She was 14 years old when she invented this machine. It won her a National Award. Watch.

Meet Remya Jose. She is the inventor of the washing-cum-exercise machine that won her a National Award. During her 10th standard, her mother fell ill and father was undergoing medical treatment. Remya had to change three buses while going to and coming from school and spend about two hours each way. As there was no washing machine at home, the chore of doing the laundry fell to her and her twin sister. So instead of just wishing futilely for a washing machine, she decided to try her hand at making one during the vacations!
Mr Nand Lal Gupta in his lab in Solan, Himachal Pradesh

TBI Changemakers: Mr. Nand Lal Gupta – Five Decades of Incredible Innovations

It is not often that we come across serial innovators. And innovators who use locally sourced materials to create products that impact the lives of people in the region by providing means of livelihood and everywhere else by providing useful products at lower prices, are rare indeed. So meet Mr. Nand Lal Gupta whose innovations include adhesives made from cactus, boards made from pine needles and building blocks made of soil!