Month: February 2013

How-To: Ball-in-Cage Switch

How-To: Ball-in-Cage Switch

A ball-in-cage switch is a mechanical alarm switch that works on an ingenious principle. It has a single relatively unstable “open” position, in which a metal ball rests in a small divot in an insulating base, inside a cage made from two U-shaped metal staples that overlap one another without contacting. The ball is too […]

Black Makers Month: John Glass

Black Makers Month: John Glass

John is my dopplegänger. He works at NASA. That’s cool! He is an outer-space food packaging expert, a motocrosser, and an Arduino hacker. We all take packaging stuff for granted, but I can assure you that there are many challenging trade-offs. It’s great that someone as talented as John is working on these critical issues. I like the motocross and Arduino hobbies, too! I’m wondering if he’ll find a way to combine all those talents? I did hear that John has an Arduino project involving motocross. Good start! If only there was a way to get NASA involved with that project…