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GS Paper: GS3-17.Awareness in the fields of IT, Space, Computers, Robotics, Nano-technology, Bio-technology and issues relating to Intellectual Property Rights.

  • Adopting Sustainable Space Technology

    Sustainable

    Context

    • World Space Week this year is themed around ‘Space and Sustainability’. Among other things, the 2022 theme seeks to specifically inspire focus on the challenges the world faces to keep space safe and sustainable.

    What is mean by Space?

    • Space is an almost perfect vacuum, nearly void of matter and with extremely low pressure. In space, sound doesn’t carry because there aren’t molecules close enough together to transmit sound between them. Not quite empty, bits of gas, dust and other matter floats around “emptier” areas of the universe, while more crowded regions can host planets, stars and galaxies.
    • From our Earth-bound perspective, outer space is most often thought to begin about 62 miles (100 kilometers) above sea level at what is known as the Kármán line. This is an imaginary boundary at an altitude where there is no appreciable air to breathe or scatter light. Passing this altitude, blue starts to give way to black because oxygen molecules are not in enough abundance to make the sky blue.

    Sustainable

    What is mean by Space sustainability?

    • Space sustainability is ensuring that all humanity can continue to use outer space for peaceful purposes and socioeconomic benefit now and in the long term. This will require international cooperation, discussion, and agreements designed to ensure that outer space is safe, secure, and peaceful.

    What necessitate the sustainable space technology debate?

    • Mounting challenge of Space debris: Challenges are endless in both quantitative and qualitative terms, i.e., they are several and severe, ranging from satellite crowding and collision risk to space debris in the Low Earth Orbit (LEO).
    • Ever increasing satellites: The sense of urgency around space sustainability is already skyrocketing—more than 80 countries currently contribute to the over 6,800 active satellites in orbit, of which many are used for both civilian and military purposes, as well as over 30,000 pieces of orbital debris.
    • Militarization of space: Given the development of new and emerging space technologies, the rapid militarisation and securitisation of space, and the growing distrust amongst nations in the domain, space activity is only set to increase and acquire a more national security-oriented focus.
    • Large scale Development of ASAT: This is already visible in several countries around the world. There has been a recent uptick in the development and testing of destructive anti-satellite (ASAT) weapons, with 26 tests in the past two decades conducted by the four countries that have access to these weapons (US, Russia, China, and India).
    • Massive investment into military space capability: France, which is currently leading the European Council, has also invested several billion euros into military space capabilities, and regularly emphasises the security importance of space for other EU countries.
    • Increasing Defence space commands: Australia set up its Defence Space Command in early 2022 to increase its strategic potential in space, and South Korea deployed a spy satellite to better monitor North Korea in June 2022, giving its military space plan a huge push.
    • However, none of these countries have a sustainability provision in their defence space operations or programmes.

    Sustainable

    What are the challenges of Security and sustainability of Space?

    • Dichotomy in Security and sustainability: Sustainability and security are two sides of the same coin, but as a result of this inherent dichotomy, they are often juxtaposed against each other.
    • Keeping Security is the priority: The contrast between highly motivated and funded national security efforts and the relatively non-prioritised international engagements around space sustainability is an example of a larger trend of indifference towards sustainable development in favour of higher military spending.
    • SDG on backburner: To substantiate this point, funding for the Sustainable Development Goals (SDGs) was adversely affected due to COVID-19 in 2021, and this reportedly dramatically pushed back progress on the SDGs, but the global military expenditure has consistently been on an upward incline and crossed the US$2 trillion mark for the first time in the same year.
    • Securitization of space: The trade-off between security and sustainability can jeopardise sustainable development within a plethora of issue domains, thus, increasing the likelihood of exhausting limited resources. This in turn could exacerbate the risk of conflict due to the resulting scarce resources, ultimately creating a vicious cycle of securitisation and conflict.
    • Rat race in Space : As a case in point, the incumbent space race has always been marked by competing security and commercial interests, which has resulted in a constant escalation of global government spending on space programmes to its record value of US$98 billion in 2021. Space sustainability, on the other hand, has only seen activity recently, and primarily in an international and voluntary set-up.

    Sustainable

    What regulations are needed for Sustainable Space?

    • Prioritising peaceful use of space: A Working Group on the Long-term Sustainability of Outer Space Activities was set up by the Committee on the Peaceful Uses of Outer Space (COPUOS) in 2010, which has 95 UN member states taking part in it. The Group adopted a set of guidelines by consensus in 2019, although it failed to make these guidelines or any other regulations legally binding. It agreed to work over it for 5 years from 2022 onwards, but since the Group uses a consensus-based approach to reach agreements, it is difficult to expect more stringent or extensive regulatory frameworks to emerge from it.
    • Consensus is difficult but necessary: Consensus-based approaches in multilateral forums, especially related to arms or other security objectives, often contrast with individual national security interests of its member states and have been criticised for their slow or ineffective progress.
    • Convention on Certain Conventional Weapons: Another example of this is the Convention on Certain Conventional Weapons’ (CCW) Group of Government Experts (GGE) meetings on lethal autonomous weapons systems (LAWS), which have only produced a set of 11 non-binding guiding principles since deliberations around LAWS began in 2014.
    • Space sustainable ratings should be developed: The World Economic Forum, for instance, introduced a new standard called the Space Sustainability Rating (SSR), in 2022, which aims to recognise, reward, and encourage space actors to design and implement sustainable and responsible space missions. It remains to be seen whether countries will respond favourably to tools like the SSR, which are based on a positive reinforcement model, to be more space sustainability-conscious.

    Conclusion

    • space sustainability is only at the cusp of becoming actionable. When space experts, intergovernmental organisations, or countries themselves conclude that sustainability should be a part of their space mandate, and when they devise possible methods to help achieve this, they cannot do so in a vacuum. Space sustainability should not become the political football like climate change.

    Mains Question

    Q.What are the threats to sustainable space technology? Comment on various laws, regulations, forums on sustainable space technology.

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  • Critical Minerals: Opprtunity for Aatmanirbharta in Energy security.

    Minerals

    Context

    • In his Independence Day address, Prime Minister Narendra Modi exhorted the country to pursue aatmanirbhar bharta in energy by focusing on clean energy technologies. Securing access to key critical minerals such as lithium, cobalt, nickel and rare earth metals is critical for building resilient and indigenous supply chains for clean energy technologies.

    Background 

    • Concerns over the pricing and availability of oil and gas in the wake of the Ukraine crisis continue to fuel global policy debates on energy security. However, the fragility of clean energy supply chains obscures pathways for countries to reduce dependence on fossil fuel.
    • Imported inflationary pressures through exposure to volatile oil and gas markets also pose risks to macroeconomic growth and stability, particularly for India, import ­dependent for around 85% of its oil and half of its gas needs.

    Minerals

    What are Critical Minerals?

    • Critical minerals are elements that are the building blocks of essential modern-day technologies, and are at risk of supply chain disruptions.
    • These minerals are now used everywhere from making mobile phones, computers to batteries, electric vehicles and green technologies like solar panels and wind turbines.
    • Based on their individual needs and strategic considerations, different countries create their own lists.
    • However, such lists mostly include graphite, lithium, cobalt, rare earths and silicon which is a key mineral for making computer chips, solar panels and batteries.
    • Aerospace, communications and defence industries also rely on several such minerals as they are used in manufacturing fighter jets, drones, radio sets and other critical equipment.

    Why is this resource critical?

    • As countries around the world scale up their transition towards clean energy and digital economy, these critical resources are key to the ecosystem that fuels this change.
    • Any supply shock can severely imperil the economy and strategic autonomy of a country over-dependent on others to procure critical minerals.
    • But these supply risks exist due to rare availability, growing demand and complex processing value chain.
    • Many times the complex supply chain can be disrupted by hostile regimes, or due to politically unstable regions.
    • They are critical as the world is fast shifting from a fossil fuel-intensive to a mineral-intensive energy system.

    MineralsWhat are Rare Earth Metals?

    • The rare earth elements (REE) are a set of seventeen metallic elements. These include the fifteen lanthanides on the periodic table plus scandium and yttrium.
    • Rare earth elements are an essential part of many high-tech devices.
    • They have a wide range of applications, especially high-tech consumer products, such as cellular telephones, computer hard drives, electric and hybrid vehicles, and flat-screen monitors and televisions.
    • Significant defense applications include electronic displays, guidance systems, lasers, and radar and sonar systems.
    • Rare earth minerals, with names like neodymium, praseodymium, and dysprosium, are crucial to the manufacture of magnets used in industries of the future, such as wind turbines and electric cars.

    Applications of REMs in various fields:

    • Electronics: Television screens, computers, cell phones, silicon chips, monitor displays, long-life rechargeable batteries, camera lenses, light-emitting diodes (LEDs), compact fluorescent lamps (CFLs), baggage scanners, marine propulsion systems.
    • Defense Sector: Rare earth elements play an essential role in our national defense. The military uses night-vision goggles, precision-guided weapons, communications equipment, GPS equipment, batteries, and other defense electronics. These give the United States military an enormous advantage. Rare earth metals are key ingredients for making the very hard alloys used in armored vehicles and projectiles that shatter upon impact.
    • Renewable Energy: Solar panels, Hybrid automobiles, wind turbines, next-generation rechargeable batteries, bio-fuel catalysts.
    • Manufacturing: High strength magnets, metal alloys, stress gauges, ceramic pigments, colorants in glassware, chemical oxidizing agent, polishing powders, plastics creation, as additives for strengthening other metals, automotive catalytic converters
    • Medical Science: Portable x-ray machines, x-ray tubes, magnetic resonance imagery (MRI) contrast agents, nuclear medicine imaging, cancer treatment applications, and for genetic screening tests, medical and dental lasers.
    • Technology: Lasers, optical glass, fiber optics, masers, radar detection devices, nuclear fuel rods, mercury-vapor lamps, highly reflective glass, computer memory, nuclear batteries, high-temperature superconductors.

    DO YOU KNOW?

    Metals such as cadmium, lead are often used in manufacturing plastic and over time can enter coastal waters. These are acutely harmful for coastal wildlife and humans.Different kinds of plastic releases different kinds of metals  that may release when exposed to water and UV lights.

    What are the challenges in accessing Critical minerals?

    • Deposits in geopolitically sensitive regions: Reserves are often concentrated in regions that are geopolitically sensitive or fare poorly from an ease of doing business perspective.
    • Controlled production:  A portion of existing production is controlled by geostrategic competitors. For example, China wields considerable influence in cobalt mining in the Democratic Republic of Congo through direct equity investments and its Belt and Road Initiative.
    • Agreements in advance from outside: Future mine production is often tied up in off take agreements, in advance, by buyers from other countries to cater to upcoming demand.

    MineralsA step taken by Indian government for sourcing strategic minerals

    • For sourcing of strategic minerals, the Indian government established Khanij Bidesh  India Limited (KABIL) in 2019 with the mandate to secure mineral supply for the domestic market.

    What is Khanij Bidesh India Limited (KABIL)?

    • Joint venture: A joint venture company namely Khanij Bidesh India Ltd. (KABIL)  set up with the participation of three Central Public Sector Enterprises namely, National Aluminium Company Ltd.(NALCO), Hindustan Copper Ltd.(HCL) and Mineral Exploration Company Ltd. (MECL).
    • Objective: The objective of constituting KABIL is to ensure a consistent supply of critical and strategic minerals to Indian domestic market. While KABIL would ensure mineral security of the Nation, it would also help in realizing the overall objective of import substitution.

    Suggestions based on Council on energy environment and water (CEEW) to achieve the objective of KABIL

    • Mapping out the domestic requirement: Figure out the mineral requirements of the domestic industry. This could best be accomplished by a task force which includes the ministries of power, new and renewable energy, heavy industry, and science and technology.
    • Clear road map for indigenous manufacturing: Five­ year road maps with clear targets for deployment and indigenous manufacturing across clean energy applications would provide visibility to domestic investors. Assess the technology mix that would support this deployment. On this basis, determine the quantities of minerals necessary to support indigenous manufacturing.
    • Better coordination between different stakeholders: Coordinate with the domestic industry to determine where strategic interventions by the government would be necessary for the purpose.KABIL could collaborate with industry to bolster its market intelligence capabilities for tracking global supply­ side developments.
    • Preemptive agreements through KABIL for reliable supply: If conducive investment opportunities don’t exist KABIL should pre­emptively sign off take agreements with global  mineral suppliers to secure future production. It could aggregate reliable supply of minerals for domestic requirements  and sign back ­to­ back sales agreements with the domestic industry .Such large scale centralised  national procurement could be done at preferential terms.
    • Joint Investment In mining assets to mitigate investment risks: The government should jointly invest in mining assets with geostrategic partners. KABIL should make equity investments in mining jurisdictions that private sector investors may deem too risky. It should leverage government­ to­ government partnerships to mitigate investment risks. This could be done through joint investments with sovereign entities from geostrategic partners or private sector entities with expertise in specific geographies.
    • Finding the alternatives: Technologies such as sodium ­ion batteries could reduce requirements for sourcing minerals from beyond India’s borders.  It could also propose co­ development of such technologies with geostrategic partners.
    • Developing policies on sustainable urban mining and recycling: Develop policies on urban mining aimed at recycling mineral inputs from deployments that have completed their useful life. These could help further reduce dependence on international sourcing.

    Conclusion

    • Besides Ukraine, other potential geopolitical flash points also exist against a backdrop of dwindling multilateral cooperation. India must act immediately and decisively to mitigate  these risks  to its energy security.

    Mains Question

    Q.What are critical minerals? Why the critical minerals are so important? What steps India can take to achieve the objective of Atmanirbhar Bharat in domestic mineral supply and thereby mitigating energy security risks?

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  • India’s Space economy

    India’s space economy is likely to be worth nearly $13 billion by 2025, with the satellite launch services segment set to witness the fastest growth due to increasing private participation.

    About the report

    • The report is released by the Indian Space Association (ISpA) and Ernst & Young.
    • It says that the growing demand for smaller satellites is set to boost satellite manufacturing in the country.
    • It will attract global start-ups in the sector to help incubate space tech companies to India.

    Key highlights

    • India’s space economy was pegged at $9.6 billion in 2020 and is expected to touch $12.8 billion by 2025.
    • In dollar terms, the satellite services and applications segment would be the largest with a turnover of $4.6 billion by 2025, followed by the ground segment at $4 billion.
    • Satellite manufacturing stands at $3.2 billion and launch services at $1 billion.
    • The launch services segment was pegged at $600 million in 2020 and is projected to grow at a compound annual growth rate of 13 percent to reach $1 billion by 2025.

    Key drivers of this demand

    • India has of over 100 space tech start-ups with investments in the segment touching $68 million in 2021.
    • The availability of low-cost satellite launch vehicles coupled with mass production will lead to demand from customers around the world.
    • Several companies are utilising cutting-edge technologies to develop innovative launch solutions in India.

    Where does India stand in the global space market?

    • As per SpaceTech Analytics, India is the sixth-largest player in the industry internationally having 3.6% of the world’s space-tech companies (as of 2021).
    • US holds the leader’s spot housing 56.4% of all companies in the space-tech ecosystem.
    • Other major players include UK (6.5%), Canada (5.3%), China (4.7%) and Germany (4.1%).
    • The Indian Space Industry was valued at $7 billion in 2019 and aspires to grow to $50 billion by 2024.

    Why does India matter in the global space-tech market?

    • The country’s standout feature is its cost-effectiveness.
    • India holds the distinction of being the first country to have reached the Mars’ orbit in its first attempt and at $75 million — way cheaper than Western standards.

    Future prospects of India’s private ‘Space’

    Ans. India may lead in space junk management

    • Almost 60-odd start-ups had registered with the Indian Space Research Organisation (ISRO) this year.
    • A majority of them were dealing in projects related to space debris management.
    • As space becomes more congested with satellites, the technology would thus help in managing ‘space junk’ (debris of old spacecraft and satellites).

    How is the private sector’s involvement regulated in India?

    • In June 2020, the Union government announced reforms in the space sector enabling more private players to provide end-to-end services.
    • The central idea was to bring forth a predictable policy and regulatory environment for them and additionally provide access to ISRO facilities and assets to improve their capacities.

    (1) Establishment of IN-SPACe

    • An announcement for the establishment of the Indian National Space Promotion and Authorisation Centre (IN-SPACe) was made.
    • It was mandated the task of promoting, authorising and licensing private players to carry out space activities.
    • As an oversight and regulatory body, it is responsible for devising mechanisms to offer sharing of technology, expertise, and facilities free of cost to promote non-government private entities (NGPEs).
    • IN-SPACe’s Monitoring and Promotion Directorate oversees NGPE’s activities as per prescribed regulations and reports back in case any corrective actions or resolutions are required.
    • ISRO shares its expertise in matters pertaining to quality and reliability protocols, documentation, and testing procedure through IN-SPACe’s ‘interface mechanism’.

    (2) Establishment of NSIL

    • Additionally, constituted in March 2019, New Space India Ltd (NSIL), is mandated to transfer the matured technologies developed by the ISRO to Indian industries.
    • All of them are under the purview of the Ministry of Defence.
    • Private sector’s involvement in the long term, as with other commercial sectors, is believed to help spur investment and expertise in the realm which is capital-intensive and demands high technology.

    Where does India lack?

    Ans. Undisputedly, it is the finances

    • The US and Canada were the highest receivers of space-related investment in 2021.
    • The US’s space budget was $41 billion in 2021, $23.3 billion of which was focused on NASA.
    • India’s total budgetary allocation for FY2022-23 towards the Department of Space was ₹13,700 crore ($172 million).
    • Further, as per Tracxn data, funding into the sector’s start-ups (in India) nearly tripled to $67.2 million on a year-over-year basis in 2021.

     

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  • India’s Dark Sky Reserve

    Dark Sky ReserveContext

    • The union territory of Ladakh will host India’s first Dark Sky Reserve which will be set up in Hanle area in the next three months. The Dark Sky Reserve is being built as part of Ladakh’s high-altitude Changthang Wildlife Sanctuary.

    What is Dark Sky Reserve (DSR)?

    • Definition of Dark Sky Reserve: The International Dark Sky Association (IDSA) defines an international dark sky reserve (IDSR) as “a public or private land of substantial size (at least 700 km², or about 173,000 acres) possessing an exceptional or distinguished quality of starry nights and nocturnal environment, and that is specifically protected for its scientific, natural, educational, cultural heritage, and/or public enjoyment.

    What is Core Area of Dark Sky Reserve?

    • A dark sky reserve requires a “core” area that has clear sky without any light pollution, which can enable telescopes to see the sky in its natural darkness.

    Dark Sky Reserve

    Why Ladakh is chosen as ideal location for DSR?

    • Ladakh is ideal for long-term observatories and dark-sky sites because of its large arid area, high elevation, and sparse population, extreme cold and minimum temperature drops to minus 40 degree celcius.
    • The Changthang wildlife Sanctuary, the DSR site is situated around 4,500 metres above sea level, which makes it a perfect host for telescopes.

    Who is managing India’s DSR?

    • The Department of Science and Technology and Indian Institute of Astrophysics (IIA) in Bengaluru are providing support for the facility. The IIA already manages the Indian Astronomical Observatory (IAO) complex in Hanle, Ladakh.

    What are the International standards for DSR?

    • International Dark Sky Association’s Recognition: The IDSA recognizes and accredits dark-sky areas worldwide, in three categories. The Mont Mégantic Observatory in Quebec is the first such site to be recognized (in 2007) as an International Dark Sky Reserve.
    • Categorical Certification: Individuals or groups can nominate a site for certification to the International Dark Sky Association (IDSA). There are five designated categories, namely International Dark Sky parks, communities, reserves, sanctuaries and Urban Night Sky Places.
    • Global Recognition: The certification process is similar to that of a site being awarded the UNESCO World Heritage Site tag or getting recognised as a Biosphere Reserve. Between 2001 and January 2022, there have been 195 sites recognised as International Dark Sky Places globally, the IDSA said.
    • Dark Sky Park: IDSA recognized Natural Bridges National Monument in Utah as the world’s first International Dark Sky Park.
    • Dark Sky Sanctuary: In 2015, the IDSA introduced the term “Dark Sky Sanctuary” and designated the Elqui Valley of northern Chile as the world’s first International Dark Sky Sanctuary. The Gabriela Mistral Dark Sky Sanctuary is named after a Chilean poet.

    Dark Sky ReserveWhat is India’s objective with DSR?

    • To promote AstroTourism: The primary objective of the proposed Dark Sky Reserve is to promote astronomy tourism in a sustainable and environment-friendly manner. Scientific methods will be used here to preserve the night sky from ever-increasing light pollution.
    • To offer clear skies for observations: With metros, cities and peripheral areas experiencing light pollution and remaining constantly lit up, there are diminishing areas that offer a view of clear skies on cloudless nights.
    • For training purpose: In the pilot phase, the Indian Institute of Astrophysics (IIA),has procured ten small and easy-to-handle telescopes and light-reflecting shields. IIA’s scientists and outreach experts will identify locals and train them to use these telescopes.
    • Sky gazing and a boost for village economy: This will include basic sky gazing, identification of constellations, and locating the pole star, among others. These telescopes will be installed at the homestays, which is a popular option for tourist accommodation in Ladakh.

    Dark Sky ReserveConclusion

    • The Dark Sky Reserve is likely to boost Astro tourism in India where there has been no such reserve. Once set up, the reserve will be the highest-located site in the country for infrared, gamma-ray, and optical telescopes.

    Mains Question

    Q. What are the Dark Sky Reserves? How DRS will help in astronomical research and observations in India?

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  • Vyommitra Humanoid to undergo pre-flight tests

    vyommitra

    Vyommitra, the humanoid designed and developed by the ISRO to fly aboard unmanned test missions ahead of the Gaganyaan human space-flight mission, is undergoing pre-flight ground tests at the ISRO Inertial Systems Unit (IISU).

    Vyommitra

    • The AI-based robotic system is developed at a robotics lab at the Vikram Sarabhai Space Centre (VSSC) at Thumba, Thiruvananthapuram.
    • Vyommitra will be used for an unmanned flight of ISRO’s GSLV III rocket in December 2020, which, along with a second unmanned flight in July 2021.
    • This will serve as the test of ISRO’s preparedness for its maiden manned space mission, Gaganyaan, being targeted for 2022 to mark 75 years of India’s independence.

    Functions of the humanoid

    • Vyommitra, equipped with a head, two arms and a torso, is built to mimic crew activity inside the crew module of Gaganyaan.
    • Attaining launch and orbital postures, responding to the environment, generating warnings, replacing carbon dioxide canisters, and operating switches, monitoring of the crew module, receiving voice commands, and responding via speech (bilingual) are among the functions listed.
    • It will have a human-like face, with lips synchronized for movement to mimic speech.
    • Once it is fully developed, Vyommitra will be able to use the equipment on board the spacecraft’s crew module, like safety mechanisms and switches, as well as receive and act on commands sent from ground stations.

    What is the recent development?

    • The IISU has successfully integrated it with a computer “brain”, which enables it to “read” control panels aboard the unmanned test flights and communicate with the ISRO ground stations.
    • It has a certain level of intelligence.
    • It is intended to operate and read the display panels and communicate back to ground station using its own voice.

    Back2Basics: Gaganyaan Mission

    • Gaganyaan is crewed orbital spacecraft intended to be the formative spacecraft of the Indian Human Spaceflight Programme (IHSP).
    • The IHSP was initiated in 2007 by ISRO to develop the technology needed to launch crewed orbital spacecraft into low Earth orbit.
    • ISRO had been working on related technologies and it performed a Crew Module Atmospheric Re-entry Experiment and a Pad Abort Test for the mission.
    • If completed in meantime, India will become the fourth nation to conduct independent human spaceflight after Russia, US, and China.

     

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  • Nobel for work on Click Chemistry

    click

    Scientists Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless won the 2022 Nobel Prize in Chemistry on for discovering reactions that let molecules snap together to create desired compounds and that offer insight into cell biology.

    What the scientists worked on?

    • Sharpless came up with the term ‘Click Chemistry’ and worked extensively on it,
    • Meldal came up with a special chemical structure called ‘Triazole’ which has many significant applications, and
    • Bertozzi took the next step of developing click reactions that could work inside living organisms — ‘bioorthogonal’ reactions take place living systems without interfering with native biochemical processes.

    What is Click Chemistry?

    • Chemists often try to recreate complex chemical molecules found in nature, and this has applications, among other things, in the field of medicine – how to target and block pathogens in cells.
    • However, this process can be complicated and time-consuming.
    • Instead of trying to wrangle reluctant carbon atoms into reacting with each other, Barry Sharpless encouraged his colleagues to start with smaller molecules that already had a complete carbon frame.
    • If chemists choose simple reactions – where there is a strong intrinsic drive for the molecules to bond together – they avoid many of the side reactions, with a minimal loss of material.

    Applications of click chemistry

    • Meldal through his experiments came up with the useful chemical structure called triazoles, whch are stable and are found in pharmaceuticals, dyes and agricultural chemicals.
    • He also found that the reaction he used could bind together numerous different molecules.
    • Bertozzi, using the work of Sharpless and Meldal, came up with an efficient and innovative method to map glycans, which are carbohydrate-based polymers made by all living organisms.

     

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  • Quantum Technology : Next generation Computers are achievible

    QuantumContext

    • The Nobel Prize committee decided to honour three scientists Alain Aspect of France, John Clauser of the US, and Anton Zeilinger of Austria for their work in domain quantum physics.

    What is the contribution of these three scientists?

    • Together, these three have made seminal contributions to not just the foundations of quantum theory but also to efforts that have now enabled the possibility of a wide range of applications.
    • Their experiments have conclusively established that the ‘entanglement’ phenomenon observed in quantum particles was real, not a result of any ‘hidden’ or unknown forces.

    What is the Significance of this Discovery?

    • Wide applications: It could be utilised to make transformative technological advances in computing, hack-free communications, and science fiction-like concept of ‘teleportation’.

    Quantum What is Quantum Theory?

    • Subatomic level: Quantum theory is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles.It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.
    • Different from conventional physics: Quantum mechanics differs from classical physics in that energy, momentum, angular momentum.

    Development in Quantum Theory so far

    • Planck’s assumption: In 1900, Planck made the assumption that energy was made of individual units, or
    • Albert Einstein’s theory : In 1905, Albert Einstein theorized that not just the energy, but the radiation itself was quantized in the same manner.
    • Louis de Broglie theory: In 1924, Louis de Broglie proposed that there is no fundamental difference in the makeup and behaviour of energy and matter; on the atomic and subatomic level either may behave as if made of either particles or waves. This theory became known as the principle of wave-particle duality: elementary particles of both energy and matter behave, depending on the conditions, like either particles or waves (wave-particle duality).
    • Heisenberg proposed: In 1927, Werner Heisenberg proposed that precise, simultaneous measurement of two complementary values – such as the position and momentum of a subatomic particle – is impossible. Contrary to the principles of classical physics, their simultaneous measurement is inescapably flawed; the more precisely one value is measured, the more flawed will be the measurement of the other value. This theory became known as the uncertainty principle, which prompted Albert Einstein’s famous comment, “God does not play dice.”

    QuantumWhat is Entanglement?

    • Entanglement was another of several weird properties exhibited by these tiny particles. Two particles, having ‘interacted’ with each other at some stage, were found to have got ‘entangled’ in a way that the behaviour of one produced an instantaneous reaction in the other even if the two were no longer connected in any way and were separated by very large distances.
    • The entanglement property to open up new technological possibilities. first time that it was possible to ‘teleport’ the quantum states of a particle to another location without the particle moving anywhere and without a medium.

    What is Superposition?

    • It’s a phenomenon where, a particle exists simultaneously at multiple locations, known as superposition. The chance of finding the particle at any given place was dictated by probabilistic calculations, and once it was found, or observed, at one location, it ceased to exist at all other places.

    What was the Einstein’s assessment?

    • Special theory of relativity: Einstein’s Special Theory of Relativity prohibited any signal from travelling faster than the speed of light. The seemingly instantaneous communication due to entanglement had the danger of further unravelling the foundations of physics.
    • Spooky behaviour: Einstein describes the strange behaviour by quantum particles as ‘spooky’.
    • Speed of light: One major concern of Einstein, that entanglement allows for transmission of information at speeds faster than light, was not entirely accurate.When an operation is performed on one of the entangled particles, there is an instantaneous reaction in the other.
    • Communication problem: There is no way for the observer at the other end to know the reaction has happened. The observer has to be made aware of the operation having been performed, and this happens only through classical communication channels limited by the speed of light restriction.

    QuantumConclusion

    • The entanglement property is now being utilised to build the next generation of computers, called quantum computers, which exploit the quantum behaviour of particles to overcome challenges considered as unsurmountable. It is being used to create secure communication algorithms that would be immune to hacking.

    Mains Question

    Q.What is the quantum theory? How it is different from classical theory of physics? How entanglement property is used in various applications?

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  • Medicine Nobel for Work on Human Evolution

    Swedish scientist Svante Paabo won the Nobel Prize in medicine for his discoveries on human evolution that provided key insights into our immune system and what makes us unique compared with our extinct ancestors.

    Svante Paabo: His work, explained

    • Svante Paabo’s seminal discoveries provide the basis for exploring what makes us uniquely human.
    • Hominins refer to the now-extinct species of apes that are believed to be related to modern humans, as well as modern humans themselves.
    • Paabo found that gene transfer had occurred from these now extinct Hominins to Homo sapiens following the migration out of Africa around 70,000 years ago.
    • This ancient flow of genes to present-day humans has physiological relevance today, for example affecting how our immune system reacts to infections.
    • Paabo established an entirely new scientific discipline, called paleogenomics that focuses on studying the DNA and genetic information of extinct hominins through reconstruction.

    What is the relation between evolution and biology?

    • Paabo’s discoveries have established a unique resource, which is utilized extensively by the scientific community to better understand human evolution and migration.
    • We now understand that archaic gene sequences from our extinct relatives influence the physiology of present-day humans.

    How did Paabo establish the linkage?

    • Paabo extracted DNA from bone specimens from extinct hominins, from Neanderthal remains in the Denisova caves of Germany.
    • The bone contained exceptionally well-preserved DNA, which his team sequenced.
    • It was found that this DNA sequence was unique when compared to all known sequences from Neanderthals and present-day humans.
    • Comparisons with sequences from contemporary humans from different parts of the world showed that gene flow, or mixing of genetic information among a species, had also occurred between Denisova and Homo sapiens – the species of modern-day humans.
    • This relationship was first seen in populations in Melanesia (near Australia) and other parts of South East Asia, where individuals carry up to 6% Denisova DNA.
    • The Denisovan version of the gene EPAS1 confers an advantage for survival at high altitudes and is common among present-day Tibetans.

    What are the challenges in carrying out such research?

    • There are extreme technical challenges because with time DNA becomes chemically modified and degrades into short fragments.
    • The main issue is that only trace amounts of DNA are left after thousands of years, and exposure to the natural environment leads to contamination with DNA.

    Back2Basics: Neanderthal Man

    neanderthal

    • Neanderthals were humans like us, but they were a distinct species called Homo Neanderthalensis.
    • Together with an Asian people known as Denisovans, Neanderthals are our closest ancient human relatives. Scientific evidence suggests our two species shared a common ancestor.
    • Current evidence from both fossils and DNA suggests that Neanderthal and modern human lineages separated at least 500,000 years ago. Some genetic calibrations place their divergence at about 650,000 years ago.
    • The best-known Neanderthals lived between about 130,000 and 40,000 years ago, after which all physical evidence of them vanishes.
    • They evolved in Europe and Asia while modern humans – our species, Homo sapiens – were evolving in Africa.

     

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  • Satellite Broadband Services in India

    satellite broadband

    The race for providing satellite broadband connectivity in India is heating up as companies like Jio, Oneweb, Hughes and Tata-backed Nelco are preparing to provide these services.

    Recent developments on satellite broadband

    • Earlier last month, Hughes Communications India (HCI), a satellite internet service provider launched India’s first high throughput satellite (HTS) broadband service powered by ISRO satellites.
    • It used Ku-band capacity from ISRO GSAT-11 and GSAT-29 satellites with Hughes JUPITER Platform ground technology to deliver high-speed broadband.

    What is a Satellite Broadband Service?

    • Broadband essentially means a wide bandwidth, high-capacity data transmission technique, using a broad range of frequencies.
    • In the case of a satellite broadband service, broadband services are delivered directly via satellites instead of optical fibre or mobile networks.

    How is it different from existing broadband services?

    (1) Transmission of data over space

    • The main difference is that aggregation of all the data generated and transmitted by users accessing the internet happens in the sky or space that is in the satellite.
    • In contrast to this, if we take a look at cellular networks, aggregation happens on the ground, in the base stations through optical fibre, cable, etc.

    (2) Access to the services

    • Another key difference is that to access satellite services, we will need a dish antenna just like we do in the case of TV services, so a normal mobile handset cannot directly access satellite broadband.
    • For a user to access satellite broadband a clear line of sight to the satellite is needed.

    Advantages offered

    • Speed: The main advantage of satellite services is that you can provide high-speed internet services in remote areas, where terrestrial networks cannot be set up.
    • Eliminating terrain shortcomings: For instance in the middle of the ocean, in rugged unreachable terrain such as the Himalayas — even as remote as on top of Mt. Everest, satellite broadband will work.
    • Curbing the divide: In a country with a wide range of geographies such as India, 20-25 per cent of the Indian population resides in areas where it is extremely hard for terrestrial operators to install internet facilities.

    Present scope in India

    • Currently, VSAT operators offer satellite broadband services at a very limited capacity in India in a few remote locations.
    • The utilisation of satellite services for broadband services is restricted to minimal applications — such as disaster management, defence, scientific locations, etc.

    How India (undoubtedly, the ISRO) has geared up for adapting to this?

    • ISRO’s high throughput GEO (Geostationary Equatorial Orbit) satellites – GSAT-11 and GSAT-29 a few years ago, can beam high-speed internet up to 300 gigabytes per second.
    • Apart, many global players look to provide satellite broadband services in India by deploying low earth orbit (LEO) satellites.
    • They are launching a constellation of satellites very close to the earth’s surface in order to reduce the latency of satellite broadband.
    • Presently, Elon Musk’s Starlink, Sunil Bharti Mittal-backed OneWeb and the Canadian satellite major Telesat are eyeing the Indian market.

    When will these services be available in India?

    • If things go as planned and the players get the necessary regulatory clearance, these services could become operational in India as soon as next year.
    • OneWeb wants to provide backhaul services to telcos by mid-next year, while Starlink wants to provide direct broadband services by December 2022, aiming at 2 lakh terminals.
    • Telesat, on the other hand, is eyeing an India launch by 2024.

    How much will it cost?

    • The provision of direct broadband services through satellites will be pricey.
    • According to a user guide for India, provided by Starlink, the first-year cost of a Starlink terminal will be ₹1,58,000 after which it will cost around ₹1,15,000 every year.

    Has it been rolled out in other parts of the world?

    • Starlink is operational in 14 countries, with 1 lakh terminals shipped to North America and Europe.
    • Starlink and OneWeb are still launching satellites that will be a part of their LEO constellation.

    What are the major hurdles?

    • Latency: Additionally, satellite Internet latency can be a significant problem. This can be a matter of only a second or two, but a delay on that scale can seriously affect real-time applications like video chats.
    • Spatial hurdles: Users might not be able to connect to a satellite at all if they are located under heavy foliage or surrounded by other obstructions.
    • Limited bandwidth: Satellite data transfer provides very slow Internet speeds and limited satellite bandwidth because of the distances the signals have to travel and all the potential obstacles in between.
    • Connection times: This can also be impacted by your surroundings, the length of your message, and the status and availability of the satellite network.
    • High input cost: This along with the complex equipment like satellite dishes being used to avail these services makes the service expensive.

    Perspective analysis: Why is India itself lagging in this race?

    • Globally, companies are striving to build and deploy “mega-constellations” of hundreds or thousands of satellites for this.
    • Despite India’s impressive achievements in the space sector, growth has been at snail’s pace.
    • Satellite broadband services in India remains primarily for the B2B sector with a market size of roughly $100 million.

    Reason’s for India’s slow pace

    • Upgrade issues: The Indian networks are still using conventional satellites despite the proliferation of high throughput satellites world-over.
    • Lack of domestic industries: There is a lack of domestic participation for building space infrastructure despite ‘Make in India’ mission.

    Way forward

    • An urgent re-look at deregulation and privatization is required.
    • Advanced space-faring nations have privatized most of these blocks in the value chain.
    • There is a need for building systems to help nurture the industry and create an extensive ecosystem to generate a ‘Space 2.0’ in India.

     

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  • MeFSAT Database for Medicinal Fungi

    mefsat

    An analytical study of medicinal fungi using MeFSAT carried out by researchers from Chennai shows that some chemicals they secrete may find use as novel drugs.

    What is MeFSAT?

    • MeFSAT (Medicinal Fungi Secondary Metabolites and Therapeutics) is a database that compiles information on 184 medicinal fungi, including mushrooms.
    • It is a manually curated database that compiles information on secondary metabolites and reported therapeutic uses of medicinal fungi from published research articles and specialized books on the subject.

    Why in news?

    • Chennai-based researchers analysed the structure of 1,830 secondary metabolites of medicinal fungi.
    • Secondary metabolites are chemical compounds that fungi produce when they are stressed.
    • They enhance the fungus’ ability to survive.

    What are medicinal fungi?

    • Medicinal fungi belongs to two taxonomic divisions namely, basidiomycota and ascomycota.
    • Mushrooms belong to the basidiomycota division. An example is Agaricus bisporus, the button mushroom, which can be consumed.
    • Fungi belonging to the ascomycota division are generally not mushrooms.

    Examples of fungi-based medicines

    • Cordycepin, a secondary metabolite produced by Cordyceps species of fungus, is known to have anti-tumor properties.
    • Not only cordycepin, in general, but several secondary metabolites are also known to be beneficial for humans in terms of both therapy and health.

     

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