New Scientist is running a story about How does it feel to die?. Including some bitter facts. I don’t want to keep them from you:
In the UK, where the water is generally cold, 55 per cent of open-water drownings occur within 3 metres of safety. Two-thirds of victims are good swimmers, suggesting that people can get into difficulties within seconds, says Mike Tipton, a physiologist and expert in marine survival at the University of Portsmouth in the UK.
Typically, when a victim realises that they cannot keep their head above water they tend to panic, leading to the classic “surface struggle”. They gasp for air at the surface and hold their breath as they bob beneath, says Tipton. Struggling to breathe, they can’t call for help. Their bodies are upright, arms weakly grasping, as if trying to climb a non-existent ladder from the sea. Studies with New York lifeguards in the 1950s and 1960s found that this stage lasts just 20 to 60 seconds.
If you end up losing your head, but aren’t lucky enough to fall under the guillotine, or even a very sharp, well-wielded blade, the time of conscious awareness of pain may be much longer. It took the axeman three attempts to sever the head of Mary Queen of Scots in 1587. He had to finish the job with a knife.
Decades earlier in 1541, Margaret Pole, the Countess of Salisbury, was executed at the Tower of London. She was dragged to the block, but refused to lay her head down. The inexperienced axe man made a gash in her shoulder rather than her neck. According to some reports, she leapt from the block and was chased by the executioner, who struck 11 times before she died.