Badminton rackets from wooden to aluminum to carbon-fiber composite materials. They went from an oval shape to a tear drop shape. Strings were originally made out of animal guts and eventually developed to synthetic materials like nylon. The grips have also moved towards synthetic materials. (21 marzo 1800 anni – 17 ore 13 min, 6 nov 2018 anni)
Aggiunto al nastro di tempo:
Data:
21 marzo 1800 anni
17 ore 13 min, 6 nov 2018 anni
~ 218 years