Walmart just added a mysterious device to shopping carts, and what people think it does is raising major privacy concerns

Right now, the device attached to Walmart carts appears to be a location tracker used for cart management, not a tool for ...

Fire extinguisher ‘box’ allows safe transport of Li-ion batteries

NAGOYA--In the wake of a recent spate of fires caused by lithium-ion batteries, a research team from Nagoya University here ...