I tapped the button on my rangefinder to send a laser at a group of three bedded rams. I was 465 yards away. Caught off-guard by the rams, I had to approach them from below and this was as close as I ...

For over 30 years, Barry Fox has trawled the world’s weird and wonderful patent applications each week, digging out the most exciting, intriguing and even terrifying new ideas. His column, Invention, ...