Can anybody tell me if my working is wrong here? Footballers commonly reach speeds of 25kph - ie, 6.94m/s. Sky HDTV broadcasts at 50 frames per second, ie, one frame every 0.02s. In 0.02s, a player moving at 25kph travels 138.8mm. (1/2)

— Jonathan Wilson (@jonawils) August 10, 2019