Researchers have proposed using polymer membranes modified with copper, zinc, and chromium metal ions for water purification. These polymers were used for the first time in water purification via ...
The Les Paul Standards displayed at the 1955 NAMM Show were the first to ever be fitted with no-wire ABR-1 Tune-O-Matic bridges and Stop Bar tailpieces, and were graced with unique custom finishes ...
Alarmingly, the report reveals that 20% of groundwater samples across India contain nitrate levels exceeding the safe limit of 45mg/l, with some districts reporting concentrations of over 40%.