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Exclusive for Subscribers from Monday to Friday: Why science behind badminton shuttlecock and Geographical location of Delhi are relevant to the UPSC Exam? What significance do topics like aerodynamically stable, Global Carbon Project report, Bharat Stage III and Bharat Stage IV have for both the preliminary and main exams? You can learn more by reading the Indian Express UPSC Key for January 15, 2024.

Shuttlecocks, also known as birdies or birds, are traditionally made from duck feathers, but nylon shuttlecocks have become more widely used because of their su

<p>Shuttlecocks, also known as birdies or birds, are traditionally made from duck feathers, but nylon shuttlecocks have become more widely used because of their superior durability. Their flight behavior, however, is far different from that of traditional feather birdies. In Physics of Fluids, scientists in India explored the aerodynamic performance of nylon shuttlecocks at various flight speeds. Through computational analyses based on two-way fluid-structure interactions, the team coupled equations governing air flow with equations determining skirt deformation of a shuttlecock in fligh...