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# The worldwide use of cleaner energy sources could lead to

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### Can hydrogen run a generator to produce hydrogen perpetually?

No. We all can't be versed on every aspect of our world but some parts are important to keep us from falling into poor investments and scams. There are several laws of thermodynamics, essentially how energy works in our world and are a fundamental part of our understanding of physics.

One of those laws suggests that energy like arithmetic will not change unless something operates to change the numbers. The energy that is put into a system (2 + 2) is always going to equal the energy that goes out of a system (4) So just as 2 + 2 is not going to suddenly equal 5 or 6 the energy we put into our system is not somehow going to create more energy. The best we can hope for is to create a system that will somehow gather more energy from another source like solar panels. In this case it is like saying 2 + 2 + 1 equals something more.

In your suggestion you want to add hydrogen to a generator and then use the resulting electricity to produce hydrogen by splitting water and then use that hydrogen to run the engine. But you are leaving out some of the elements. The engine is probably no more than about 25% efficient. That means that 75% of the energy in the hydrogen fuel you use is used to create heat and is lost to friction. So far your equation then looks like 2 + 2 - 3 . The generator also loses some energy to friction. Add to this it takes more energy to split water into hydrogen and oxygen than we recover when hydrogen and oxygen combine to produce some excess energy. So in every step along the way we are losing our desired goal to losses in energy like heat and friction.

But even if the system were somehow perfect it could not be any more perfect than to lose no energy. You will not be creating new new energy with such a system. Even if we could get it to run forever the system is not going to give us new energy we could use for something else as every bit would be used to run the system. This is why we say that efficiency can never be greater than 1 or 100%. And we can not have "over unity" or "perpetual motion" machines.

If we want "free energy" what we could do is make solar panels. And then use those solar panels to gather additional energy from a source outside the system and then produce hydrogen from solar energy. What we can't do is use a solar panel to produce electricity for a light that shines on the solar panel as once again this would be a closed system with no energy flowing into the system.

When it comes to energy systems look for the source of the energy. If it is supposed to be coming from inside the system perpetually then it is likely a scam. If there is an outside source it may be useful depending upon the economics and how much energy we get relative to our energy investment.

Jan 04, 2017 | Green Living

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### What will be our next major source of energy?

The sun and the wind will both be our major source of energy in the future. The sun is always there and the turbines will be needed to supply energy to homes in the winter time. we will see only electric cars on the roads and the airline industry will have to figure out something cause planes do not fly on solar power.

Jan 04, 2017 | Green Living

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### What sources of power do you think will be used in the future?

In my opinion, the use of fossil fuel sources of energy will decrease in the near future. Meanwhile, other forms of clean energy will be cheaper and more available, like: solar, wind and hydroelectric energy.

Jan 04, 2017 | Green Living

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### Whats the best renewable energy source?

The beat renewable energy sources are those sources of energy which can be renewed easily and which is eco-friendly in nature.
Some of the best sources of renewable energy are:
1. Solar energy: The most efficient renewable energy source. The sun rays are absorbed by the solar cells on the solar panel and later it is used as electricity.
2. Wind energy: Used in turbines to make them run and generate electricity.
3. Water energy: Water has been used in hydroelectric plants to produce electricity.
4. Nuclear energy: Nuclear fission is the main source of energy today. The energy generated by this fission is used to produce electricity.

Jan 04, 2017 | Green Living

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### Why do we need renewable energy?

Renewable source energy is needed as an alternative source for various non-renewable sources of energy like fossil fuels.
Some of the basic need of a renewable source of energy are:
1. Very little or low global warming emission.
2. Improves public health as well as environmental quality.
3. More reliable energy providing system.
4. Jobs and other economic benefits.
5. Vast and inexhaustible energy supply.

Jan 04, 2017 | Green Living

1 Answer

### Are halogen bulbs a good form of light source to use for lighting a reptile's habitat?

As for the positives, halogen bulbs last a long time, are very energy efficient and produce a lot of visible light. On the downside, this type of bulb does not emit UVB light. The link below will lead you to a good quality halogen bulb, where you can find more information.

Sep 04, 2012 | Aqueon Reptile

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### What is the main source of energy for cats, carbs or protein?

Unlikehumans, who in most cases use carbs as the main source of energy, cats use proteinas their main source of energy. Moreover, cats need much less carbs than dogsbecause they have a difficult time converting carbs into energy.

Jul 25, 2012 | Cats

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### What is the term used to describe renewable ecologically safe sources of energy

Alternative energy generally a form or forms of energy that are not based on fossil fuels but are either renewable or sustainable without depleting a finite resource. Examples of alternative energy are Biofuel; Geothermal Energy; Solar Energy; Tidal Energy; and Wind Energy.

Oct 25, 2010 | Computers & Internet

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### Whats the difference between Backlight inverter and LCD??http://www.fixya.com/PostQuestion.aspx?dm=1&ref=thask

Liquid Crystal Display commonly known as LCD is an
electronically modulated optical device made up of any number of pixels filled with crystal.. The one you called the screen.. facing you when you are in front of the lcd monitor
It needs light source for this to have display... the light source whose responsible for the image to be displayed is the backlight inverter.. Its in the form of a cold cathode lights...frequently located at the upper and lower back edge of the LCD screen..

Hope i clear things out for you...

Much appreciated if you rate this help..thanks..

LCDs therefore need a light source and are classified as "passive" displays
LCDs are more energy efficient, and offer safer disposal, than CRTs. Its low electrical power consumption enables it to be used in battery-powered electronic equipment. It is an electronically-modulated optical device made up of any number of pixels filled with liquid crystals and arrayed in front of a light source (backlight) or reflector to produce images in color or monochrome. The earliest discovery leading to the development of LCD technology, the discovery of liquid crystals, dates from 1888.[1] By 2008, worldwide sales of televisions with LCD screens had surpassed the sale of CRT units.

May 23, 2010 | IBM ThinkPad T20 2647 Notebook

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