1. * Hernndez Hernndez Alejandra *Martnez Guzmn Brenda *Snchez de Jess Ytzel Anah *Ramrez Ramrez Jessica *Valencia Vergara Emanuel

2. 3. WATER BASED CALCULATOR

A water-based calculator, we avoid the need for batteries, this system works with water or any liquid as an electrolyte, to allow the ion exchange between the zinc Terminals and we generate a potential difference sufficient to activate the calculator . A very interesting idea

4. BIODIESEL

Biodiesel is a liquid biofuel derived from natural fats such as vegetable oils or animal fats, with or without prior use, through industrial processes of esterification and transesterification, and applied in the preparation of total or partial substitute of petrodiesel oil or gas oil.

5.

Ventajas - The production of biodiesel is an alternative land use that prevents erosion and desertification which may be exposed those agricultural lands, for market reasons, are being abandoned by farmers.

- It has no sulfur compounds so as not eliminate combustion gases.

6. SolarPowerChargers

Solar battery chargers up to now were one of those gadgets that you saw only as prototypes, and if there were any available were expensive, and without many options. But now has come on the market one called Freeloader, which can solve all the problems of these boots.

7. Cell electricity

The fuel cell is an experimental device to generate electricity through a spontaneous redox reaction in which the oxidizing substance is separated from the gearbox so that the electrons must pass through a wire to the oxidant reducing substance. The electric current flows from the anode to the cathode because there is a potential energy difference between the electrodes

8.

GREEN ROOFS

AZOTEAS VERDES

9. The incorporation ofa domesticsolarhot water inresidential homeshas becomeincreasinglypopular in recentyears.The basic conceptof all systemssolar hot wateris to usethe sun's energyto heat orpreheat water,therebyreducingthe requirements forgasor electricityto producehot water. Solarwater heater 10. Wind energy is theenergy from thewind, ie,the kinetic energy generatedby the effect ofair currents,and istransformed into otheruseful formsof human activities. Thewindcomes from the Latintermaeolicusbelongingor relating toAeolus,god of the windsin Greek mythology.Wind energy hasbeen usedsince ancient times tomove the shipspoweredby sailor operatethe machinery ofmillstomove theirblades. Wind Power 11. Un vehculo elctrico es un vehculo de combustible alternativo impulsado por uno o ms motores elctricos. La traccin puede ser proporcionada por ruedas o hlices impulsadas por motores rotativos, o en otros casos utilizar otro tipo de motores no rotativos, como los motores lineales, los motores inerciales, o aplicaciones del magnetismo como fuente de propulsin, como es el caso de los trenes de levitacin magntica. An electric vehicle 12. Thehydrogen fuel cellwas inventedin themid-nineteenth centuryand acentury laterbegan to be usedby NASA forspace travel. Bycombining hydrogenand oxygenfuelcellscan produce enoughelectricityemitonly pure wateras waste.They areso clean thatastronautsactuallydrink thewater produced byfuelcellsshuttle.Hydrogencan be obtained fromfuels such asnaturalgas. HydrogenBattery