2.41 දසුන්
In 1907, Belgian-born American chemist Leo Hendrik Baekeland made one of the most transformative discoveries of the 20th century: Bakelite. It was the first wholly synthetic plastic and ushered in an explosion of new man-made materials that marked the beginnings of our modern industrial age.
නිදහස් කරන්න: Mar 01, 2018
ධාවන කාලය: 59 මිනිත්තු
භාෂාව: English
ශබ්දාගාර:
රට: United States of America
කාස්ට්:
