Discover how to build a simple DIY Stirling engine powered by heat from candles using an empty spray can and pen components.

With clever DIYs, plenty of patterns and a playful approach to colour, decor expert Alexandra Gater shows us how she brings a ...

Lots of Ryobi toolkits come with these tiny 1.5 Ah batteries, but are they any good? Yes, if you're using the right tools.

Distributed computing projects—in which software ties together many internet-connected PCs to work on computationally massive problems—can put that power to good use. Perhaps you've heard of SETI@home ...