KOLKATA: Kolkata Metro has launched a paper-based QR Code ticketing system in an effort to modernize its ticketing process. The trial run of this system was initiated at Sealdah Metro station on the East-West Corridor. Commuters traveling within the East-West Corridor can now purchase paper-based QR code tickets exclusively from the counter at Sealdah Metro station. Developed by the Center for Railway...
CHENNAI: Researchers at Indian Institute of Technology - Madras (IIT Madras) have developed a three-dimensional (3D) paper-based portable device that can detect adulteration of milk in 30 seconds. The test could be performed at home. It can detect multiple substances used as adulterating agents, including urea, detergents, soap, starch, hydrogen peroxide, sodium-hydrogen-carbonate, salt and...
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