The picture above shows bread mold which is a type zygospore fungi. These fungi produce spores in the black stalk-like structures you can see in the picture.
Wootz steel is a steel characterized by a pattern of bands or sheets of micro carbides within a tempered martensite or pearlite matrix. It is the pioneering steel alloy matrix developed in South India in the sixth century BC and exported globally.It was also known in the ancient world as Seric Iron.ral tradition in India maintains that a small piece of either white or black hematite (or old wootz) had to be included in each melt, and that a minimum of these elements must be present in the steel for the proper segregation of the micro carbides to take place.
The generic term âStainless Steelâ covers a large group of iron-base alloys that contain chromium. The term âstainlessâ implies a resistance to staining or rusting in air. Stainless steels contain at least 10.5% chromium, which promotes formation of a thin, chromium-enriched surface oxide.