Recently retired, no longer affiliated with any party. Constitutional patriot listening for God’s word
I only can hope at this piont
hope (third-person singular simple present hopes,
present participle hoping,
simple past and past participle hoped)
(intransitive, transitive) To want something to happen, with a sense of expectation that it might.
Who peed on the floor?
There seems to be a big ring mark left over...
The coffee ring effect occurs when a droplet of a suspension evaporates on a substrate; this process can separate suspended nanoparticles (NPs) by size as a result of geometric constraints at the contact line of the evaporating droplet.
Compared with atmospheric spray pyrolysis, low-pressure spray pyrolysis (LPSP) has a unique capability of producing nanoparticles from micron-sized droplets (Fisenko et al. 2006).
https://www.tandfonline.com/doi/full/10.1080/02786826.2010.486684
In physics, a "coffee ring" is a pattern left by a puddle of particle-laden liquid after it evaporates. The phenomenon is named for the characteristic ring-like deposit along the perimeter of a spill of coffee. It is also commonly seen after spilling red wine. The mechanism behind the formation of these and similar rings is known as the coffee ring effect or in some instances, the coffee stain effect, or simply ring stain.
Convective deposition can control particle orientation, resulting in the formation of crystalline monolayer films from nonspherical particles such as hemispherical, dimer, and dumbbell shaped particles. Orientation is afforded by the system trying to reach a state of maximum packing of the particles in the thin meniscus layer over which evaporation occurs.
