DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 31st January 2025
Archives (PRELIMS & MAINS Focus) PROMISE OF NUCLEAR FUSION Syllabus: Prelims & Mains – SCIENCE & TECHNOLOGY Context: An experimental nuclear fusion reactor in China triggered a lot of excitement by keeping its operational state maintained for more than 1,000 seconds, or over 17 minutes, which is a new record. Background: – Nuclear fusion is what produces the energy in the Sun, or any other star. Scientists across the world have been trying to recreate this process to produce electricity. The technology can eliminate the world’s energy crisis, and the problem of climate change, but it has not been mastered yet. Key takeaways Nuclear fusion is a process where two light atomic nuclei combine to form a heavier nucleus, releasing a tremendous amount of energy. This is the same process that powers the Sun and other stars. How Does It Work? Fusion Fuel: The most common fusion reaction involves hydrogen isotopes: Deuterium (²H) and Tritium (³H) When these isotopes fuse under extremely high temperature and pressure, they form helium (⁴He) and release a neutron along with a vast amount of energy. Conditions for Fusion – To achieve fusion, the following conditions are required: High Temperature: Atomic nuclei are positively charged, so they naturally repel each other due to the electrostatic force. To overcome this repulsion, extremely high temperatures (millions of degrees Celsius) and pressures are required. High Pressure: The plasma must be confined at high density to increase the likelihood of collisions. Confinement Time: The plasma must be held together long enough for fusion reactions to occur. Experimental Advanced Superconducting Tokamak (EAST) reactor The Chinese reactor did not produce electricity or carry out a fusion reaction. However, the reactor managed to maintain plasma in a steady state of confinement for a long time, longer than it had previously been possible. Fusion require very high temperatures. At such temperatures, matter exists only in the plasma state. But such hot plasma cannot be handled by or contained in any material. Within the reactor, this plasma needs to be kept suspended in a confined space, surrounded by very strong magnetic fields acting as walls. Charged particles respond to magnetic fields, and this property is used to guide the flow of plasma within an enclosed space, separated from any matter. This condition, necessary for facilitating fusion reactions, is extremely delicate. Scientists have not been able to maintain these conditions for longer than a few seconds. Real-life electricity-generating reactors would require this state to be maintained for hours, even days, at a stretch. Advantages of Fusion The fusion process produces far greater amounts of energy than any other source — one gram of fuel can yield as much energy as burning about eight tonnes of coal. It uses cheap input materials, available in almost limitless supply (deuterium and tritium, two heavier isotopes of hydrogen that are used as fuel, are easily available in nature), has a zero emission footprint. Unlike the fission process, it does not leave dangerous nuclear waste. International Thermonuclear Experimental Reactor (ITER) The largest fusion reactor, an international collaborative project called ITER, is coming up in southern France. More than 30 countries are participating with India being one of the seven member countries contributing to the reactor’s construction and research. According to its current timeline, it would begin deuterium-tritium fusion reactions by 2039, producing 500 MW of fusion power. Source: Indian Express FEMINISATION OF AGRICULTURE Syllabus: Mains – GS 2 & GS 3 Context: Women contribute around 63 per cent of the agricultural labour force in India, yet they lack access to key resources such as land ownership, finance, and advanced farming technologies. Background: – Women’s involvement in agriculture does not necessarily equate to empowerment. Key takeaways The female workforce participation rate in India reached its peak at 40.8 % in 2004-05 but has declined since. However, since 2017, the female labour force participation rate (FLPR) has seen a rising trend after years of decline. The rural FLPR increased from 41.5% in 2022-23 to 47.6% in 2023-24, while the urban FLPR increased from 25.4% to 28% over the same time period. This growth in FLPR could be attributed to the economic recovery following covid, which prompted many women who were previously not part of the labour force to seek employment. In addition, the sudden rise in FLPR in the last few years has also been linked to economic distress. The rise in FLPR is largely driven by the rise in self-employment among women, especially in agriculture. This highlights the lack of non-farm job opportunities for women, with most employment opportunities for rural women remaining confined to agriculture. This leads to feminisation of agriculture. Feminisation of agriculture can be interpreted in two ways. First, it refers to an increase in the proportion of farm related work undertaken by women, including their responsibilities as smallholder cultivators or casual agricultural wage workers. Second, feminisation of agriculture can also imply an understanding of women’s control, ownership, and participation in agricultural resources and social processes. This includes women’s ownership of farmland, land rights, and decision-making powers. Factors such as declining production and productivity, increasing cost of inputs, higher risks of crop damage due to climate change and the growing aspirations of youth in rural areas have fueled male migration out of rural areas. As a result, women who are left behind take on farm work. Gender disparity in land ownership The Agriculture Census of 2015-16 reported that while 73% of rural women workers are engaged in agriculture, only about 11.72% of the total operated area in the country is managed by female operational holders. Additionally, women’s landholdings are predominantly small and marginal. In India, women can acquire land through inheritance, gift, purchase, or government transfers. However, these systems are often skewed. For instance, women are more likely to be financially constrained than men to purchase land, making inheritance the major means of ownership. Yet, social biases make it difficult for women to inherit. Towards gender equity in agriculture Women’s participation in paid work should not be confused with their empowerment. Women often face a
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