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...energy or resources necessary for life. The breaking down, or digestion, of the food we eat is an important metabolic process, as it enables us to gain energy and nutrients from food. The energy obtained from food is used as fuel by the cells throughout the body, while the nutrients are used as building blocks to manufacture important molecules. Food is digested within...

...energy costs and oxidation. Mechanical crank or friction screw presses with load ratings 500–14,000 tons used. Hydraulic presses used for aluminium alloy forgings with rating of 750–65,000 tons. Production rates vary with size of forging and degree of automation: crank presses with auto-transfer 300–600 parts h-1 hot formers (e.g. Hatebur) totally enclosed dies...

...energy for process. (Sulphuric acid and ammonium hydroxide added to control pH to 4.5–5.0). Manufacture: Production line consists of the following stages: alkaline soak or electroclean cold or warm water rinse acid pickle rinse electroless plate Additional pre-treatment is needed to produce a catalytic surface (Pd, Rh, Ag, Au, Ni, Fe, Co, Ru, Al) for plating copper,...

...energy to sew anymore? But, what if we did take the time? What if we could keep wearing that cozy jumper our gran knitted for us? Or fix our favourite dress instead of watching it head off to landfill? What if that expensive winter coat just needed a patch or a new zip, and we gave it a second life? Mending lets us keep the clothes that matter Mending clothes lets us keep...