Commercial feed blending is a complex process consisting of many potential raw ingredients and final products. The sheer number of daily orders and final products at a typical feed mill means that raw ingredients cannot be mixed to directly produce final products in an economical fashion. As a...

Logarithmic spirals are abundantly observed in nature. Gastropods (such as nautilus, cowie, grove snail, thatcher, etc.) in the mollusca phylum have spiral shells, mostly exhibiting logarithmic spirals vividly. Spider webs show a similar pattern. The low-pressure area over Iceland and the...