Riders in the Tour de France Femmes faced checks for hidden aerodynamic chest fairings ahead of the time trial stage to Dijon, in a UCI crackdown on rule circumvention.
Goalkeepers in the World Cup are struggling with the Adidas Trionda ball, conceding goals due to its unpredictable speed. Researchers suggest 'drag crisis' and the ball's design, with deep seams, contribute to this phenomenon, making shots faster than anticipated.
Gu Songfen, chief designer of China's J-8 fighter jet family and an aerodynamics expert, has died at 96. He was a key figure in China's aviation development and received numerous prestigious awards for his contributions.
