The biology of saliva, phlegm and snot is clear to cyclists: Cycling makes them happen. (Tips et al, Nature, Vol 12, pp.1264-1289, 2011)
The physics are a whole nother matter. Generations of cyclists remain mystified by why - when you spit out into all that fast moving air - it is so rarely whisked away, and so often splattered all over you.
BONUS TIP: The sociology of phlegm splatter could be a whole journal.
When you stop to buy coffee and don't know you have spit all over you, it's ok. Post-ride, when you realise you have been riding for team snot-rocket, emotion surges through you.
My worst cycling splatter experience was when a horse pulling a tourist carriage paused next to me at the traffic lights at NGV and then sneezed a large amount of snot and saliva onto my bare leg.
ReplyDeleteI have always feared those horses. Now I know why!
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