A team of engineers and scientists has shown for the first time that a hard-X-ray cavity can provide net X-ray gain, with X-ray pulses being circulated between crystal mirrors and amplified in the ...

Choosing the best knife sharpener can be difficult, given the myriad of choices. However, being able to properly maintain the edge on your cutting tools—whether it’s a pocket knife or a fillet ...

There’s nothing like the glow of hot steel, the ring of a hammer, and the final polish of a razor-sharp edge. In this project, we push the limits of knife-making creativity, forging blades from chains ...