Posts Tagged ‘science’
How Serious Is Your Acid Reflux Disease Symptom?
Anybody at any age can get acid reflux disease symptoms. There are some people, however, that won’t be able to notice these symptoms until these become very severe. If you think you have the condition, take note that symptoms vary from mild to severe. When your body experiences an acid reflux disease symptom, you may not be aware of it until you take some tests. Let’s talk about the varying degrees of symptoms and diagnosis of acid reflux disease.
Common Symptoms
Heartburn is one of the most common symptom of acid reflux. Heartburn is characterized by a burning sensation in the middle area of the chest behind the breastbone. Sufferers may experience some pain or discomfort as the sensation travels from the upper abdomen to the neck. This experience often worsens after eating or when lying down/bending over. Although heartburn is a common symptom of acid reflux, not all sufferers of this condition have it.
Signs Of Progression
When the condition progresses heartburn may become more persistent and the pain or discomfort associated with heartburn may last up to 2 hours. Bitter acid may travel into the throat while you are sleeping and you may occasionally have a bitter taste in the mouth. You may then wake up with a very hoarse voice and experience persistent dry cough. Furthermore, you may start to wheeze or feel a certain tightness in your throat as though something is stuck inside. In children, symptoms include persistent cough and repeated vomiting.
Complications
Oftentimes you will only realize how serious acid reflux disease has gotten after screening and diagnosis. This is especially true in the case of reflux esophagitis, where the inner lining of the esophagus is severely damaged. Ulcers and scarring may develop, making it hard to swallow food and/or liquids. People who have reflux esophagitis have a somewhat increased risk of cancer of the esophagus.
If acid reflux disease is left untreated, complications can occur overtime. You may develop severe inflammation in the esophagus and stricture (severe narrowing of the esophagus). Problems may even reach the teeth and air passageways of the lungs. In other cases, underlying muscular abnormalities may develop and symptoms may persist even after treatment. Older individuals are more susceptible to these complications, especially if they’ve had acid reflux disease before.
Here are some complications that may occur due to acid reflux disease:
- Dental problems – Chronic throat problems – Stricture – Erosive esophagitis – Barrett’s Esophagus – Respiratory Disorders (Asthma) – Sleep apnea
Symptoms may be chronic or may be temporary. It may last for weeks, months or even years and may come back after treatment. Because the duration of symptoms varies greatly, we can never be too sure if we have a mild or severe case of acid reflux. The only way to be certain is to have a diagnosis. Tests often involve esophagoscopy, barium swallow, cardiac evaluation, esophageal manometry, and esophageal pH monitoring.
If your condition is diagnosed to be severe, it may take more than one of the tests mentioned above. Before symptoms worsen, see your doctor to have a diagnosis even if your symptoms are mild.
The Truth About Termite Identification
Termite identification goes beyond simply identifying the different members of the termite colony. If homeowners are to protect their homes and prevent termite infestation, they must know some basics first.
The Truth About Termites
Most people associate termite’s look with only one class of termite: the worker termites. These are the termites that do all the food foraging and are creamy white in color. The truth though is that termites usually avoid the light and the open air.
Termites burrow deep in your soil and work its way to the wooden parts of your house through mud tunnels. This means that the damage to your property may also be undetected until there is already too much damage. Some homeowners do not know they have termites until damaged wood breaks off to reveal the white workers. The key to early termite identification is to look for tell tale signs of their presence.
Swarmer Termite Identification
Swarmers are the ones entrusted with the task of flying off to build new termite communities. Early termite identification therefore begins by looking for flying winged insects of a dark color, with straight bodies and four equal length wings that they might discard around your property.. These swarmers may fly to or away from your house.
Be especially watchful during the beginning of spring or after some rainfall. Although some may say that some swarmers simply get blown accidentally to your house, they might just establish a colony if the conditions are right.
Termite Identification Through Mud Tunnels
Termite identification can begin with looking for mud tunnels. Since worker termites try to avoid open spaces and day light, they usually move from their underground colony home to your house through mud tunnels. You should therefore be a little worried if you notice some seemingly dried mud that seem to rise up from the soil and stick on cracks or boards. When prodded, these tunnels may come off as grainy particles on your fingers. Some conditions are just so perfect for termites that they may even build mud mounds somewhere in your property.
Termite Identification Through Damage
If you’ve been unlucky enough not to have been able to detect the presence of termites at an early time, you may already have some damaged wood. Some signs of termite damage would be holes on the surface of the wood, paint cracks or wood that sounds hollow. Extensive termite damage may result in wood surface that easily breaks off when you prod it, revealing irregular sized hollow areas inside that may have traces of grainy mud.
Favorable Conditions
Environmental conditions are not necessary for termite identification. Favorable conditions however may tell you that you may attract potential colonists. You may for example have moist soil with wood contact on the ground. Ground termites love moist soil and the proximity of the wood to the soil may make their food harvesting work easier. Pipes that leak on wooden trash around the house and foundation cracks may also encourage termite infestation.
Understanding Why Boomerangs Fly
Boomerangs are curved pieces of wood used as a weapon for leisure. Boomerangs originate from the Aboriginal people in Australia and have entered the mainstream as an outdoor pastime. There is no standard size a boomerang comes in. The size of the boomerang depends on the where it is made and what the purpose of it is.
There are different types of boomerangs for different uses. The most popular type of boomerang is the returning boomerang that once thrown returns to your hand. You have probably seen it many times and it is easily recognizable due to the fact that its curved shape. There are some boomerangs however, that are not made to return. This type of boomerangs was made mostly for hunting and weaponry uses.
Although the boomerangs seems to be a simple wooden object there is a lot of science behind it.There is no magic involved in this process or no tricks. Boomerangs return because of the laws of physics that work in relation to their distinct shape.
Returning boomerangs have slightly different shape than non-returning ones. The ones that return do so because they use the drag to lift and fly sideways by turning. Boomerangs fly because of the high pressure that develops underneath their wing while the top creates a low pressure area.
Keep in mind that in the returning boomerang one wing, the wing arm is a bit different than the handle one. As a result when thrown in the air one pulls the other in an angle. As it continues its flight the lift from the one corner makes the boomerang to at some point turn back and head to its starting position.
Whether a boomerang will return or not also depends on the way it is thrown. This requires some practice because it is important to get the right amount of spin in the throw. Boomerang throwing experts suggest you pull it free from your hand when throwing. This way the boomerang will have the ideal flight path and return in your hand.
Solar Oven Designs – Using The Sun To Heat Your Food
In most 3rd world places, where electricity and other fuel sources are hard to come by, solar oven designs have been used. Not only are they effective in cooking food, but also for water purification in sunny countries like Sudan.
But just because first world countries have enough energy supplies, it does not excuse us from using solar cooking at home and helping to conserve that energy. What’s great about solar cooking is that it uses the power of the sun to cook food – though it may take 4 times longer than a conventional oven.
There have been a variety of unique solar oven designs thought up, but they can be categorized in three shapes: parabolic, panel, and box cookers.
Parabolic Shape:
A parabolic solar cooker, as the name implies, is made from any reflective material in a parabolic (bowl like) shape that focuses sunlight to a single point. It is the most effective at cooking food quickly and efficiently, however, it tends to be more expensive and hard to make by hand. Furthermore, its fixed shape makes it less portable and raises some safety concerns.
Panel Cooker:
Similar to the parabolic design, the panel design focuses sunlight to a single point. However, it is less rounded and made up of a number of small, flat, reflective panels.
Although not as effective as a parabolic cooker, it is safer, easier to make, and can be folded up for portability. Panel cookers come in a number of innovative designs, the simplest being made from a fold-able, reflective windshield shade.
Box Shape:
Very different to the other two designs, the box cooker works by trapping the sun’s heat, instead of simply focusing it on a central point. It is designed in such a way that it let’s light in, but stops that heat from escaping. As more sunlight comes in, the hotter it gets.
This results in the entire area of the box to get hot and be able to cook larger portions of food at a time. This design is by far the simplest to put together – all you need is a black cardboard box with one side covered in tin foil and a sheet of clear perspex or glass on top to hold in the heat.
In fact most of these solar oven designs can be made from household materials in a short space of time. And what you can cook in them is really limited to your imagination – you can bake bread, steam vegetables, make stir-fries and even a roast chicken in them. Another advantage is the amount of power you’ll save – unlike a conventional oven, your cooker needs to be outside to operate, so it put less strain on your kitchen’s air conditioning system.
To think that – according to the Residential Energy Consumption Survey – almost 75% of Americans prepare at least one hot meal at home per day, 33% prepare two or more, a large amount of electricity can be saved if more of us try solar oven design at home.
So get started cooking with solar today. There are a number of commercially available solar cookers on the market. Alternatively you can make your own at home by searching online, where a variety of free solar oven designs with full building instructions are provided.