06-20-2020, 06:35 PM
|
#24 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,660
Thanks: 7,767
Thanked 8,575 Times in 7,061 Posts
|
I recall an example of putting round holes instead of horizontal slots in cattle trailers and how it reduces suffocation of the livestock! 
It's on EcoModder somewhere. I don't trust Google to find it though.
Speed holes
https://i.kinja-img.com/gawker-media...jzd2eihqoc.jpg
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
."We're deeply sorry." -- Pfizer
|
|
|
|