A lot of these concepts hail from the Open Compute Project[0] which I might have missed being mentioned in the page. ORv3[1] is a 21” rack design that exploits the fan cube law, basically - a lot less power is needed to push the same volume of air given a larger fan blade diameter. It’s a neat cooling concept I think about often.<p>[0]<a href="https://www.opencompute.org/projects/server" rel="nofollow">https://www.opencompute.org/projects/server</a>
[1]<a href="https://en.wikipedia.org/wiki/Open_Rack" rel="nofollow">https://en.wikipedia.org/wiki/Open_Rack</a>