*Hernández Hernández Alejandra

*Martínez Guzmán Brenda

*Sánchez de Jesús Ytzel Anahí

*Ramírez Ramírez Jessica

*Valencia Vergara Emanuel

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

BIODIESELBiodiesel 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.

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.

Solar Power Chargers 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.

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

GREEN ROOFSAZOTEAS VERDES

The incorporation of a domestic solar hot water in residential homes has becomeincreasingly popular in recent years. The basic concept of all systems solar hot water is to use the sun's energy to heat or preheat water, thereby reducing the requirements for gas or electricity to produce hot water.

Solar water heater

Wind energy is the energy from the wind, ie, the kinetic energy generated by the effect of air currents, and is transformed into other useful forms of human activities.The wind comes from the Latin term aeolicus belonging or relating to Aeolus, god of the winds in Greek mythology. Wind energy has been used since ancient times to move the ships powered by sail or operate the machinery of mills to move their blades.

Wind Power

Un vehículo eléctrico es un vehículo de combustible alternativo impulsado por uno o más motores eléctricos. La tracción puede ser proporcionada por ruedas o hélices 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 propulsión, como es el caso de los trenes de levitación magnética.

An electric vehicle

The hydrogen fuel cell was invented in the mid-nineteenth century and a century later began to be used by NASA for space travel.By combining hydrogen and oxygen fuel cells can produce enough electricity emit only pure water as waste. They are so clean that astronauts actually drink the water produced by fuelcells shuttle. Hydrogen can be obtained from fuels such as natural gas.

Hydrogen Battery