What is a Plasma TV

What Are Plasma Televisions? by: Richard Gazzo
Televisions previous to the Plasma TV explosion used the (CRT) cathode ray tube to give users the ability to watch television. CRT televisions works by shooting out a beam of negative charged particles called electrons into a large glass tube. These negative electrons
For the past 75 years, the vast majority of televisions have been built around the same technology, the cathode ray tube (CRT). In a CRT television, a gun fires a beam of electrons (negatively-charged particles) inside a large glass tube. The electrons illuminate phosphor atoms inside the tube (screen), this allows the TV picture to be produced by illuminating different areas of the phosphor coating, this is what gives you the CRT television.
Now welcome to the new face of television, Plasma TV. Plasma has taken the home theater market by storm because of their amazing picture quality and very thin design. The idea of plasma display panels began in 1964 at the University of Illinois. The first displays were very primitive using only points of light created in the laboratory. As time went on digital processing, and other technology, made vivid plasma displays a reality.
Plasma televisions use a much different type of technology thatn CRT models, they use something called pixels. Using a video signal the pixels on the flat screen light up with a high-energy beam of electrons that are separated into the 3 primary colors, red, green and blue. From the illuminated fluorescent lights pixels you get the full color spectrum that produces a full range of colors that give you the image on the screen. Each pixel on the screen has three fluorescent lights in it, a green, red and a blue fluorescent light. Each fluorescent light in the pixel can produce 16 million colors, giving you amazing colors and overall picture quality that you can't finder in regular CRT televisions.
Another feature that you can't find in CRT TVs is the widescreen design found on Plasma televisions. The (16:9) aspect ratio is the same dimensions used in movie theaters. This feature gives Plasma flat screen high definition television models a cinematic feel, that is great for watching feature films, concerts, Monday Night Football or anything else you can imagine.
And unlike conventional television models, there are no scan lines on plasma televisions, so the picture is much sharper. The viewing angle is far superior than CRT, there is 170 degree viewing angle so you can basically watch the TV from any area in the room. As I mentioned before Plasma Tvs are very thin, only 3.3 inches in width. This makes them perfect for hanging on your wall, freeing up space in your home. Just like a picture frame, you can now hang your television on your wall!
So who manufacturers these thin TV displays? You can choose from numerous brand names which I'm sure you are familiar with such as, Sony, Sharp, Hitachi and Samsung to name a few. Plasma isn't the only technology available if you are a HDTV buff, you should also check out LCD televisions and rear projection TVs.
And if you want to find a cheap plasma TV, check out the discount deals available through internet, particularly Amazon.com and Ebay.com. Those 2 online merchants are trusted and can offer not only new, but used and refurbished models for even bigger savings.
About The Author
Richard Gazzo is a successful writer with info plasma tv reviews . Find information on Sony plasma TV, Pioneer, Samsung plasma TV models and more. Find reviews on models such as the Pioneer pdp-4350hd, and the Panasonic th-50phd8uk. http://www.hdtv-n-plasma-tv-reviews.com.

Lizard Induction

Lizard Induced Schoolgirl Screams by: Abdul Nusrat
Let me just make one thing clear before I proceed. I am generally an animal loving person. If a dog comes to my house and goes number one on the fence, fine no problem.
Squirrels gather near the gate and perform acts sexual in nature, no big deal.
But if there is one thing you do not do...It’s lunging in the general direction of my head from above with the intention to kill.
This is exactly what a lizard attempted yesterday night. Luckily I managed to dive, in slow-mo of course, out of its path just in time. The beast was not able to get a choking grip on my delicate neck and instead just bumped against my shoulder and dropped down on the floor.
After my display of fast reflexes in the form of a cool matrix style dodge I thought it was all over, that I was safe. I thought the lizard would be too impressed, intimidated with my elite skills and would start to fear me. Boy was I wrong. This monster was no ordinary lizard. It was completely out of its mind. A true fighter!
After a rough landing on my kitchen floor the lizard ran towards me rather than away from me! Maybe this was an egotistical lizard and was not prepared to lose its pride. It ran with such a menacing look in its beady eyes and at such a pace it made me think for a millisecond that I may be dealing with something that is much stronger than me.
The feeling of helplessness and panic ran through me. I started scanning the place looking for a weapon, A chair...a spoon, anything!
But all I found around me was the hot and humid summer air.
At this point I knew deep down all was lost. I did what all sane men do when they are up against a ruthless killer. A killer that does now know the meaning of the words “mercy”, “compassion” and “love”, I ran.
I jumped up over the beast and sprinted towards the exit.
I did not dare look over my shoulders as I knew what was following me, death! I ran at full pace towards my bedroom door. Panting, shaking and screaming whilst I forced my legs to keep moving.
Oh why did I not take up my dads advice and join a gym.
When you are in such a situation as I was, when you are the one being chased by a predator as cheesy as this sounds...time does seem to slow down, your senses become sharper. Now I truly know what “eternity” means because that is exactly how long I seemed to have spent before I saw the warm light of my room, the rays danced on my tired and broken body bringing with it hope, hope of survival.
I dived towards the light, pushing the bedroom door behind me with full force.
*BANG*
Ahhh that sweet sound when wood crashes into wood. I knew I was out of harms way at last.
I did next what all men do when they know they’ve narrowly escaped certain death. I fell down on my knees and thanked god and then I changed my underwear.
About The Author
Abdul Nusrat is a self proclaimed genius who is taking a year out before he goes to university. He spends his free time working on his various websites a list of which you can find here: http://www.arahman.co.uk/list.html.

Allergy Relief For Us Science Geeks!

Now You Can Control Your Allergies by: Juliette Pickup
Allergies of various types make millions of people's lives miserable everyday and the allergies control at least some aspects of the sufferer's lives. This is unnecessary since measures can be taken to keep your allergies under control. There are different types of allergies, determined by what causes the allergy. The most well known allergies are dust mite allergy, mold allergy, hay fever or pollen allergy and pet allergy.
Each of these different types of allergies creates a different reaction within the sufferer and has different sources, but allergy control measures can be applied to all of them. There are a variety of measures that you can put into effect, but they are intended to be back up measures for the allergy control products that it is advised you buy. There is a very large selection of products available currently. These products will help to reduce the allergic reactions of the sufferer by a large margin.
When focusing on the bedroom, there are eight main product types which are manufactured to decrease the effects of allergies. The bedroom should be the first area to be re-equipped since it is in there that the allergy sufferer spends a large portion of their time and it should be a refuge from the effects of allergies as opposed to aggravating the suffering. The different types of products are roughly divided into two groups, bedding products and air products.
In the group of bedding products there are the categories comforters, pillows and mattress pads. Comforters come in a variety of types and a variety of fills including down and a fiber fill. Most people with an allergy problem would automatically avoid down, but it is warmer than a fiber filled comforter, but you need to ensure that the comforter is hypoallergenic. People believe they are allergic to feathers, but they are in fact allergic to the dust and protein that attaches itself to the feather so if the down has been properly cleaned then it is not a problem. Fiber filled comforters are preferred by those in warm climates or during summer.
There are is a wide range of choices for people who would like a hypoallergenic pillow , whether it is foam, natural or synthetic. This choice is dependent on what you require from your pillow and your level of allergy. Mattress pads were the greatest thing ever invented by the bedding industry for an increase in comfort and support. Some of mattresses are created for hygiene, some are created for softness and some mattress pads are for back and joint support, but for allergy sufferers the important factor is whether they are hypoallergenic. The feather beds provided by Pacific coast are created to be an allergy control product. They come in every size to suit you and they are incredibly comfortable.
In the group of air products there are Air Purifiers, Dehumidifiers, Humidifiers, Steam Cleaners and Vacuum cleaners. These products all cater for different needs and different types of allergies. A dehumidifier would be the best option for a person suffering from a mold allergy, but a humidifier would be beneficial to a person with sinus troubles as a result of their allergies.
Dehumidifiers and humidifiers perform opposite functions, but they still perform well as allergy control products. Dehumidifiers lower the humidity level of the area around it in order to inhibit the occurrence of mildew, mold and damp. They are essential for any allergy sufferer who wishes to stop mold spores from growing within their house or in the basement and also wishes to keep the level of humidity low enough to ensure that dust mites are kept at bay.
Humidifiers come in two types, warm mist or cool mist humidifiers. These will both keep the air around them hydrated to a comfortable level to ensure that your allergies are not exacerbated. Warm mist humidifiers are more useful in cooler climates while cool mist humidifiers are better used in a warmer environment. The determining factors are ease of cleaning and noise levels.
Air Purifiers are very important allergy control products. They should be used in with either a humidifier or dehumidifier in order to get the best from them. A good quality HEPA air filtration device is an indispensable element to ensuring that an allergen free and healthy home is maintained. Air filters literally filter out harmful pollen and particles that will cause an allergic reaction in you. In order to ensure that you can select a high quality product we have circumspectly chosen the finest air purifiers to present for you to select from out of the numerous products we have tested.
Steam Cleaners often look like a vacuum cleaner but that is where the similarity ends. The use of a steam cleaner ensures that you can sanitize, deep clean and deodorize in one simple procedure without using any of the chemicals that can be found in supermarket cleaning equipment. For allergy sufferers, there is the built in benefit that the heat of the steam penetrates deep down into any material being cleaned and therefore the dry steam instantaneously kills any and all dust mites, viruses, molds, and fungi that may be there.
A HEPA vacuum cleaner is a highly effective allergy control product that will suck up all the allergens and dust which have become settled onto furniture floors and carpets. These settled allergens are the ones which keep getting stirred up and therefore consequently inhaled by people due to movement within a room.
One allergy control product will help you to lower the allergen level in the area of your bedroom, but it is recommended that you utilize a combination of products in order to bring the allergen level to it's lowest possible point and therefore bring your allergic reactions to an absolute minimum.
About The Author
All allergy control information has been researched and written by Juliette Pickup.
http://www.allergiesplus.com

I was looking for gifts such as art, collectibles, crafts, books, baked gifts and I found them shopping online.

My wife always shops for clothes, shoes, makeup and jewelry online.

My kids said to go online for Christmas toys this year.

Most of the time I shop online for electronics such as audio, tvs, cell phones, wireless digital cameras and pdas.

I found all the furniture and hardware I needed online.

My friend the chef said to look online for kitchen supplies and recipes.

Robots

The Science of Robosapien by: RobonetiX
At a glance, Robosapien looks great versus the old school box on wheels with clear dome head. ‘Ooh,’ you say, looks kinda like a muscled storm trooper and the fart button now that’s a hoot. We nod in polite agreement, but behind your back, we snicker at your total lack of appreciation of the advanced robotic theory involved.
Robosapien is a modern day turning point in the evolution of robotics and is the first-ever robot based on the science of applied biomorphic robotics. (That’s what you should have been telling friends and family all this time rather than pointing out amusing cat-chasing ability.) Biomorphic robotics stems from Mark Tilden’s innovative new concepts in BEAM technology.
A New Philosophy for Robot Kind BEAM is an acronym for Biology, Electronics, Aesthetics and Mechanics. Dr. Mark W. Tilden founded this relatively new branch of robotic sciences in 1989, based on the premise that behavioral-rich robots need not be the wickedly complex projects reserved only for well-funded labs and cartoon villains.
Put another way, traditional approaches to creating robots have started with creating a sophisticated brain to maneuver the mechanics of the body. Though not discounting the incredible engineering feats of robots built this way, most notably the Sony Qrio and Honda Asimo, Mark Tilden strongly contends that this is the wrong approach to take.
It’s like trying to emulate a human when modern technology and research can’t realistically copy a bug from your garden. “[It’s] an evolutionary dead end,” says Tilden. BEAM robotics is about taking the bottom-up approach, to start from mastering the simple bug and moving up from there.
Rather than attempt to create a centralized robo-brain to process every variable input and spit out a decision (much, much harder than you may think), why not use a system known as "subsumption architecture.’’ Subsumption architecture is a clever technique where the actions of a robot are managed in layers, each layer controlling one facet of the robot’s operation.
For example, a low-level layer could be ‘Walk Forward,’ which the robot will happily do until it bumps into something. At this point, the slightly higher level ‘Lift Leg Higher’ kicks in, overriding the ‘Walk Forward’ layer until the robot successfully climbs over the obstacle, at which point ‘Lift Leg Higher’ stops, and the low-level ‘Walk Forward’ takes over again. *
Egocentric Bugs
So Tilden began building robot bugs on this principle, and more selfish creatures they could not have been.
Why’s that? Well Tilden decided that Asimov’s famous Three Laws of Robotics:
1. No hurt human.
2. Listen to human unless told ‘Do hurt human’.
3. Try to live with that.
were antiquated notions that left no room for a good practical joke at parties.
So one dark and stormy night he penned Tilden’s Three Laws of Robotics:
1. A robot must protect its existence at all costs.
2. A robot must obtain and maintain access to a power source.
3. A robot must continually search for better power sources.
informally known as*:
1. Protect thy butt.
2. Feed thy butt.
3. Move thy butt to better real estate.
1. He justified this robotic declaration of self-interest as the only way robots can start evolving the way humans may have came from guppies looking for a good time by leaving the ocean.
From Bugs to Sapiens
Needing to find a lighter-minded group of people from his government and NASA days, Tilden decided to go and join a toy company. Who better than one audacious enough to self proclaim themselves, Wow Wee! It was a great match, and they gleefully began working on toy dinosaurs and bugs based on Tilden’s now renowned expertise.
Then came the master project that one could fairly say would change the landscape of robotics altogether. FartDude, later named Robosapien after initial market testing, was to be the culmination of Tilden’s work, finally bringing to bear a humanoid (sapien-like, if you will) robot capable of an impressive list of moves and rude sounds.
In Robosapien, you see the basics of BEAM philosophy and technological research. It follows the B as a biomorphic rendition of humans, E for the fact you can’t throw it in a bathtub, A because it’s stylin the latest magazine covers, and one heck of a lot of M going into the robo dancing capability.
That’s Mr. Sapien
Like no robot ever before, the Robosapien is affordable to the unwashed masses. The Robosapien is a crowning accomplishment when it comes to mobility, power consumption, programmability, and maybe most importantly: hackability.
Each arm has full 360 motion ability allowed by the, ahem, biomorphic shoulder joints and flexible elbows. Ending in three articulated fingers, Robosapien is capable of picking up, gripping, and throwing objects. The genuine full walking motion (most robots don’t genuinely walk outside a lab) is made possible design of the large feet and well placed sensors.
And do you know how much power it usually takes to run a robot Fuggedabowdit. Regular robots are dishonorable little battery-eaters always hungry for more, more, more! And who’s going to pay for these batteries, hmmm’ Well Robosapien brings no shame to itself when consuming power, essentially due to the astounding mechanical physics. It runs a full 6 to 10 hours on just one set of batteries. In fact, if you move Robosapien’s arm you’ll actually generate power for it! Hey man, that’s shrewd.
For those of you who want a robot that will fetch you a frosty one from the kitchen, you lazy bums will just have to wait until later versions. But you can program your Robosapien to do some pretty cools things in the meantime, like wander around taking swings at things, guarding your bedroom while you sleep, and a hilarious game of ‘pull my finger’. Try teaching your dog that trick smart guy.
So what’s so hot about the hackability, and is that even a word you ask? You’ve got some nerve. Tilden went through some serious, serious effort to be sure that robot enthusiasts could take apart the robot, as he would have done as a child, and tinker with modifications. Everything’s color-coded in there to make things easy for those of us without PhDs, and by all accounts, there’s plenty of additional room and power to accommodate whatever Frankenstein thing you can think up. There are entire books written on the subject should you wish to learn, so go forth and hack away. If it’s a good one, send it in and we’ll publish for all too either mock or applaud.
And Another Thing
So the next time you look at your Robosapien give a respectful nod to the world’s first-ever robot based on the science of applied biomorphic robotics. Then go chase a cat with it.
* Graciously lifted from Dr. Tilden’s excellent ‘Junkbots, Bugbots & Bots on Wheels’ book.
About The Author
This article was created by RobonetiX with support from Mr. Sapien himself. Please feel free to reproduce this article. All reproductions of this article must provide an html link pointing to http://stores.ebay.com/Robonetix-Store.

Science of Science

The Science of Science! by: Terry Connors
What is Science!?
First of all, Science! is not the same as science. Science! is the study and knowledge of all things scientific, quasiscientific, or pseudoscientific. Anything that is obscure, incoherent, or improbable is made clear by the purveyor of Science! (also known as the Scientist!). The Scientist! has access to knowledge that even scientists do not have access to. They are truly the masters of all that is True and Scientific!
There are 3 characteristics of the practitioner of Science!
They always work alone. Scientists usually have teams of other scientists and technicians working with them. The Scientist!, on the other hand, works alone, in their own, small, often home-built, laboratory. The laboratory will be filled with various whirring, clicking, blinking, or bubbling pieces of lab equipment which appear to have no purpose since the Scientist! never touches them.
They work fast. In real science, scientists develop theories, test their theories, and then modify or abandon the theories as the evidence evolves. The process often takes years, if not a lifetime. In Science! the Scientist! gets his or her answer in a matter of days (or hours, or weeks, or minutes, depending on what timeframe is most dramatic). Usually, the Scientist! gets a bright idea, runs to the lab to test the theory, and then comes back with an unexpected, but clearly genius, answer to the mystery/problem/question in record time.
They are always right. Everyone else is always wrong. In real science, peer review is a critical part of the scientific process. In Science! peer review is not only unessecary, but is detrimental. Mainstream scientists never accept what the Scientist! has to say until events prove them to be soundly (and often, fatally) wrong.
Television, movies, and literature are full of practitioners of Science! One of the best example is the Professor in the TV Series "Gilligan's Isle." Does anyone know what he was a professor of? That's right! He was a Professor of Science! The professor understood everything from primative cultures, to weather phenomena, to electromechanics, to astronomy. A master of Science!, he could do almost anything (except patch a hole in a boat).
Science! has evolved over time. In the 50's and 60's, the Scientist! was a non-specialist (and usually male). Science! gave him mastery over every possible field of study (much like the professor in "Gilligan's Isle"). In modern times, the Scientist! is more likely to be a specialist, to acknowledge that, in the real world, most scientists are specialists. What they get wrong, however, undermines the one thing they tried to get right. For example, in the TV show Stargate SG-1. The character of Sam Carter is a Scientist! specializing in physics, while Daniel Jackson is a Scientist! specializing in archaeology. They both (especially Sam) have the attributes of the Scientist!, however. 1) They work alone, 2) they solve the mysteries of the universe in a few hours or days, and 3) most of the other scientists (when they show up with a theory) are wrong.
Another example of a modern Scientist! is the protagonist, Robert Langdon, in The DaVinci Code. Although Langdon deviates slightly from the typical Scientist! (the typical Scientist! is alone in his beliefs, but Langdon actually has the support of many of his peers), in other ways he is the same. He manages to solve the great mystery in the course of an evening, and there is never, at any time, a question that he may actually be WRONG in his beliefs.
And so, this is Science!. It is a product of movies, television, and literature, and it is real, in the sense that perception is reality. People think that all real science is done by lone geniuses who try to buck the system that keeps them down. If you ask most people, they will probably say that we would have flying cars and robots by now if it weren't for the scientific community hobbling the handful of geniuses in their midst. It is this mindset that has led to the proliferation of pseudoscience, and theories such as Intelligent Design. The best defense against the growing misconception of what science is and what scientists do, is education. We need to teach our children, and our adults, that Hollywood is Hollywood, and that a Hollywood Scientist! has as much basis in reality as a Hollywood action hero.
About The Author
Terry Connors is a Gen-X family guy with 2 step-kids and a loving wife. He frequently blogs about current events, especially if there is a scientific angle to the news items. You can read more of his writings at: Another Stupid News Blog - http://news.virtualdominion.net.
All work is copyright, Terry Connors 2005

Microscopes

A Close-Up Look At Microscopes by: Logan Pallas
The microscope is an important educational tool used in scientific research and education. It is used to produce a larger image of an object for projects ranging from medical discoveries to important educational training in schools across the nation. Microscopes use technology to allow humans to view objects as they could never be seen with the naked eye alone.
A conventional microscope was first developed during the last part of the 16th century, which lead the world of science toward a prospering future in the world of medicine and biology. In it’s earliest years, the microscope was primarily used as a recreational device and was found mainly in wealthier homes. It wasn’t long, however, before technology and research began to blend for a new discovery relating to blood circulation. In addition, advancements in the study of bacteria and diseases were among the discoveries that followed.
The majority of microscopes are called light microscopes, which uses a series of high powered magnifying lenses in order to bend light rays. Studies continued through the seventeenth and eighteenth centuries while, at the end of the nineteenth century, an even bigger development occurred. With the realization that electrons could be used as a light source in microscopes, scientists were provided with a never before seen resolution. The first electron microscope was unveiled approximately 75 years ago, which allowed for even smaller things to be researched and viewed. Among the advancements, atoms were finally visible for the first time and viruses could finally be identified with the powerful magnification and resolution of the electron microscope.
A microscope is an important tool and should be treated carefully. Proper care should be exercised when handling, or transporting, a microscope in order to avoid damage to the unit. Always carry the microscope with both hands and in the upright position. If you have a special tote or a box, either will work fine for transportation. When the microscope is in use, always make sure that it is placed on a flat surface and one that is not shaky. A sturdy table is the best placement for a microscope, but avoid placing it close to the edge where it could fall off to the side. After each use, follow the manufacturer’s instructions in proper cleanup of the unit, as well as any slides. If you do not plan to view the slide’s contents again, they should be cleaned in order to avoid interaction with future items that are placed on the slide for viewing.
While much emphasis is placed on scientific research and the technical aspects of microscopes, it’s important to remember that children can also benefit from the tool’s educational teachings. When you’re a child, it’s fun to collect a sample of anything and check it out under a microscope. Of course, microscopes begin as toys for smaller children and advance to larger, and more realistic models, as the child ages and is better able to understand the importance of the tool. If a child learns to be familiar with a microscope at a young age, he/she will be much more prepared for biology classes and the various parts and styles of microscopes.
About The Author
Logan Pallas is a researcher and writer. Visit his microscope web directory at http://www.microscopex.com for more information. Feel free to reprint this article in its entirety as long as the links, and resource box are not altered in any way.