Researchers from the Indian Institute of Technology Bombay (IIT Bombay) seem to have a technological solution to this problem. Led by Prof Maryam Shojaei Baghini, researchers from IIT Bombay and Gauhati University, have designed a robust, accurate and affordable soil moisture sensor using graphene oxide.
The researchers developed a simple and innovative technique to improve the bonding in friction welding method by creating a tapered end on one of the surfaces.