Notes and queries

Does poor swimming make for good exercise? Orange, the colour of Ulster Protestants and Dutch footballers. A Clangers clangerIf I swim really badly for half an hour, do I get the same exercise value as someone who strokes smoothly up and down the pool for the same time? In competitive swimming, two main factors govern the speed that can be maintained by an athlete: (1) resistance to movement, ie the drag encountered by an athlete in the water (hence the interest in streamlining through techniq...

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