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  • Science and Technology in India – Cover Story

    Science and Technology in India

    As India celebrating 75 years of its formation of Republic, we encapsulate some defining moments of the nation’s journey in the field of science and technology

    Today, India is considered as one of the top five superpowers on the planet, with Indian scientists contributing enormously to facilitating the country’s rapid development and progress. While it was the Prime Minister Pandit Jawaharlal Nehru who initiated several reforms in higher education and set up pioneering science and technology institutions like TIFR, DRDO, BARC, IITs, DST… the policies of subsequent governments ensured that we continued to stay on the growth and development track. The present-day government under Prime Minister Shri Narendra Modi is giving significant emphasis to creation of an ‘Atmanirbhar Bharat’ focusing on creation of a strong indigenous R&D and manufacturing infrastructure across the country.

    At this junction, we look back in history at some of the major milestones achieved by the country in the area of science and technology:

    1945: Tata Institute of Fundamental Research (TIFR) – Dr. Homi Jehangir Bhabha asked Sir Dorabji Tata Trust for help and cooperation to begin nuclear research program in India. In 1945, Tata Institute of Fundamental Research (TIFR) was born, and thus started India’s journey in the world of nuclear energy development.

    1954: India’s first Atomic Establishment at Trombay – Under the leadership of Dr. Homi Bhabha, the Atomic Energy Establishment, Trombay (AEET) was established in 1954. Later, the institution was renamed as BARC in 1967 to help consolidate all research and technology activities. Today, BARC is India’s premier research and development facility in nuclear science and engineering, giving the country a strategic edge in nuclear power.

    1956: India’s first atomic reactor ‘Apsara’– This first nuclear reactor was designed by BARC and built with assistance from United Kingdom. Apsara is a light water swimming pool-type reactor with a maximum power output of one megawatt thermal (MWt), and it first went critical on August 4, 1956. The reactor is utilised for various experiments including neutron activation analysis, radiation damage studies, forensic research, neutron radiology, and shielding experiments.

    1958: Formation of Defence Research and Development Organisation – DRDO was formed in 1958 from the amalgamation of the then already functioning Technical Development Establishment (TEDs) of the Indian Army and the Directorate of Technical Development & Production (DTDP) with the Defence Science Organisation (DSO). It has a network of laboratories engaged in developing defence technologies covering various fields like aeronautics, armaments, electronics, land combat engineering, life science, materials, missiles and naval systems.

    1959: Launch of Television – Television was introduced in India on September 15, 1959 in Delhi, and the programs were broadcasted twice a week for an hour a day. Initially, the topics covered were community health, citizen’s duties and rights, and traffic and road sense, but in 1961 the broadcasts were expanded to include school educational television project. The first major expansion began in 1972, when a second television station was opened in Bombay, and it was followed by stations in Srinagar, Amritsar, Calcutta, Madras and Lucknow.

    1964: The first Indian jet trainer – The two seat intermediate jet trainer HAL HJT-16 Kiran (Ray of Light) were built by Hindustan Aeronautics Limited (HAL) on September 4, 1964. The jet called Kiran-I was powered by the Rolls Royce Viper Mk 11 delivered to the Indian Air Force in March 1968. Later the trainer jet was upgraded with hardpoints under each wing for weapon training and redesignated as the Kiran-IA.

    1969: Indian Space Research Organisation (ISRO) – Established in 1969, ISRO is India’s pioneer space exploration agency with a vision to develop and harness space technology in national development. Over the years, ISRO has gained place among the elite space agencies in the world owing to its unique and cost effective technologies. Recently, it conducted several remarkable space probes like Chandrayaan – 1 lunar orbiter, Mars Orbiter Mission (Mangalyaan – 1) and ASTROSAT space observatory.

    1974: Pokhran – India’s first successful nuclear bomb – After Indira Gandhi had authorised scientists at BARC to design nuclear device in September 1972, it took nearly two-years of preparation to conduct the first nuclear test. Code named ‘Smiling Buddha’ the test was conducted on May 18, 1974 in the deserts of Pokhran, Rajasthan. This made India the world’s sixth nuclear power country.

    1975: Launch of Aryabhata – Named after the ancient Indian astronomer – Aryabhata, the country launched its first satellite into space on April 19, 1975. The satellite was constructed by the Indian Space Research Organisation (ISRO) and was launched into space aboard a Kosmos-3M launch vehicle from Kapustin Yar, the then Soviet Union’s rocket launch and development site.

    1978: India’s first test-tube baby – On October 3, 1978, Ms. Bela Agrawal delivered India’s first test-tube baby under the medical care and supervision of Dr. Subhash Mukhopadhyay. The child later named ‘Durga’ was conceived via in-vitro fertilisation, and the event took place just 67 days after the world’s first test-tube baby – Marie Brown, was born.

    1982: Launch of India’s first satellite – Insat-1A was a multi-purpose satellite system designed to provide two high power TV broadcast and twelve telecommunications national coverage transponders, in addition to providing meteorological services. The Insat-1A was launched by a Delta 3910 launch vehicle on April 10, 1982 but was abandoned on September 6, 1983 when its attitude control propellant was exhausted.

    1983: Research base at the South Pole – The country established its first scientific base station in Antarctica named Dakshin Gangotri. The station was built in record time of eight weeks by an 81-member team, and was powered by solar energy. The base was used to conduct scientific tests on radio transmission, physical oceanography, chemical analyse of freshwater lakes in the areas, geomagnetism, geology and glaciology.

    1984: First Indian in Space – The Indian Air Force Squadron Leader Rakesh Sharma spent eight days aboard the Salyut 7 space station along with two Soviet Cosmonauts. They had departed on April 2, 1984 in a Soyuz T-11 spacecraft. This manned mission saw Sharma conduct several scientific and technical studies in the area of biomedicine, remote sensing and construction of hydro-electric power station in the Himalayas.

    1988: Launch of C-DAC – In 1987, when US President Ronald Reagan refused to sell their supercomputers CRAY, India decided to develop it indigenously. In 1988, the Centre for Development of Advanced Computing or C-DAC was launched under the leadership of Dr. Vijay Bhatkar. With a deadline of three years and a budget of around Rs. 30 crore, India’s first super computer PARAM 800 was developed in 1991.

    1991: DNA Finger Printing – During his study of evolution of sex chromosomes in a species of snake, Dr. Lalji Singh observed and recorded specific pattern in the DNA sequences, which he named the ‘Bkm sequences’. He made use of this technique to identify people based on specific characteristic of their DNA, and was able to solve several court cases over disputed paternity and criminal cases. He pioneered the concept of ‘DNA fingerprinting’ in India.

    1993: Launch of Pentium Chip – Vinod Dham is popularly known as the ‘Father of the Pentium Chip’ for his contribution to the development of highly successful Pentium processors from Intel. Responding to consumer’s demand of computers with faster processing speed, Intel changed the game with the launch of its breakthrough chip – the Pentium.

    1994: India’s first heart transplant surgery – On August 3, 1994 a team of 20 surgeons led by Dr. Panangipalli Venugopal performed India’s first successful human to human heart transplant at the All Indian Institute of Medical Sciences (AIIMS), New Delhi. The entire operation took nearly 59 minutes and the patient lived for at least 15 more years.

    1998: Pokhran – II – Operation Shakti stunned the world community as India conducted a series of five nuclear weapons tests – one fusion or thermonuclear weapon, two fission devices and two sub-kiloton devices, which proved to the world India’s capability in development of nuclear arsenal. Pokhran – II was the first Indian test of a nuclear weapon after 1974.

    2000: Launch of indigenous fighter jet – Tejas, the single seat, single-engine, lightweight, high-agility supersonic fighter aircraft made its first maiden test flight aboard Indian Navy’s aircraft carrier INS Vikramaditya in January 2000. The aircraft’s design and development program was led by Aeronautical Development Agency (ADA) under the supervision of Hindustan Aeronautical Limited (HAL).

    2002: The Simputer – A low cost alternative to conventional computers, the Simputer was a self-contained, open hardware Linux-based handheld computer. It was devised to bridge the digital divide, but it did not succeed in taking off. Launched in 2002, it was the brainchild of seven scientists from the Indian Institute of Science, and was led by Dr. Swami Manohar. While it did not succeed, it remains an important home-grown development in computer manufacturing.

    2003: Kalpana Chawla space disaster – Kalpana Chawla, was the first Indian-origin woman to go space on a 16-day mission aboard NASA space shuttle Columbia. On the morning of February 1, 2003, the space shuttle was to return to Earth. At the time of launch, a briefcase-sized piece of insulation had broken off and damaged the thermal protection system of the shuttle’s wing. On its entry into the Earth’s atmosphere, the hot gas caused the break-up of the wing and the shuttle leading into an explosion killing all seven astronauts on board.

    2008: Chandrayaan – 1 – The country’s first unmanned mission into space became a reality with Chandrayaan -1’s moon mission. The mission launched on October 22, 2008 from the Satish Dhawan Space Centre – Sriharikota, Andhra Pradesh, included a lunar orbiter and an impactor. The goals of the mission included high-resolution mapping of the moon’s surface; near infrared, low energy X-ray and high-energy X-ray spectra, and preparation of a three-dimensional atlas of regions of scientific interest.

    2009: INS Arihant – After five decades of hard work, on July 26, 2009 India formally launched its first indigenously designed and constructed ballistic missile submarine (SSBN) – the INS Arihant. Powered by ISROs nuclear reactor, the submarine is designed to span the ocean depths at high speed and launch ballistic missiles and nuclear weapons in the range of over 3,000 km.

    2013: Mangalyaan – On November 5, 2013 India’s Mars Orbiter Mission lifted off from Sriharikota powered by PSLV C-25. After spending about a month in orbit around the Earth, the spacecraft Mangalyaan began its journey unto Mars. Almost a month later, the spacecraft entered the Mars’ orbit, putting India in the elite club of five countries which have successfully sent missions to Mars. At a cost of Rs. 450 crore, it was the cheapest mission to Mars, and India had succeeded in the very first attempt.

    2017: ISRO tests its first cryogenic engine – ISRO successfully tested its indigenously developed Cryogenic Upper Stage (CUS) for GSLV MkIII on February 17, 2017. It was tested for a flight duration of 640 seconds at ISRO Propulsion Complex (IPRC) in Mahendragiri, this test was carried out after a similar successful test for 50 seconds on January 25, 2017. The test is a significant milestone as it is the last in series of engine before the first flight of GSLV MkIII.

    2019: Chandrayaan – 2 Moon mission – India made a failed attempt to make a soft landing on to the lunar surface, and missed out on the opportunity of being the fourth country to successfully land on the moon, after erstwhile USSR, US and China. While the spacecraft has successfully entered the lunar orbit, the lander Vikram missed the primary landing site and went for the second. Thereafter, the visuals went missing as it had a crash landing.

    ..and Now with Mission Moon – Chandrayaan 3, we have created history by soft landing on moon and being the first country to explore the south pole of the moon..

    While each of the above scientific events have contributed in transforming India into a global superpower, there have been some major scientific revolutions based on government policies that have also played a strategic role in taking the benefits of these developmental changes to the masses:

    The Green Revolution – Post-independence, India was going through its worst agriculture disaster owing to re-occurrence of famines as the country was witnessing wide spread poverty and hunger. In 1960, the government made a policy decision to initiate the ‘Green Revolution’ under the guidance of Dr. M.S. Swaminathan. The country resorted to the use of modern agricultural methods and technology – high yielding variety (HYV) seeds, tractors, irrigation facilities, pesticides and fertilisers. This Green Revolution led to increase in food production and resulted in India becoming one of the world’s biggest agricultural producers.

    The White Revolution – After the huge success of the Green Revolution, the Indian government initiated ‘Operation Flood’ also known as the ‘While Revolution’ aimed at increasing milk production. It helped create a nationwide milk grid linking producers to consumers by eliminating the middlemen. The mission was to make India self-dependent nation in milk production. Pioneered by Dr. Verghese Kurien the revolution was a huge success, making India one of the largest producers of milk in the world.

    The Yellow Revolution – It started in 1986- 87, to multiply the production of vegetable oils, especially mustard and sesame seeds. During the Yellow Revolution, nine oil hybrid seeds – peanuts, mustard, soyabeans, saffron, sesame, sunflower, niger, flaxseeds and castor seeds were planted. Within 10-years of the launch of the program, India’s oil production doubled from 12 million tons in 1986 to 24 million tons in 1997. The Yellow Revolution also offered farmers several support incentives associated to processing equipment, irrigation equipment, fertizers, pesticides, etc.

    The Blue Revolution – Also known as ‘Neel Kranti Mission’, the Blue Revolution was launched in the year 1985 with the objective of developing, managing and promoting fisheries so as to increase farmer’s income and sustain livelihood. This revolution tripled the production of fish in India – both island and marine sector by 2020, transformed the fish and aqua industry into a modern industry using technology and processes, increased income through development of innovative marketing platforms and also ensured food security in India. Dr. Arun Kishnan and Dr. Hirlal Chaudhuri are known as Father of ‘Blue Revolution’ in India.

    The Golden Revolution – The period between 1991-2003 is known as the period of India’s ‘Golden Revolution’, as the country saw a phenomenal rise in production of honey and horticulture products under the supervision of Nirpakh Tutej, who is considered to be the father of the ‘Golden Revolution’ in India. During this period India became the world leader in the production of a variety of fruits like coconut, mangoes, cashew nuts and the second largest producer of vegetables and fruits in the world

    Conclusion Since ancient times, Science and Technology have always been an integral part of India’s culture, and Indian intellectuals have pursued higher education vigorously and engaged relentlessly in development and innovation activities. While the government of India has played a key role in creating conducive environment, it is Indian scientists like Chandrasekhara Venkata Raman, Har Gobind Khorana, Subrahmanyan Chandrasekhar, Venkatraman, Shanti Swarup Bhatnagar, Homi Bhabha… who have made the country proud with their extraordinary vision and work. India has evolved from humble beginnings into being a ‘Global Superpower’ and is all set to play a leadership role in all spheres of science and technology..

    -Manoj Mahanta

    -Team,ScienceNow

  • The Hyperloop – On a High-speed Evolutionary Journey

    Innovation

    The Hyperloop – On a High-speed Evolutionary Journey

    At a time when the future of mass transit is anything but clear with speculations on wide range of possibilities – driverless cars, flying taxies, high-speed trains, etc., the Hyperloop system is fast emerging as the most pragmatic one owing to its high-speed, low-cost and environment-neutral carbon footprints…

    Speed Travel

    For over a century now, innovators and scientists have been propounding several theories to make travel through air-tight or near-vacuum tubes a reality. While several amateur, out-of-the-box attempts have been made in the past to move people/material via underground tubes, the final breakthrough innovation idea came up at an event in Santa Monica, California, in July 2012. SpaceX’s CEO, Elon Musk announced creation of a fifth mode of transportation (i.e. after road, water, air and rail) – the Hyperloop. A futuristic transportation system, expected to be a commercial reality by 2030, the Hyperloop would facilitate passenger travel at speeds faster than that of an aeroplane. Indeed, the event marked the beginning of a new era in ‘hypersonic’ transportation – an era of high-speed passenger transportation that promises to be low on power consumption, collision-free, environment-friendly and immune to weather irregularities.  

    Mission Hyperloop Alpha

    Breathing life into a hypothetical concept of ‘Hyperloop’, a group of engineers from Tesla and SpaceX got onto the shop-floor to create the world’s first operational prototype. After an intense year-long R&D work on different technologies, the team put together a preliminary design – the Hyperloop Alpha. The design proposed construction of passenger pods, powered by advance linear electric motors, gliding above the track at cruising speeds in vacuum tunnels. To propel the passenger pod at over 700 mph, they proposed embedded magnetic accelerators along the length of the track. Making travel through the tube environment-friendly, they recommended installation of solar panels on the tube’s exterior to generate energy in excess of what’s required. The Hyperloop Alpha design system promised to make travelling between cities faster, cheaper and more energy efficient than all prevailing modes of transportation.

    Development Initiative

    Interestingly, though Elon Musk first presented the breakthrough idea, he was not in favour of SpaceX developing an ‘operational’ prototype, exclusively and independently. Treating the Hyperloop Alpha design as only the starting point, Musk decided to release the design as an open source. Thereafter, he invited the engineering community and students from across globe to improve upon the design, and help develop an operational prototype pod, via competitions.

    In the second stage, the 30-teams selected were invited to build a subscale prototype Hyperloop Pod, and bring them to the SpaceX test track for Hyperloop Pod Competition.  While the second and third competition were held, SpaceX scheduled the fourth in 2019. Incidentally, a student group – Avishkar from the Indian Institute of Technology – Madras, was one of the 21 globally short-listed teams for the competition.

    Prototype Testing

    Theoretically, passenger travel at high speeds in pods propelled using magnetic levitation through low-pressure or near vacuum tube looks possible and feasible, owing to low friction and air resistance. But in reality, arriving at a pragmatic means to accelerate the pod to 700 mph and then de-accelerate it to stop at the end station, within a very short time durations, requires some serious out-of-the-box technology thinking akin to ‘an engineering miracle’.

    Most experts agree that the Hyperloop system is still in its early stages of development, while some recent tests with prototype pods and propulsion technology have yielded a top speed of 240 mph, these achievements are just baby steps considering its true potential. Nonetheless, if ever the Hyperloop system manages to achieve the projected speed of 700 miles/hour, these travel pods would be travelling 2-3 times faster than high-speed rails and magnetic levitation trains, and upto 10-15 times faster than traditional railway.

    Future of Hyperloop

    As conventional transportation systems (i.e. road, water, air and rail) are proving to be expensive, slow and environmentally unsafe, several developed countries have opted in favour of a Hyperloop system making it the most popular and preferred mass transit system of the future. Though the new system promises to effectively address most of the present-day transportation issues, we are yet to see a fully operational large scale commercial Hyperloop system at work. As companies globally busy themselves aggregating their technology knowhow working on simpler and smaller versions, the ever bulging population and precarious environmental issues is opening new opportunities, necessitating mankind to look for better mass transit systems. Undoubtedly, amongst plethora of options available to technocrats and town planners, presently the Hyperloop appears to be the best and safest gamble to take!

    Dr Siddhivinayak Barve

    Editor, ScienceNow Digital

  • Save Earth

    Save Earth

    ‘Planet Vs Plastics’

    Earth Day is celebrated every year to highlight the importance of protecting the environment and saving Planet Earth. The event began in 1970 in the United States, and is now marked around the world.

    Earth Day is celebrated on 22nd April every year and this year’s Earth Day theme is ‘Planet vs. Plastics’. It aims to raise awareness of the harmful effects of plastic pollution for human and planetary health.

    Plastic

    Plastics extend beyond an imminent environmental issues as it poses direct threat to human health

    It is a clarian call for the end of plastic for the sake of human and planetary health. The call is for 60% reduction in the production of plastic by 2040 with the ultimate goal of building a Plastic Free future.

    Micro-plastics

    The serious issue cropping up as regards to plastics is the Microplasticss, as the plastic breaks down, it gets converted into tiny particles called Microplastics which are toxic and it enters our food and water sources as well as in the air that we breathe

    Plastic Pollution

    Global Plastic Production to the date is close to 380mn T every year. The plastic once produce does not decompose so easily which has created a threat to the ecosystem. In last ten years the world has produces more plastic than in entire 20th Century.

    The small day to day use items like Plastic Bags causes more Pollution. Annually around 500 bn Plastic Bags are produced, that means One Million Plastic Bags every minute. These Plastic Bags disintegrate into Microplasics invading every corner of our Ecosystem and affecting Life

    Similar is the case of Beverage Bottles and Plastic Water Bottles which are produced in a large number and out of this plastic produced only five percent plastic is recycled. Take the example of plastic water bottles, these bottles take three times more water to produces than the water it contains.

    Above are the simple examples of Plastic Production and in the line Overproduction and overconsumption is the trend and the challenge to reduce the plastic production by 2040

    Recycling

    All the Plastic ends up in Landfills and through the incenerators only one per cent plastic gets recycled. The Plastic enters the body of birds and mammals causing fatal damage.

    Policy

    To combat the Plastic Menace the Plastic Treaty is formulated to reduce the Plastic in the environment  

    To achieve the goal of Plastic Reduction following goals are set

    Promoting widespread public awareness of the damage done by Plastic to humans, animals and the biodiversity.

    Phasing out all Single Use Plastic by 2030

    Policies regulating the Plastic Production and

    Develop Innovative Technologies and Materials to build a Plastic-Free World.

    It is alarming situation about Plastic Pollution and the reduction of plastic is the only solution to Save Mother Earth. It is a battle that we cannot ignore

    -Dr Siddivinayak Barve

    Editor, ScienceNow Digital

     

  • Ecology & Environment

    Ecology & Environment

    Glacial Meltdown

    Glaciers are fast retreating from the Himalayan ranges, and experts believe this could lead to severe water crisis in the region in coming decades…

    The Himalayan mountains, which provides water to two billion people across the region is fast disappearing. According to a recent study, these mountain ranges – right from the Himalayas to the Hindu Kush are retreating at an alarming rate, and if the rate continues, villages and towns in the region will face a severe water crisis in coming decades.

    Known as Asia’s water tower, a glacial landscape with vast quantities of freshwater trapped within its ice, feed the Indus, Ganges, and Brahmaputra river systems, providing water for communities, agriculture, industry and hydropower stretching from India to China and beyond.

    Climate Change

    But climate change and pollution are threatening this fine balance. It is said that the Himalayan glaciers are disappearing twice as fast as they were 20 years ago. The study predicts this will cause river levels to rise until 2050, matched by increased flooding in the short term, but in the long term, the picture is one of wide-spread water scarcity; the recent instance being the Uttarakhand floods that devastated many lives and property.

    The study looks at the interconnectivity between this and the groundwater and surface water in the area. There are 5 million springs in the Himalayas and they are showing a decline not only because of overuse by an increasing population, but also because of retreating Glaciers and depleting ground water levels. This is alarming because the populations that live in the upper and middle Himalayas, in villages and even towns, are dependent on spring water. Its Impact Long term, water insecurity is of particular significance to the region’s agriculture. About 129 million farmers partly irrigate their lands with Himalayan meltwater.

    The London School of Economics reports, “Meltwater alone provides enough water to grow food crops to sustain a balanced diet for 38 million people.” Also, the Himalayan Karakoram river basins have installed hydropower capacity of 26,432 MW. Glacial loss is a threat to reliable renewable energy production. Not to mention the ever-exploding population which is expected rise by 68% by 2050 of which 90% will be in low-income countries of Asia and Africa. This would mean increased demand for resources including water and energy that will coincide with greater scarcity. Food, energy and drinking water shortages will be felt in megacities such as Delhi, Lahore and Kolkata, whilst at the same time worsening the rural situation.

    Creating water security

    The study states that unless a coherent nationwide policy is developed, the threat looms large in the coming years. In fact a 2020 Water Policy report recommends building a detailed picture of the scope and implications of Himalayan water scarcity. This includes mapping water sources and anticipating changing demand, particularly in urban and peri-urban areas.

    There’s opportunity to expand on initiatives already being trialled in areas of urban water scarcity, such as harvesting rainwater. Modified consumption applies to industry as well, like for instance, drip irrigation in agriculture. Groundwater policies are essential to manage abstraction rates.

    Metering and variable pricing are the other side of this equation, as the relatively low cost of water is often a barrier to efficient consumption. The Atlantic Council says technology will unlock greater water security. There are possibilities in desalination, plus biotech advances, including seeds that thrive under water scarcity.

    Conclusion

    While some experts say, climate change has surpassed the Himalayan glaciers and, with them, the water cycle, scientists are confident enough that addressing water security now should be a priority. Having passed the tipping point, our responsibility in this region is to work towards conserving water and be accountable for each drop!

    -Manoj Mahanta

    Team ScienceNow

  • National Science Day

    National Science Day

    National Science Day is Celebrated on 28th Feb every year. The day marks the announcement of the Discovery of Raman Effect by Sir C V Raman…

    In India National Science Day (NSD) is celebrated on February 28 every year. This day marks the

    discovery of the Raman effect phenomenon of the Scattering of light by the Indian Physicist Sir C.V

    Raman on 28 February, 1928. For the discovery of the Raman effect, he was awarded the Nobel Prize in 1930.

    Keeping this in mind, the National Council for Science and Technology Communication (NCSTC)

    decided that every year 28 February will be celebrated as National Science Day. The request was

    approved by the Government of India, and from 1936 onwards, this day is celebrated by the whole of India as the National Science Day.

    Theme of National Science Day

    Every year National Science Day is celebrated with a theme that spreads the message about the

    importance of science. This year Department of Science and Technology decided the theme of National Science Day 2023 as “Global Science for Global Well being”. The theme is dedicated to science, with the aim to highlight India’s role in Science and Technology globally.

    Objectives of celebrating National Science Day

    The main objective of celebrating National Science Day is to widely spread a message about the

    importance of science in the daily life of people. It is celebrated to discuss all the issues and implement new technologies for development in the field of science. Significantly it gives an opportunity for people in the science fraternity and scientific minded citizens in the country to encourage to come together and work towards promoting science.

    How is National Science Day celebrated?

    The National Science Day is celebrated across the country by organizing different science exhibitions,

    seminars, workshops, public speeches, science movies, exhibitions on the concept of themes, live

    projects, quiz competitions, and many more such activities.

    -Dr Siddhivinayak Barve

    Editor, ScienceNow Digital

  • Science and Technology in India

    Science and Technology in India

    As India is celebrating 75th year of foundation of its Republic, we encapsulate some defining moments of the nation’s journey in the field of science and technology…

    Today, on seventy-fifth year of formation India’s Republic, the country is considered as one of the top five superpowers on the planet, with Indian scientists contributing enormously to facilitating the country’s rapid development and progress. While it was the Prime Minister Pandit Jawaharlal Nehru who initiated several reforms in higher education and set up pioneering science and technology institutions like TIFR, DRDO, BARC, IITs, DST… the policies of subsequent governments ensured that we continued to stay on the growth and development track. The present-day government under Prime Minister Shri Narendra Modi is giving significant emphasis to creation of an ‘Atmanirbhar Bharat’ focusing on creation of a strong indigenous R&D and manufacturing infrastructure across the country.

    As we look back in history at some of the major milestones achieved by the country in the area of science and technology:

    1945: Tata Institute of Fundamental Research (TIFR) – Dr. Homi Jehangir Bhabha asked Sir Dorabji Tata Trust for help and cooperation to begin nuclear research program in India. In 1945, Tata Institute of Fundamental Research (TIFR) was born, and thus started India’s journey in the world of nuclear energy development.

    1954: India’s first Atomic Establishment at Trombay – Under the leadership of Dr. Homi Bhabha, the Atomic Energy Establishment, Trombay (AEET) was established in 1954. Later, the institution was renamed as BARC in 1967 to help consolidate all research and technology activities. Today, BARC is India’s premier research and development facility in nuclear science and engineering, giving the country a strategic edge in nuclear power.

    1956: India’s first atomic reactor ‘Apsara’– This first nuclear reactor was designed by BARC and built with assistance from United Kingdom. Apsara is a light water swimming pool-type reactor with a maximum power output of one megawatt thermal (MWt), and it first went critical on August 4, 1956. The reactor is utilised for various experiments including neutron activation analysis, radiation damage studies, forensic research, neutron radiology, and shielding experiments.

    1958: Formation of Defence Research and Development Organisation – DRDO was formed in 1958 from the amalgamation of the then already functioning Technical Development Establishment (TEDs) of the Indian Army and the Directorate of Technical Development & Production (DTDP) with the Defence Science Organisation (DSO). It has a network of laboratories engaged in developing defence technologies covering various fields like aeronautics, armaments, electronics, land combat engineering, life science, materials, missiles and naval systems.

    1959: Launch of Television – Television was introduced in India on September 15, 1959 in Delhi, and the programs were broadcasted twice a week for an hour a day. Initially, the topics covered were community health, citizen’s duties and rights, and traffic and road sense, but in 1961 the broadcasts were expanded to include school educational television project. The first major expansion began in 1972, when a second television station was opened in Bombay, and it was followed by stations in Srinagar, Amritsar, Calcutta, Madras and Lucknow.

    1964: The first Indian jet trainer – The two seat intermediate jet trainer HAL HJT-16 Kiran (Ray of Light) were built by Hindustan Aeronautics Limited (HAL) on September 4, 1964. The jet called Kiran-I was powered by the Rolls Royce Viper Mk 11 delivered to the Indian Air Force in March 1968. Later the trainer jet was upgraded with hardpoints under each wing for weapon training and redesignated as the Kiran-IA.

    1969: Indian Space Research Organisation (ISRO) – Established in 1969, ISRO is India’s pioneer space exploration agency with a vision to develop and harness space technology in national development. Over the years, ISRO has gained place among the elite space agencies in the world owing to its unique and cost effective technologies. Recently, it conducted several remarkable space probes like Chandrayaan – 1 lunar orbiter, Mars Orbiter Mission (Mangalyaan – 1) and ASTROSAT space observatory.

    1974: Pokhran – India’s first successful nuclear bomb – After Indira Gandhi had authorised scientists at BARC to design nuclear device in September 1972, it took nearly two-years of preparation to conduct the first nuclear test. Code named ‘Smiling Buddha’ the test was conducted on May 18, 1974 in the deserts of Pokhran, Rajasthan. This made India the world’s sixth nuclear power country.

    1975: Launch of Aryabhata – Named after the ancient Indian astronomer – Aryabhata, the country launched its first satellite into space on April 19, 1975. The satellite was constructed by the Indian Space Research Organisation (ISRO) and was launched into space aboard a Kosmos-3M launch vehicle from Kapustin Yar, the then Soviet Union’s rocket launch and development site.

    1978: India’s first test-tube baby – On October 3, 1978, Ms. Bela Agrawal delivered India’s first test-tube baby under the medical care and supervision of Dr. Subhash Mukhopadhyay. The child later named ‘Durga’ was conceived via in-vitro fertilisation, and the event took place just 67 days after the world’s first test-tube baby – Marie Brown, was born.

    1982: Launch of India’s first satellite – Insat-1A was a multi-purpose satellite system designed to provide two high power TV broadcast and twelve telecommunications national coverage transponders, in addition to providing meteorological services. The Insat-1A was launched by a Delta 3910 launch vehicle on April 10, 1982 but was abandoned on September 6, 1983 when its attitude control propellant was exhausted.

    1983: Research base at the South Pole – The country established its first scientific base station in Antarctica named Dakshin Gangotri. The station was built in record time of eight weeks by an 81-member team, and was powered by solar energy. The base was used to conduct scientific tests on radio transmission, physical oceanography, chemical analyse of freshwater lakes in the areas, geomagnetism, geology and glaciology.

    1984: First Indian in Space – The Indian Air Force Squadron Leader Rakesh Sharma spent eight days aboard the Salyut 7 space station along with two Soviet Cosmonauts. They had departed on April 2, 1984 in a Soyuz T-11 spacecraft. This manned mission saw Sharma conduct several scientific and technical studies in the area of biomedicine, remote sensing and construction of hydro-electric power station in the Himalayas.

    1988: Launch of C-DAC – In 1987, when US President Ronald Reagan refused to sell their supercomputers CRAY, India decided to develop it indigenously. In 1988, the Centre for Development of Advanced Computing or C-DAC was launched under the leadership of Dr. Vijay Bhatkar. With a deadline of three years and a budget of around Rs. 30 crore, India’s first super computer PARAM 800 was developed in 1991.

    1991: DNA Finger Printing – During his study of evolution of sex chromosomes in a species of snake, Dr. Lalji Singh observed and recorded specific pattern in the DNA sequences, which he named the ‘Bkm sequences’. He made use of this technique to identify people based on specific characteristic of their DNA, and was able to solve several court cases over disputed paternity and criminal cases. He pioneered the concept of ‘DNA fingerprinting’ in India.

    1993: Launch of Pentium Chip – Vinod Dham is popularly known as the ‘Father of the Pentium Chip’ for his contribution to the development of highly successful Pentium processors from Intel. Responding to consumer’s demand of computers with faster processing speed, Intel changed the game with the launch of its breakthrough chip – the Pentium.

    1994: India’s first heart transplant surgery – On August 3, 1994 a team of 20 surgeons led by Dr. Panangipalli Venugopal performed India’s first successful human to human heart transplant at the All Indian Institute of Medical Sciences (AIIMS), New Delhi. The entire operation took nearly 59 minutes and the patient lived for at least 15 more years.

    1998: Pokhran – II – Operation Shakti stunned the world community as India conducted a series of five nuclear weapons tests – one fusion or thermonuclear weapon, two fission devices and two sub-kiloton devices, which proved to the world India’s capability in development of nuclear arsenal. Pokhran – II was the first Indian test of a nuclear weapon after 1974.

    2000: Launch of indigenous fighter jet – Tejas, the single seat, single-engine, lightweight, high-agility supersonic fighter aircraft made its first maiden test flight aboard Indian Navy’s aircraft carrier INS Vikramaditya in January 2000. The aircraft’s design and development program was led by Aeronautical Development Agency (ADA) under the supervision of Hindustan Aeronautical Limited (HAL).

    2002: The Simputer – A low cost alternative to conventional computers, the Simputer was a self-contained, open hardware Linux-based handheld computer. It was devised to bridge the digital divide, but it did not succeed in taking off. Launched in 2002, it was the brainchild of seven scientists from the Indian Institute of Science, and was led by Dr. Swami Manohar. While it did not succeed, it remains an important home-grown development in computer manufacturing.

    2003: Kalpana Chawla space disaster – Kalpana Chawla, was the first Indian-origin woman to go space on a 16-day mission aboard NASA space shuttle Columbia. On the morning of February 1, 2003, the space shuttle was to return to Earth. At the time of launch, a briefcase-sized piece of insulation had broken off and damaged the thermal protection system of the shuttle’s wing. On its entry into the Earth’s atmosphere, the hot gas caused the break-up of the wing and the shuttle leading into an explosion killing all seven astronauts on board.

    2008: Chandrayaan – 1 – The country’s first unmanned mission into space became a reality with Chandrayaan -1’s moon mission. The mission launched on October 22, 2008 from the Satish Dhawan Space Centre – Sriharikota, Andhra Pradesh, included a lunar orbiter and an impactor. The goals of the mission included high-resolution mapping of the moon’s surface; near infrared, low energy X-ray and high-energy X-ray spectra, and preparation of a three-dimensional atlas of regions of scientific interest.

    2009: INS Arihant – After five decades of hard work, on July 26, 2009 India formally launched its first indigenously designed and constructed ballistic missile submarine (SSBN) – the INS Arihant. Powered by ISROs nuclear reactor, the submarine is designed to span the ocean depths at high speed and launch ballistic missiles and nuclear weapons in the range of over 3,000 km.

    2013: Mangalyaan – On November 5, 2013 India’s Mars Orbiter Mission lifted off from Sriharikota powered by PSLV C-25. After spending about a month in orbit around the Earth, the spacecraft Mangalyaan began its journey unto Mars. Almost a month later, the spacecraft entered the Mars’ orbit, putting India in the elite club of five countries which have successfully sent missions to Mars. At a cost of Rs. 450 crore, it was the cheapest mission to Mars, and India had succeeded in the very first attempt.

    2017: ISRO tests its first cryogenic engine – ISRO successfully tested its indigenously developed Cryogenic Upper Stage (CUS) for GSLV MkIII on February 17, 2017. It was tested for a flight duration of 640 seconds at ISRO Propulsion Complex (IPRC) in Mahendragiri, this test was carried out after a similar successful test for 50 seconds on January 25, 2017. The test is a significant milestone as it is the last in series of engine before the first flight of GSLV MkIII.

    2019: Chandrayaan – 2 Moon mission – India made a failed attempt to make a soft landing on to the lunar surface, and missed out on the opportunity of being the fourth country to successfully land on the moon, after erstwhile USSR, US and China. While the spacecraft has successfully entered the lunar orbit, the lander Vikram missed the primary landing site and went for the second. Thereafter, the visuals went missing as it had a crash landing.

    2021: COVID Vaccination – India began administration of COVID VACCINATION  2021. As on Today India has administered over 2.2 billion doses overall, including first, second and precautionary (booster) doses of the currently approved vaccines. In India the eligible population is fully vaccinated

    2023 : Chandrayaan-3 – Indian Space Research Organization mission landed near the south pole of the Moon on Aug. 23, 2023. The mission includes a lander and a rover. India demonstrated end-to-end landing and roving capabilities by creating a history by soft landing on moon and being the first country to explore the south pole of the moon

    2023 : Aditya L1 – The Indian Space Research Organisation’s (ISRO) maiden solar mission, is set for its final manoeuvre to reach its destination and will be injected into its final orbit on January 6. Upon reaching its final destination, the spacecraft will be able to view the sun without any eclipses.

    2023: Mission Gaganyaan – Test flight success of Abort Mission-1 (TV-D1) heralds successive sequential trial flights before the final “Gaganyaan” launch is the first step in the ISRO journey to launch a Crewed Human Spacecraft through the “Gaganyaan” mission

    While each of the above scientific events have contributed in transforming India into a global superpower, there have been some major scientific revolutions based on government policies that have also played a strategic role in taking the benefits of these developmental changes to the masses:

    The Green Revolution – Post-independence, India was going through its worst agriculture disaster owing to re-occurrence of famines as the country was witnessing wide spread poverty and hunger. In 1960, the government made a policy decision to initiate the ‘Green Revolution’ under the guidance of Dr. M.S. Swaminathan. The country resorted to the use of modern agricultural methods and technology – high yielding variety (HYV) seeds, tractors, irrigation facilities, pesticides and fertilisers. This Green Revolution led to increase in food production and resulted in India becoming one of the world’s biggest agricultural producers.

    The White Revolution – After the huge success of the Green Revolution, the Indian government initiated ‘Operation Flood’ also known as the ‘While Revolution’ aimed at increasing milk production. It helped create a nationwide milk grid linking producers to consumers by eliminating the middlemen. The mission was to make India self-dependent nation in milk production. Pioneered by Dr. Verghese Kurien the revolution was a huge success, making India one of the largest producers of milk in the world.

    The Yellow Revolution – It started in 1986- 87, to multiply the production of vegetable oils, especially mustard and sesame seeds. During the Yellow Revolution, nine oil hybrid seeds – peanuts, mustard, soyabeans, saffron, sesame, sunflower, niger, flaxseeds and castor seeds were planted. Within 10-years of the launch of the program, India’s oil production doubled from 12 million tons in 1986 to 24 million tons in 1997. The Yellow Revolution also offered farmers several support incentives associated to processing equipment, irrigation equipment, fertizers, pesticides, etc.

    The Blue Revolution – Also known as ‘Neel Kranti Mission’, the Blue Revolution was launched in the year 1985 with the objective of developing, managing and promoting fisheries so as to increase farmer’s income and sustain livelihood. This revolution tripled the production of fish in India – both island and marine sector by 2020, transformed the fish and aqua industry into a modern industry using technology and processes, increased income through development of innovative marketing platforms and also ensured food security in India. Dr. Arun Kishnan and Dr. Hirlal Chaudhuri are known as Father of ‘Blue Revolution’ in India.

    The Golden Revolution – The period between 1991-2003 is known as the period of India’s ‘Golden Revolution’, as the country saw a phenomenal rise in production of honey and horticulture products under the supervision of Nirpakh Tutej, who is considered to be the father of the ‘Golden Revolution’ in India. During this period India became the world leader in the production of a variety of fruits like coconut, mangoes, cashew nuts and the second largest producer of vegetables and fruits in the world

    Conclusion Since ancient times, Science and Technology have always been an integral part of India’s culture, and Indian intellectuals have pursued higher education vigorously and engaged relentlessly in development and innovation activities. While the government of India has played a key role in creating conducive environment, it is Indian scientists like Chandrasekhara Venkata Raman, Har Gobind Khorana, Subrahmanyan Chandrasekhar, Venkatraman, Shanti Swarup Bhatnagar, Vikram Sarabhai and Homi Bhabha… who have made the country proud with their extraordinary vision and work. India has evolved from humble beginnings into being a ‘Global Superpower’ and is all set to play a leadership role in all spheres of science and technology..

    -Manoj Mahanta

    -Team,ScienceNow

  • Mission Gaganyaan: Tested Successfully

    ISRO has yet another feather in its Crown..

    ISRO has carried out the first Tests Flights to take astronauts into space by 2025.

    The glorious Space Odyssey continues…

  • Agri Tech – Farming Drones

    Agri Tech

    Farming Drones

    For centuries, India’s agriculture-based economy has been predominantly driven by farmers who toiled hard to feed themselves and society. Fighting against all odds – unpredictable rains, depleting water sources, changing climate, depleting soil condition, pest attacks… staking their meagre fortune, they always remained hopeful of a bountiful harvest. Living in abject poverty and straddled with generations-old farming techniques, they continued to be susceptible, ill-prepared and ill-equipped in the face of the emerging challenges. Often at the mercy of nature and completely dependent on the benevolent rain God, they continued their eternal struggle to break-free from the stifling noose of poverty and starvation….

    Over the last 3-4 decades, dwindling farm income has forced several farmers to seek employment in industries in some urban locale. As for those farmers who stayed back in their villages, they had to adopt/adapt to technology-intensive farming taking real-time actions based on real-time soil/crop information. ‘Modern’ or ‘precision’ farming methods are gradually transforming how agriculture is done, thereby leading to improved crop yields, better land utilisation and resources management, and also optimisation of time and finances.

    Of the several tech-gadgets presently being deployed in precision farming to collect data and initiate timely actions, the drone technology is fast emerging as the new favourite. Let’s look at how drone technology is transforming agriculture practices in the country:

    Drones in Agriculture

    On a day-to-day basis, a farmer is required to be watchful of a variety of factors that influence the success of his farm. Whether it be: timely watering of plants or adding fertilisers to soil or promptly responding to climatic changes or maintaining of soil health or tackling of weed and insect problems, etc., farmers are resorting to use of high-tech drone technology. Drones equipped with a wide range of technologies like propulsion systems, infrared cameras, GPS and navigation systems, programmable controllers, automated flight planning… are now providing fast and efficient solutions to farmers. In short, the use of drones in agriculture is helping farmers meet the changing and growing demands of the future. Here are some of the critical areas where drones are being popularly used:

    • Soil and Field Analysis: Using drone technology, it is now possible for farmers to collect useful soil data at the beginning, middle, and end of crop cycle. Using 3D maps of soil, farmers would be able to check issues concerning soil quality, nutrient management and identify soil dead zones. This information is helping farmers to not only optimally use water resources, but also effectively manage crop nutrient levels.
    • Seed Planting: It’s a relatively new agriculture area of application, but some companies and research institutions have successfully used drones for planting seeds over large geographic areas. Minimising the need for on-the-ground planting, drones have been used to shoot seed pods into prepared soil, in the process helping to save on cost, time and long strenuous work.
    • Crop Spraying and Spot Spraying: In order to maintain high yields, often crops are required to be sprayed with nutrients after short intervals. Traditionally, it was done manually involving huge labour force or mechanically using costly hi-tech machines, which only added to the overall farm costs. Drones are now being used to spray fertilizers, herbicides or pesticides, and they are working out to be much safer and cost-effective. Now, it is also possible to identify specific problem zones in the farm and undertake spot spraying using drones in less time, with reduced finances and negligible damage to the environment.
    • Crop Mapping and Surveying: One of the biggest advantages of using drone technology is the ease and effectiveness of monitoring crops aerially over large expanses. Using drone mapping and surveying technology, it is now possible to get real-time data of the crop using real-time visual footage. With Near Infrared drone sensors, the farmer can now actually understand the plant health based upon light absorption, thereby getting a bird’s eye view of the overall farm health.
    • Irrigation Monitoring and Management: Irrigation of vast farmland is a tricky business, especially when the farmer has to water miles and miles of standing crop. Drones equipped with thermal cameras are now able to spot areas in the farm with irrigation issues – receiving too little or excessive moisture. Using this information, the farmer will be able to take timely measures – maximise drainage, adhere to natural land runoff, avoid water pooling, etc. so as to prevent damage to sensitive crops. With drone surveying, these issues can now be spotted in real-time before they become troublesome.
    • Real-time Livestock Monitoring: It is now possible for farmers to keep track of livestock at regular intervals, using less farm labour and making optimal use of time. Drones are being used to closely monitor the animal herd and see if there are injured or missing livestock, as well as see which animal is likely to give birth to young ones. Thermal imaging now helps farmers to keep an eye on the livestock predators, and track abnormal herd movements.

    While there is so much happening in agriculture drone technology, yet it is believed that the work is still in its infancy. As drones continue to maximise yields, minimise costs and future-proof farms, the biggest limiting factor to the growth of fields is the lack of trained pilots. With safety guidelines, drone best practices, insurance policies, drone camera and sensor technologies continuing to evolve and improve, the application of drones at the hands of highly-trained pilots is likely to revolutionise agriculture practices in the country.  

    -Manoj Mahanta

    Team, ScienceNow Digital

  •  India on Moon 

     India on Moon 

    Vikram has landed!

    These resounding words mark the historic moments for Indian Space Programme India has made history as its Moon mission becomes the first to land in the lunar South Pole.

    Moon-landing

    India is amongst the few countries which have reached the moon. India joins an elite club of countries to achieve a soft landing on the Moon being only the fourth in the world after the US, the former Soviet Union and China.

    Vikram the lander from Chandrayaan-3 successfully touched down on August 23rd when the entire nation was glued to Television watching this historic moment. It is the proud moment for the country when its science has reached the stars.

    Celebrations and Success

    Celebrating the occasion ISRO Chief has said ‘We have reached where no other country could reach’ and the Prime Minister Narendra Modi has said that “India is now on the Moon”.

    Indeed true.. it is work of generation of ISRO Scientists and the dream come true achievement for Vikram Sarabhai who pioneered India’s space programme

    The achievement is very special as no country in the world could achieve it and India is the first nation to soft land on the South Pole of the Moon. It is very difficult to land on the South Pole of the moon as the surface is uneven and it has huge craters. Russian Spacecraft Luna has crash landed just earlier to our successful moon landing. Prior to this India’s earlier attempt to land on the south pole of the moon missed by margin in 2019

    Perfect Touchdown

    Everything went with clockwork precision.. as the lander Vikram after ISRO founder Vikram Sarabhai – began its precarious descent, carrying within 26kg rover named Pragyaan. The speed of the spacecraft was progressively reduced to make the soft landing on the lunar surface.

    The moment came and at the touchdown the entire country was in celebration. The live simulation was shown on huge screens at every nook and corner where the people cheered the remarkable fete.

    In a few hours the six-wheeled rover crawled out of the lander’s belly and started roaming roam around the Moon’s surface

    Mapping Moon

    The Chandrayan -3 mission’s major goal is to hunt for water-based ice which, scientists say, could support human habitation on the Moon in future. It could also be used for supplying propellant for spacecraft headed to Mars and other distant destinations.

    The lander and the rover were equipped with five scientific instruments which has sent the vital data of moons measurements.

    Physical characteristics of the surface of the Moon, the atmosphere close to the surface and the tectonic activity of the moon is studied in details.

    Future

    Chandrayaan-3 is India’s third lunar mission, has come 15 years after Chandrayaan-1, the  first Moon mission in 2008, which discovered the presence of water molecules on lunar surface

    Chandrayaan-2 has missed the landing however the Chandrayan -2  orbiter is still orbiting the Moon

    The lander and rover will function for 15 days and later will be kept on sleep mode and will be awakened on the advent of moons new dawn after 15 days

    India is looking for the substantial success by achieving vital data from moon which will help to further India’s Space Programme.

    -Dr Siddhivinayak Barve

    Editor, ScienceNow Digital

  • A Step Away

    A Step Away

    India’s ambitious Moon Mission is on the way to moon, eyeing its ultimate goal of landing the lunar Surface. Launched on July 14th, the spacecraft has successfully entered the Lunar Orbit and now inching towards the Moon’s Surface and is just a ‘Step Away’ from making history.

     Close to moon

    The mission moon has successfully completed several maneuvers and is inching closer to moon. On 14th July, the launching of Chandrayaan was done, after 17 minutes, it entered the intended orbit, the second orbit raising maneuver was completed on 17th July, firing for the third round of the orbit was done on the 18th July and later with the fifth orbit-raising maneuver the mission was towards the Lunar Orbit Insertion. Its entry into the lunar orbit was done on 5th August and on 6th August, the first orbit reduction maneuver was completed, the next operation to was done on 9th of August. India’s Chandrayaan 3 is very close to reaching the surface of the moon.

    Chandrayaan 3 is on the journey to reach the moon. Chandrayaan is heading towards the soft landing on the moon. Chandrayaan 3 is now just 174 km away from the moon.

    Touchdown

    ISRO will attempt the soft landing of the lander on the surface of the moon and to achieve this, the speed of Chandrayaan 3 has to be very slow.. The speed of the spacecraft is being reduced by completing various rounds in the Lunar Orbits, and with each round, the speed has been reduced by half

    The mission continues to make strides towards its historic goal. India’s Lunar endeavour has now entered a crucial phase beginning its precise navigation procedure to guide the spacecraft when a significant milestone awaits for the gentle touchdown on moon near its south pole on 23rd August…

     First Post

    On reaching the lunar orbit, the first post of Pictures taken by Chandrayan has reached earth, and when the lander touches down, it will then start the next process, with the help of devices it will send the moon images back home

    The health of Chandrayaan-3 is normal. Throughout the mission, the health of the spacecraft is being continuously monitored at ISRO

    On the eve of Independence day, All eyes are on Chandrayaan for its historic landing on Moon…

    -Dr Siddhivinayak Barve

    Editor, ScienceNow Digital