Test that attempts to find inborn intellectual ability, and not developed ability.

It is nowadays widely thought that a child's ability in an intelligence test can be affected by his or her environment, cultural and social background, as well as teaching. 

There is widespread  doubts about the reliability of i.q. tests, however they are still often used as a diagnostic tool when children display learning  difficulties.

The French psychologist Alfred Binet (1857–1911) devised the first intelligence test in 1905.

The IQ (from  the German Intelligenz-Quotient), was coined by the German psychologist William Stern in 1912 as a proposed method of scoring early modern children's  intelligence tests.

It is calculated according to the formula: IQ = MA/CA x 100 in which MA is ‘mental age’ (the age at which an average  child is able to perform given tasks) and CA is ‘chronological age’, hence an average person has an IQ of 100 ± 10.

Although the term "IQ" is still in common use,  the scoring of modern IQ tests such as the Wechsler Adult Intelligence Scale is now based on a projection of the subject's measured rank on the Gaussian bell  curve with a center value (average IQ) of 100, and a standard deviation of 15, although different tests may have different standard deviations.

Intelligence tests were first used on a  large scale in the USA in 1917 during World War I for two million drafted men, and their subsequent widespread use for education and employment decisions has  provoked protests from minority groups who contend the tests are culturally biased and discriminatory.

IQ scores have been shown to be associated with such factors as morbidity and mortality, parental social status, and to a significant degree, parental  IQ. While its inheritance has been looked into for nearly a century, controversy remains as to how much is inheritable, and the mechanisms of inheritance  are still a subject to some argument.

IQ scores are used in many contexts: as predictors of educational achievement or special needs, by social scientists who study the distribution of IQ scores  in populations and the relationships between IQ score and other variables, and as predictors of job performance and income.

The mean IQ scores for many populations have been rising at an average rate of three points per decade since the early 20th century with most of the  gain in the lower half of the IQ range: a phenomenon called the Flynn effect. It is disputed whether these changes in scores reflect real changes in  intellectual abilities, or merely problems with past or present testing methods.

For body sculpting and attractive good looks, it seems that 6 pack abs are all the rage.

It's not the musclemen with Mr. Universe physiques that attract the attention now, it's athletic-looking young men with all six of their abdominal muscles well-defined. For gals it's having a flat and shapely stomach area to set off the rest of their bodies.

Those are the ones getting the attention at the beach and elsewhere these days.

Did you ever see someone with flat-stomach, 6 pack abs attributes and dream about looking that way yourself? Ever think about if it might be possible? About what would be involved? How much work? How much dieting? Just exactly what might be involved?

Ever wonder about how to get 6 pack abs?

It's not so difficult for almost anyone. Starting from a point of being at a reasonable weight (not obese) and following a good program it can be done in 12 weeks or less. All you need is a good guide and determination to follow through.

What you will need is a professional trainer, a guide to lay out the steps for you and show you how someone with your physique and body type can get there quickly. Most of the info out on the Net for free is wrong or designed for someone else's body type. Don't waste your time with bad info. Get a plan from a Professional.

Don't take bad advice and waste your time learning how to get a six pack. If you start with a good, tested and proven training plan, you will succeed!

Just click on any link in this blog posting to get the info you need to get YOUR six pack!

Author - William Parker

 

Nowadays there are several transportation options open to us when it relates shipping cargo and other goods internationally. Among those choices international air freight is the speediest and can be most convenient method. Worldwide air freight has really arrived and has established an entirely new meaning to the word ‘courier’.

Numerous international air freight companies have established agencies and many more are linking up to cater to the international air freight demands of millions globally. International air freight today is recognized as the quickest and most dependable method of cargo transportation and related logistics assistance.

Several of the major international freight companies provide a comprehensive array of shipping services including door-to-door supply chain solutions, operating thousands of flights regularly and feature extensive network coverage. If you have high value commodity or delicate cargo to be shipped under particular conditions, numerous international air freight companies also supply customized and unique services that will guarantee that your shipment arrives safely in the right hands within the time intended and you're given the essential proof of prompted delivery. You'll as well be able to track your cargo online through internet site supervised by these international air freight companies.

A few of the esteemed international freight forwarding companies hold great importance to safety and security and at no time will your shipment be left unsupervised. International air freight suppliers nowadays are able to ship any commodity that you need to transport internationally from antiques to animals, as long as their line of work is regarded and employ their international freight shipping services within defined parameters of global transportation.

Introduction

Central to the mythology of mirrors is Narcissus a Boeotian hero, who disliked those who loved him for his own natural beauty. He famously gazed into a pool of water and was so fascinated with the reflection, that he was unable to bring himself to leave the image. Not realising that the image he could see was of his own natural beauty, he couldn't bring himself to leave the image, and he perished.

The concept of how the mirror works is quite simple. It stems simply from the reflective surface of still water and therefore nature plays its part. When you look down into a puddle or a dark pool of water, the smooth water reflects the light straight back into your eyes. Mirrors work in a similar way, in that a mirror is made up of a coated glass surface which when a polished metal surface or metal film is applied behind the glass, light cannot shine through and so reflects the image back. Young children particularly, are always fascinated when they look into a mirror for the first time and see their own reflection staring back at them. Anyone who has young children will remember the vision of their young child daughter kissing their image on a mirror. My eight year old daughter loves sitting in front of her mirror applying her make up nearly as much as my fifteen year old daughter!

Where would we be today without mirrors? Mirrors are generally used for personal grooming or interior decoration and have evolved from a luxury item into a necessity. There is an enormous variety of mirror shapes and sizes and over the years, mirrors have gradually developed to meet many different requirements. Today there is a large selection of mirrors to suit every requirement, ranging from small mirrors to large mirrors, framed, unframed and includes bathroom mirrors, decorative mirrors, illuminated mirrors, LED mirrors, shaving mirrors, make up mirrors and demister mirrors.
Away from personal use, mirrors are also used in industryas part of scientific apparatus such as cameras, lasers, telescopes and periscopes, to reflect light and used as tools in dentistry and medical care.

History of Mirrors

The history of mirrors as far as we can see dates back over 8,000 years. The earliest known mirrors were made from pieces of polished stone such as obsidian, a naturally occurring glass from cooled volcanic lava flows. In Anatolia in Turkey, examples of obsidian mirrors dated at around 6000 BC have been found. In south and central America, polished stone mirrors from around 2000 BC on wards have also been found. From around 3000 BC mirrors of polished copper are known to have been crafted in ancient Egypt.

The first metal coated glass mirrors are thought to have been made in the first century AD, in Sidon, known today as Lebanon. The Roman author Pliny makes reference to glass mirrors backed with gold leaf in his Naturalis Historia, one of the largest reference books to have survived from the Roman Empire, which focused on natural and man-made objects and was written in around 77 AD. The Romans also created a technique for making crude mirrors by using molten lead to coat blown glass.

In the 10th Century Arabian Physicists, considered different types of mirrors, reflecting mirrors and parabolic mirrors and another discussed concave and convex mirrors in both cylindrical and spherical geometries. In undertaking various experiments with mirrors, finding the point on a convex mirror at which a ray of light coming from one point is reflected to another point was solved.

During the period of the 14th to 17th Centuries, across Europe a method of coating glass with a tin-mercury amalgam was perfected by manufacturers. Venice was recognised for its glass making expertise and soon became a centre of mirror production using this new technique. Glass mirrors from this period were extremely expensive luxuries. Manufacturers also evolved in London, France and Germany.

The particular process of silvering to produce the first silvered-glass mirror is credited to German chemist Justus von Liebig in 1835. He developed a process to apply a thin layer of metallic silver onto glass through the chemical reduction of silver nitrate. The process was adapted for mass production and led to the greater availability of affordable mirrors and formed the basis of what we now consider the normal way to produce a mirror today.

The evolution of the mirror over the years is quite interesting, if like me you love mirrors! It has developed from a luxury item to an item which is now taken for granted in daily use. Today, walk into any shop to look at mirrors and the selection is vast, with many technology features now finding there way into mirrors, to give added simplicity, luxury and decoration.

The range and selection of backlit mirrors is enormous with unique eye catching designs including illumination, LED lighting and demisters.

How are Mirrors Made?

The manufacture of mirrors includes the application to a suitable material of a reflective coating. Glass is the most common material, due to its ability to take a smooth finish and its rigidity. Glass is also more scratch resistant than many other materials previously used for making mirrors.

Early mirrors were made of solid metal, bronze or silver and they were far too expensive for many. Metal is also prone to corrosion and because of polished metal's low emissivity, antique mirrors were less suitable for indoor use. With indoor lighting at the time supplied by candles or lanterns, the metal mirrors reflected a much darker picturecompared to modern glass mirrors.

In modern times ‘float glass' is used in the manufacture of mirrors, which is a flat ribbon of glass which is run out of a furnace and along the surface of a bath of molten tin. The temperature of both the glass and molten tin is controlled to enable both surfaces to be made perfectly flat. There are now three common types of mirrors: plain - which has a flat surface, and the two spherical types of mirrors: the convex and the concave. The concave and convex mirrors can be used in an entertaining way, when used at fairgrounds or amusement parks to distort peoples figures reflected in them through bloating, stretching and shrinking, the person or object in front of them. I challenge even the most dour faced individual to stand in front of a mirror in a hall of mirrors without laughing at their reflection!

In some applications, a mirror isn't a mirror at all. For example, when used in public conveniences, particularly in public or factory toilets, where for reasons of cost and the need for greater durability, a single polished metal sheet is often installed as a form of mirror.

Different Types of Mirror

Throughout the ages, mirrors have been employed as symbols of truth, deception and vanity. Mention a mirror and you instantly know that if you look into one, you will see your own reflection staring back at you. The image you see will resemble your own appearance. In optical principles, the reflections in mirrors do not totally match the objects in front of them. When looking into the mirror, trace the contour of the reflection of your head in a mirror. The reflection may correspond in proportion, but will generally be half in actual size.
With such a variety and huge range of mirrors now available, much has been made of the amount of money spent in purchasing mirrors especially by women, although in this day and age with an increase in men purchasing cosmetics, some men will also be vain enough to carry a mirror.

The vain Queen in Snow White and the Seven Dwarfs famously asked her special mirror, "Mirror, Mirror on the Wall, who's the fairest of them all?" Mirrors are synonymous with truth.
Mirrors are frequently used in interior decoration to create an illusion of space, and to decorate and amplify the apparent size of a room. They will be used around the home, the office, a pub, club or restaurant to good effect. They work particularly well in night clubs, reflecting the many images of light in the club or room to create a feeling of a much bigger space.

Infinity Mirrors provide an effect of never reaching an end, known as ‘symmetry breaking' and are particularly effective when used in a dark environment. I remember experiencing this phenomenon for the first time as a child in a large department store lift, where mirrors where on all sides of the elevator car. For those who are not good in lifts I should think this effect probably does nothing to calm them, perhaps that's why you don't see lifts like this anymore Or is it just because I'm getting old and that was a particular style popular in the 70's!

My next favourite kind of mirror after the infinity mirror is the heated mirror, these mirrors have a heating element or what is called a demister pad mounted on the back. The reason a mirror steams up when you have a shower is because the surface temperature of the mirror is colder than the air temperature and causes the water vapour in the air to condense on the mirror. Some bright spark realised long ago that it if you heated the mirror this would avoid it steaming up, brilliant!

For many years heated mirrors have only featured in very expensive bathrooms usually costing thousands, and quality hotels have used heated mirrors as a neat differentiator from the increasingly popular budget hotels and motels. Of course it is not until you step out of the hotel shower and see yourself in the mirror that you realise it is there! Whilst at the back of your mind you realise this is one of the reasons why this room is more expensive than the other hotel across the street.

Last week I heard the BBC Radio 2 DJ Ken Bruce state that the best shave you ever had will have been in a hotel, to which he attributed the benefit of the heated bathroom mirror as the main reason. I have to agree, and every time I stay in (nice) hotel I always have a really good look at the bathroom with a view to reproducing the best of its features in my own home.

If you already have a nice bathroom mirror but it is not heated, and wish you had bought one of the demister mirrors instead it's possible to order just the demister pad component and upgrade your current mirror. Upgrading your mirror, who would have thought that was something we would be writing about 20 years ago!

In 1980, ska group The Beat had a UK top ten hit with ‘Mirror in the Bathroom' and the bathroom is probably the location where we tend to study ourselves the most in mirrors. Many will say that it is not wise to look at yourself in the mirror first thing in the morning, but the bathroom is often the first port of call in the morning. Many bathrooms feature a main bathroom mirror positioned on a wall and a bathroom cabinet with mirror doors. Other than the "oh my god" do I really look like that expression, the uses of a mirror or mirrors in a bathroom will generally be to aid the application of make up, hair styling or shaving. One of the major problems with bathroom mirrors is that after showering or bathing, the mirror is steamed up.

A recent addition in the manufacture of heated mirrors is the inclusion of a demister pad which clears the mirror for use in just seconds. Just think never having to again wait for the steam of the bathroom to disappear from the mirror, or having to open the window, before using the mirror to shave or apply make up. The bathroom mirror demister or steam free bathroom mirror is a great invention. Some manufacturers refer to these products as fog free bathroom mirrors and there is now a huge range available, again some with back lights, LED lighting and built in shaver sockets.

Demister mirrors and steam free bathroom mirrors are not the only recent developments on mirrors. As suggested above another reasonably new product is the illuminated bathroom mirror. Illuminated mirrors maintain the features of a simple mirror, but will enhance any environment in which they are used with the addition of lighting. As with all mirrors, the range of illuminated mirrors is extensive, with a variety of sizes and shapes available. An Illuminated mirror with shaver point can also be purchased.

Mirrors with backlit LED lights will enhance any bathroom or environment in which they are installed. Being of low energy consumption LED, or light emitting diode, are more environmentally friendly than traditional bulbs. They are designed to withstand the wetness of the bathroom environment. So water vapour mist will not cause a problem. As a real luxury mirror, illuminated bathroom mirrors and bathroom mirrors with LED lighting can also include a demister pad, to demist the mirror in just a few seconds and an on/off sensor to activate the lights as soon as motion is detected in front of the mirror. Now bathroom cabinets are also available with inbuilt back lights, and LED lighting for that special something different in your bathroom.
As a bathroom accessory the mirror should come high on the list, in fact can you really have a finished bathroom without a mirror? The enormous selection of styles, types, shapes and sizes means that there must be a mirror to match anyone's budget. Although some of the latest technological versions such as illuminated, backlit and LED mirrors could be considered to be luxury items, some are not as expensive as you may have thought.

We have two bathrooms, both with a new bathroom light mirror and since we bought them I manage a much better shave because I can see what I'm doing more easily, especially if I've just got out of bed!

Mirrors, Superstition and Auspicious Energy Flow

I have always loved mirrors, probably why I have ended up in the mirrors business! When I was at school I did a project on them, this was before the internet was invented mind so I trawled through piles and piles of reference books in both the school and local library for months. These days of course it would only take an hour on Google, kids these days don't know how easy they've got it!

Once you get immersed in mirrors as I did all those years ago, or ‘mirros' as I frequently misspelled it, and start researching them, you find that they play a major part in all aspects of life. Mirrors also feature in superstitions. One of the most commonly known superstitions is that someone who breaks a mirror will receive seven years bad luck. A popular belief for this superstition is that mirrors are a reflection of the soul and if a mirror is broken, then part of the soul is broken. Added to this, some believe that the soul regenerates every seven years in an unbroken condition, hence the seven years of bad luck. I bet you've always wondered what that was about so I'm glad to share that with you! Mirrors were often used in traditional witchcraft too as tools for performing spells from the belief that mirrors are said to be a reflection of the soul.

It is also said that the mirror does not lie. A mirror can show only the truth. It is a very bad omen indeed to see something in a mirror which should not be there! Some cultures also have a custom that a newborn child should not look into a mirror until its first birthday because its soul is still forming.

In the southern United States, it used to be customary to cover the mirrors in a house where the wake of a deceased person was being held. If a mirror was left uncovered or exposed, people believed that the deceased person's soul would become trapped in any uncovered mirror.

In the ancient art of Feng Shui mirror placement is considered very important. There is a lot of information available about this, and it is a subject that can't be covered in a mere paragraph or two here. But Chi energy flow can be influenced by mirrors so where the energy needs to be diverted, mirrors can be used for this to great effect. Personally I don't really conform to these rules, although my mum has mirrors strategically placed all over her house to redirect negative energy! One of the principles I do follow though is to make sure I don't have any mirrors pointing at my bed, or the kids beds, as this is said to reflect your dreams back onto you whilst you are sleeping!

Conclusion

A mirror is defined as a coated glass surface for reflecting images. There is a huge range of mirrors for scientific use, and available in many shapes and sizes. The most commonly seen uses of mirrors are for personal grooming and interior decoration. As a race we are thoroughly addicted to mirrors.

Over time, mirrors have evolved from a luxury item to an item of necessity and many particularly women will always carry a mirror in their hand bags. However, today with technological advancements, some mirrors will be seen as a luxury, particularly those which include illumination, LED or demisting devices. As individuals we spend many hours of our life in a bathroom, so why not treat yourself to one of life's little luxuries and indulge in a stylish bathroom mirror? After all, let's be honest, who can really live without mirrors?

Here in Helena, Montana, we have created an full community that abides in the conservatively created tumbleweed home designs. Now these new houses are a giant change from what we as Americans have become accustomed to. Instead of 3 and 4,000 square foot homes, what we have here is closer to 3, or 400 square foot.

Now, I know what your thinking, how in the world do you live in that? Well, the answer is cheap loft beds, vertical showers, microwave ovens, small stoves, small refrigerators, micro, small, and more micro. We have discovered that in these money times, and in comparison to other national standards, these tinier options are a authentic solution. The loft beds, create a giant amount of area.

Some of these designs come with the popular Murphy bed functions, but the Morphy's don't double as livable spaces, in most cases. I couldn't sell these things, unless I had used them myself, so for two years, I lived in the 250sq foot model. Now, granted, I'm a only guy, and I have been a bachelor for the past five years, but it really wasn't that odd at all. I had this really unique kids loft bed, and just about every add on available, and I was good.

My only problem, was the wind. When the winds sped up to about 50, or 60 miles an hour, or better, it was a bit unsettling, but apart from that, I truly enjoyed it! Now when you consider thinking about a family, you can consider the roomier models, and also consider connecting them together, somewhat like Legos.

When Do You Need This Type of Cover?

When is UK breakdown cover for personal use the right cover to choose? It's the right cover to choose if you, for example, drive one vehicle for yourself and another for your business. That way, you know that you're always covered no matter the vehicle you are driving.

Because you are insured and not the vehicle, you're always protected. And even if you're not driving a particular vehicle, you're still insured as long as you are actually IN the vehicle. That means, if you're driving with a co-worker and the vehicle breaks down, you are covered.

Compare Prices to Get the Best Deal

When it comes to UK breakdown cover for personal use, it's a great option for you if you ride or drive in a lot of different vehicles. It's more expensive, true, but even so you can get the best deal possible when you shop around.

Take the time and compare quotes from different companies for similar coverage so that you get the least expensive cover possible with all the options you need.

When you compare quotes from different companies and determine what they offer, you can find the best deal for the best money. Take some time to do your homework and check out the options available. You can get comparison quotes from several companies so that you get the best price possible on UK breakdown cover.

Compare the market and save money, that's always a good choice for anybody who needs insurance of any kind.

Futon covers are both decorative and functional. They are a wonderful way to dress up your futon. The fabric of the cover can also help to protect the futon underneath and make it last longer. When you buy a futon cover there will be a few things to look at. Measuring the mattress of your futon is the first thing you should do.
 
 Look at all the dimensions including the thickness. You can find futons in a variety of thicknesses and you want to buy a cover that will fit your futon. Forgeting this step can have a negative effect since you can end up with a futon cover that is impossible to get on. It is best to get a futon cover that comes with a zipper that make it easy for you to wash them when they need to be cleaned.
 
 Take a look at the colors and patterns have in the room where the futon is located. The futon cover you select should blend in with the rest of the décor of the room. There is a wide selection of futon covers available at reasonable prices so finding one to match your home and your budget should not be difficult.
 
 You can expect to pay between $30 and $150 for a futon cover. Know what your budget is before you start your search to help you narrow down your choices to the ones that fit your budget. Some futon covers are completely covered in the same print. These are great if you plan to flip your futon mattress on occasion.
 
 Other futon covers are solid on one side and printed on the other. All you need to do is turn it over to change the look of your space. Window pane futon covers have a print on the top that will not go completely to the edges. The edges and back will be a solid color.

What are the symptoms of hemorrhoids? Hemorrhoids are piles of swollen veins in the anal and rectum area, which may swell greatly to hang down outside the anus.

Hemorrhoids are amazingly common, generally as a result of prolonged constipation and have a tendency to be prone to happen within families. Hemorrhoids can cause bleeding, itchiness and possibly minor pain from the anus, but rarely, extreme pain. In unusual circumstances they may need to be removed surgically or injected with a sclerosing agent, which makes them shrivel up.

There are two types of Hemorrhoids:

1. Internal hemorrhoids which usually occur inside the rectum below the anus lining.

2. External hemorrhoids are stinging swellings at the sides of the anus. This is a result of a rupture of the anal veins.

Here are some Suggestions for treating hemorrhoids:

1. Alter your diet

The most important thing you should do to treat hemorrhoids is to change your diet. The first thing you must do is to make sure that everyday you must drink at least 6 glasses of water and also increase your fiber intake. Because fiber and water helps you ease up the defecation process, by including fiber with your daily meals, you not only treat the hemorrhoidstreat the hemorrhoids by lowering the amount of pressure you put on them, but also prevent their development.

2. Take the time to exercise regularly

If the veins by your anus are fragile, it is easier to get hemorrhoids. By exercising regularly, you can increase the strength of your veins.

3. Take a sitz bath

By taking a 10 to 20 minute sitz bath, 2 to 4 times daily, this will bring heat to the area and provide a reprieve from the pain and encourage healing.

4. Clean the anal area at least daily

You must wash your anal at least daily while in the tub with a mild soap. You can also use the mild soap and gently apply it after a bowel movement to keep the area clean. You should refrain from vigorous rubbing of the area.

5. Talcum powder

Talcum powder is typically used to absorb moisture. So, you can use this when you have finished going to the bathroom to maintain a dry area around the anus and promote healing of the area.

These are simply a few of the basic methods you can use to treat hemorrhoids, but for a more complete method for eliminating hemorrhoids once and for all, visit: Treating Hemorrhoids Remedies to learn what I did.

Medical Disclaimer: I am not medically qualified to diagnose or treat people. The intention of this article is to provide quality health and nutritional information for the readers but not to replace the advice of you physician.

When toothpaste no longer gives you that bright and shiny smile, teeth whitening is a viable alternative. Perfect white teeth are frequently advertised by various teeth whitening products.

It's no wonder many people are looking for ways to whiten their teeth, what with all the television advertising for these products.

The obvious candidates for teeth whitening are people whose teeth have discolored because of age, possibly due to smoking or other factors.

When teeth whitening was proven to be effective, more and more people were enticed to try it. There are now various ways for people to have their teeth whitened.

Teeth whitening systems are methods you can do yourself at home. These are made up of a whitening gel that is placed in a mouthpiece for a specific number of times. Before buying a teeth whitening system, it is a good idea to read the labels first to make certain that they are approved by the American Dental Association. It is very important that you only do as instructed and don't overdo it.

Professional teeth whitening is the most effective method for teeth whitening. Before being treated for teeth whitening, your dental professional will make sure you have healthy teeth and decide which whitening method is best for you. Any issues such as cavities or gum issues need to be dealth with first. A good teeth cleaning should also be done by your dental hygenist. Your dentist will let you know what to expect from the procedure.

Teeth whitening does not last forever. The process will need to be repeated from time to time to maintain your whitened teeth.

Before You Hire or Buy Portable Air Conditioning, it will help if you understand how to find the perfect match for your needs.

There are 4 principle types of Portable Air Conditioners available, each environment requiring Portable Air Conditioning is different and therefore careful consideration needs to be made prior to choosing the best Air Conditioning Solution.

The basic choice can be made from one of the following:

1. Evaporative coolers (swamp coolers)
2. Portable Exhaust tube Air Conditioning
3. Portable Split type Air Conditioning units (refrigerant)
4. Portable Split type Air Conditioning units (water cooled)

What should I consider before choosing a portable air conditioner?

The most important factor to consider the amount of cooling duty that is required for the area to be properly cooled. The amount of cooling duty required (measured in BTU or kW) will be impacted by several issues. i.e. size of area, number of people populating the area, numbers of items that generate heat e.g. PC, photocopiers, fax machines etc. Also the number of windows and the direction of the sun, i.e. buildings with south facing windows will require more cooling duty. Calculating the correct level of Air Conditioning duty required is important the correct decision can save hire costs and deliver the perfect cooling solution.

Different factors can reduce the effectiveness of portable air conditioners. Here are a few solutions that might increase or decrease BTU's if you suspect the effectiveness of your portable air conditioner is going to be altered by an outside factor:

Portable Air Conditioners

The type of Portable Air Conditioner you choose may depend greatly on where you intend to exhaust it. Exhaust tube Air Conditioners remove the heat produced by the refrigeration circuit via exhaust tubes. Ideally the exhaust tube is Directed out of an adjacent window, however in some circumstances the heat can be removed via a suitable ceiling void or into other unused space. Each model and size of Exhaust Tube Air Conditioner is capable of different performance.

Evaporative coolers

Evaporative coolers (also called swamp, desert, or air coolers) are devices that cool air through the simple evaporation of water. They differ from refrigeration or absorption air conditioning, which use the vapor-compression or absorption refrigeration cycles. In the United States, small-scale evaporative coolers are called swamp coolers by some users due to the humid air conditions produced. The name sump cooler is also used. Air washers and wet cooling towers utilize the same principles as evaporative coolers, but are optimized for purposes other than air cooling.

Evaporative cooling is especially well suited for climates where the air is hot and humidity is low. For example, in the United States, the western/mountain states are good locations, with swamp coolers very prevalent in cities like Denver, Salt Lake City, Albuquerque, El Paso and Phoenix, where sufficient water is available. Evaporative air conditioning is also popular and well suited to the southern (temperate) part of Australia. In dry climates, the installation and operating cost of an evaporative cooler can be much lower than refrigerate air conditioning, often by 80% or so. But evaporative cooling and vapor-compression air conditioning are sometimes used in combination to yield optimal performance. Some evaporative coolers may also serve as humidifiers in the heating season.