From the outside, a sewing machine is a wonderful bit of magic. A needle shoves thread up and down, and somehow a seam is formed. Here's a little YouTube video of this: What is that thread ...

The sewing machine is a tool that many of us will have somewhere around our workshop. Concealed within it lies an intricate and fascinating mechanism. Some of us may have peered inside, but very ...

Sure it was responsible for the flashing and blinking of some the 1990s' worst web home-pages, but how else would you explain the inner workings of an aircraft engine or a sewing machine, all in ...