[{"n": "Biofuel", "u": "/e/energy-and-power/biofuel/", "s": "Renewable fuel from biomass, used mainly for transportation."}, {"n": "Central heating", "u": "/e/energy-and-power/central-heating/", "s": "A system that provides warmth to multiple spaces from one main heat source."}, {"n": "Cooling tower", "u": "/e/energy-and-power/cooling-tower/", "s": "Device that rejects waste heat by cooling water."}, {"n": "Desalination", "u": "/e/energy-and-power/desalination/", "s": "Converting salt water to fresh water through artificial processes."}, {"n": "Air conditioning", "u": "/e/energy-and-power/air-conditioning/", "s": "Cooling the world, from ancient passive designs to modern electric systems."}, {"n": "Candle", "u": "/e/energy-and-power/candle/", "s": "Ancient source of light, now used for symbolism and ambiance."}, {"n": "Capacitor", "u": "/e/energy-and-power/capacitor/", "s": "A passive component storing electrical energy via separated charges."}, {"n": "Cavity magnetron", "u": "/e/energy-and-power/cavity-magnetron/", "s": "High-power vacuum tube enabling compact radar and microwave ovens."}, {"n": "Circuit breaker", "u": "/e/energy-and-power/circuit-breaker/", "s": "Resettable safety device that interrupts overcurrent to protect circuits."}, {"n": "Cathode ray tube", "u": "/e/energy-and-power/cathode-ray-tube/", "s": "Vacuum tube display that enabled television and computing."}, {"n": "Oil well", "u": "/e/energy-and-power/oil-well/", "s": "A drillhole designed to bring petroleum hydrocarbons to the surface."}, {"n": "Petroleum", "u": "/e/energy-and-power/petroleum/", "s": "A fossil fuel central to modern industry and climate change."}, {"n": "Petrochemical", "u": "/e/energy-and-power/petrochemical/", "s": "Chemical products derived from petroleum and other fossil fuels."}, {"n": "Pipeline", "u": "/e/energy-and-power/pipeline/", "s": "Pipelines are a safe, economical system for long-distance transport of liquids and gases."}, {"n": "Power supply", "u": "/e/energy-and-power/power-supply/", "s": "Device converting electric current to power electrical loads."}, {"n": "Pumping station", "u": "/e/energy-and-power/pumping-station/", "s": "Public utility buildings that pump fluids to overcome gravity."}, {"n": "Reservoir", "u": "/e/energy-and-power/reservoir/", "s": "Artificial lake created by a dam to store fresh water."}, {"n": "Renewable energy", "u": "/e/energy-and-power/renewable-energy/", "s": "Energy from replenished natural resources, increasingly replacing fossil fuels."}, {"n": "Nuclear technology", "u": "/e/energy-and-power/nuclear-technology/", "s": "Technology harnessing nuclear reactions for energy, medicine, and weapons."}, {"n": "Microwave oven", "u": "/e/energy-and-power/microwave-oven/", "s": "An electric oven using microwaves for rapid food heating."}, {"n": "Refrigerator", "u": "/e/energy-and-power/refrigerator/", "s": "A thermally insulated appliance that cools food below ambient temperature."}, {"n": "Refrigeration", "u": "/e/energy-and-power/refrigeration/", "s": "Artificial cooling that transformed food preservation and human settlement."}]