هیدکی شیراکاوا، دانشمند ژاپنی برنده جایزه نوبل در 90 سالگی درگذشت

Nobel-winning Japanese scientist Hideki Shirakawa dies at 90

Shirakawa, who won the Nobel Prize in chemistry in 2000 for developing conductive polymers, a key component of modern touch screens, died late last month.