11. On powder -- pebbly to pulverized

We can say that Friedrich knew something about powder.   Since we are now catapulted into the subject of powder, consider the word (just for fun -- no tests, remember).

Origin of POWDER

Middle English poudre, 

from Anglo-French pudre, podre,

from Latin pulver-, pulvis dust;

probably akin to Sanskrit palāva chaff

First Known Use: 14th century

Synonyms for powdery:   dusty, floury

Related Words:   smooth; filtered, pulverized, refined; superfine, ultrafine

Near Antonyms:   rough; unfiltered, unrefined; gravelly, gritty, sandy; pebbly,

rocky, stony (also stoney); lumpy, mealy  

~from http://www.merriam-webster.com/dictionary/powder