Storing information through magnetic patterns was first demonstrated to record audio. Since then, this concept has been applied for different products like floppy disks, audio/video tapes, hard disks, ...

A common problem at parties and get-togethers – although we don’t remember this happening – is regulating the amount of alcohol people consume. [Mike] came up with an interesting solution to make sure ...

It’s a problem common to every hackerspace, university machine shop, or even the home shops of parents with serious control issues: how do you make sure that only trained personnel are running the ...