convex

The bottle has an unusual convex base, meaning it cannot stand upright, and it is made of coarse glass, full of tiny air bubbles.

On a convex or tubular structure such as the outside surface of a blood vessel, cells tend to move circumferentially around the shape.

Shortly after Russia invaded Ukraine last year, engineers at Convex, a Russian telecommunications company, needed to find American equipment to transmit data to the country’s feared intelligence service.

Convex’s employees soon found a solution.

While Cisco, a U.S. tech provider, had halted sales to Russia on March 3, 2022, Convex’s engineers easily obtained the Cisco gear they needed through an obscure Russian e-commerce site called Nag, which had gotten around international trade restrictions by buying the American equipment through a web of suppliers in China.