For most people, calculators are cheap and simple devices used for little more than addition and the odd multiplication job.

Smoothie bikes are a great way to make a nutritious beverage while getting a workout at the same time. [Tony Goacher] was ...

The human body is remarkably good at handling repairs. Cut the skin, and the blood will clot over the wound and the healing ...

When last we saw [xoreaxeax], he had built a lens-less optical microscope that deduced the structure of a sample by recording ...

Everyone knows that bearings are a consumable wear item, and that the power head of a vacuum likely contains bearings that will eventually need to be replaced. Yet when the manufacturer wants you ...

When you can buy something at a low price in one location, and sell it at a higher price somewhere else, you’re engaged in what economists call “arbitrage”. We’re not sure ...