Senior Technology Editor Dennis Scimeca discovered technologies that ran from the practical, to the impressive and the just plain weird.

The Google Nest Doorbell (battery-powered) is on sale at Amazon for $139.99, down from the list price of $179.99.

Dow is also making moves to improve liquidity, selling a minority stake in its U.S. Gulf Coast infrastructure for up to $3 billiona strategic play to boost financial flexibility. Looking ahead, Dow is ...