Scientists Create the World's Toughest Self-Healing Material

Do you get nervous when somebody borrows your phone? Not because they might invade your privacy but simply because they might drop it and break its glass? You are surely not alone, and the researchers at the Indian Institute of Science Education and Research (IISER), Kolkata might have just found the perfect material to make a smartphone screen: A transparent material that is hard and self-heals when cracked.