Spider silk spinning field, the spinneret apparatus of an adult "Araneus diadematus" (garden cross spider) consists of the glands shown below. Similar multiple gland architecture exists in the black widow spider. In order to artificially synthesise spider silk into fibres, there are two broad areas that must be covered. These are synthesis of the feedstock (the unspun silk dope in spiders), and synthesis of the spinning conditions (the funnel, valve, tapering duct, and spigot). There have been a number of different approaches. The molecular structure of unspun silk is both complex and extremely long. Though this endows the silk fibres with their
Fin Garden Fin Garden Fin Garden ( "Bagh-e Fin") located in Kashan, Iran, is a historical Persian garden. It contains Kashan's Fin Bath, where Amir Kabir, the Qajarid chancellor, was murdered by an assassin sent by King Nasereddin Shah in 1852. Completed in 1590, the Fin Garden is the oldest extant garden in Iran. The origins of the garden may be anterior to the Safavid period; some sources indicate that the garden has been relocated from another place, but no clear picture of it has been found. The settlements of the garden in its present form was built under the reign of