Vật liệu siêu bền từ tơ nhện
Tơ nhện vốn đã cứng và nhẹ hơn thép, song giờ đây các nhà khoa học lại tìm ra cách tăng độ cứng của nó lên ba lần bằng cách cho thêm một lượng nhỏ kim loại.
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u4PhuqXhu4Nvw6Hhu4Nv4buJw6Hhu6/huq3GocOh4buvw7rDoeG7leG6p8Oh4buTb3Dhu5duw6Hhu4Phur3hu5fDoeG7l29q4buXw6Hhu4dk4buXbsOh4buD4bql4buDb8Oh4buHY+G7r8Oh4buDb+G7tcO54buDw6Hhu5PhurTDoeG7r292w6rhu6/DocODZ8Oh4buvw7rDoeG7g8O9w6LDoeG7g2934buXbjDDoeG7rm9nxqHDoeG6oOG7l2fDg+G7qeG7sWfhu63hu60=