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 first traditional version of pull-on underwear is believed to have been invented in the 13th century. Before that, loincloths had been found on 7,000-year-old remains of humans, but only became important in the 13th century. Keep Learning.