An Indian man, who spent five years studying women's sanitary pads, has been praised on Twitter for his invention to produce them cheaply.
Arunachalam Muruganantham has been hailed as a "hero" on social media site, as users are calling him the hero for women in poverty and are also saying that he deserves a Nobel Prize for his invention, the Daily Star reported.
Muruganantham decided that the pads must be made of something other than the cotton and developed a low-cost way to break down cellulose, a material from the bark of a tree, into a fluffy substance and press it into the shape of a pad.
He has developed 250 machines in 18 months and has trained young women and girls to use them.
Scientists at the Indian Institute of Technology have also entered him for a national innovation award.