1) Fridays for Future: The Fridays for Future (FFF) campaign is a youth-led and youth-organised global climate justice movement that started in 2018, when 15-year-old Greta Thunberg began a school strike for climate.
- These are Global Climate Strikes that focuses on providing a platform for the most affected people and areas (MAPA) to voice their demands.
2) Carbon Dating: Carbon-14 dating or radiocarbon dating is a widely-used method applied to establish the age of organic material, things that once lived.
- The dating method makes use of the fact that the isotope of carbon called C-14, which is radioactive, decays at a rate that is well known.
- The most abundant isotope of carbon in the atmosphere is carbon-12. A very small amount of carbon-14 is also present.
- Carbon-12 is stable and does not decay, while carbon-14 is radioactive.
- Carbon-14 reduces to one-half of itself in about 5,730 years. This is what is known as its ‘half-life’.
- Carbon dating cannot be used to determine the age of non-living things, like rocks,
3) Advanced Dvorak Technique (ADT): The Advanced Dvorak Technique (ADT) utilizes longwave-infrared, temperature measurements from geostationary satellites to estimate tropical cyclone (TC) intensity.
- During day time, images in the visible spectrum were used while at night, the ocean would be observed using infrared images.
- The Dvorak technique said to be one of the greatest meteorological innovations, has undergone several advancements since its inception.
4) Special Assistance to States for Capital Investment: The Government of India has launched a Scheme Special Assistance to States for Capital Investment for 2022-23.
- Under this Scheme, financial assistance is provided to the States Governments in the form of a 50-year interest-free loan for capital investment projects.
- Capital investment is the money spent on acquiring assets while revenue expenditure indicates daily operations expenses like salaries and pensions.
5) Swarm drone: Defence Ministry has unveiled the second edition of the ‘Mehar Baba’ swarm drone competition by the Indian Air Force (IAF) for Indian start-ups.
- Swarm drones consist of a number of drones controlled from the same station and coordinate with each other to complete the mission.
- It will help them develop a swarm drone-based system to detect foreign objects (even of sub-centimetre size) on aircraft operating surfaces.
- Indian Army has inducted Swarm drones into operational use.
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