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RACHEL CARRIE





Name: Rachel Carrie
Type: Tribute (for the living)

To Honor: Individual(s) Location: , United States

http://www.rachelcorrie.org/ At the age of 23, Rachel Corrie was full of life. At the age of 23, she was a senior in college ignited by a passion for justice. At the age of 23, she traveled to the Gaza strip as an activist for peace. And, it was at the age of 23 that Rachel Corrie knelt to the ground wearing an orange fluorescent jacket as a 9-ton Caterpillar bulldozer came toward her, knocked her down, crushed her with its blade, ran her over, backed up, and ran her over again. At the age of 23, Rachel Corrie was loved by family and friends who would never see her radiant life again.


Rachel was killed trying to prevent the demolition of a civilian home by the Israeli army. Thousands of homes had been demolished, and Rachel along with her companions from the International Solidarity Movement were seeking to prevent further destruction. Through non-violence, this group of international activists was following the lead of Palestinians struggling to end the occupation of their lands.


Activists such as Rachel lived in Palestinian homes with Palestinian families hoping to help fend off attacks and destruction. They used their bodies to send a clear message of solidarity and resistance spelled in the alphabet of arms and legs, torsos and necks, hands and feet. It is this unmistakably human language that Rachel chose to speak in the face of machines programmed for death and devastation.


Of course, Rachel was not the first to die from the angel of death demolition policies carried out by Israel in occupied territories. Far from it, Rachel’s life was only one of many cut short by the sword of this oversized angel which feeds at the trough of US aid. Still, Rachel’s death garnered particular attention because US citizens take note when other US citizens die in the jaws of a winged monster who previously flew in other worlds, not ours. The previous victims were darker and of a foreign people. Our moral radar did not extend to their land and hue.


So, Rachel was not singular in her death, but this does not diminish her bravery. Nor should it diminish what her life can mean to us now. On March 16th, it will have been two years from Rachel’s death, and it is on this day that the memory of Rachel’s life can infuse our own lives with humanness. It is on this day that we can realize our world is also the world of Palestinians. It is on this day that we can realize that our world is also the world of Iraqis and Afghanis. It is on this day that we can look past the small horizons of our small worlds and see the stark, chilling reality of a sky filled with angels of death descending again and again, devouring our world, our humanity.


When we see this death-filled sky, we may choose to look away. We may choose to rationalize a way of focusing our vision elsewhere closer to home. We may say to ourselves, “I can do nothing” or “This problem is too big for me.” But, this is why Rachel’s life is yet again so important. Rachel’s life continues to this day to serve as proof that you and I can do something.


Yes, Rachel died in doing something, and we need not seek martyrdom. But, what is important is the manner of Rachel’s life before her death. Rachel died doing something that made her fully alive. As long as you or I believe that we can’t pursue peace and justice, we are only partially alive. We are only partial citizens of the planet. We are only sometimes concerned about some people. We are only sometimes loving and compassionate to some humans. In truth, to be only partially alive is to be one’s own angel of death.


Ultimately, I believe Rachel’s death should not be cause for despair. It should be cause for hope, a hope that each of us can choose to be more fully human despite grim forecasts of probabilities and risks. If we instead remain captive to our doubts and fears, we will only imprison our greatest potential. We will kill our own heroism by handing the keys of fate over to the angels of death.


On March 16th, let us not only remember the life of Rachel Corrie but let us also remember the possibilities of our own life. On March 16th, let us remember that Rachel Corrie at the age of 23 was full of life, a life that can continue to live through us.


(This speech was delivered at a toastmasters club in Berkeley, California. For those living in Berkeley, there will be a celebration of Rachel’s life on March 16th. See www.norcalism.org for details. Brooks Berndt can be reached at brooksberndt2466@yahoo.com .)

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2012 2012 Hydroelectric Photovoltaic



photovoltaic cells for converting solar radiation directly into electricity, using the so-called "photovoltaic effect" based on the properties of some conductive materials appropriate treatment (including the silicon, an element widely in nature), to directly generate electricity when hit by sunlight. A photovoltaic cell is exposed to solar radiation acts as a current source with a characteristic voltage / current depends basically on the intensity of solar radiation, temperature and the surface.

It is generally a square area of \u200b\u200babout 100 cm2, behaves like a tiny battery, resulting in the conditions of typical Italian sunshine, a current of 3 A (Amps) with a voltage of 0.5 V (volts), then a power of 1.5 W (Watt) .

Monocrystalline cells: are produced by cutting a single crystal bar. The main advantage is a high efficiency (up to 16%). This type of cells is very expensive because of the complicated production process. Monocrystalline cells are usually characterized by a homogeneous blue color.
pole cells (multi-) crystalline: they are cast into blocks and then cut into disks. The yield is lower (10 ° 12%), but also the price. This type of cells can be recognized from a design easily distinguishable (because of the different crystal contents). Cells
amorphous: is produced by cathodic deposition of silicon atoms on a glass plate. This type of cell has a lower yield (ca. 4 ¸ 8%), but also adapts to the case of diffuse radiation (clouds, etc.).. The cells so produced are recognizable by a distinctive dark color, also can be made in any geometric shape (circular shapes are possible, octagonal, irregular, and even convex).


types of solar cells: 1) monocrystalline cells, 2) multi-cell poly-crystal, 3) amorphous cells.


from the photovoltaic cell
The scheme
single solar cell, measuring about 10 X 10cm, the device is the primary basis for any mismatch losses.

A PV module consists of a set of solar cells linked together to provide an electrical output (per module) on average between 50 and 100 W.

To increase the power supply is necessary to connect several modules: more modules form a panel and, similarly, more panels form a string.

photovoltaic modules convert light energy into direct current electricity in "real time", ie the production of electricity is simultaneously with the capture of solar energy.

For these and other reasons, a photovoltaic solar generator are needed in addition to other components of the photovoltaic system. The plant types




The photovoltaic system is the set of mechanical, electrical and electronic systems that capture solar energy, transform it into electricity, until it becomes available for use by the user.

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"DIY Wind Generator




Hydroelectric plants generate electricity using the kinetic energy of a quantity of water drawn from the movement of a river (flowing water systems) or stored in a reservoir and released in accordance with the needs of production (plants in the basin).

In a hydroelectric power potential of the mass of water fed through a pressure pipe is converted into mechanical energy from the impeller-turbine group, whose motion in turn is converted into electricity by the alternator group / generator. The energy produced can be immediately used, for example, food industrial, or be placed on the grid, while the water through turbines, without any pollution, is fully returned to its bed further downstream by a natural drainage channel, with no impact on the environment.

The power plant is proportional to the amount of incoming water (flow) and the difference between a levy and the altitude at which water is turbinata (jump). The law in force in Italy leads the standings on the basis of hydraulic installed capacity, whereas small branches with the central power of less than 3,000 kWh and large-scale diversions than those of average power.

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The idea of \u200b\u200bharnessing wind power to generate a rotary motion is centuries old, first cousin of the water wheel technology.
The main advantage of the exploitation of wind energy is a never-ending source of energy and totally free and a limited environmental impact given that the design factor is not required dams and channels as it does for the hydro plants.
The limit of a wind turbine is the reduced air density that generates limited power in the size of the wind turbine. To get an idea of \u200b\u200bthe relationships in play enough to consider that the air density of approximately 1,225 kg / m, is related to 1 / 816 compared to average water.
It so happens that an output of 1 MW represents more or less the lower limit for the applicability of a hydraulic turbine is a power but very respectable for a wind turbine.
The operating principle of a wind generator is more or less well known. A system of blades, placed in rotation by the energy of wind, which generates a rotary motion, through appropriate mechanisms, is transmitted to an electric generator.
If you look at a wind turbine, especially in photography, where you lose the effect of imposing tower of support and the huge blades spinning, you have the feeling of being faced with a quite boring machine, a variant of the windmills that survive in the world with tourist purposes only. In reality the technology used to design and build a wind generator is taken directly from engineering and sophisticated avionics. The writer has worked for more than three decades in the field of mechanical design in various fields, including engineering of hydraulic turbines, and can say that the design of a wind turbine business is of great satisfaction and commitment.