Researchers have developed a new method for quickly detecting and identifying very low concentrations of gases. The new approach, called coherently controlled quartz-enhanced photoacoustic ...

Choosing the best spotting scope tripod can be tricky. It can be tempting to go for something ultra-cheap – which isn't difficult to find – but there's definitely such a thing as false economy when it ...

Integrated optics is a system of light-controlling components combined into a single device. The ultimate aim is to create miniature optical circuits similar to the silicon chips that have ...

Exploration for and evaluation of mineral deposits.