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Type: Prelims Only

  • Global Geological And Climatic Events

    What is Daylight Saving Time (DST)?

    17 March 2022 | Prelims Only | Science and Technology
    Mains GS3: GS3-17.Awareness in the fields of IT, Space, Computers, Robotics, Nano-technology, Bio-technology and issues relating to Intellectual Property Rights.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Daylight Saving Time (DST), Equinoxes

    Mains level: Not Much

    The United States Senate unanimously passed a law making daylight saving time (DST) permanent, scrapping the biannual practice of putting clocks forward and back coinciding with the arrival and departure of winter.

    What does this imply?

    • With clocks in the US going back an hour, the time difference between New York and India will increase from the current nine and a half hours to ten and a half hours.
    • In the Southern Hemisphere, the opposite has happened, where countries have “sprung forward”, and time difference with India has reduced.

    What is DST?

    • DST is the practise of resetting clocks ahead by an hour in spring, and behind by an hour in autumn (or fall).
    • During these months, countries that follow this system get an extra hour of daylight in the evening.
    • Because the spring to fall cycle is opposite in the Northern and Southern Hemispheres, DST lasts from March to October/November in Europe and the US, and from September/October to April in New Zealand and Australia.
    • Dates for this switch, which happens twice a year (in the spring and autumn) are decided beforehand.
    • By law, the 28 member states of the EU switch together — moving forward on the last Sunday of March and falling back on the last Sunday in October.
    • In the US, clocks go back on the first Sunday of November.

    Now try this PYQ:

    Q.On 21st June, the Sun

    (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

    How many countries use DST?

    • DST is in practice in some 70 countries, including those in the European Union.
    • India does not follow DST; since countries near the Equator do not experience high variations in daytime hours between seasons.
    • There is, however, a separate debate around the logic of sticking with an only one-time zone in a country as large as India.

    What does this system mean to achieve?

    • The key argument is that DST is meant to save energy.
    • The rationale behind setting clocks ahead of standard time, usually by 1 hour during springtime, is to ensure that the clocks show a later sunrise and later sunset — in effect a longer evening daytime.
    • Individuals will wake an hour earlier than usual, complete their daily work routines an hour earlier, and have an extra hour of daylight at the end.

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  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    What is a Heatwave?

    16 March 2022 | Prelims Only | Environment
    Mains GS1: GS1-14.Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.,

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Heatwaves

    Mains level: Not Much

    The Konkan region, including Mumbai, has been experiencing sweltering heat in recent days, with the maximum temperatures touching the 40 degrees mark.

    What is a Heatwave and when is it declared?

    • Heatwaves occur over India between March and June.
    • IMD declares a heatwave event when the maximum (day) temperature for a location in the plains crosses 40 degrees Celsius.
    • Over the hills, the threshold temperature is 30 degrees Celsius.

    Following criteria are used to declare heatwave:

    To declare heatwave, the below criteria should be met at least in 2 stations in a Meteorological subdivision for at least two consecutive days and it will be declared on the second day.

    a) Based on Departure from Normal

    • Heat Wave: Departure from normal is 4.5°C to 6.4°C
    • Severe Heat Wave: Departure from normal is >6.4°C

    b) Based on Actual Maximum Temperature (for plains only)

    • Heat Wave: When actual maximum temperature ≄ 45°C
    • Severe Heat Wave: When actual maximum temperature ≄47°C

    How long can a heatwave spell last?

    • A heatwave spell generally lasts for a minimum of four days. On some occasions, it can extend up to seven or ten days.
    • The longest recorded heatwave spell, in recent years, was between 18 – 31 May 2015.

     

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  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    What are Man-Portable Air-Defence Systems (MANPADS)?

    15 March 2022 | Prelims Only | Science and Technology
    Mains GS3: GS3-17.Awareness in the fields of IT, Space, Computers, Robotics, Nano-technology, Bio-technology and issues relating to Intellectual Property Rights.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: MANPADS

    Mains level: Not Much

    The United States has approved a $200-million arms package for Ukraine, which would include US made Stinger Missiles, which are a type of shoulder-fired Man-Portable Air-Defence Systems (MANPADS).

    What are MANPADS?

    • Man-Portable Air-Defence Systems are short-range, lightweight and portable surface-to-air missiles that can be fired by individuals or small groups to destroy aircraft or helicopters.
    • They help shield troops from aerial attacks and are most effective in targeting low-flying aircrafts.
    • MANPATs or Man-Portable Anti-Tank Systems work in a similar manner but are used to destroy or incapacitate military tanks.

    Uniqueness of MANPADS

    • MANPADS can be shoulder-fired, launched from atop a ground-vehicle, fired from a tripod or stand, and from a helicopter or boat.
    • They weigh anywhere between 10 to 20 kilograms and not being longer than 1.8 metres.
    • They are fairly lightweight as compared to other elaborate weapon systems, making them easy to operate by individual soldiers.
    • Operating MANPADS requires substantially less training.
    • MANPADS have a maximum range of 8 kilometres and can engage targets at altitudes of 4.5 km.

    Stealth features

    • They have passive or ‘fire and forget’ guidance systems, meaning that the operator is not required to guide the missile to its target, enabling them to run and relocate immediately after firing.
    • The missile stays locked-on to the targeted object, not requiring active guidance from the soldier.
    • The missiles are fitted with infrared (IR) seekers that identify and target the airborne vehicle through heat radiation being emitted by the latter.

     

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  • Economic Indicators and Various Reports On It- GDP, FD, EODB, WIR etc

    Retail Inflation climbs to 6.07%

    15 March 2022 | Prelims Only | Economics
    Mains GS3: Indian Economy

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Wholesale and Retail (Consumer) Inflation

    Mains level: Not Much

    India’s retail inflation inched up to an eight-month high of 6.07% in February from 6.01% in January, with rural India experiencing a sharper price rise at 6.38%.

    What is Retail Inflation?

    • When we generally talk about retail inflation, it often refers to the rate of inflation based on the consumer price index (CPI).
    • The CPI tracks the change in retail prices of goods and services which households purchase for their daily consumption.
    • The CPI monitors retail prices at a certain level for a particular commodity; price movement of goods and services at rural, urban and all-India levels.
    • The change in the price index over a period of time is referred to as CPI-based inflation, or retail inflation.

    What is Consumer Price Index (CPI)?

    • It is an index measuring retail inflation in the economy by collecting the change in prices of most common goods and services used by consumers.
    • In India, there are four consumer price index numbers, which are calculated, and these are as follows:
      1. CPI for Industrial Workers (IW)
      2. CPI for Agricultural Labourers (AL)
      3. CPI for Rural Labourers (RL) and
      4. CPI for Urban Non-Manual Employees (UNME).
    • While the Ministry of Statistics and Program Implementation collects CPI (UNME) data and compiles it, the remaining three are collected by the Labour Bureau in the Ministry of Labour.
    • The base year for CPI is 2012.
    • To calculate CPI, multiply 100 to the fraction of the cost price of the current period and the base period.

    Significance of CPI

    • Generally, CPI is used as a macroeconomic indicator of inflation, as a tool by the central bank and government for inflation targeting and for inspecting price stability, and as deflator in the national accounts.
    • CPI also helps understand the real value of salaries, wages, and pensions, the purchasing power of the nation’s currency, and regulating rates.
    • CPI, one of the most important statistics to ascertain economic health, is generally based on the weighted average of the prices of commodities.
    • It basically gives an idea of the cost of the standard of living.

     

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  • International Space Agencies – Missions and Discoveries

    Functioning of the ISS after US sanctions

    14 March 2022 | Prelims Only | Science and Technology
    Mains GS3: GS3-17.Awareness in the fields of IT, Space, Computers, Robotics, Nano-technology, Bio-technology and issues relating to Intellectual Property Rights.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: ISS

    Mains level: Decommissioning of ISS

    Western sanctions against Russia could cause the International Space Station (ISS) to crash, the head of Russian space agency Roscosmos has warned.

    What is the ISS?

    • The ISS was launched in 1998 as part of joint efforts by the U.S., Russia, Japan, Canada and Europe.
    • The idea of a space station originated in the 1984 State of the Union address by former U.S. President Ronald Reagan.
    • The space station was assembled over many years, and it operates in low-earth orbit.
    • Since its inception, it has served as a laboratory suspended in space and has aided multiple scientific and technological developments.
    • The ISS was originally built to operate for 15 years.

    Why was ISS launched?

    • A space station permits quantum leaps in research in science, communications, and in metals and lifesaving medicines which could be manufactured only in space.
    • ISS has consistently maintained human presence for the past 21 years, providing astronauts with sophisticated technologies for scientific research.

    What is Russia’s role in maintaining the ISS?

    • The ISS is built with the co-operation of scientists from five international space agencies — NASA of the U.S., Roscosmos of Russia, JAXA of Japan, Canadian Space Agency and the European Space Agency.
    • Each agency has a role to play and a share in the upkeep of the ISS.
    • Both in terms of expense and effort, it is not a feat that a single country can support.
    • Russia’s part in the collaboration is the module responsible for making course corrections to the orbit of the ISS.
    • They also ferry astronauts to the ISS from the Earth and back.
    • Until SpaceX’s dragon spacecraft came into the picture the Russian spacecrafts were the only way of reaching the ISS and returning.

    Why does the orbit of the ISS need to be corrected?

    • Due to its enormous weight and the ensuing drag, the ISS tends to sink from its orbit at a height of about 250 miles above the Earth.
    • It has to be pushed up to its original line of motion every now and then.
    • This is rather routine, even for smaller satellites.
    • Approximately once a month this effort has to be made.
    • The other reason for altering the path of the ISS is to avoid its collision with space debris, which can damage the station.

    What is the extent of effort and expense involved in this?

    • Manoeuvring the ISS is expensive.
    • In a year, 7-8 tonnes of fuel may need to be spent, with each manoeuvre costing nearly a tonne of fuel.
    • If a manoeuvre is put off for later, the ISS may sink a little more and the delayed operation would cost more as a larger correction needs to be made.

    Risks of crashing

    • The orbit of the ISS does not fly over the Russian territory mostly.
    • Places that are closer to the equator run a greater risk of it falling in their domain.
    • The orbit is at about 50 degrees and so most probably, the ISS will fall in that level.
    • But this is only a probability, as it can move or disintegrate.
    • But in case of this eventuality, people in the ISS will be brought back, modules can be detached thereby making it much smaller which will ensure that it disintegrates before touching the earth.

     

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  • Indian Missile Program Updates

    Indian missile misfires into Pakistan

    12 March 2022 | Prelims Only | Internal Security
    Mains GS3: Indigenization Of Technology

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: BrahMos Missile

    Mains level: Not Much

    India has acknowledged a malfunction led to accidental firing of a missile, which Pakistan says landed in its territory.

    Conducting Missile Tests: NOTAM and NAVAREA Warnings

    • Under the pre-notification of flight testing of ballistic missiles agreement signed in 2005, a country must provide the other an advance notification on flight test it intends to take for any land or sea launched, surface-to-surface ballistic missile.
    • Before the test, the country must issue Notice to Air Missions (NOTAM) or Navigational Warning (NAVAREA) to alert aviation pilots and seafarers, respectively.
    • Also, the testing country must ensure that the launch site is not within 40 km, and the planned impact area is not within 75 km of either the International Boundary (IB) or the Line of Control (LoC).
    • The planned trajectory should not cross the IB or the LoC and must maintain a horizontal distance of at least 40 km from the border.

    Pre-notifications to the neighbours

    • The testing country must notify the other nation “no less than three days in advance of the commencement of a five day launch window within which it intends to undertake flight tests.
    • The pre-notification has to be conveyed through the respective Foreign Offices and the High Commissions, as per the format annexed to this Agreement.

    What is the recent case of misfire?

    • Neither country has spelt this out; Pakistan has only called it a “supersonic” missile.
    • Some experts have speculated that it was a test of one of India’s top missiles, BrahMos, jointly developed with Russia.
    • Their assessment is based on information that it travelled 200 km, manoeuvred mid-air and travelled at 2.5 times to 3 times the speed of sound at an altitude of 40,000 feet.
    Note:  BrahMos has a top speed of Mach 3, a range of around 290 km, and a cruising altitude of 15 km (around 50,000 feet). It can be fired from anywhere, is nuclear-capable, and can carry warheads of 200-300 kg.

     

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  • Festivals, Dances, Theatre, Literature, Art in News

    Art-form in news: Santhali Sohrai Murals

    12 March 2022 | Prelims Only | History
    Mains GS1: GS1-01.Indian Culture- Salient aspects of Art Forms, Literature and Architecture from ancient to modern times.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Sohrai Murals

    Mains level: NA

    Santhali communities of Odisha and Jharkhand are changing their ways of painting traditional Sohrai murals to modernity.

    What is Sohrai?

    • Sohrai is a harvest festival of the Indian states of Bihar, Jharkhand, Chhattisgarh, Odisha, and West Bengal.
    • It also called cattle festival. It is celebrated after harvest and coincide with festival of Diwali.

    What are Sohrai Murals?

    • Sohrai Mural is an indigenous art form is practised by the women of Santhal Community.
    • Ritualistic art is done on mud walls to welcome the harvest and to celebrate the cattle.
    • The women clean their houses and decorate their walls with murals of Sohrai arts.
    • This art form has continued since 10,000-4,000 BC. It was prevalent mostly in caves, but shifted to houses with mud walls.

    Features of this art

    • This Sohrai art form can be monochromatic or colorful.
    • The people coat the wall with a layer of white mud, and while the layer is still wet, they draw with their fingertips on it.
    • Their designs range from flowers and fruits to various other nature-inspired designs.
    • The cow dung that was earlier used to cake the walls of the house is used to add colour.
    • The dark outline is visible due to the previously applied contrasting white mud coat.
    • The artists are spontaneous in their drawing. The designs are usually drawn from the artist’s memory.
    • The personal experience of the artist and their interaction with nature are the biggest influence.

     

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  • Disinvestment in India

    [pib] National Land Monetisation Corporation (NLMC)

    10 March 2022 | Prelims Only | Economics
    Mains GS3: Indian Economy

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: National Land Monetisation Corporation (NLMC)

    Mains level: Asset Monetization

    The Union Cabinet has approved the setting up of a new government-owned firm National Land Monetisation Corporation (NLMC) for pooling and monetizing sovereign and public sector land assets.

    What is NLMC?

    • The National Land Monetisation Corporation (NLMC) is being formed with an initial authorised share capital of â‚č5,000 crore and paid-up capital of â‚č150 crore.
    • The government will appoint a chairman to head the NLMC through a “merit-based selection process” and hire private sector professionals with expertise.
    • The NLMC will undertake monetization of surplus land and building assets of Central public sector enterprises (CPSEs) as well as government agencies.

    How will it function?

    • NLMC will own, hold, manage and monetise surplus land and building assets of CPSEs under closure and surplus non-core land assets of Government-owned CPSEs under strategic disinvestment.
    • This will speed up the closure process of CPSEs and smoothen the strategic disinvestment process of Government-owned CPSEs, the statement said.
    • NLMC will undertake surplus land asset monetisation as an agency function, and assist and provide technical advice to the Centre in this regard.
    • The NLMC board will comprise senior Government officers and eminent experts, while its chairman and non-Government directors will be appointed through a merit-based selection process, the statement said.
    • The Corporation will have minimal full-time staff, hired directly from the market on a contract basis.

    Stipulated tasks

    • CPSEs have referred around 3,400 acres of land and other non-core assets to the Department of Investment and Public Asset Management (DIPAM) for monetisation.
    • Monetisation of non-core assets of MTNL, BSNL, BPCL, BEML, HMT, is currently at various stages of the transaction, as per latest data in the Economic Survey 2021-22.

    Significance of NLMC

    • The government would be able to generate substantial revenues by monetizing unused and under-used assets.
    • The new corporation will also help carry out monetization of assets belonging to public sector firms that have closed or are lined up for a strategic sale.

     

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  • Soil Health Management – NMSA, Soil Health Card, etc.

    What are Karewas?

    9 March 2022 | Prelims Only | Environment
    Mains GS3: GS3-18.Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Karewa

    Mains level: Land degradation

    Kashmir’s highly fertile alluvial soil deposits called ‘karewas’ are being destroyed in the name of development, much to the peril of local people

    What are Karewas?

    • The Kashmir valley is an oval-shaped basin, 140 km long and 40 km wide, trending in the NNW–SSE direction.
    • It is an intermountain valley fill, comprising of unconsolidated gravel and mud.
    • A succession of plateaus is present above the Plains of Jhelum and its tributaries.
    • These plateau-like terraces are called ‘Karewas’ or ‘Vudr’ in the local language.
    • These plateaus are 13,000-18,000 metre-thick deposits of alluvial soil and sediments like sandstone and mudstone.
    • This makes them ideal for cultivation of saffron, almonds, apples and several other cash crops.

    Significance of Karewas

    • Today, the karewa sediments not only hold fossils and remnants of many human civilisations and habitations, but are also the most fertile spots in the valley.
    • Kashmir saffron, which received a Geographical Indication (GI) tag in 2020 for its longer and thicker stigmas, deep-red colour, high aroma and bitter flavour, is grown on these karewas.

    How are they formed?

    • The fertility of these patches is believed to be the result of their long history of formation.
    • When formed during the Pleistocene period (2.6 million years to 11,700 years ago), the Pir Panjal range blocked the natural drainage in the region and formed a lake spanning 5,000 sq km.
    • Over the next few centuries, the water receded, making way for the valley and the formation of the karewas between the mountains.

    Threats to Karewas

    • Despite its agricultural and archaeological importance, karewas are now being excavated to be used in construction.
    • Between 1995 and 2005, massive portions of karewas in Pulwama, Budgam and Baramulla districts were razed to the ground for clay for the 125-km-long Qazigund-Baramulla rail line.
    • The Srinagar airport is built on the Damodar karewa in Budgam.

     

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  • Modern Indian History-Events and Personalities

    In news: Pal-Dadhvav Massacre

    9 March 2022 | Prelims Only |
    Mains GS1: GS1-02.Modern Indian History- Mid-18th century – Present (significant events, personalities, issues);

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Pal-Dadhvav Massacre

    Mains level: Major tribal uprisings in freedom struggle

    The Gujarat government has marked 100 years of the Pal-Dadhvav killings, calling it a massacre “bigger than the Jallianwala Bagh”.

    Pal-Dadhvav Massacre

    • The massacre took place on March 7, 1922, in the Pal-Chitariya and Dadhvaav villages of Sabarkantha district, then part of Idar state.
    • The day was Amalki Ekadashi, which falls just before Holi, a major festival for tribals.
    • Villagers from Pal, Dadhvav, and Chitariya had gathered on the banks of river Heir as part of the ‘Eki movement’, led by one Motilal Tejawat.
    • The movement was to protest against the land revenue tax (lagaan) imposed on the peasants by the British and feudal lords.
    • Tejawat, who belonged to Koliyari village in the Mewad region of Rajasthan, had also mobilised Bhils from Kotda Chhavni, Sirohi, and Danta to participate.

    The fateful day

    • Tejawat had been outlawed by the Udaipur state, which had announced a Rs-500 reward on his head.
    • The Mewad Bhil Corps (MBC), a paramilitary force raised by the British that was on the lookout for Tejawat, heard of this gathering and reached the spot.
    • On a command from Tejawat, nearly 2000 Bhils raised their bows and arrows and shouted in unison- ‘We will not pay the tax’.
    • The MBC commanding officer, HG Sutton, ordered his men to fire upon them creating a huge stampede.
    • Nearly 1,000 tribals (Bhils) fell to bullets. While the British claimed some 22 people were killed, the Bhils believe 1,200-1,500 of them died.

    Must read:

    Important Rebellions and Peasant Movements

     

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