Badminton

A Badminton's shuttlecock must be extremely aerodynamically stable. This is how the shuttlecocks are calibrated https://twitter.com/Rainmaker1973/status/1637519612446220291

When you realize 'the elders' are world champions @P9Ashwini and @srikidambi - https://twitter.com/ValaAfshar/status/1664392011145957376