0 a tall, thin amount of dust/smoke, etc rising into the air. -- pióropusz lub smuga pyłu/dymu itp.
1 a large feather, often worn for decoration -- pióro
Almost symmetric patterns alternate aperiodically with episodes when plumes migrate and amalgamate, squeezing out their intermediate neighbours.
The basic sequence, starting with steady convection in an irregular hexagonal pattern and proceeding via intermittent behaviour to chaotic large-scale plumes, is repeated.
Convection is strongly aperiodic but the plumes now tend to be disposed in patterns that are roughly hexagonal.
Next, alternate plumes develop an annular structure with a sinking core and then split apart to form imperfect tiny squares (with five plumes).
There is no entrainment into these plumes, even a t zero surface tension.
Using real water or air-borne plumes, or real antennae sensors, saves effort in modelling and makes validation more straightforward.
He extends this effort here with a new text specifically dedicated to a description of mantle plumes, their causes, and their effects on surface geology.
In the corners themselves are plumes of the same sign as in the centre.
