November 11th, 2009
green energy
James Stewart asked:


What is Green Energy - It’s all around us. We can see it, feel it, touch it and even consume it. Sounds a little bizarre right? Well, it’s quite true but what on earth is it?

Primarily, I’m talking about sun and wind - sources of clean, natural energy, more commonly known as green energy.

There are also 3 other sources of Green Energy in use today and these are in the form of tidal energy (water), biofuel and geothermal. However, the more common forms of green energy resources are solar and wind.

Solar energy is very basically the conversion of sunlight into electricity. Solar cells convert sunlight directly into electricity and are used to power almost anything ranging from small calculators and watches, right up to huge satellites which orbit the earth. All TV and communications satellites are powered by solar energy using solar technology.

Wind energy is simply the conversion of wind energy into electricity. This is achieved by using a wind turbine. Wind Turbines are a great resource of natural green energy and are often used in conjunction with solar panels or as an alternative to solar energy. The benefits and uses of Wind energy are such that wind is actually the fastest growing energy source worldwide.

These energy sources are generally natural, renewable and endless sources of energy used to generate thousands of hours worth of electricity and power for numerous uses all across the world. These forms of energy are much cleaner forms of energy since they cause far less pollution than the traditional burning of fossil fuels by emitting no carbon or other greenhouse gas emissions.

They create less pollution and in turn are much more environmentally friendly forms of energy.

On a very basic level, the electricity we currently use in our homes is mostly generated at a power station. This is basically done by using large electromechanical generators which are driven by heat engines fueled by burning fossil fuels such as natural gas or coal. This method pollutes the earth by emitting carbon and other greenhouse gas emissions into the earths atmosphere.

We all easily make a big difference at home. By installing solar panels or a wind turbine, you can harness the power of nature and provide your home with an almost limitless supply of clean, green energy.



DUDLEY

Where does the energy for gravity come from?

November 11th, 2009
energy
SnizzleDizzle asked:


According to the law of conservation of energy, energy is not created from nothing. It is either converted from mass or from other types of energy. In this case, where does the energy for gravity come from?

For instance, the force pushing down the water in Niagara Falls is gravity, and we generate electricity from this energy. Where does this energy come from?

DENIS

How do I keep others energy from interfering with my own?

November 8th, 2009
energy
pynk_nymesis asked:


I’m a hairdresser and am in very close proximity with many different people every day. I’m also very sensitive to other people’s energies. I’ve noticed that this has began to effect me in a negative way because I bring all of this extra energy home with me and now I’m beginning to have problems sleeping and many other things that are effecting my every day life. SO my question is how can I keep others energies from interfering with my own energy, or how can I release this energy once I’m done with work?

WILLIE

What is the best energy drink or energy bar?

November 8th, 2009
energy
diamondicebezzle asked:


I’m going for a pole climbing test today and I need and energy brink or bar. What is the best energy drink or energy bar? I am looking for one that really works.

JOHNNY

November 8th, 2009
green energy
Jason Gilford asked:




It seems like with “Green Energy Sources” System you get an amazing opportunity to cut these irritating electricity-bills once and for all. You may be surprised but this technique can be implemented quite easily by any novice user. In the following quick article you’ll be able to explore and know more about this creative technology.

Some background

This “Green Energy Sources” System isn’t something that you go and buy in a store - you need to have one of these recommended guides that explain how to assemble Solar-Panels without having to be an expert. Just like everything else in life, some guides deliver and some other don’t; check whether it offers the following: clear information, detailed diagrams, video tutorials, and technical support. Anyway, here are some important benefits and tips that can help you to know a little more about this topic.

What is in it for us?

This solution provides various benefits; here are just a few of them:

* Increases the value of your home by thousands.

* Extremely easy to be implemented by almost anyone.

* Should you create more energy than needed; the power-company will actually pay you!

* Uses natural and clean resources.

* Knowing that we are doing our part to conserve the planet.

Quick tip

Pulling yourself “off the grid” all at once isn’t recommended - do it gradually and slowly, use your new sys. while keeping the ‘Main-Grid’ as backup for possible extreme electricity usage.

Bottom line

“Green Energy Sources” System truly brings outstanding results with a minimal investment on both time and cost. If we go a little further, it wouldn’t be that hard to discover other pluses provided by this remarkable ‘machine’, simply because it is about to change the entire industry forever. Now that we understand how it works the best tip would be to evaluate it as in most cases it will take you no more than a single weekend to have it working.



FRANCIS

November 8th, 2009
green energy
Gen Wright asked:


ing entails using green technologies to produce green energy. Green technologies imply harnessing the eco-friendly natural resources like solar and wind power to produce energy in order conserve the earth and its environment.

Solar energy is one of the major sources of renewable energy. It involves using the power of Sun to generate energy. Solar energy is an ideal replacement for perishable energy resources like coal and petroleum that are being used for decades. The need for replacing the traditional energy resources arises because of the dwindling stocks of such energy and their harmful impact on earth’s eco-system. Major part of solar energy is absorbed by the water bodies like oceans and rivers and other processes like photosynthesis on the earth. Solar energy is utilized to produce water cycles, food and life sustaining atmosphere that is essential to support life on earth. Solar energy is now being utilized on daily basis to produce different forms of energy. Solar panels are used to convert the power from sun into electrical energy, which is then used to run different electrical appliances in the homes and the workplaces throughout the world. Solar panels are also used to convert the solar power into heat energy, which is then utilized to heat the water in the water heating systems like boilers and geysers. Solar cookers are used to convert the solar power into heat energy, which is then used for cooking and heating foods. Solar cookers are also utilized for heating and boiling water, pasteurization of milk and drying food items. The temperature generated by these cookers can range anywhere between 90 to 150 degrees celsius.

Wind energy is another clean and renewable source of energy that involves harnessing the power of wind. Large numbers of wind turbines are built throughout the world in order to capture the kinetic energy of wind, which is then converted to electrical energy to power industrial units and large residential areas. The latest technology called vertical axis wind turbines that just require to be pointed towards the wind’s direction in order to generate electricity for homes is gaining in popularity across the world. Home based wind energy system includes a wind turbine and generator that are mounted on top of the tower and the associated controls and equipments that are located in separate cabin. There are three wind energy systems that can be used for generating electricity for home. First is Off-Grid or Stand Alone system. This system is installed when your home is not connected to the grid. You will only use the electricity generated by the Off-Grid system. Second is Grid-Tied or On Grid system that comes with battery back up. With this system, you can use the power supplied by grid as well as electricity generated through the wind energy system. With battery back up you can store the energy and use it in case of a power outage. Third is Grid-Tied or On Grid system without battery back up. This works the same way as the second system except you can’t use it during the power outage as there is no back up system installed.

Solar energy and wind energy are the two clean and renewable sources of green energy that is essential for green living.



RAMIRO

November 4th, 2009
green energy
Gerry Morton asked:


We all want a fast metabolism. A fast metabolism means that our bodies are efficiently converting food into energy and burning fat as fuel instead of storing it for a rainy day. In other words, with a good metabolism, we’re energetic, active, healthy, alert and lean, and with a slow metabolism, we’re hungry, sluggish, foggy-headed, unhealthy and fat. No brainer, right? Especially when a slow metabolism can keep your body from getting the nutrients it needs, eventually leading to breakdown. 

A fast metabolism is tied to a simple healthy diet with the right ratio of lean protein (like fish or whey protein), unprocessed carbohydrates (like leafy greens or green drink powder) and healthy fats (like nuts or flax oil).  It’s not tied to processed quick-fixes like diet pills, caffeinated drinks or sugary beverages that make you feel “speedy” and then make you crash. No, these ups and downs throw off your blood sugar and slow your metabolism even more! Plus, they only further add to environmental toxins building up in your body and slowing your metabolism. 

The good news is that there are easy, all-natural ways to speed your metabolism that last all day. And whey you feel energetic on a steady basis, you’re more active and less hungry causing a snowball effect that benefits your overall well-being and body tone in the long-term. 

One of our favorite energy-boosting metabolism speeders is green energy powder. The higher energy levels it gives you keeps you moving and burning more fat and leaves you with that fast metabolism snowball effect. Here’s how healthy energy drinks give you more energy naturally:

•  They have all-natural green tea, a natural stimulant. 

• They’re full of antioxidants that keep cells healthy, giving you plenty of energy to use on whatever you want. 

• They contain probiotics and digestive enzymes that help digestion, keeping the body cleaner, more efficient and more energized. 

• They have lots of chlorophyll that alkalizes and cleans the blood. This gives you more red blood cells to carry oxygen in and metabolic waste out. 

• They’re all-alkaline and help keep your body in ideal alkaline PH state. 

So how can you speed up your metabolism naturally to stay energized and lean? Follow This Breakfast Shake 2-Step Plan!

#1. Get the optimum amount of protein, carbs and fats at every meal and snack. What’s the optimum amount? A fist-size portion of unprocessed carbohydrates, a thumb-size portion of healthy fats, and a fist-size portion of lean protein.  Your body needs all three to :

• Turn carbs into glucose to fuel your body and brain 

• Stabilize blood sugar 

• Provide fiber to curb hunger 

• Burn body fat 

#2. Have a green energy drink for breakfast and plan ahead by having the ingredients on hand. This breakfast drink is easy to prepare, tastes delicious and has the perfect nutritional balance that we just talked about in step #1. 

Blend the following to desired smoothness:  liquid (water, milk); green drink powder; pure protein powder; good fat (omega oil);  fresh fruit; ice; optional essences and spices (ginger, nutmeg, cinnamon, mint, vanilla ).

Ready to be energized all day long thanks to a healthy metabolism? Start by shopping for the ingredients for your breakfast smoothies at EnergyFirst.com…



ROBBY

What fraction of energy is used to change the internal energy of water?

November 3rd, 2009
energy
khuezi asked:


The molar enthalpy of vaporization of water at 373 K is 41.16 kJ/mol. What fraction of this energy is used to change the internal energy of the water? (Assume that water vapor is an ideal gas.)

What fraction is used to do work against the atmosphere?

What equation do I use? Thanks
edit: i put in 100% for % in atmosphere, it’s wrong

DORIAN

November 1st, 2009
green energy
Jim Smoot asked:


Many people dream of becoming energy independent. They see green energy sources not only as a way to greatly reduce their energy bills each month, but they also see it as a way to power their homes in a way that does not burn the Earth’s resources, and does not harm the environment.

The green energy sources that are the most popular are solar energy and wind energy. While there are other forms of green energy, these are the most popular because they are the two sources that are the most readily available. You do not have to relocate to take advantage of these sources, and they are both relatively inexpensive to get started with. While making a complete change-over in your home can be a serious investment, it is possible to get stated on a smaller scale, and make a gradual change-over as you can afford to.

Solar Energy

The most popular form of green energy is solar energy. It collects sunlight using solar panels that convert that light into electricity. One reason this is so popular is because the system, once in place, is relatively low maintenance. Other than keeping the solar panels clean, there is not much to do to keep your solar energy system running. Because there are not any moving parts to wear out, breakdowns do not typically happen with this type of system.

The disadvantage of a solar energy system is that it requires a lot of direct sunlight to see real benefits from the system. If you are unfortunate enough to live in an area that has considerable cloud cover on a regular basis you may not see the same benefits as someone living in a sunny location.

That does not mean that you should discount solar energy as a good energy source, it just means you will need to take steps to make the most of the times the sun is shining brightly. By increasing the number of panels you will be able to generate more energy in a shorter period of time. If you have your solar generators hooked to a battery system, you will be able to capture that extra energy to use at night, or on cloudy days.

Wind Energy

Another green energy source that has gotten quite a bit of attentions is wind energy. This form of energy harnesses the power of using propellers that turn a turbine which creates electricity. The good part about modern wind powered turbines is that they do not require a lot of wind to operate them. A steady breeze is often enough to turn the blades and begin generating electricity. Of course, the more wind you have, the quicker you will be able to generate significant amounts of electricity.

Unlike solar systems, you are not limited by the time of day for generating power. These systems will work day or night. Like the solar energy systems, you can hook a wind powered generator to a battery systems so you will have a steady supply of energy.

The biggest disadvantages of a wind energy systems is that the turbine does require more space that the solar cells, and are not as easily incorporated into the design of a house. A wind turbine also requires more maintenance that solar energy systems. It has more moving parts so you need to perform scheduled maintenance on the system to reduce the chances of a breakdown.

Green energy sources are a great way to reduce your carbon footprint without having to do away with many of the conveniences of modern life. You can lower your energy bills, and be more environmentally friendly in the process.

 



MARK

November 1st, 2009
green energy
James Copper asked:


In the United States, Canada and Australia both commercial and residential consumers can buy green energy from their standard local utility provider of from a provider that specializes in green energy. Many third party suppliers of energy provide green energy electricity that is produced from renewable resources. This energy is delivered to consumers by way of their local electric utility company. The consumer who opts for this green energy course pays a small premium each month on her or his utility bill as the additional cost of the green energy they are getting. The other option is to buy directly from the green energy supplier.

Of course, when a consumer buys the green energy via the local utility company he or she can not know its really green energy in other words, they do not know that they truly got what they paid extra for. It is a matter of trust. The local electric company buys the electricity from the various producers. These can be nuclear, coal, hydroelectric power on a large scale or green energy providers such as solar and wind energy producers.

Must electricity from the local utility company in any country comes from fossil fuels or nuclear power that is not renewable and or pollutes the environment to a high and dangerous level. Green energy is the current provider of a minimal percentage of our worlds electricity. In fact, when utility companies buy green energy for the consumers that request it they generally only buy 25 percent of what they ultimately provide to all.

Consumers who sign up with their local utility provider to pay a premium each month for green energy are not only helping to save their environment but they are also sending a message to the utility companies and the legislature that they are willing to pay extra for healthy air for us all.

There are environmentally conscious, forward thinking countries such as the Netherlands that have committed themselves to matching their consumers purchase of green energy with an equal amount of green energy buy for governmental use. The government of Holland exempts green energy producers and users from its pollution tax. This exemption brings the cost of green energy consumption down considerably.

Several organizations in Europe promote the consumption of green energy, and there are a number of green energy providers, although the high cost of electricity in those countries has kept the use of the less expensive gas and oil the majority provider.

At work now are efforts to distribute cheap renewable electricity in these countries so the average electrical consumer can afford to support the environment and clean air efforts with the use of green energy products. Consumers can install their very own renewable green energy system, based locally.

This may be solar, wind or even water power. Geothermal heat pumps also provide green energy by tapping a few feet into the earths temperature.

Many U.S. states now offer monetary incentives for those who want to use the more costly green energy electricity sources.



ALVARO