Thursday, May 10, 2012

Air Compressor Buying Tips


How important is air to human life? Since you started being aware of the things around you, you probably have considered the importance of air in one’s life and with the day-to-day activities that confront every person. Air does not only benefit all living beings. The use of a compressed air is widely used in several other areas, most particularly in the business arena. Compressed air is basically used as an essential part of a multitude of manufacturing, industrial, commercial, and automotive applications. The operation of an air compressor concerns a large percentage of the total expense cost of a plant’s utility budget.

1. How They Work

Air compressors work out by two different methods. The first is the air compressor that runs by electricity. The other one is the air compressor that runs by means of natural gas. Obviously, it is the air compressor that feeds on natural gas that is more cost effective among the two. An industrial plant will be able to save more and cut down the cost consumption when an air compressor by natural gas is employed. However, if the place for the working operation is located in an enclosed area, then it is health-wise to make use of an air compressor run by electricity in order to get rid of the gas fumes that may be a threat to the health’s safety of all the workers.

2. Suitable For Heavy Workload

If a business plant operates at a high level and needs an air compressor that will serve its purpose for heavy duties, then a two-stage air compressor is advisable. In more ways than one, this heavy-duty air compressor provides a higher level of efficiency compared to that of the smaller, single-stage air compressors. Also, this heavy-duty air compressor is also able to store large amounts of air needed for future use.

3. Types Available

If you are to buy an air compressor, it is best to think of its capacity to store compressed air. It is essential to consider the power delivered by the types of air compressors available in the market. A two-stage air compressor is more energy efficient compared to that of the single-stage compressor. Why? It is so because of the fact that the two-stage air compressor produces more air per unit of horsepower. Likewise, less heat is generated. Thus, paving the way for a longer life service. Take note that electric air compressors can also be utilized for light-duty applications. There are portable electric compressors that are handy to be carried from one location to another as you wish.

4. Excellent Results

Then, an air compressor buyer needs to bear in mind the efficiency rating of his prospect air compressor equipment. Surely enough, you would want every purchase to be not only valuable but capable as well. What will you do to an equipment that will not survive the tough challenge you require of it after every single cent that you have spent for it?

5. Considerations

In considering an air compressor for purchase, the ratings set by the mechanical engineers association can be the bases for the testimonies of the quality and protective features comprised into the equipment. Next, be sure that the air compressor that you are planning to buy includes a safety relieve valve for the escape of air if the tank’s pressure exceeds the maximum, a belt guard for protection purposes, and an enclosed air intake filtration system.

6. Attachments

The air compressors need to be secured with the attachments that are to be used for its connection to the air tube. The common tool attachments employed into the air compressor are the blowgun, a nail gun, air stapler, air sander, spray gun, or air ratchet wrench. It is the blowgun which is used for the compressed air to blow away the dirt and dust. The nail gun takes charge of the nail’s application even without the hammer. These tools are widely available in hardware stores for purchase.

When buying either a brand new or a second-hand air compressor, these things are to be carefully noted. It is for your own benefit both as the buyer and the user. Another tip to take note of is the frequency that an air compressor is to be used. If the air compressor’s use is called for in just a few times, then it is wise to just rent it. The tools as attachments can also be rented. If, however, the use of the air compressor is permanently required, then it will be better to buy one.


A Flashback from Way Back


Relax. You're not having a flashback. Retro video game systems have made a massive resurgence in recent years, likely due to the fact that some kids never grow up. There seems to be a real affection among the techno-geeks out there for the original gaming systems. A cursory search of the internet will yield hundreds of results for websites dedicated to retro gaming. These systems were all the rage back in the day, and it appears that their time has come again.

Back when I was a young boy, these gaming systems were like a gift from the heavens. The only way I was able to play video games was to go downtown to the arcade. This posed a significant problem, as my parents were not too keen on the idea of letting me go downtown by myself. Furthermore, the local arcade tended to attract some shady characters. I skipped school one afternoon and went down to play Ms. Pac-Man, but I got caught by a truant officer. After that incident, my parents were only too eager to buy me the new Atari.

Man, I loved that system. The Atari 2600 had all the best games. Asteroids was, by far, my favorite game. Dude, I could play that game forever. Or so it seemed. What about Pitfall? I loved that game, too. Then, Kung-Fu Master came out! I don't think I left my bedroom for a month. At the time, I swore I wouldn't sleep until I rescued the fair Princess Victoria. Damn those knife throwers! To this day, my parents still blame that game for the decline in my grades that semester.

By the time the home video game market bottomed out in 1984, I had amassed a rather large collection of games. I sort of lost interest in video games around that time. I ended up giving my Atari and all of the games to my kid brother. I didn't play it much anymore, and I was too busy trying to get a girlfriend. In retrospect, I wish I had kept that system. I would love to spend an evening playing Space Invaders! Maybe I'll see if that arcade is still open. I wonder if girls ever go there……


AC Adaptors


When you are flying to another country or continent, you might require an ac adapter if you bring electrical items. If you do not have one, the electrical items you may bring will be useless. Why you might ask? Well because every country doesn’t have the same electrical outlet. It would be a good idea to know what kind of plug a country uses before going there to visit.

In North, South America, Japan and some of the Caribbean use an ungrounded plug that has two flat prongs or a grounded plug that has an additional third prong. Most of Europe, the Middle East, Asia, Africa and other parts of the Caribbean use a plug with rounded prongs. In order to use a device from another country in an electric outlet you will need an ac adapter.

There are many kinds of power adapters that you might need. Most electrical adapters come in a both grounded and ungrounded versions but some countries only use three pronged plugs so the only travel adapter listed will be a grounded adapter. Australia, New Zealand, Fiji and China use a slanted two prong adapter. Great Britain, Ireland, Africa, Hong Kong and Singapore use a three prong plug, with two flat prongs in line and one perpendicular. Some places in Asia, the Middle East, Africa, Central America and the Caribbean use a grounded adapter. Italy uses electrical outlet with 3 rounded in-line prongs.

So you can always find out what kind of plugs is used when you’re traveling to another country. Or an easier way could be to have an ac adapter when your traveling it will save you much grief and money. If you’ve invested in an ac adapter you wouldn’t have to keep buying new electrical products when you travel to another country.


Battery Chargers


Many new portable appliances and electronic devices use rechargeable batteries. Cars, boats, and motorcycles are also equipped with rechargeable batteries. How do battery chargers differ for each type of battery? What are the different options for recharging batteries?

Auto and marine and truck batteries are 12 volt batteries. Chargers for 12 volt batteries are much more advanced than traditional versions. Battery chargers such as the Battery Minder charge batteries without overcharging which can ruin a battery. Another very useful tool for auto and marine batteries are jump starters. Many newer models are portable and can jump start up to 30 cars without having to be recharged. A great model is the PowerTank jump start equipped with a florescent light and battery tester. Solar battery chargers are available for a wide range of devices. ICP Solar chargers are great for people on the go.

Cell phones, PDAs, and other small electronic devices use different chargers than auto or marine batteries. Typical small appliance battery chargers are wall or desk mountable. They can charge batteries much quicker than conventional battery chargers. Some even pop out the battery when it is fully charged to avoid the “memory effect” that is common with NICD batteries. ICP Solar chargers are also available for small portable appliances. When charging a cell phone battery, chargers vary greatly by brand and are only compatible with the cell phone manufacturer.

Many types of batteries are rechargeable. However, choosing a battery charger varies for each type of battery. Factors include voltage, type of battery, for example, lithium, NICD or lead acid, all require a different type of battery charger because they use different technologies. How a battery is charged can greatly affect the life of a battery, so it is important to follow procedure for each type of battery for proper charging.


10 reasons why you should buy an Ipod nano


A trendsetter and expensive is what the ipod nano is to most people. It makes a statement that I have arrived and I appreciate technology to the fullest. To some it is just another music player to others it is the best.

Here are a few reasons why you may want one:

1. It is pencil thin and can fit into your wallet along with other paraphernalia.

2. Imagine a space of 2GB or 4 GB—this means you can store from 500-1000 songs. Pure listening pleasure.

3. The click wheel and color display take music towards new horizons---plays 14 hours of music.

4. Carries photos, pod casts, and audio books. You can navigate through many photographs using the click wheel. Photos can be transferred and synced with a folder using the itunes softwear.

5. The ipod can be accessorized using the dock connector and head phone jack. So music follows you around at home, in the car, and even while walking or running. Where ever you go the ipod will follow.

6. Its feather weight and so easy to lug around. The screen does not crack or break easily contrary to fears. However the ipod is not scratch or stain proof.

7. Synchronized with iTunes and the iTunes Music Store, the ipod can access the world’s largest selection of music.

8. The pod has a state of the art processor, system performance, and flash memory. The technology is such that it never skips.

9. The system requirements are everyday, either a MAC OS x 10.3.4 with aUSB port or Windows 2000 SP4 or windows XP.

10. Music is your whole life and pure unadulterated sound is something to die for.


Expensive, the ipod retails at US$199 for 2GB and US$249 for 4 GB. But it sets the trend and gives a vison of what music heaven can be.


Wednesday, May 9, 2012

Battery – Make Electronic Objects Mobile


A battery is a device that stores chemical energy and is available in an electric form. The batteries contain a series of electrochemical devices that contains one or more fuel cells, galvanic cells and flow cells. This electric battery is an interconnected array of one or more than one voltaic cells that are used in the cars, in torches, laptops, digital watches and almost every electronic goods that we use in our daily life.

Series of battery cells

The cells in the battery are connected either in parallel, in series or in both combinations. While the parallel combination of cells has the same voltage power as a single cell, it can supply a higher current than a single cell can. The parallel arrangements, however, suffer from a recurrent problem. If one cell discharges faster than its neighbor cell, then current will flow from the full cell to the empty cell, thereby wasting a lot of power and causing excess of overheating. Another marked disadvantage is if one of the cells gets short-circuited due to an internal fault, then its neighbor will be forced to discharge its maximum current into the faulty cell, thereby leading to sudden explosion.

The capacity of a battery to store charge is often expressed in ampere hours [1 A.h = 3600 coulombs]. If the battery can provide one ampere [1A] of current for completely one hour then it is said to have a real-world capacity of 1 A.h.

Types of batteries

There are some common battery types that are used in everyday life. The different types include rechargeable and disposable batteries, homemade cells, and traction batteries and flow batteries.

Disposable batteries

Also called primary cells are intended to use only once until the chemical changed that induce electrical current supply are complete and the battery is then discarded. They are commonly used in smaller and portable objects with low current drain. They are usually contained in light drain and heavy drain appliances, digital cameras, watches, computer clocks, and hearing aids.

Rechargeable batteries

These are secondary cells that can be recharged after they have been drained. This is done by conveniently applying externally supplied electrical current that reverses the chemical reactions that usually occur in use. It is used in appliances like alarm systems, vehicles, vacuum tube radio sets, absorbed glass mats etc.

Traction batteries

These batteries are designed to provide power to move vehicles like electric cars and tow motors. A peculiar characteristic of traction batteries is the electrolytes in the batteries are gelled.

Flow batteries

They are a special class of battery that stores additional quantities of electrolyte outside the main power cell of the battery and are circulated throughout by pumps or through movement. They have a high capacity and are specially used in the marine appliances.

So whether it’s your car, PC, laptop cell phone or MP3 player, the batteries are almost everywhere to make you electrically mobile.


An Introduction To Plasma TV Technology


Plasma TVs have become increasingly available, and their cost is lowering all the time. We have all heard about plasma TVs, and advertising campaigns are constantly telling us that they are the status symbol to have. Adverts are extremely effective at glorifying the benefits of having a plasma TV, so much so that it appears that even our pulling power and popularity will be improved. The one thing that these adverts don’t really tell us is what a plasma TV actually is. Here is a brief guide to plasma TVs to help you appreciate this apparent miracle of modern technology.

Plasma TVs have a higher resolution than other conventional display devices which means that they can display the high definition signals of HDTV and DTV. Also, plasma TVs are compatible with the computer signals SVGA, VGA, and XGA.

Unlike other display devices, plasma TVs have a transistor electrode for every pixel cell which means that there are none of the scan lines that are visible with regular TV sets. The whole image is evenly lit across the display by these electrodes, and not produced by an electron beam which is the cause of scan lines.

Top-of-the-range plasma TVs have display capabilities of over 16 million colours. This ensures that the picture has far more realistic colour than that shown on a conventional TV screen. This is because they are able to show far more shades of colours compared to the lesser quality TV screens.

Plasma TV screens are completely flat which has two benefits. There is no edge distortion, unlike on more curved conventional TV screens, and also there is a far wider viewing angle. The viewing angle of a plasma TV is 160 degrees, and allows the image to be seen properly from more areas of the room where the TV set is situated. This makes plasma TV screens ideal for large groups to view, and lessens the need for more than one TV set to be placed.

Of course, the main benefit that most people are aware of with plasma TVs is their space-saving quality. They are extremely shallow, and can therefore be installed in many more locations than a conventional TV set. The depth of a 50 inch screen is approximately 4 inches, and it can therefore be hung on a wall.


 

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