Essential Science and Technology Topics for UPSC Prelims 2026 Revision
UPSC Prelims 2026 Revision Checklist: Top 35 Science and Technology topics that aspirants should revise
The Indian Express
Image: The Indian Express
As the UPSC Civil Services Preliminary Examination 2026 approaches on May 24, aspirants should focus on revising key science and technology topics that are crucial for the exam. Important areas include sodium-ion batteries, CAR T-cell therapy, and advancements in space exploration, among others. This checklist serves as a guide to ensure comprehensive preparation.
- 01Sodium-ion batteries are safer and more environmentally friendly than lithium-ion batteries, with a higher operating temperature range.
- 02CAR T-cell therapy is an innovative cancer treatment that reprograms T-cells to target cancer cells more effectively.
- 03The Oort Cloud is a theoretical region of icy debris surrounding our solar system, influencing comet trajectories.
- 04Hydrogen fuel cells produce only water vapor as exhaust, making them a clean energy alternative, though challenges remain due to hydrogen's low density.
- 05The Integrated Air Defence Weapon System (IADWS) successfully conducted flight tests, demonstrating its capability to destroy multiple targets simultaneously.
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With the UPSC Civil Services Preliminary Examination scheduled for May 24, 2026, aspirants are urged to focus on revising critical science and technology topics. This checklist highlights 35 essential areas for revision, emphasizing developments that have significant implications for strategic importance, health applications, and environmental concerns. For instance, sodium-ion batteries are gaining traction due to their abundance and safety compared to lithium-ion alternatives. Additionally, CAR T-cell therapy represents a cutting-edge approach to cancer treatment, reprogramming T-cells to enhance their ability to target malignancies. The Oort Cloud, a theoretical shell of icy debris, plays a crucial role in our understanding of comet trajectories. Hydrogen as a fuel source offers a clean alternative, producing only water vapor during combustion, although its low density poses logistical challenges. Furthermore, the Integrated Air Defence Weapon System (IADWS) has successfully demonstrated its capabilities in recent tests, showcasing advancements in defense technology. This comprehensive revision guide aims to equip candidates with the knowledge necessary for success in the upcoming exam.
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The advancements in technology and health applications highlighted in this checklist may significantly affect exam preparation and future career paths for aspirants.
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