Catherine Thimmesh demonstrates how ordinary household objects transform into extraordinary chain-reaction machines that ...

Explains how simple machines, such as levers, pulleys, wheels and axles, and inclined planes, work together to make tasks easier by trading force for distance or vice versa. It illustrates the concept ...

In its earliest days, the technology was used to control simple machines and fabricate useful products out of a variety of materials. Before CNC, the machines that created those products were ...

A very simple machine can be made from page 71 of this magazine The ancient idea of a device which would test the validity of a system of thought has recently made progress. Skip to main content ...