Stem Cell. By definition, all stem cells: have the ability to divide and create an identical copy of themselves, a process called self-renewal; and. can also divide to form cells that mature into cells that make up every type of tissue and organ in the body.
Lycra, a brand name of Spandex, is a man-made fiber that can stretch better than rubber and will not break down after exposure to body oils, lotions, detergent, or perspiratio â¦ n. After ten years of research, DuPont Chemical Company's scientist Joseph C. Shivers invented it in 1959.
The Slinky was invented and developed by naval engineer Richard T. James in 1943 and demonstrated at Gimbels department store in Philadelphia in November 1945. The toy was a hit, selling its entire inventory of 400 units in ninety minutes.