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 ...
The Mehta family of Isanpur was on an outing when it saw small kids rummaging through sanitary pads while collecting plastic items to earn a living, at the city's Pirana dumping yard. The project has ...
The last two decades have seen substantial improvements in ultrasonic plastic-welding machines. Bench-top models feature proportional-valve controls, linear encoders, line-voltage regulation, internal ...
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