A paper sensor that can detect freshness of milk

Note4students Mains Paper 3: Science & Technology | Achievement of Indians in science & technology From UPSC perspective, the following things are important: Prelims level:¬†ALP test Mains level: Working and utility of the quality test News Scientists at IIT Guwahati have developed a simple paper kit that can test freshness of milk and tell how … Continue reading A paper sensor that can detect freshness of milk