Physical sciences: GK, General Studies and Current Affairs

2019 National Science Day (NSD)

The National Science Day (NSD) is observed every yearon 28th of February to mark the discovery of Raman effect by Physicist C V Raman on 28th February, 1928. For his discovery, Sir CV Raman was awarded the Nobel Prize in Physics in 1930. In honour of this discovery and as a mark of tribute to ..

LOFAR telescopes helped to discover 300000 new galaxies

An international team of more than 200 astronomers from 18 countries has published the first phase of a major new radio sky survey at unprecedented sensitivity using the Low Frequency Array (LOFAR) telescope in the journal Astronomy & Astrophysics. The survey discovered 3,00,000 hidden galaxies using radio astronomy in a tiny corner of the northern ..

NASA decides to launch SPHEREx Mission to investigate origins of our Universe

US space agency NASA has recently unveiled a new space telescope ‘SPHEREx’ that would begin a two-year mission in 2023 to map the entire sky in order to understand the origins of the universe. The acronym SPHEREx stands for ‘Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer’. The spacecraft’s objective ..

Periodic Table Turns 150

The ‘Periodic Table of Elements’ or ‘The Table’ has turned 150 years old in 2019. The United Nations General Assembly and UNESCO have decided to observe 2019 as the “International Year of the Periodic Table of Chemical Elements (IYPT2019)”. History of the Periodic Table Antoine-Laurent de Lavoisier wrote the Traité Élémentaire de Chimie (Elementary Treatise ..

UNESCO officially launches International Year of Period Table of Chemical Elements

On January 29, UNESCO official launched the International Year of the Period Table of Chemical Elements (IYPT-2019) at its headquarters in Paris to raise awareness of chemistry and its applications for sustainable development. The year 2019 also marks the 150th anniversary of its creation by Russian scientist Dmitry Ivanovich Mendeleev. The aim of the year-long ..