Etymology: Gk ouron. the fluid secreted by the kidneys, transported by the ureters, stored in the bladder, and voided through the urethra. Normal urine is clear, straw-colored, and slightly acid; has the odor of urea; and has a specific gravity between 1.003 and 1.035.
My understanding of true Damascus steel is that it's likely two different crystaline structures, one more ductile (so it can compress to absorb more energy without failing) and the other more brittle (which can hold a sharper edge).y understanding of true Damascus steel is that it's likely two different crystaline structures, one more ductile (so it can compress to absorb more energy without failing) and the other more brittle (which can hold a sharper edge).
If you have collected knives for a long time, or even if you are new to knives, chances are you have wondered what the differences are between all the types of steel in knife blades. There are lots of different types of steel, and no doubt you have wondered what the best steel is.fter the two different steels are folded together, the steel is acid etched. The color contrast and patterns on the blade comes from the fact that the two types of steel etch differently. Damascus steel is considered a precious metal, because it is difficult to make, and can result in very beautiful knife blades.