It may seem obvious, but the red and green lights on your Milwaukee Tools hard hat light are, more often than not, an indication of the lamp's battery life. It's probably even more obvious that a ...

A company started by two scientists has developed a hard hat that will do a better job protecting workers from on-the-job brain injuries. (Story aired on All Things Considered on Sept. 9, 2022.) ...

He designed the first-ever hard hat in 1915, which was made from layers of canvas that were steamed together with glue, a featured a leather brim, and a shock-absorbing suspension device inside.