Exercise: Due to not having bottleneck design in tetra-pack design for edible oil packing in India it is difficult to pour it in another bottle. Design a tetra-pack for edible oil for easy pouring.

Wire

The characteristics of wire help to create passage between two units or members.  Wire can tie two objects with two ends for creating passage. Wire has established as one of the most essential elements for communication purposes. It helps in transferring information, power and builds trade transactions.

Plate 7A Wire Connection	7B PVC Coated Wire	7C Wire Strainer	7D Wire Mesh

(Source: http://en.wikipedia.org/wiki/Wire ; Oct. 5, 2012
& https://www.google.co.in/search?hl= en&q=Wire&bav=on.2,or.r_gc.r_pw.r_qf.&biw=1366&
bih=664&um=1&ie=UTF8&tbm=isch&source=og&sa=N&tab=wi&ei=d2tuUNP9PM3MrQfAq
YHwDA ; Oct. 5, 2012)

In general,structurally wire is cylindrical; however it can be flat or square as well. The application of wire is found in many ways, such as- wire netting, springs, and wire rope, spinning, etc.Wire is analogue to fibre. Because of the applications the wire may change. The wire cable (plate 7A) for the passage of power, PVC coated wire (plat 7B) protected from hazards is used for electrical communication passage. Larger and smaller things are separated with the help of Wire Strainer (plate 7C). And the wire-mesh (plate 7D) allows air to pass through however creates a barrier/ separator between two spaces.