ONE day in the 1940 ’ s, Swiss engineer George de Mestral took his dog for a walk. Upon returning home, he noticed that his clothes as well as the dog’s fur were covered with burs.
घरी परतल्यावर आपल्या कपड्यांवर आणि कुत्र्याच्या केसांवर खूप काटेरी कुसळ चिकटल्याचे त्यांना आढळले.