In 1999, researchers at one of Air Liquide’s customer companies approached the French industrial gases giant for help with a problem: They needed a nonchlorinated alternative to dichlorosilane, a ...

Efforts to crack down on precursor chemicals, used to produce drugs like cocaine and methamphetamine, seems to create a “balloon effect,” pushing drug production into countries with laxer restrictions ...

Chemical vapor deposition (CVD) is a process of deposition of a solid material, such as nanotubes, nanowires, particle, thin film, and much more, on a substrate by creating reactive species in the ...

A Mexican marine, part of an anti-drug and anti-corruption deployment, uses a sniffer dog to inspect cargo in the Port of Manzanillo. (Salwan Georges/The Washington ...

The Precursor is a pocket-sized mobile device with a physical keyboard and a small display. But it’s not a smartphone. Instead it’s an open hardware device aimed at developers and enthusiasts looking ...

To use a Precursor Tablet, you need to clear out a Lost Tower. Once you find and activate the Beacon at the end of the Tower's map, you can place the Tablet into it from the Atlas of Worlds. When you ...