Navy ships typically communicate with each other via radio or satellites, but every ship has a few backups just in case. One of the most common backups is the signal lamp, where sailors can send Morse ...

Hazel Picking, who has died aged 100, was a visual signaller in the WRNS during the Second World War. As a Girl Guide, Hazel Roberts (as she was born) had been good at Morse and semaphore, and, coming ...

We like to think of space as the one place where all tech is high and all gadgets are bleeding edge. That may be the case most of the time, but Japan’s Fukuoka Institute of Technology is taking one ...