A school dropout from a poor family in southern India has revolutionised menstrual health for rural women in developing countries by inventing a simple machine they can use to make cheap sanitary pads.
Korean: Once I tried to learn hangul characters, it's like Kanji and it is made so well. As an Asian I should have mastered at least one foreign language. However, I didn't like Kimchi (Korean pickle) and did not learn anything. It's a shame.