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.
cpovey. Steel is an alloy of iron and carbon. Stainless steel adds Chrome and Nickel, and possibly other elements, like Vanadium and Manganese, depending upon the properties desired. Most stainless is not magnetic, but obviously stainless steel knives are magnetic, otherwise they would not stick to the magnetic holders.Wikipedia has an explanation, but it's kind of complex. Basically, it depends upon how the steel is cooled and how the crystals form determines if the steel is magnetic or not.povey. Steel is an alloy of iron and carbon. Stainless steel adds Chrome and Nickel, and possibly other elements, like Vanadium and Manganese, depending upon the properties desired. Most stainless is not magnetic, but obviously stainless steel knives are magnetic, otherwise they would not stick to the magnetic holders.