In the ball analogy, the radius of the ball grows as the universe expands, but all points on the surface of the ball (the universe) recede from each other in an identical fashion.
和球类似，随着球的半径增长(正如宇宙膨胀)，球(宇宙)表面的任意点都以同样方式与其他点远离。
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When Argentina won in 1986, the tactics were simple: give the ball to Maradona, so El Diego can be forgiven for struggling with the finer points of footballing systems.
The physics points towards a curler: if the keeper isn't fully acclimatised to the flight of the ball then the bending shot gives a bigger time advantage.