The first commercially successful mouthguard was invented by a dentist in 1890, initially marketed to boxers. elaborate share
The rifling in a hunting rifle's barrel spins the bullet, increasing its accuracy and range significantly, unlike a shotgun's smooth bore. elaborate share
The first athletic shoes were made of canvas and rubber. elaborate share
Climbing ropes are often tested to destruction (meaning they're broken) during manufacturing to ensure they meet safety standards. elaborate share
The sweet spot on a tennis racket is not actually a spot, but rather a relatively large area. elaborate share
The first mass-produced skateboard was called the "Makaha" and was released in 1963. elaborate share
The iconic three stripes of Adidas were originally inspired by a shoemaker's laces. elaborate share