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What is genuinely spooky to you?
(lemmy.world)
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this post was submitted on 01 Apr 2026
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No Stupid Questions
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Plastic bags blowing around in the backs of pickup trucks, traveling at high speed down the highway.
WHY DON'T THEY BLOW AWAY‽
It's like the universe is trying to tell us something profound about our existence.
Watch the mythbusters episode about saving gas by tailgating semi trucks
Wat was the verdict?
If you're close enough, you get a little boost to fuel efficiency becsuse your vehicle doesn't have to cut through as much wind resistance due to the bubble created in the back of the truck.
Tho I think the episode about pick-up truck beds aerodynamics is more relevant to this conversation. In that, they discovered that the shape and size of the cab in relation to the bed creates a bubble of air pressure that passes over the bed as if it had a roof, causing very little disturbance inside the bed itself.
I wonder wat the fatality rate is tho, like if they get too close in the pursuit of all these $aving$
confirmed . negative air pressure sucks things in behind the truck.