Why do passing trucks suck instead of blow?
Nope, it's not the first line of a joke or a rhetorical question. I would expect a passing truck or bus to be pushing a wave of high pressure air in front and beside, but I've noticed time and agai...
Forum Discussion
Bernoulli's principle as stated is the REAL reason. Faster moving air passing between both rigs creates a low pressure area. Same principle that creates lift on an airplane wing where the shape makes air flow faster over the top than the bottom.
