APPSC Prelims and Mains Notes, APPSC Test Series
Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that originated from living organisms. An age could be estimated by measuring the amount of carbon-14 present in the sample and comparing this against an internationally used reference standard. Radiocarbon, or carbon 14, is an isotope of the element carbon that is unstable … Read more
To describe the phenomena related to magnets, lines are used to depict the force existing in the area surrounding the magnet. These lines are called the magnetic lines of force. These lines do not exist actually, but are imaginary lines that are used to illustrate and describe the pattern of the magnetic field. As shown … Read more
Ultraviolet (UV) disinfection systems contact the treated secondary wastewater with UV light bulbs that are encased in clear housings. The UV light kills pathogenic organisms by using a germicidal photochemical wavelength. Unlike chlorination, UV leaves no residual in the wastewater with which to be concerned. Plants that use UV must either have dual UV systems … Read more
Certain basic nutrients are required to maintain good health. The energy yielding nutrients are proteins, carbohydrates and fats. Dietary fibbers, vitamins and minerals such as calcium, iron, chloride, magnesium, phosphorus, potassium and sodium are other essential supplements. Apart from these, certain micronutrients such as chromium, copper, fluoride, iodine, manganese, molybdenum, selenium, sulpur, zinc and so … Read more
Contribution of Indian Scientist: Scientist Achievement Homi Jehangir Baba Father of Indian Nuclear Programme, Carried out first nuclear test 1974, Atomic energy establishment was renamed Bhabha Atomic research centre. Venkatraman Ramakrishna Indian origin biologist cum scientist won nobel prize in 2009 in chemistry. He pioneered in the studies of the structure and function of … Read more
. A Blockchain is a digital, immutable, distributed ledger that chronologically records transactions in near real time. The prerequisite for each subsequent transaction to be added to the ledger is the respective consensus of the network participants (called nodes), thereby creating a continuous mechanism of control regarding manipulation, errors, and data quality.” Simply put, Blockchain … Read more
Rocket engine needs enormous amount of thrust to escape Earth’s gravitational pull. However the chemicals used for engines are Hydrogen and Oxygen (Hydrogen used as a fuel, while Oxygen as a oxidiser) that produces a good thrust, found in Earth in the form of gas. Carrying hydrogen and oxygen in their gaseous form will require … Read more
Saras Mk2 It is a light transport aircraft which is indigenously developed by National Aerospace Laboratory (NAL) The 19-seater aircraft, developed with a target cost of ₹50 crore, is at least 20-25% lower in cost than other aircraft in the similar category. pitching or the government’s UDAN (Ude Desh Ka Aam Nagrik), since it has … Read more
INS Viraat is the longest serving warship in the world. It hold the Guinness Books of record INS Viraat was first commissioned into the British Royal Navy as the HMS Hermes on November 18, 1959, 15 years after she was laid down in June, 1944. She served as the flagship of the Royal Navy’s task … Read more
The vision of the programme is centred on three key areas Digital infrastructure as Utility to Every Citizen Governance and services on demand Digital empowerment of citizens Digital Infrastructure as Utility to Every Citizen Availability of high speed internet as a core utility for delivery of services to citizens. Cradle to grave digital identity that … Read more