You can buy gears off the shelf, of course, and get accurately machined parts exactly to your chosen specification. However, there’s something rugged and individualist about producing your own ...

When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.

Scientists have demonstrated that large groups of bacteria can turn microgears millions of times larger than themselves, showing potential for "smart" biomechanical systems. Interestingly, the ...

Democracy deserves more than quick fixes and slogan. The hard work of complexity, coalitions, diverse ideas, and nuanced ...