Revison

Revison

1. four r's

   • reduce
     • minime the amount of material and engery you use
   • Reuse
     • take an exsiting product that has become waste and reprocess the material to use in a new product
   • recycle
     • taking an existing product that had become waste and use the materials or parts for another purpose without processing it
   • Recover
     • finding ways to create energy from waste that has been disposed of. mordern techonolgy allows us to treat waste using thermal snd non thermal processes to produce hear, gas, oil or electricity.

2. bionics

   • bionics can can attach robotics to there legs or arms to make them walk and also can create artificial limbs for people that don’t have them or have been amputated .

3. Fibre optics

   • speeds up intenret and signals and can get stronger signals
   • sky
   • BT
   • virgan
   • talk talk

4. robots

   • can be used in the army, can be used in the police and people can used them as a servent
   • can be used in resuce missions and also can be used on construction
   • quicker to make and also labour costs
   • these can help people in hostpicals or even nursing homes

5. material

   • carbon fibre
   • mild steel
     • mild steel is good for recycling because it contains iron.
   • aluminuim
   • iron

6. hydrogen fuel cells

   • a fuel is a device that converts the chemical enegry from a fuel into electrocity through a chemical reactions with oxgren or another oxidzing agent. hydrogen is the most common fuel but hydrocarbons such as a natural gas and alchols like methonal.

7. forging

   • forging is a manufactoring process invloving the snaping of the metal using localizied compressive forces.

8. sheet metal working

   • it is formed into a inductrial process into thin, flat pieces

9. rolling

   • rolling is a metal forming process in which as metal stock is passed though one or more pairs of rolls to reduce the thickness and to make the thickness uniform

10. extrusion

    • a material is pushed or drawn through a dye of the desired cross-section

11. machining process

    • machining is a broad term used to decrible removal of material from a workpiece, it covers several processes

12. CNC machinery

    • a computer that tell a certain machience plots that help the computer to get a precised cutting or measuring

13. telemitcs

    • the branch of imformation thechnolgy which deals with the long distance tranmissions of computerized information