Note4Students
From UPSC perspective, the following things are important :
Prelims level: Quarks
Mains level: Not Much
The Large Hadron Collider beauty (LHCb) experiment has observed three never-before-seen particles.
What is the discovery?
- CERN was investigating the slight differences between matter and antimatter by studying a type of particle called the “beauty quark”, or “b quark”.
- The three “exotic” additions — a new kind of “pentaquark” and the first-ever pair of “tetraquarks” — to the growing list of new hadrons were found.
- This discovery will help physicists better understand how quarks bind together into these composite particles.
What are Quarks?
- Quarks are elementary particles that come in six “flavours”: up, down, charm, strange, top, and bottom.
- They usually combine together in groups of twos and threes to form hadrons such as the protons and neutrons that make up atomic nuclei.
- But they can also combine into four-quark and five-quark particles, called tetraquarks and pentaquarks.
- These exotic hadrons were predicted by theorists about six decades ago — around the same time as conventional hadrons — but they have been observed by LHCb and other experiments only in the past 20 years.
What about tetraquarks and pentaquarks?
- Most exotic hadrons discovered in the past two decades are tetraquarks or pentaquarks.
- They contain a charm quark and a charm antiquark — with the remaining two or three quarks being an up, down or strange quark or their antiquarks.
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From UPSC perspective, the following things are important :
Prelims level: Fields Medal
Mains level: NA
Ukrainian mathematician Maryna Viazovska was named as one of four recipients of the prestigious Fields Medal, which is often described as the Nobel Prize in mathematics.
What is Fields Medal?
- The Fields Medal is awarded by the International Mathematical Union (IMU), an international non-governmental and non-profit scientific organisation.
- It is awarded every four years to one or more mathematicians under the age of 40 in recognition of “outstanding mathematical achievement for existing work and for the promise of future achievement”.
- The winners are announced at the International Congress of Mathematicians (ICM), which was supposed to be held in Russia this year, but was moved to Helsinki.
Belongings of the award
- The honour carries a physical medal of 14K gold, 63.5 mm in diameter and weighing 169 g, and with a unit price of approximately 5,500 Canadian dollars.
- There is also a cash award of CAD 15,000.
- The obverse of the medal is embossed with the head of Archimedes facing right, and some Latin quotes.
History of the Medal
- According to the IMU website, the 1924 ICM in Toronto adopted a resolution that at each conference, two gold medals would be awarded to recognise outstanding mathematical achievement.
- The Canadian mathematician Prof J C Fields, who was secretary of the 1924 Congress, later donated funds to establish the medals, which were named in his honour.
- In 1966, it was agreed that, in light of the great expansion of mathematical research, up to four medals could be awarded at each Congress.
Indian-origin winners
- Among the more than 60 mathematicians who have been awarded the Fields Medal since 1936, there are two of Indian origin.
- Akshay Venkatesh of the Institute for Advanced Study at Princeton, won in 2018, the last time the honour was announced.
- Manjul Bhargava of the Department of Mathematics at Princeton University was awarded in 2014.
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From UPSC perspective, the following things are important :
Prelims level: Large Hadron Collider (LHC)
Mains level: Not Much
The world’s most powerful particle collider, the Large Hadron Collider (LHC), will begin smashing protons into each other at unprecedented levels of energy beginning July 5.
What is the LHC?
- The Large Hadron Collider is a giant, complex machine built to study particles that are the smallest known building blocks of all things.
- Structurally, it is a 27-km-long track-loop buried 100 metres underground on the Swiss-French border.
- In its operational state, it fires two beams of protons almost at the speed of light in opposite directions inside a ring of superconducting electromagnets.
- The LHC’s second run (Run 2) began in 2015 and lasted till 2018. The second season of data taking produced five times more data than Run 1.
- The third run will see 20 times more collisions as compared to Run 1.
How does it work?
- The magnetic field created by the superconducting electromagnets keeps the protons in a tight beam and guides them along the way as they travel through beam pipes and finally collide.
- Just prior to collision, another type of magnet is used to ‘squeeze’ the particles closer together to increase the chances of collisions.
- The particles are so tiny that the task of making them collide is akin to firing two needles 10 km apart with such precision that they meet halfway.
Extreme conditions involved
- Since the LHC’s powerful electromagnets carry almost as much current as a bolt of lightning, they must be kept chilled.
- The LHC uses a distribution system of liquid helium to keep its critical components ultracold at minus 271.3 degrees Celsius, which is colder than interstellar space.
- Given these requirements, it is not easy to warm up or cool down the gigantic machine.
What is the latest upgrade?
- Three years after it shut down for maintenance and upgrades, the collider was switched back on this April.
- This is the LHC’s third run, and it will operate round-the-clock for four years at unprecedented energy levels of 13 tera electron volts.
Note: A TeV is 100 billion, or 10-to-the-power-of-12, electon volts. An electron volt is the energy given to an electron by accelerating it through 1 volt of electric potential difference.
Targets this year
- It now aims to be delivering 1.6 billion proton-proton collisions per second.
- The last time, the proton beams will be narrowed to less than 10 microns — a human hair is around 70 microns thick — to increase the collision rate.
- ATLAS is the largest general purpose particle detector experiment at the LHC.
- The Compact Muon Solenoid (CMS) experiment is one of the largest international scientific collaborations in history, with the same goals as ATLAS, but which uses a different magnet-system design.
Previous runs & ‘God Particle’ discovery
- Ten years ago, in 2012, scientists at CERN had announced to the world the discovery of the Higgs boson or the ‘God Particle’ during the LHC’s first run.
- The discovery concluded the decades-long quest for the ‘force-carrying’ subatomic particle, and proved the existence of the Higgs mechanism, a theory put forth in the mid-sixties.
- This led to Peter Higgs and his collaborator François Englert being awarded the Nobel Prize for physics in 2013.
- The Higgs boson and its related energy field are believed to have played a vital role in the creation
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From UPSC perspective, the following things are important :
Prelims level: Chenkurinji
Mains level: Not Much
This newscard is an excerpt from the original article published in The Hindu.
Chenkurinji
- Chenkurinji (Gluta travancorica) is a species endemic to the Agasthyamala Biosphere Reserve.
- Belonging to the Anacardiaceae family, the tree was once abundant in the hills on the southern parts of the Aryankavu Pass in Kerala’s Kollam district.
- The Shendurney Wildlife Sanctuary derives its name Chenkurinji (Gluta travancorica), a species endemic to the Agasthyamala Biosphere Reserve.
Why in news?
- It is very susceptible to climate change and the present condition of the species is quite bad with low regeneration performance.
- Though there are seemingly enough number of the tree, most are not productive, generating a negative trend in its population.
- The majority of the trees is old with poor flowering and fruiting rates.
- Though the flowering usually happens in January, of late, the species has reported a tendency to extend the process due to climate change.
Significance of Chenkurinji
- It is reported to have medicinal properties and is used to lower blood pressure and treat arthritis.
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From UPSC perspective, the following things are important :
Prelims level: Rampa Rebellion
Mains level: Major tribal uprisings in freedom struggle
Hundred years ago, in August 1922 the “Rampa Rebellion” or “Manyam Rebellion” took place in the forests of the Godavari Agency in the Madras Presidency.
Rampa Rebellion
- The Rampa Rebellion of 1922, also known as the Manyam Rebellion, was a tribal uprising led by Alluri Sitarama Raju in Godavari Agency.
- It began in August 1922 and lasted until the capture and killing of Raju in May 1924.
- Forced labour, embargoes on collecting minor forest produce and bans on tribal agriculture practices led to severe distress among the Koyas in the area.
- Sitarama Raju did not belong to the tribal community, but understood the restrictions that the British colonial administration placed on the tribal way of life.
Background of the revolt
- The Rampa administrative area comprised around 1,800 square km and had a mostly tribal population of approximately 28,000.
- They had traditionally been able to support their food requirements through the use, in particular, of the podu system, whereby each year some areas of jungle forest were burned to clear land for cultivation.
- The British Raj authorities had wanted to improve the economic usefulness of lands in Godavari Agency, an area that was noted for the prevalence of malaria and blackwater fever.
- The traditional cultivation methods were greatly hindered when the authorities took control of the forests, mostly for commercial purposes such as produce for building railways and ships.
- This was done regardless of the needs of the tribal people.
Why did people revolt?
- The tribal people of the forested hills, who now faced starvation had long felt that the legal system favoured the muttadar (estate landowners) and merchants.
- This had also resulted in the earlier Rampa Rebellion of 1879.
- Now they objected also to the Raj laws and continued actions that hindered their economic position and meant they had to find alternate livelihood.
- They objected to attempts at that time to use them as forced labour in the construction of a road in the area.
Role of Raju
- Raju was a charismatic sanyasin, believed by many tribal people to possess magical abilities and to have an almost messianic status.
- He saw the overthrow of colonial rule in terms similar to a millenarian event and he harnessed the discontent of the tribal people to support his anti-colonial zeal.
Course of revolt
- Alluri Sitarama Raju, along with 500 tribal people, attacked the police stations of Chintapalli, Krishnadevipeta and Rajavommangi.
- They walked away with 26 police carbine rifles and 2,500 rounds of ammunition.
- Legend has it that Alluri himself would forewarn the British officers of an imminent attack and would challenge them to stop him with the superior resources that they had at hand.
- He was finally captured, tied to a tree and shot dead.
Try this PYQ:
Q. With reference to the history of India, “Ulgulan” or the Great Tumult is the description of which of the following event?
(a) The Revolt of 1857
(b) The Mappila Rebellion of 1921
(c) The Indigo Revolt of 1859-60
(d) Birsa Munda’s Revolt of 1899-1900
Post your answers here.
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From UPSC perspective, the following things are important :
Prelims level: MADS27
Mains level: Not Much
Researchers led by those from the National Centre of Biological Sciences, Tata Institute of Fundamental Research, Bengaluru (NCBS-TIFR), have found a new pathway that regulates nitrate absorption in plants.
Nitrogen in plant nutrition
- Nitrogen is one of the most important macronutrients needed for development of a plant.
- It is a part of chlorophyll, amino acids and nucleic acids, among others.
- It is mostly sourced from the soil where it is mainly absorbed in the form of nitrates and ammonium by the roots.
- Nitrates also play a role in controlling genome-wide gene expression that in turn regulates root system architecture, flowering time, leaf development, etc.
- Thus, while a lot of action takes place in the roots to absorb and convert nitrogen into useful nitrates, the absorbed nitrates in turn regulate plant development apart from being useful as a macronutrient.
What is MADS27?
- The gene MADS27, which regulates nitrate absorption, root development and stress tolerance, is activated by the micro-RNA, miR444, therefore offers a way to control these properties of the plant.
- The researchers studied this mechanism in both rice (monocot) and tobacco (dicot) plants.
Regulatory switches
- In addition to this route, several gene regulatory switches that regulate nitrate absorption and root development, such as the micro-RNA, miR444, are known in monocot plants, such as rice.
- The micro-RNA ‘miR444’ is specific to monocots.
- When this is not made, its target, MADS27, is produced in higher abundance, and it improves biosynthesis and transport of the hormone auxin, which is key for root development and its branching.
- This regulatory miR444 switch is known to turn off at least five genes called MADS box transcription factor genes.
- The speciality of the MADS box transcription factors is that they function like switch boxes of their own.
- They bind to their favourite specific DNA sequences and they switch the neighbouring genes “on.”
Why is the discovery important?
- Presence of nitrates is important for the plant development and also for grain production.
- However, the overuse of nitrates in fertilizers, for instance, can lead to the dumping of nitrates in the soil which leads to accumulation of nitrates in water and soil.
- This accumulation adds to soil and water pollution and increased contribution to greenhouse gases.
- Also, since the whole process of nitrate absorption takes place in the roots, a well-developed root system is needed for this to take place optimally.
- At one level, it is known that the hormone auxin is responsible for well-developed roots across all plants.
- A number of genes are known to help with auxin production, improved nitrate transport and assimilation in plants.
Significance of MADS27
- The MADS27 transcription factor has a three-pronged effect on the plant.
- First, it regulates nitrate absorption by switching “on” proteins involved in this process.
- Second, it leads to better development of the roots by regulating auxin hormone production and transport.
- Finally, and somewhat surprisingly to the researchers, it helps in the abiotic stress tolerance by keeping the main stress player proteins “on.”
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From UPSC perspective, the following things are important :
Prelims level: GI indication
Mains level: Not Much
The Kai Chutney made from Red Ants by the tribals of Mayurbhanj district in Odisha are seeking a Geographical Indications (GI) tag.
Ant Chutney
- Despite this, weaver ants are popular among the people, mostly of the tribes,
- This food item, rich in proteins, calcium, zinc, vitamin B-12, iron, magnesium, potassium, sodium, copper, fibre and 18 amino acids, is known to boost the immune system and keep diseases at bay.
- Applied under food category, the GI tag will help develop a structured hygiene protocol in the preparation of Kai chutney for standard wider use.
- Geographical Indications labels enhance the reputation and value of local products and support local businesses.
How is the Chutney prepared?
- Weaver ants, Oecophylla smaragdina, are abundantly found in Mayurbhanj throughout the year.
- They make nests with leaves of host trees.
- The chutney is prepared by mixing and grinding salt, ginger, garlic and chilly and is sold by tribal people in rural markets.
Answer this PYQ in the comment box:
Q.Which of the following has/have been accorded ‘Geographical Indication’ status?
- Banaras Brocades and Sarees
- Rajasthani Daal-Bati-Churma
- Tirupathi Laddu
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Post your answers here.
Back2Basics: Geographical Indication
- A GI is a sign used on products that have a specific geographical origin and possess qualities or a reputation that are due to that origin.
- Nodal Agency: Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry
- India, as a member of the World Trade Organization (WTO), enacted the Geographical Indications of Goods (Registration and Protection) Act, 1999 w.e.f. September 2003.
- GIs have been defined under Article 22 (1) of the WTO Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) Agreement.
- GI is granted for a term of 10 years in India. As of today, more than 300 GI tags has been allocated so far in India (*Wikipedia).
- The tag stands valid for 10 years.
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From UPSC perspective, the following things are important :
Prelims level: Autonomous Flying Wing Technology Demonstrator
Mains level: India's defence exports, Atmanirbharta in defence
The Defence Research and Development Organisation (DRDO) has successfully carried out the maiden test flight of a new Unmanned Aerial Vehicle (UAV), an autonomous Flying Wing Technology Demonstrator, from the Aeronautical Test Range, Chitradurga, Karnataka.
About the Indigenous Drone
- The Unmanned Aerial Vehicle (UAV) is powered by a small turbofan engine.
- It is developed under unmanned combat aerial vehicle (UCAV) programme.
- It is designed and developed by Aeronautical Development Establishment (ADE), Bengaluru, a premier research laboratory of DRDO.
- The engine is Russian TRDD-50MT originally designed for cruise missiles.
- A small turbo fan engine is being developed indigenously for meeting the requirement.
Various initiatives by DRDO
- DRDO is in the process of developing UAVs of different classes to met the requirements of the armed forces.
- Rustom-2, the indigenous Medium Altitude Long Endurance (MALE) UAV under development, had crossed a milestone by reaching an altitude of 25,000 feet and an endurance of 10 hours.
- It is now being designed to reach an altitude of 30,000 feet and 18 hours endurance.
- An Unmanned Combat Aerial Vehicle is also on the drawing board.
Significance of the development
- Operating in a fully autonomous mode, the aircraft exhibited a perfect flight, including take-off, way point navigation and a smooth touchdown.
- This flight marks a major milestone in terms of proving critical technologies towards the development of future unmanned aircraft.
- This is a significant step towards self-reliance in strategic defence technologies.
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From UPSC perspective, the following things are important :
Prelims level: Rath Yatra
Mains level: NA
Lakhs of devotees thronged the coastal town of Puri town to witness the annual Rath Yatra with three decorated chariots of sibling deities Lord Balabhadra, Lord Jagannath and Devi Subhadra towed in front of the 12th century Shree Jagannath Temple.
About Jagannath Rath Yatra
- Ratha Jatra, the Festival of Chariots of Lord Jagannatha is celebrated every year at Puri, the temple town in Orissa, on the east coast of India.
- It involves a public procession with a chariot with deities Jagannath (Vishnu avatar), BalaBhadra (his brother), Subhadra (his sister) and Sudarshana Chakra (his weapon) on a ratha, a wooden deula-shaped chariot.
- The huge, colourfully decorated chariots, are drawn by hundreds and thousands of devotees on the bada danda, the grand avenue to the Gundicha temple, some two miles away to the North.
- It attracts over a million Hindu pilgrims who join the procession each year.
Back2Basics: Puri Temple Architecture
- Jagannath Temple is a very big temple and covers an area of 37000m2. The height of the outer wall is 6.1m.
- It is surrounded by a high fortified wall 6.1 m high is known as Meghanada Pacheri.
- The main portion of the temple is also surrounded by a wall known as Kurma Bheda.
- The temple is built in Rekha Deula style and has four distinct sectional structures, namely –
- Deula, Vimana or Garba griha (Sanctum sanctorum) where the triad deities are lodged on the ratnavedi (Throne of Pearls)
- Mukhashala (Frontal porch)
- Nata mandir/Natamandapa, which is also known as the Jagamohan (Audience Hall/Dancing Hall), and
- Bhoga Mandapa (Offerings Hall)
Try this question from CSP 2019:
Q.Building ‘Kalyaana Mandapas’ was a notable feature in the temple construction in the kingdom of-
(a) Chalukya (b) Chandela (c) Rashtrakuta (d) Vijayanagara
Post your answers here.
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From UPSC perspective, the following things are important :
Prelims level: POEM
Mains level: Not Much
The ISRO has launched three Singaporean satellites in precise orbit through the PSLV Orbital Experimental Module or ‘POEM’.
What is POEM?
- The POEM is a platform that will help perform in-orbit experiments using the final, and otherwise discarded, stage of ISRO’s workhorse rocket, the Polar Satellite Launch Vehicle (PSLV).
- The PSLV is a four-stage rocket where the first three spent stages fall back into the ocean, and the final stage (PS4) — after launching the satellite into orbit — ends up as space junk.
- However, in PSLV-C53 mission, the spent final stage will be utilised as a “stabilised platform” to perform experiments.
- POEM is carrying six payloads, including two from Indian space start-ups Digantara and Dhruva Space.
Features of POEM
- POEM has a dedicated Navigation Guidance and Control (NGC) system for attitude stabilisation, which stands for controlling the orientation of any aerospace vehicle within permitted limits.
- The NGC will act as the platform’s brain to stabilize it with specified accuracy.
- POEM will derive its power from solar panels mounted around the PS4 tank, and a Li-Ion battery.
- It will navigate using four sun sensors, a magnetometer, gyros & NavIC.
- It carries dedicated control thrusters using Helium gas storage. It is enabled with a telecomm and feature.
Has ISRO repurposed and used PS4 rocket junk earlier?
- The Indian space agency first demonstrated the capability of using PSLV-C44 as an orbital platform in 2019.
- It injected Microsat-R and Kalamsat-V2 satellites into their designated orbits.
- The fourth stage in that mission was kept alive as an orbital platform for space-based experiments.
- While in that mission, the fourth stage had Li-Ion batteries, solar panels are an addition this time.
- The latest repurposing and upgrade of the fourth stage of the PSLV rocket involves the stabilization of the orbital platform.
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From UPSC perspective, the following things are important :
Prelims level: CAPSTONE satellite
Mains level: Not Much
NASA has launched CAPSTONE, a microwave oven-sized CubeSat weighing just 55 pounds (25 kg).
What is CAPSTONE?
- CAPSTONE, short for Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment, is designed to test a unique, elliptical lunar orbit.
- It aims to help reduce risk for future spacecraft by validating innovative navigation technologies, and by verifying the dynamics of the halo-shaped orbit.
Its launch
- It is heading toward an orbit intended in the future for Gateway, a Moon-orbiting outpost that is part of NASA’s Artemis program.
- The orbit is known as a near-rectilinear halo orbit (NRHO).
- It is significantly elongated, and is located at a precise balance point in the gravities of Earth and the Moon.
- This offers stability for long-term missions like Gateway, NASA said on its website.
Mission details
- CAPSTONE will enter NRHO, where it will fly within 1,600 km of the Moon’s North Pole on its near pass and 70,000 km from the South Pole at its farthest.
- The spacecraft will repeat the cycle every six-and-a-half days and maintain this orbit for at least six months to study dynamics.
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From UPSC perspective, the following things are important :
Prelims level: Salmonella Typhi
Mains level: Not Much
The bacteria causing typhoid fever is becoming increasingly resistant to some of the most important antibiotics for human health.
What is the news?
- The largest genome analysis of Salmonella Typhi (S. Typhi) also shows that resistant strains — almost all originating in South Asia — have spread to other countries nearly 200 times since 1990.
- The researchers noted that typhoid fever is a global public health concern, causing 11 million infections and more than 1,00,000 deaths per year.
- Antibiotics can be used to successfully treat typhoid fever infections, but their effectiveness is threatened by the emergence of resistant S. Typhi strains.
What is Salmonella Typhi?
- Salmonella Typhi (S. Typhi) are bacteria that infect the intestinal tract and the blood.
- It is usually spread through contaminated food or water.
- Once S. Typhi bacteria are eaten or drunk, they multiply and spread into the bloodstream.
- The disease is referred to as typhoid fever. S. Paratyphi bacteria cause a similar, but milder illness, which comes under the same title.
- Paratyphoid has a shorter duration, generally, than typhoid.
- Typhi and S. Paratyphi are common in many developing countries where sewage and water treatment systems are poor.
How does it spread?
- Salmonella Typhi lives only in humans.
- Persons with typhoid fever carry the bacteria in their bloodstream and intestinal tract.
- Symptoms include prolonged high fever, fatigue, headache, nausea, abdominal pain, and constipation or diarrhoea.
- Some patients may have a rash. Severe cases may lead to serious complications or even death.
- Typhoid fever can be confirmed through blood testing.
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From UPSC perspective, the following things are important :
Prelims level: Corals, Coral Bleaching
Mains level: Not Much
Scientists have recorded four species of corals for the first time from Indian waters. These new species of azooxanthellate corals were found from the waters off the Andaman and Nicobar Islands.
What are Azooxanthellate Corals?
- The azooxanthellate corals are a group of corals that do not contain zooxanthellae and derive nourishment not from the sun but from capturing different forms of planktons.
- They are deep-sea representatives with the majority of species being reported from depths between 200 metres and 1,000 metres.
- They are also reported from shallow waters unlike zooxanthellate corals that are restricted to shallow waters.
Which are the news species found?
- Truncatoflabellum crassum, T. incrustatum, T. aculeatum, and T. irregulare under the family Flabellidae were previously found in Japan, the Philippines and Australian waters.
- Only T. crassum was reported with the range of Indo-West Pacific distribution.
Significance of the discovery
- Most studies of hard corals in India have been concentrated on reef-building corals while much is not known about non-reef-building corals.
- These new species enhance our knowledge about non-reef-building solitary corals.
Back2Basics: Coral Reefs
- Corals are marine invertebrates or animals not possessing a spine.
- Each coral is called a polyp and thousands of such polyps live together to form a colony, which grows when polyps multiply to make copies of themselves.
- Australia’s Great Barrier Reef is the world’s largest reef system stretching across 2,300 km.
- It hosts 400 different types of coral, gives shelter to 1,500 species of fish and 4,000 types of mollusc.
- Corals are of two types — hard coral and soft coral:
- Hard corals, also called hermatypic or ‘reef building’ corals extract calcium carbonate (also found in limestone) from the seawater to build hard, white coral exoskeletons.
- Soft coral polyps, however, borrow their appearance from plants, attach themselves to such skeletons and older skeletons built by their ancestors. Soft corals also add their own skeletons to the hard structure over the years and these growing multiplying structures gradually form coral reefs. They are the largest living structures on the planet.
How do they feed themselves?
- Corals share a symbiotic relationship with single-celled algae called zooxanthellae.
- The algae provides the coral with food and nutrients, which they make through photosynthesis, using the sun’s light.
- In turn, the corals give the algae a home and key nutrients.
- The zooxanthellae also give corals their bright colour.
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From UPSC perspective, the following things are important :
Prelims level: Sao Joao Festival
Mains level: Not Much
As in every monsoon, Catholics in Goa will celebrate Sao Joao, the feast of St John the Baptist.
Note: The name typically sounds like a North-Eastern festival, but it is not.
What is Sao Joao and where is it celebrated in Goa?
- In Goa, Catholics celebrate all the feasts of the Roman Catholic Church, which include the feast of St John the Baptist on June 24.
- John the Baptist is the person who he had baptised Jesus Christ on the river Jordan.
- Traditionally, there are spirited Sao Joao festivities in the villages of Cortalim in South Goa and Harmal, Baga, Siolim and Terekhol in North Goa.
- However, over the years, pool parties and private Sao Joao parties in Goa have been a “complete package of merriment and joy” for tourists.
Course of celebration
- The celebrations will include revellers sporting crowns made of fruits, flowers and leaves, and the major draw of the feast is the water bodies – wells, ponds, fountains, rivers – in which the revellers take the “leap of joy”.
- Enjoyed by children and adults alike, the festival also includes playing the traditional gumott (percussion instrument), a boat festival, servings of feni, and a place of pride for new sons-in-law.
What does jumping into water bodies symbolise?
- The youngsters in Goa celebrate this occasion with revelry and perform daredevil feats, by jumping into over flowing wells or rivulets.
- The boys are found merrily jumping into the water to commemorate the leap of joy, which St John is said to have taken in the womb of his mother St Elizabeth when virgin Mary visited her.
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From UPSC perspective, the following things are important :
Prelims level: Green mobility
Mains level: NA
Mo Bus, the bus service of Odisha’s Capital Region Urban Transport (CRUT) authority, has been recognized by the United Nations as one of 10 global recipients of its annual Public Service Awards for 2022.
Mo Bus service
- The Mo Bus service was launched on November 6, 2018.
- It aimed to ensure transformation of the urban public transport scenario in the city and its hinterland through use of smart technology, service benchmarking and customer satisfaction.
- The buses are designed to integrate smart technologies such as free on-board Wi-Fi service, digital announcements, surveillance cameras, and electronic ticketing.
- CRUT says that to increase women’s participation in the workforce, and to make women riders feel safer, it is committed to ensuring that 50% of Mo Bus Guides (conductors) are women.
What is the recent award?
- The public transport service has been recognised for its role in “promoting gender-responsive public services to achieve the SDGs (Sustainable Development Goals)”.
- The “impact” is that 57 per cent of the city’s commuters now use the Mo Bus, the UN said.
- Mo E-Ride is estimated to reduce pollution by 30-50 per cent.
About UN Public Service Award
- The UN describes its Public Service Awards as the “most prestigious international recognition of excellence in public service”.
- The first Awards ceremony was held in 2003, and the UN has since received “an increasing number of submissions from all around the world”.
- It is intended to reward the creative achievements and contributions of public service institutions that lead to a more effective and responsive public administration in countries worldwide.
- Through an annual competition, the UN Public Service Awards promotes the role, professionalism and visibility of public service.
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From UPSC perspective, the following things are important :
Prelims level: Summer Solstice
Mains level: NA
Yesterday, June 21 was the day of the summer solstice in the northern hemisphere.
What is Summer Solstice?
- Solstice means “sun stands still” in Latin.
- The longest day of 2021 for those living north of the Equator is June 21.
- This day is characterized by a greater amount of energy received from the sun.
- In technical terms, this day is referred to as the summer solstice, the longest day of the summer season.
- It occurs when the sun is directly over the Tropic of Cancer, or more specifically right over 23.5-degree north latitude.
The Southern Hemisphere receives most sunlight on December 21, 22 or 23 when the northern hemisphere has its longest nights– or the winter solstice.
Why do we have summer solstice?
- Since Earth rotates on its axis, the Northern Hemisphere gets more direct sunlight between March and September over the course of a day.
- This also means people living in the Northern Hemisphere experience summer during this time.
- The rest of the year, the Southern Hemisphere gets more sunlight.
- During the solstice, the Earth’s axis — around which the planet spins, completing one turn each day — is tilted in a way that the North Pole is tipped towards the sun and the South Pole is away from it.
Answer this PYQ in the comment box:
Q.On 21st June, the Sun (CSP 2019):
(a) Does not set below the horizon at the Arctic Circle
(b) Does not set below the horizon at Antarctic Circle
(c) Shines vertically overhead at noon on the Equator
(d) Shines vertically overhead at the Tropic of Capricorn
Post your answers here.
Some interesting facts
- During the June solstice compared to any other time of the year, the North Pole is tipped more directly toward the sun, and the south pole is tipped more directly away from the sun.
- As a result, all locations north of the equator see days longer than 12 hours and all locations south see days shorter than 12 hours.
- The sun’s path across the sky is curved—NOT a straight line on the summer solstice.
- Based on Earth’s current orbit, the summer solstice date rotates between June 20, 21 and 22 and is not fixed since it depends on the physics of our solar system and not on human calendar.
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From UPSC perspective, the following things are important :
Prelims level: BRICS Plus
Mains level: Chinese push for expansion of BRICS
Chinese President Xi Jinping will host a virtual summit of the leaders of the BRICS countries. PM Modi is expected to join.
Why in news?
- China is keen for the grouping to explore expansion and include new developing country members.
- Under the “BRICS Plus” format, the forthcoming summit is also expected to be attended by leaders of invited emerging countries.
What is BRICS?
- BRICS is an acronym for the grouping of the world’s leading emerging economies, namely Brazil, Russia, India, China and South Africa.
- The BRICS Leaders’ Summit has convened annually. It does not exist in form of an organization, but it is an annual summit between the supreme leaders of five nations.
Its inception
- On November 30, 2001, Jim O’Neill, a British economist who was then chairman of Goldman Sachs Asset Management, coined the term ‘BRIC’ to describe the four emerging economies of Brazil, Russia, India, and China.
- He made a case for BRIC on the basis of econometric analyses projecting that the four economies would individually and collectively occupy far greater economic space and become among the world’s largest economies in the next 50 years or so.
How it has formed?
- The grouping was formalized during the first meeting of BRIC Foreign Ministers on the margins of the UNGA in New York in September 2006.
- The first BRIC Summit took place in 2009 in the Russian Federation and focused on issues such as reform of the global financial architecture.
Who are the members?
- South Africa was invited to join BRIC in December 2010, after which the group adopted the acronym BRICS. South Africa subsequently attended the Third BRICS Summit in Sanya, China, in March 2011.
- The Chairmanship of the forum is rotated annually among the members, in accordance with the acronym B-R-I-C-S.
- The importance of BRICS is self-evident: It represents 42% of the world’s population, 30% of the land area, 24% of global GDP and 16% of international trade.
- The five BRICS countries are also members of G-20.
Also read
[Burning Issue] BRICS and its relevance in today’s world
Back2Basics: BRICS Plus
- The BRICS outreach to Africa began at the last summit hosted by South Africa, in 2013. It has picked up momentum now but African leaders want more.
- They need big loans from the New Development Bank (NDB) for their infrastructure projects.
- China introduced the “BRICS Plus” format at the Xiamen summit last year by inviting a few countries from different regions.
- South Africa emulated it, arranging the attendance of top-level representation of five nations of its choice: Argentina, Jamaica, Turkey, Indonesia and Egypt.
- The precise role of “BRICS Plus” countries will take time to evolve but an immediate benefit is the immense opportunities it provides for networking among leaders.
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From UPSC perspective, the following things are important :
Prelims level: Lightening and Thunderstorms
Mains level: Disaster management
At least 70 people died in lightning strikes across Uttar Pradesh, Madhya Pradesh and Rajasthan.
What is lightning?
- Scientifically, lightning is a rapid and massive discharge of electricity in the atmosphere some of which is directed towards earth.
- The discharges are generated in giant moisture-bearing clouds that are 10-12 km tall.
- The base of these clouds typically lie within 1-2 km of the Earth’s surface, while the top is 12-13 km away.
- Temperatures in the top of these clouds are in the range of –35° to –45°C.
Its formation
- As water vapour moves upward in the cloud, the falling temperature causes it to condense.
- As they move to temperatures below 0°C, the water droplets change into small ice crystals.
- They continue to move up, gathering mass until they are so heavy that they start to fall to Earth.
- This leads to a system in which, simultaneously, smaller ice crystals are moving up and bigger crystals are coming down.
- Collisions follow and trigger the release of electrons, a process that is very similar to the generation of sparks of electricity.
- As the moving free electrons cause more collisions and more electrons, a chain reaction ensues.
- This process results in a situation in which the top layer of the cloud gets positively charged, while the middle layer is negatively charged.
- The electrical potential difference between the two layers is huge, of the order of a billion to 10 billion volts.
- In very little time, a massive current, of the order of 100,000 to a million amperes, starts to flow between the layers.
Types of lightning
- Broadly, there are three forms of lightning:
- Inter-cloud
- Intra-cloud
- Cloud-to-ground
- It is the cloud-to-ground form of lightning that kills humans, as well as animals and livestock, and can substantially damage property.
- While the Earth is a good conductor of electricity, it is electrically neutral.
- However, in comparison to the middle layer of the cloud, it becomes positively charged.
- As a result, about 15%-20% of the current gets directed towards the Earth as well.
- It is this flow of current that results in damage to life and property on Earth.
How intensely does it strike?
- A typical lightning flash is about 300 million volts and 30,000 amps.
- To put it in perspective, household current is 120 volts and 15 amps.
- A flash of lightning is enough to light a 100-watt incandescent bulb for about three months.
Why does lightning kill so many people in India?
- The reason for the high number of deaths is due to people being caught unawares and more than 70% of fatalities happened due to people standing under isolated tall trees.
- About 25 per cent of the people were struck in the open.
- Also, lightning is the direct promulgation of climate change extremities.
Mitigating lightning incidents
- Lightning is not classified as a natural disaster in India.
- But recent efforts have resulted in the setting up of an early warning system that is already saving many lives.
- More than 96% of lightning deaths happen in rural areas.
- As such, most of the mitigation and public awareness programmes need to focus on these communities.
- Lightning protection devices are fairly unsophisticated and low-cost. Yet, their deployment in the rural areas, as of now, is extremely low.
- States are being encouraged to prepare and implement lightning action plans, on the lines of heat action plans.
- An international centre for excellence on lightning research to boost detection and early warning systems is also in the process of being set up.
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From UPSC perspective, the following things are important :
Prelims level: Private Captive Networks
Mains level: 5G Rollout
The Cellular Operators’ Association of India (COAI) wrote a letter urging the government against allotting 5G spectrum to private captive networks, claiming that it will diminish their revenue to the point where offering 5G will pointless.
What is a Private Captive 5G Network?
- A private captive 5G network is basically a network set up by a private entity for the use of just one organisation.
- It is similar to a captive coal mine in that the 5G service offered by this captive network will only be utilised by the enterprise concerned, and no one else.
Why are telecom providers against it?
- The COAI’s argument is that enterprises are the biggest users of 5G networks.
- If private entities are allowed to offer captive networks to enterprises, the TSPs (telecom service providers) retail revenues will fall.
- COAI implied that there is no great demand for 5G right now as “the needs of voice and data of the entire nation is being adequately met by the TSPs through their 4G networks today”.
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From UPSC perspective, the following things are important :
Prelims level: Enemy Property
Mains level: Not Much
The Central Bureau of Investigation (CBI) has registered some cases on allegations that huge losses to the exchequer was caused by leasing out prime-value land under the Custodian of Enemy Property for India (CEPI) on forged documents.
Why in news?
- Hectares of commercial land located in Uttar Pradesh were leased out at nominal rates in favour of the lessees through manipulation.
What is “Enemy Property”?
- In the wake of the India-Pakistan wars of 1965 and 1971, there was the migration of people from India to Pakistan.
- Under the Defence of India Rules framed under The Defence of India Act, 1962, the Government of India took over the properties and companies of those who took Pakistani nationality.
- These “enemy properties” were vested by the central government in the Custodian of Enemy Property for India.
- The same was done for property left behind by those who went to China after the 1962 Sino-Indian war.
- The Tashkent Declaration of January 10, 1966 included a clause that said India and Pakistan would discuss the return of the property and assets taken over by either side in connection with the conflict.
- However, the Government of Pakistan disposed of all such properties in their country in the year 1971 itself.
Dealing with enemy property
- The Enemy Property Act, enacted in 1968, provided for the continuous vesting of enemy property in the Custodian of Enemy Property for India (CEPI).
- The central government, through the Custodian, is in possession of enemy properties spread across many states in the country.
- Some movable properties too, are categorised as enemy properties.
- In 2017, Parliament passed The Enemy Property (Amendment and Validation) Bill, 2016, which amended The Enemy Property Act, 1968, and The Public Premises (Eviction of Unauthorised Occupants) Act, 1971.
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