BBC3 个月
The incredible story of the boy who invented Braille
How 15-year-old Louis Braille invented a revolutionary tactile code for the visually impaired.
BBC3 个月
The incredible story of the boy who invented Braille
How 15-year-old Louis Braille invented a revolutionary tactile code for the visually impaired. How Lego is helping children with sight ... BBC Ideas The incredible story of the boy who invented ...