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
Formal garden a formal garden, if used, is usually closely cut ornamental lawn. Formal garden A formal garden is a garden with a clear structure, geometric shapes and in most cases a symmetrical layout. Its origin goes back to the gardens which are located in the desert areas of Western Asia and are protected by walls. The style of a formal garden is reflected in the Persian Gardens in Iran, such as the Monastery Gardens from the Late Middle Ages. It has found its continuation in the Italian Gardens from the Renaissance and has culminated in the French Gardens from the Baroque