Can I see vehicle wakes?
June 20, 2010 5:11 PM Subscribe
I think I can sometimes see the wakes behind cars. Am I deluding myself, or can one occasionally see the turbulence behind a vehicle?
posted by scruss to science & nature (13 answers total)
Under certain circumstances - usually an overcast, humid but not raining day - I think I see the wakes of moving cars crossing past me. If I focus more distantly than on the cars themselves, the wake-like blurs are clearer. It's not spray; the road is dry.
I realise that this is deep within special confirmation bias territory, but really, would the pressure disturbances of road traffic moving at normal speeds be able to cause something one could see?
I've been able to ‘see’ this for a long time; more than 20 years. I have 20/20 vision and no history of vision distortion.