Bakhshali, Jambudvipa and India’s role in science

London’s Science Museum on Tuesday unveiled a new exhibition that traces India’s contribution to science and technology over the past 5,000 years.  The Bakhshali manuscript, loaned to the exhibition by the Bodleian Library in Oxford, which contains the oldest recorded origins of the symbol “zero”. Dated to 3rd century The Read More …

New wetland conservation rules notified

The Centre on September 26 notified a new set of rules under the head Wetlands (Conservation and Management) Rules, 2017 replacing the Wetlands (Conservation and Management) Rules, 2010. One of the outstanding rules of the notification is that encroachments on wetlands stand banned.  The rules prohibit solid waste dumping, discharge Read More …

Perovskite solar cell

These cells represent the most exciting approach to build solar cells that are inexpensive and highly efficient.  A perovskite solar cell is one that includes a perovskite-structured compound, most commonly a hybrid organic-inorganic lead or tin halide-based material, as the light-harvesting active layer.  The terms “perovskite” and “perovskite structure” are Read More …