt @ Make: Online found this calendar that marks the days by unraveling a knit with printing on it. The piece is by Patrick Frey. Even from the video it’s not quite clear how it operates: does a motor pull a certain amount of yarn down from the textile at the same time each day, […]

How-To: Ball-In-Cage Switch

Sean Ragan just put up a tutorial for this simple analog tamper-detecting switch for guarding his garden over on Make: Projects: This clever mechanical switch remains open so long as it is balanced in an upright position. But disturb it in any way, and the ball falls against the bars of the cage and closes […]

Great Ditrigonal Icosidodecahedron Quilt

George Hart on Make: Online writes: The traditional craft of quilting can be used to make many mathematical forms. While quilters have always used geometry to work out repeating patterns, some modern quilters go further in using mathematical objects as the subjects of their quilts. Here are two impressive examples by Sarah Mylchreest and Mark […]