How can I save energy? People who want to save energy costs can make simple changes in the House for that power not to waste energy. To begin you must clean or change the furnace filter at least once a month to save energy since the dust and dirt clog the filter, therefore, the furnace has to work more. If you have a heating system in the House, it should be inspected on a regular basis; annual maintenance can save energy up to five per cent. Furthermore, it is viable to get a programmable thermostat and install it in the House. The programmable thermostat automatically lower the temperature during eight hours per night, the heating Bill also will reduce by ten percent. The air vents in the home should be vacuumed on a regular basis. Do not allow the furniture and curtains to block the air flow. Use low-cost plastic deflectors to channel air under tables and chairs. Close curtains and blinds at night to protect themselves from the cold air. Open curtains and blinds during the day so that the Sun can heat the House. Forget about using space heaters, which are costly and dangerous. If a House has hardwood floors or tiles, mats must be purchased to keep the House warm. If you won’t be in the House, the thermostat must be lowered to 55 degrees Fahrenheit (12.8 degrees Celsius). This saves energy and keeps your water pipes from freezing. Wood-burning fireplaces owners must clean them periodically, when the fireplace is not in use they must be sealed and glass doors should be kept closed. Other energy saving tips include lowering the thermostat to 120 degrees Fahrenheit (48.9 degrees Celsius) hot water heater. When wash dishes or clothes in the machine dishwasher or washing machine, must always be washed in cold water; the dishes are dried outdoors instead of using the dishwasher in hot dry function. Energy bands are ideal for all kinds of electronic devices in the home. Computers and monitors must be turn off when not in use. Ceiling fans should be used to help cool the House in summer. During the night and early in the evening, turn off unnecessary lights to maintain fresh rooms. A central air conditioner should be cleaned regularly. Set the fan air conditioners to on instead of auto. Use compact fluorescent light bulbs to energy-saving. They use less energy and last longer than regular bulbs. Here are just some ways that consumers can save energy at home. Source: Press release sent by sucrepr.
Energy efficiency can be carried out as easily as flipping move turning off lights when you leave a room or keep the thermostat at a suitable place to establish it cold on a hot day. A typical family spends around $2,000 a year on home utility bills. Heating and cooling are on energy bills that occupy half of the energy consumption of a House, followed by large appliances and electronic devices, equipment for water heating and lighting. Below, we’ve included a few very simple steps to save energy, although often overlooked, you can apply to take advantage of their energy consumption. If you are committed to saving energy and money, consider well observe these recommendations for each category to achieve greater efficiency:-put the thermostat between 78 and 80 degrees during the warmer months. During the colder months, an adjustment of the thermostat between 68 to 70 degrees is highly recommended. -Use a programmable thermostat to manage your heating system per day and cooling needs.
Try with a peak of savings without thermostat. -Try to circulate air with portable fans through the roof to make the room feel cooler. -Turn off the TV, fan and lights or lamps when you leave a room. -Buy compact fluorescent lamps to replace incandescent bulbs which are less efficient. -Buy appliances and low consumption products.
Check Energy Guide label and look for the ENERGY STAR logo on the purchase of these items that help prevent the dreaded global warming. -Turn off or unplug electronic devices such as computers, tools, cell phones, digital cameras and MP3 Chargers, when they are not being used. -Reduce use of hot water take short showers, use cold water to wash clothes, etc – try to use natural gas instead of water heaters, dryers, stoves because they are energetically more efficient than their electrical counterparts. Consider the possibility of an economic reimbursement to use Natural Gas – perform an energy audit of origin to reduce common inefficiencies.
The history of electricity refers to the study and use of electricity, the discovery of their own laws as a physical phenomenon and the invention of devices for their use. The phenomenon, outside of his relationship with the human observer, has no history; and if it is considered as part of the natural history, it would be the same as time, space, matter and energy. As it is also called electricity to the scientific branch that studies the phenomenon and the branch of technology that is responsible for implementing it, the history of electricity is the branch of the history of science and of the history of technology which deals with its emergence, development and evolution. One of its initial milestones may be around 600 BC, when Thales noted that rubbing a rod of amber with a skin or wool, obtained small loads (triboelectric effect) which attracted to small objects, and that long time rubbing could cause the appearance of a small spark. Near the Greek city of Magnesia is they were called stones from Magnesia, which possessed magnetite. The ancient Greeks noted that the pieces of this material attracted between them, and also to small iron objects. Electricity has evolved since the perception of the phenomenon to its scientific treatment, which would not be systematic but until the 18th century. Were recorded along the ancient age and average other (rather isolated) observations as well as medical intuition (use of electric fish in diseases such as gout and headaches) referred to by authors like Plinio the elder and Scribonius long, or archaeological objects as diverse as questionable interpretation, at this point refer to the Baghdad batteryan object found in Iraq in 1938, dated in 250 BC, which resembles an electrochemical cell.
A very exciting topic for those who are interested inquire about everything what the universe holds. Points out that dark energy is the cosmological constant of Einstein, or, in other words, that nothing weighs something, said Alexey Vikhlinin, of the Smithsonian Astrophysical Observatory (Cambridge, United States.UU.), who has directed the study. Dark energy would be the vacuum energy, physicists like to visualize as a field of very light particles in an unstable state, basically a waste of the State of the universe just after the Big Bang. If they are right, when all these particles become matter, within some billions of years, the universe will finally stop accelerating. espacioprofundo.com ar reminds us, that dark energy was discovered by two teams of astronomers, working in Australia and the U.S., making searches for supernovae distant to determine distance (you can based on the observation of a supernova know the distance that is. A type of supernova (given that is the S1a which have a very precise mechanism by which explodes and makes them always to explode with the same actual brightness (absolute magnitude), it makes that they can be taken as a source of distance, and of course, if the distance is to the supernova will know the distance to the Galaxy that contains it.) The truth, that on her Wikipedia gives us, that in physical cosmology, dark energy is a hypothetical form of matter or energy that would be present throughout the space, producing a negative pressure and tends to increase the acceleration of the expansion of the universe resulting in a repulsive gravitational force. Assume the existence of dark energy is the most frequent way to explain recent observations that the universe appears to be expanding with positive acceleration. In the standard model of cosmology, dark energy currently contributes almost three-quarters of the total mass-energy of the universe. Two possible forms of dark energy are the cosmological constant, a density of scalar constant energy that fills the space in homogeneous form and fields such as quintessence: dynamic fields whose energy density can vary in time and space. In fact, contributions from the fields scalars that they are constant in space normally also included in the cosmological constant. It is thought that the cosmological constant originates in the power vacuum. Scalar fields that they change with the space are difficult to distinguish from a cosmological constant because the changes can be extremely slow. To distinguish between the two very precise measurements of the expansion of the universe, are needed to see if the expansion velocity changes with time. The expansion rate is parameterized by the equation of State. The measurement of the State equation of dark energy is one of the largest us also noted challenges of current research of physical Cosmology in 1998, observations of distant type 1a supernovae, carried out by the Supernova Cosmology Project in Lawrenc Berkeley National Laboratory and the High-z Supernova Search Team, suggested that the expansion of the universe was accelerating. Since then, this acceleration has been confirmed by several independent sources: measurements of the cosmic background microwave, Lensing, Primordial Nucleosynthesis of light elements and the structure of the universe on a large scale, as well as an improvement in measures of supernovae have been consistent with the Lambda-CDM model. We are told also, type 1a supernovae provide the main direct proof of the existence of dark energy. Due to Hubble’s law, all distant galaxies move apparently away from the milky way, showing a shift to red in the light spectrum due to the Doppler effect. The measurement of the scale factor at the time the light was emitted from an object is easily obtained by measuring the redshift to the Red of the object in recession. This displacement indicates the age of a distant object way proportional, but not absolute. The existence of dark energy, of any form, it is necessary to reconcile the measured geometry of space with the total amount of matter in the universe. Measurements of the cosmic microwave background latest, carried out by the WMAP satellite, indicate that the universe is very close to being flat. So the shape of the universe is flat, the mass/energy density of the universe must be equal to a certain critical density. Subsequent observations of the cosmic background microwave and the proportion of elements formed in the Big Bang have put a limit to the amount of baryonic and dark matter that can exist in the universe that has only 30% of the critical density. This implies the existence of a form of additional energy that has 70% of the mass remaining power. These studies indicate that 73% of the mass of the universe is composed of dark energy, 23% is dark matter (cold dark matter and hot dark matter) and 4% baryonic matter. The theory of the structure on a large scale of the universe, which determines the formation of structures in the Universe (stars, quasars, galaxies and galaxy clusters), also suggests that the density of matter in the universe is only 30% of the critical density. On the other hand, he says, which in a few million years we will not be able to see the galaxies in space that surrounds us. At least that is what emerges from new and exciting discoveries made by NASA regarding the existence of dark energy. This energy is that accelerates the expansion of the universe and makes the neighboring galaxies to flee, increasingly faster, around us. Just as the so-called dark matter was the favorite resource for scientists to explain why the universe could be closed, now speculate about the nature of a mysterious dark energy, which could explain this effect of acceleration. This theory has received a significant boost thanks to the results of some recent observations with the telescope in orbit of Chandra x-ray, she photographed some clusters of distant galaxies. Since light takes to reach us a time proportional to the distance that separates these galaxies from us, the more far away is the observed object, oldest is the image we get from him. The astronomers to observe hot gas through x-rays of recent clusters (nearby) and older, with more than 5,000 million years of existence (more distant) have seen how you have changed the number and the mass of clusters of galaxies over time.The first conclusion that can be drawn from the study is that Einstein finally was right when he claimed that general relativity works on large scales and that was necessary in their equations cosmological constant (although then throw out it). If we combine all the data, we have the proof that dark energy is the cosmological constant of Einstein, or, in other words, that nothing it weighs something, said Alexey Vikhlinin, of the Smithsonian Astrophysical Observatory (Cambridge, United States.UU.), who has directed study. Dark energy would be the vacuum energy, physicists like to visualize as a field of very light particles in an unstable state, basically a waste of the State of the universe just after the Big Bang. If they are right, when all these particles become matter, within some billions of years, the universe will finally stop accelerating. Ultimately as shown in solociencia.com, astrophysicists, in recent years, have found indications of a force called dark energy, in observations from the farthest reaches of the universe, billions of years light-years away. It should not be forgotten that in 1929 the astronomer Edwin Hubble showed that galaxies moving away from each other, which supported the theory that the universe has expanded since the Big Bang. In 1999, cosmologists announced evidence that a rare force called dark energy, actually caused the accelerated expansion of the universe.However, the expansion is more slow what could be due to the force of gravity between galaxies. To develops the battle between the attraction of gravity and the repellent force of dark energy, cosmologists pondering whether expansion will continue forever or whether the universe will collapse into a Big Crunch. According to the latest measurements, there are 5-6% of baryonic matter, 30% dark matter and 65% of dark energy in the universe.
Always developed countries have used large amounts of energy to feed its technological and industrial growth, but in recent years in developing countries have become major consumers of energy for its development. Electrical power is usually generated at a power plant that converts other kinds of energy into electricity. Each system has advantages and disadvantages, but many of them are worrying environmental problems. The main feature of nuclear energy is the high quality of energy that can be produced per unit mass of material used in comparison with any other type of energy known by human beings, but surprised the poor efficiency of the process, since it wastes from an 86 to 92% of the energy that is released. Under normal operation, a nuclear power plant releases very little pollution of any kind on the environment. But it produces several types of nuclear waste. It produces a few volumes moderate low level waste; which can be removed by placing them simply somewhere that is not accessible for a few years. However, a relatively small amount, perhaps a ton is generated per year in the case of a great nuclear power, high-level waste, which poses a problem to get rid of it.
You can be expected to be dangerous for decades, centuries, even millennia, so it must be methods of disposing of it which are extremely safe. Typically, the majority of these residues are stored in media storms that require a constant and careful attention. Accidents at nuclear power plants pose a serious risk of environmental contamination. Such as the Chernobyl accident, and lately in Japanese nuclear power plants due to the earthquake and subsequent tsunami it released large amounts of radioactive contamination. Advantages nuclear energy, for example in the European union generates a third of the electrical energy that is produced in this area, thus avoiding the issuance of 700 million tons of carbon dioxide per year into the atmosphere.