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  • In news: Dadabhai Naoroji (1825-1917)

    dadabhai

    Central Idea

    • Dadabhai Naoroji, the first Indian member of the British Parliament, played a significant role in India’s anti-colonial struggle.
    • His scholarly work exposed the economic exploitation of India under British rule, emphasizing the drain theory.

    Who was Dadabhai Naoroji?

    • Early Life: Naoroji was born in Navsari, Gujarat, into a Parsi Zoroastrian family. He received his education at the Elphinstone Institute School.
    • Social Reforms: He founded the Rahnumai Mazdayasan Sabha and the Rast Goftar newspaper to promote Parsi social reforms and clarify Zoroastrian concepts.
    • Political Activism: Naoroji co-founded the London Indian Society and the East India Association, advocating for Indian political rights and countering negative stereotypes.
    • Indian National Congress: He played a crucial role in the Indian National Congress and served as its President on three occasions.
    • British Parliament: Naoroji became the first Indian MP in the British House of Commons, representing Finsbury Central from 1892 to 1895.
    • Economic Critique: His book “Poverty and Un-British Rule in India” exposed the drain of wealth from India to Britain and its impact on India’s development.

    His proposition of Drain Theory and Poverty

    • Naoroji’s Drain Theory: He identified six factors contributing to the wealth drain, including foreign governance, lack of immigration, and unequal employment opportunities.
    • Impact of Drain: Naoroji estimated a drain of 200-300 million pounds from India to Britain, which hindered India’s economic progress.
    • Railways and Tribute: Naoroji argued that India paid for services like railways, but the profits were drained out of the country, leading to economic imbalances.
    • Exploitative Trade: British workers in India were encouraged to repatriate their earnings, and Indian goods were undervalued, allowing for economic exploitation.

    Major works

    • Started the Rast Goftar Anglo-Gujarati Newspaper in 1854.
    • The manners and customs of the Parsees (Bombay, 1864)
    • The European and Asiatic races (London, 1866)
    • Admission of educated natives into the Indian Civil Service (London, 1868)
    • The wants and means of India (London, 1876)
    • Condition of India (Madras, 1882)

    Legacy and Views

    • Naoroji’s Significance: He is considered a crucial figure in India’s independence movement, advocating for responsible government and Indian autonomy.
    • Influence on Gandhi: Mahatma Gandhi was influenced by Naoroji’s writings and recognized him as a father figure for the Indian people.
    • Admirations: Bal Gangadhar Tilak praised Naoroji’s leadership and stated that Indians would unanimously elect him if given the chance.
    • Recognition: Naoroji’s contributions are honoured through various roads, streets, and awards named after him.

  • Evidence of High Rainfall during Deccan Traps Volcanism

    deccan

    Central Idea

    • A team of scientists from IIT Kharagpur has discovered evidence of exceptionally high annual rainfall during the volcanic activity that formed the Deccan Traps in India around 66 million years ago.
    • Using a new technique called Nanoscale Secondary Ion Mass Spectrometry (NanoSIMS), the researchers analyzed the isotopic composition of fossil trees from the Cretaceous period.
    • They determined the isotopic composition of the rainfall-derived lake water.

    Nanoscale Secondary Ion Mass Spectrometry (NanoSIMS)

    • NanoSIMS is an advanced analytical technique to determine the composition and distribution of elements and isotopes at a microscopic scale.
    • It allows for high-resolution imaging and quantitative analysis of samples.
    • The technique involves bombarding the sample surface with a focused beam of primary ions.
    • This causes the ejection of secondary ions from the sample surface.
    • The secondary ions are collected and analyzed using a mass spectrometer.
    • The mass spectrometer separates the ions based on their mass-to-charge ratio and measures their abundance.

    Analysis and Findings

    • New Technique: The team used Nanoscale Secondary Ion Mass Spectrometry to analyze oxygen isotopes in fossil trees and measure the isotopic composition of the lake water derived from rainfall.
    • Depleted Oxygen Isotopes: The analysis revealed depleted oxygen isotope values, indicating higher tropical rainfall in India during the terminal Cretaceous period.
    • Link to Paleoclimatic Changes: The increase in rainfall closely corresponded to changes in paleo-atmospheric carbon dioxide levels, suggesting a potential underlying link between the two.

    Implications and Comparison

    • Atmospheric Carbon Dioxide Concentration: The eruption of Deccan Trap lavas released a significant amount of carbon dioxide, raising atmospheric levels to as high as 1,000 ppm.
    • Comparison to Modern Rainfall: The data from fossil trees indicated an annual rainfall of 1,800-1,900 mm, exceeding the average modern rainfall of 1,000-1,200 mm in most parts of peninsular India.
    • Climate Change Predictions: The findings align with predictions made by the Intergovernmental Panel on Climate Change (IPCC) for extreme warming scenarios, suggesting a correlation between high carbon dioxide levels and increased rainfall.

    Climate Models and Future Projections

    • Rising Carbon Dioxide Levels: Fossil fuel emissions have raised carbon dioxide levels from 280 ppm to about 420 ppm in 2023.
    • Impact on Rainfall: Climate models indicate that doubling carbon dioxide levels will intensify atmospheric circulation and subsequently increase rainfall.
    • IPCC AR6 Report: The report warns of a significant increase in the wettest day precipitation and tropical cyclone-associated rainfall if carbon dioxide emissions continue to rise unabated.

    Conclusion

    • The study provides evidence of high rainfall during the volcanic activity that formed the Deccan Traps in India millions of years ago.
    • The findings suggest a correlation between elevated carbon dioxide levels and increased rainfall, supporting predictions made by climate models for future climate change scenarios.

     

  • Gravity Hole in the Indian Ocean

    gravity hole
    The true shape of our Earth

    Central Idea

    • One intriguing phenomenon recently discovered is the presence of a significant “gravity hole” in the Indian Ocean, where the gravitational pull is notably weaker.
    • Recent research sheds light on the possible causes behind this anomaly.

    What is a Gravity Hole?

    • A “gravity hole” refers to a region on Earth where the gravitational pull is significantly weaker compared to the surrounding areas or the global average.
    • It is characterized by a dip or low gravity anomaly.
    • In such areas, the sea level may be lower than average due to the weaker gravitational force acting upon the water.
    • This term is often used to describe specific locations, such as the Indian Ocean geoid low (IOGL), where the gravitational pull is notably diminished compared to nearby regions.
    • The exact causes of gravity holes can vary and may involve factors such as variations in the Earth’s mass distribution or underlying geological features.

    What is Indian Ocean Geoid Low (IOGL)?

    • It is located approximately 1,200 kilometers southwest of the southernmost tip of India.
    • IOGL is an area in the Indian Ocean where the sea level is about 106 meters below the global average.

    Unraveling the Causes of IOGL

    • Discovering the Anomaly: Geophysicist Felix Andries Vening Meinesz first identified the IOGL during a survey in 1948. Since then, it has been confirmed by subsequent ship-based experiments and satellite measurements.
    • Ancient Ocean Hypothesis: Researchers from the Indian Institute of Science conducted computer-simulated models spanning 140 million years. They discovered remnants of an ancient ocean, located approximately 965 kilometers below the Earth’s crust, just beneath Africa.
    • Molten Rock Plumes: The simulations revealed molten rock plumes below Africa, potentially caused by tectonic plates subducting into the mantle. These plumes are believed to be a contributing factor to the IOGL.
    • Possible origination: Researchers said that the IOGL comprises slabs from the Tethys Sea, a long-lost sea that plunged into the depths of the planet millions of years ago. Tethys Sea, which once separated the supercontinents of Gondwana and Laurasia is believed to have perturbed the African Large Low Shear Velocity province.

    Future Perspectives

    • Lack of Seismic Evidence: While the simulated models suggest the presence of molten rock plumes beneath the Indian Ocean, seismographic evidence has yet to confirm their actual existence.
    • Additional Factors at Play: The researchers emphasize that other factors contributing to the gravitational anomaly in the Indian Ocean need to be further explored before reaching a definitive conclusion.
    • Further Research: Continuation of studies, including seismic surveys and detailed modelling, is necessary to gain a comprehensive understanding of the IOGL and its causes.

  • Places in news: Ubinas Volcano

    Central Idea

    • Peru declared a state of emergency for sixty days in areas around the Ubinas volcano.
    • The volcano has been spewing ash and gas and is probably set to erupt.

    Ubinas Volcano

    • Ubinas is an active stratovolcano located in the Moquegua Region of southern Peru, approximately 60 kilometers east of the city of Arequipa.
    • It is part of the Central Volcanic Zone of the Andes and stands at an elevation of 5,672 meters above sea level.

    Geological Characteristics

    • Stratovolcano Formation: Ubinas is characterized by its stratovolcano structure, comprising layers of hardened lava, ash, and other volcanic materials.
    • Caldera and Crater: The volcano’s summit contains a 1.4-kilometer-wide and 150-meter-deep caldera, within which lies a smaller crater. This distinct feature adds to the volcano’s geological significance.
    • Ubinas I and Ubinas II: The volcano exhibits an upwards-steepening cone shape, with a notable notch on its southern side. The lower part is referred to as Ubinas I, while the steeper upper section is known as Ubinas II, representing different stages in the volcano’s geological history.

    Volcanic Activity

    • Active Volcanic History: Ubinas is recognized as the most active volcano in Peru, displaying a history of small to moderate explosive eruptions and persistent degassing.
    • Notable Eruptions: The volcano has experienced notable eruptions throughout history, including the 2006–2007 event that resulted in eruption columns, ash fall, health concerns, and evacuations in the region.
    • Recent Activity: From 2013 to 2017, Ubinas exhibited lava flow within the crater, accompanied by ash falls, leading to further evacuations in nearby towns.

    Eruption and Impact

    • Ash and Gas Emissions: The Ubinas volcano has been actively spewing ash and gas.
    • Smoke Cloud and Affected Areas: The smoke cloud generated by the eruption has reached towns located up to 10 kilometers away from the volcano. This has raised concerns for the well-being of approximately 2,000 people residing in the affected areas.
    • The “Ring of Fire”: The region where Ubinas is situated falls within the “Ring of Fire,” an area around the Pacific Ocean known for its high volcanic and seismic activity.

     

  • Solar Shooting Stars: Discovering Fiery Rain on the Sun

    shooting star

    Central Idea

    • Astronomers have made a remarkable discovery of meteor-like streaks on the surface of the Sun, differentiating them from the shooting stars witnessed on Earth.
    • These solar shooting stars, observed during a phenomenon known as coronal rain, offer valuable insights into the Sun’s complex dynamics.

    Observing Coronal Rain and Solar Shooting Stars

    • Distinction from Earthly Shooting Stars: While shooting stars on Earth are space rocks or dust fragments burning up in our atmosphere, solar shooting stars occur within coronal rain phenomena.
    • Coronal Rain: Coronal rain is a condensation process involving extremely hot material from the Sun’s corona. It forms dense clumps of plasma, which plummet back to the Sun’s surface due to its immense gravity.
    • European Space Agency’s Solar Orbiter (SolO): The SolO spacecraft provided valuable observations of solar shooting stars, capturing high-resolution images and monitoring the heating and compression of gas beneath them.

    Characteristics of such Stars

    • Findings: The Solar Orbiter observed the impacts of solar shooting stars for the first time, revealing intense bursts of brightness, upward movement of stellar material, and shock waves that heat up the Sun’s corona.
    • Unique Features: Unlike Earthly shooting stars, solar shooting stars lack bright tails due to powerful magnetic fields in the Sun’s corona stripping gas from the falling clumps.
    • Challenging Observations: The magnetic fields’ influence makes the observation of solar meteors challenging, and their true nature remained unknown until these recent observations.

    Insights and Implications

    • Solving the Corona Mystery: Scientists believe that the discovery of solar shooting stars could help explain why the corona, the Sun’s outermost atmosphere, is hotter than the layers beneath it. This puzzles astronomers, as conventional solar models predict increasing temperatures closer to the Sun’s core.
    • Coronal Rain Formation: Coronal rains are formed by localized temperature drops, causing solar plasma to condense into dense lumps that fall to the Sun’s cooler surface, known as the photosphere, at speeds up to 220,000 miles per hour.
    • Proximity of Observation: The Solar Orbiter’s close distance of 30 million miles from the Sun allowed for detailed observations of these phenomena, closer than the orbit of Mercury.

  • [pib] Exercise SALVEX

    Central Idea

    • The Indian Navy and the US Navy recently concluded the seventh edition of the Salvage and Explosive Ordnance Disposal (EOD) exercise, known as SALVEX.

    Exercise SALVEX

    • Since its inception in 2005, SALVEX has facilitated the exchange of expertise and the enhancement of capabilities in maritime salvage and EOD operations.
    • The IN-USN SALVEX exercise has become a cornerstone of bilateral naval cooperation between India and the United States, fostering mutual trust and collaboration.
    • The exercise featured the participation of INS Nireekshak and USNS Salvor, along with Specialist Diving and EOD teams from both navies.

    Key outcomes

    • Shared Learning on Maritime Salvage: The Diving teams from both countries engaged in the exchange of experiences, lessons, and best practices in maritime salvage operations.
    • Training Synergies on EOD Operations: The exercise provided an ideal platform for joint training exercises, allowing divers and EOD teams to enhance their interoperability and refine their skills.
    • Mastery of Mine Detection and Neutralization: The participating divers received comprehensive training in the detection and neutralization of mines, enabling them to mitigate potential threats in underwater environments.
    • Efficient Wreck Location and Salvage Techniques: The exercise focused on honing the teams’ abilities to locate and salvage wrecks, a critical skill for ensuring safe navigation and effective disaster response.

  • Annapurti: The grain ATM

    annapurti

    Central Idea

    • The recent demonstration of the Automated Multi-Commodity Grain Dispensing Machine, Annapurti, during the ‘National Conference of Food Ministers of States/UTs,’ showcased an innovative solution developed by the World Food Programme (WFP) India.

    What is Annapurti?

    • Annapurti, also known as the Grain ATM, offers a fast, clean, and precise method of providing subsidized grains to beneficiaries through the Public Distribution System.
    • Developed by WFP India, it is an automated multi-commodity dispensing solution that ensures efficient access to commodities like rice, wheat, and grains.
    • Beneficiaries can securely access their entitlements through Annapurti following biometric authentication.

    Key Features

    • Annapurti offers 24×7 access to full entitlements, eliminating spillage, waste, and inaccurate weighing.
    • The machine can dispense one or two grain commodities, up to 50 kilograms, within five minutes, with a minimal error rate of 0.01 percent.

    Advantages and Potential Applications

    (1) Ensuring Food Security:

    • Annapurti has significant potential for food-based safety nets, ensuring beneficiaries receive their monthly subsidized grains promptly.
    • The machine’s precision and reliability prevent losses and ensure individuals receive their entitled portions.

    (2) Emergency Food Grain Distribution:

    • During emergencies, such as natural disasters or humanitarian crises, Annapurti can facilitate efficient and timely distribution of food grains to affected populations.
    • Its automated system streamlines the process, reducing dependency on manual labor and minimizing errors.

    (3) Market Access for Smallholder Farmers:

    • Annapurti can play a crucial role in expanding market access for smallholder farmers.
    • By offering a reliable and efficient distribution channel, farmers can sell their produce directly to Annapurti, ensuring fair prices and reducing intermediaries.

    Sustainable and Modular Design

    (1) Energy Efficiency:

    • Annapurti is designed to prioritize food security while ensuring efficient energy consumption.
    • With a consumption rate of only 0.6 Watt per hour, it offers an environmentally friendly solution.

    (2) Modular Design:

    • Annapurti’s modular design allows for flexibility and scalability based on available space.
    • The storage unit and components can be easily assembled and customized to suit different requirements.

    (3) Integration with Renewable Energy:

    • Annapurti can be integrated with solar panels, inverter batteries, and elevators for automatic refilling.
    • This integration enhances the sustainability of the system by reducing dependency on conventional energy sources.

     

  • SC Collegium proposes new CJs to 7 High Courts

    collegium

    Central Idea

    • The Supreme Court Collegium, led by Chief Justice of India D. Y. Chandrachud, has recommended new Chief Justices for seven major High Courts in India.
    • The recommendations focus on criteria such as seniority, regional representation, and gender diversity.

    What is Collegium System?

    • The Collegium of judges is the Indian Supreme Court’s invention.
    • It does not figure in the Constitution, which says judges of the Supreme Court and High Courts are appointed by the President and speaks of a process of consultation.
    • In effect, it is a system under which judges are appointed by an institution comprising judges.
    • After some judges were superseded in the appointment of the CJI in the 1970s, and attempts made subsequently to effect a mass transfer of High Court judges across the country.
    • Hence there was a perception that the independence of the judiciary was under threat. This resulted in a series of cases over the years.

    Evolution: The Judges Cases

    • First Judges Case (1981) ruled that the “consultation” with the CJI in the matter of appointments must be full and effective.
    • However, it rejected the idea that the CJI’s opinion, albeit carrying great weight, should have primacy.
    • Second Judges Case (1993) introduced the Collegium system, holding that “consultation” really meant “concurrence”.
    • It added that it was not the CJI’s individual opinion, but an institutional opinion formed in consultation with the two senior-most judges in the Supreme Court.
    • Third Judges Case (1998): On a Presidential Reference for its opinion, the Supreme Court, in the Third Judges Case (1998) expanded the Collegium to a five-member body, comprising the CJI and four of his senior-most colleagues.

    Functions of the Collegium

    (1) Appointment of CJI

    • The President of India appoints the CJI and other Supreme Court judges.
    • The outgoing CJI recommends his successor, and the appointment is typically made based on seniority, following the controversy of the 1970s.
    • The Union Law Minister forwards the recommendation to the Prime Minister, who then advises the President on the appointment.

    (2) Appointment of Other SC Judges

    • The proposal for appointing other judges to the Supreme Court is initiated by the CJI.
    • The CJI consults other members of the Collegium, as well as the senior-most judge from the High Court to which the recommended person belongs.
    • The opinions of the consultees must be recorded in writing and included in the file.
    • The Collegium sends the recommendation to the Law Minister, who forwards it to the Prime Minister for the President’s advice.

    (3) Appointment of High Court Judges

    • Chief Justices (CJs) of High Courts are appointed based on the policy of having Chief Justices from outside the respective states. The Collegium makes the final decision on their elevation.
    • The appointment of High Court judges is recommended by a Collegium consisting of the CJI and two senior-most judges.
    • The Chief Justice of the High Court concerned initiates the proposal in consultation with two senior-most colleagues.
    • The recommendation is then sent to the Chief Minister, who advises the Governor to forward the proposal to the Union Law Minister.

    (4) Transfer Recommendations by the Collegium

    • The Collegium is also responsible for recommending transfers of Chief Justices and other judges.
    • Article 222 of the Constitution allows for the transfer of judges from one High Court to another.
    • When a Chief Justice is transferred, a replacement must be simultaneously appointed for the concerned High Court. An acting Chief Justice can be appointed for a maximum of one month.
    • In transfer matters, the CJI’s opinion is determinative, and the consent of the judge being transferred is not required.
    • However, the CJI should consider the views of the Chief Justice of the concerned High Court and one or more Supreme Court judges who are in a position to provide their opinions.
    • All transfers must be made in the public interest, aiming for the betterment of the administration of justice.

     

  • Kanwar Yatra: What is it?

    kanwar yatra

    Central Idea: The Kanwar Yatra, a significant annual pilgrimage, commenced on July 4 and will continue until July 15.

    What is Kanwar Yatra?

    • This pilgrimage sees millions of devotees, known as Kanwariyas or Kriyas, undertaking a journey to collect water from the Ganga River and offer it to Lord Shiva.
    • The Kanwar Yatra symbolizes the unbreakable bond between devotees and Lord Shiva and is considered an act of faith and devotion.

    Mythological Origins of Kanwar Yatra

    • Samudra Manthan: Kanwar Yatra is believed to have originated from the mythological story of Samudra Manthan, where Lord Shiva consumed poison to save the world. To alleviate the effects of the poison, all the gods poured water from the Ganga River on Lord Shiva.
    • King Rama’s Offering: Another version suggests that the ritual of Kanwar Yatra began when King Ram offered water from the Ganga to a statue of Lord Shiva (shivalinga) in an earthen pot.

    Customs and Rituals Performed

    • Collection of Ganga Water: Devotees, dressed in saffron attire, embark on foot to collect water from the Ganga River at Haridwar, Gomukh, and Gangotri. They carry two earthen pots filled with water, hung on a decorated bamboo stick, which they balance on their shoulders.
    • Significance of Purity: Devotees consider it essential to keep the pots from touching the ground or getting contaminated by dust, as it may impure the sacred water.
    • Challenging Journey: Kanwariyas undertake the yatra barefoot, covering long distances in challenging terrains and extreme weather conditions.

  • Tomato Crop affected by different Mosiac Viruses

    tomato mosiac

    Central Idea

    • Tomato growers in Maharashtra and Karnataka have reported significant yield losses due to the impact of two different Mosiac Viruses.
    • The cucumber mosaic virus (CMV) has affected tomato crops in Maharashtra, while the tomato mosaic virus (ToMV) has been blamed for crop losses in Karnataka and other South Indian states.

     

    Cucumber Mosaic Virus (CMV)

    Tobacco Mosaic Virus (TMV)
    Target Plants Various plants, including cucumbers, tomatoes, peppers, lettuce, and ornamentals Plants in the Solanaceae family, including tobacco, tomatoes, peppers, etc.
    Transmission Aphids, seeds, mechanical contact, infected plant debris Direct contact, mechanical transmission, contaminated plant material
    Symptoms Mosaic patterns, yellowing, stunted growth, leaf curling, distorted fruits or flowers Mosaic patterns, yellowing, leaf curling, stunted growth
    Impact on Crops Reduced yield and quality Reduced yield, impact on flavor and quality
    Longevity Not specified Long-term viability in dried plant debris, tobacco products, contaminated surfaces
    Control Measures Vector control, seed selection, crop rotation Crop rotation, sanitation, virus-free seeds/seedlings, cultural practices
    Curability No cure, management focuses on prevention No cure, management focuses on prevention

     

    Impact on Tomato Crops

    • Symptoms of ToMV: Infected plants exhibit alternating yellowish and dark green areas, blisters on leaves, leaf distortion, twisting of younger leaves, necrotic spots on fruits, and reduced fruit setting.
    • Symptoms of CMV: Leaf distortion, with top and bottom leaves most affected, mosaic-like patterns of yellow and green spots in cucumber, fruit deformation, and reduced production in tomato.

    Control Measures

    • ToMV: Ensuring biosafety standards in nurseries, seed treatment, careful inspection of saplings before planting, continuous monitoring for infection, and removal of infected plants are crucial.
    • CMV: Due to its wide host range, controlling aphids becomes essential. Measures include spraying quick-acting insecticides or mineral oils, monitoring aphid migration, and clearing fields of weeds and plant material that may harbor the virus.