updated Current Affairs (अद्यतन सामयिकी) WHAT IS NRC ?
Rajasthan first State to implement biofuel policy
Develop India Group current affairs very relevant for IAS and other State Administrative Exams
Famous Scientists and their Inventions List Famous Scientists and their Inventions List
Physics and Chemistry
Archimedes—Invention of the famous Archimedean law, discovery of the principles of lever and specific gravity.
Avogadro—An Italian scientists known for Avogadro’s hypothesis.
Bacquarrel—Radio-activity of uranium.
100 Most Famous Personalities in the World 100 Most Famous Personalities in the World
Akbar (1556–1605)—He was the greatest of Mughal Emperors of India, founder of the new religion ‘Din-i-Ilahi’.
Alberuni—A great historian who visited India in company with Mahmud Ghazni’s forces.
Amartya Sen Prof.—The recipient of Nobel Prize for Economics for the year 1998 Prof. Amartya Sen revolutionized world o..
Scientists observe celestial smash-up around nearby star Scientists observe celestial smash-up around nearby star
The apparent crash between two icy bodies each about 125 miles (200 km) wide occurred around a star called Fomalhaut, located a relatively close 25 light-years from Earth, that is about twice the mass and 17 times the luminosity of the sun, the researchers said. A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).
The two parties in this celestial smash-up may have ..
Live telecast of the solar eclipse has been arranged via Zoom, YouTube and Facebook Live telecast of the solar eclipse has been arranged via Zoom, YouTube and Facebook
An annular solar eclipse will be observed on June 21, 2020, from the northern parts of India, starting from 10:25 am. In this context, Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, an autonomous institute of the Department of Science & Technology (DST), Govt. of India has organised a special lecture on ‘The Science of Solar Eclipses’ by Prof. Dipankar Banerjee, Dire..
Study of optical properties of super-massive black-hole can provide clue to emission mechanism from its close vicinity Study of optical properties of super-massive black-hole can provide clue to emission mechanism from its close vicinity
Through 153 nights, 17 scientists from 9 countries in Europe and Asia including researchers from Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, an autonomous institution of the Department of Science and Technology (DST), Government of India took 2263 image frames and observed the changes in a very high energy gamma-ray emitting blazar ‘1ES 08..
Study showing stars of varied ages can co-exist in open clusters, provides clue to stellar evolution in the Milky Way Galaxy Study showing stars of varied ages can co-exist in open clusters, provides clue to stellar evolution in the Milky Way Galaxy
Stars in our Galaxy are formed from the molecular clouds present in the Galaxy. It is believed that the majority of stars in our Galaxy are formed in the star clusters making them important clues to understand the star formation mechanism. Open star clusters are a system of stars bound by gravity in which stars are born from the same molecular clouds. All the stars in a..
Newly discovered interaction between light and molecules can power optical devices Low reflection lenses, high reflection mirrors in devices such as better binoculars and telescopes, colour changing paints, and inks may now be powered by a newly discovered property of the interaction between light and molecules. Bengaluru based scientists have found that UV and blue light combination reversibly switches the system between 3D and 1D photonic structure --- a novel interaction that can help make tunable and effective optical devices.
In their quest to develop materials for tunab..
Five years of astronomical photography in visible, near-ultraviolet, and far-ultraviolet spectrum The satellite that detected the first extreme-UV rays in the Universe from the cosmic noon celebrated its 5th birthday today, September 28, 2020.
The Ultra-Violet Imaging Telescope, or the UVIT, is a remarkable 3-in-1 imaging telescope simultaneously observing in the visible, the near-ultraviolet (NUV), and the far-ultraviolet (FUV) spectrum.
Weighing all of 230 kg, the UVIT comprises of two separate telescopes. One of them works in the visible (320-5..
Workshop to mark 20 years of Himalayan Chandra Telescope to highlight the science it produced In the cold, dry desert of Ladakh, 4500 meters above the mean sea level, for two decades, the 2-m diameter optical-infrared Himalayan Chandra Telescope (HCT) at the Indian Astronomical Observatory (IAO) has been scanning the night sky in search of stellar explosions, comets, asteroids, and exo-planets.
The telescope remotely operated using a dedicated satellite communication link from the Centre for Research & Education in Science & Technology (CREST), Indian I..