Wood must dry before it can be used in most applications, but with its complex internal structure exactly how wood dries out has been unclear. New experiments combining MRI and Keep reading
Tag: porous flow
Lake Stars
As snow-covered frozen lakes melt, stars appear on their surface. These lake stars form around holes in the ice where (relatively) warm water seeps up into the slush layer. The Keep reading
In Search of a Better Espresso
Of specialty coffee drinks, espresso has the most cup-to-cup variation in quality. For those who are not coffee aficionados — such as yours truly — espresso is made by forcing Keep reading
Peering Between Particles
Turbulence is not the only way to mix fluids. Even a steady, laminar flow can be an effective mixer if geometry lends a hand. Above, two dyes, fluorescein (green) and Keep reading
Watching Flow Inside Rock
Flow through porous substances has been a major interest in fluid dynamics for the last hundred years because rocks are porous. For most of that period, we’ve used Darcy’s law Keep reading