Posts Tagged ‘solar energy’
Functions of living substance
December 3, 2011 | 
Author Compared with other substances Biosphere (nutrient, rigid, radioactive substance, the scattered atoms and matter space origin) living substance plays greatest role and performs several functions. Between the rigid, lifeless, part of the biosphere, too rigid natural bodies and living organisms, its inhabitants, is a continuous flow of matter and energy. A steady stream of solar energy, green plants, absorbable is converted into chemical energy. Synthetic organic compounds (sugars, proteins, etc.), moving from one organism to another as a result of their food, are enclosed in them energy. Plants consumed by animals which, in turn, become victims of predators and t. d. this transition and there is a coherent and orderly flow of energy in the biosphere.
Energy is defined as the common quantitative measure of the movement and interaction of all types of matter. Its properties are described as the laws of thermodynamics. The first is the law of conservation of energy States that energy can change from one form to another, but it does not disappear and are not re-created. The second is the law of entropy – can be formulated as follows: the energy of any system is as thermodynamic equilibrium or maximum entropy. If the temperature of a body or surface of the Boulder or the site is valid, the land above air temperature, this system is to equilibrium. Boulder or land will give heat until its temperature is equal to the ambient air temperature. The energy of any living organism can be scattered in heat form. Finally comes the State of thermodynamic equilibrium and further energy processes become impossible. To the maximum entropy is not state of the organism or system must constantly draw energy from the outside and constantly strive to thermodynamic equilibrium. Otherwise, there comes the death of the organism and irreversible degradation of the system.
Some of this energy always dissipates as unusable heat energy. The efficiency of energy transformation of light into potential energy of chemical compounds in the green sheet is always less than 100 per cent .
Posted in Energy | 
Tags: Chemical Energy, Energy Plants, Energy Transformation, Law Of Conservation Of Energy, solar energy, Thermodynamic Equilibrium | 
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Energy Replacement
The demand for energy for hundreds of years is very large. Many of the problems posed by the use of fossil fuels with the amount of which is used today. Problems encountered in can be overcome by two things.
First, people can save on supplies of fossil fuels by reducing extravagance. Second, people can utilize the energy derived from alternate sources. One of the replacement of fossil fuels is nuclear energy, but the use of this energy can lead to a separate issue as well. Solar energy, hidroelektronik, and geothermal are examples of sources that can be renewed, or will not run out, unlike fossil fuels.
Posted in Alternative energy | Tags: Alternate Sources, Extravagance, Fossil Fuels, Geothermal, Hundreds Of Years, solar energy | Comments Closed
Fun Facts About Solar Energy
There are tons of cold, hard facts about solar energy out there, but what about fun facts about solar energy?
While solar energy and its related renewable energy cousins, such as wind, geothermal and hydroelectricity, are serious business and options that are being considered to be potential saviors of our planet as we look at a future that has the threat of global warming hanging over it, i am not saying to say there’s not a lighter side to solar and renewable energy.
Sometimes you’ve just constantly some fun and let off some steam in amongst all the serious business of saving money and preserving the planet, so let’s do just that and check out some fun facts about solar energy.
1. Solar energy is available to us in 2 forms – light and heat.
2. When you open your drapes each morning to let some light in, were you aware that you’re also heating up your home?
3. The speed of light is 186,282 miles per second and it takes light approximately 8 minutes to reach Earth. So, light covers the distance of over 90 million miles from the sun inside of 10 minutes!
4. Particles of light are called photons.
5. The “photovoltaic effect” was discovered in the 19th century by French physicist, Edmund Becquerel, when he noticed that when light struck a semiconductor material such as selenium, it generated a small electrical charge.
6. The word photovoltaic is a variety of the words “photon”, meaning, a particle of light, and “volt”, being a measure of electrical force.
7. Modern solar cells operate using the photovoltaic effect, with silicon acting as the semiconductor.
8. Next time you eat Springlike chips, don’t throw the tube away. You need to use it to heat hot dogs! It’s true. You just need the can, a skewer (slightly longer than the can), copier transparency and Scotch tape. Cut a rectangular opening about 6 inches by 3 inches in the heart of the can in an attempt to create 2 flaps. Pull the flaps back and cover the opening with the transparency. Put a hole in the metal end of the can and one in the plastic top. Thread a hot dog onto the skewer and put the skewer inside the can so one end goes through the hole in the metal end and then thread the hole in the plastic top over the other end of the skewer, in order that the skewer with the hot dog on it is suspended during the can. Take the cooker out and place it in direct sunlight, adjusting it here and there to ensure it’s tracking the sun, and, within 30 minutes or so, you ought to have a freshly cooked hot dog!
9. In the 19th century, John Herschel, a British astronomer, cooked food using solar thermal heat while on an African expedition (Absolutely suit, what did he cook?!!??! A hot dog?).
10. Solar panels and solar collectors are different. A panel converts sunlight to electricity and a collector absorbs heat which it transfers to air or liquid.
11. The sun beams down more energy in 1 hour than the whole planet can use in an entire year.
12. Solar energy is used to power more than 10,000 houses in the U.S.A.
In the serious world of solar, a world that sometimes takes itself too seriously, it’s good to let off steam and lighten things up a bit and just have some powerful fun. Hopefully, these facts made your solar day a little more fun.
Posted in Alternative energy | Tags: Alternative energy, alternative power, business, cheap living, electric prices, energy, John Herschel, power solar energy, Renewable, renewable energy, Solar, solar energy, Technology, wind solar power | Comments Closed