Barometer | 28 March 2018
From our UK edition
Not cricket The Australian cricket captain Steve Smith was banned for a match and fined his match fee after a player was caught tampering with the ball by rubbing it with tape in the hope of making it swing more. How do you make a cricket ball swing? — The science was covered in a paper by N.G. Barton in the Proceedings of the Royal Society of London in 1982, which claimed, after wind tunnel tests, that maximum swing can be achieved by keeping one side of the ball shiny and bowling it at 30 metres per second (67.5mph), with the seam at an angle of 20 degrees from the direction of the ball and a backspin of between five and eight revolutions per second. Contrary to the lore of the game, humidity makes no difference, though a bit of sandpaper on the non-shiny side certainly would.