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Electric Scooters For The Mobility Impaired

A serious illness or injury which limits a person’s power of mobility can have serious detrimental effects upon both the individual whose mobility has suffered and the family of the individual. Thanks to advancements in the technologies of mobility, however, these injuries no longer mean an individual is destined to spend most of their days indoors.

One major development in mobility technology is the advancement of the electric scooter.

Scooters are ideal for elderly people, who still have reasonable mobility around the house or on very short walks but who find shopping trips or walks over more than a block unmanageable.

There are three major types of electric scooter: the travel scooter, the mid-size scooter, and the outdoor scooter.

The travel scooter sounds like it would be the most advance of the three, but in fact it is intended for lighter use. The travel scooter comes in three- or four-wheel designs, and is meant for indoor use or outside on hard, smooth surfaces. The small wheels on the travel scooter are ideal for maneuverability in enclosed spaces, around furniture and other items around the house. They are usually designed to be collapsible for easy vehicular transportation, and generally have a low battery capacity as they are not meant for longer excursions.

The mid-size scooter and the outdoor scooter are considered to be “daily use” scooters. They are for individuals who enjoy doing their own shopping and longer excursions.

The mid-size scooter is available in three- or four-wheel models, and has a large wheel size that is suitable for use outside. The maneuverability is not as fine as with the travel scooter, but still allows for good use in coffee shops, stores, restaurants, and malls. Mid-size scooters are not made to be dismantled, so a van or truck is needed in order to move the scooter from one location to another. Mid-size scooters can come with a large variety of options, including power seats, headlights, turn signals, and suspension.

The outdoors scooter is the SUV of the scooter family. These scooters are for individuals who are highly committed to large amounts of time outdoors over al kinds of terrain and will not be held back by their limited mobility. They outdoor models usually come with four wheels, in order to gain maximum stability on rough terrain, but three-wheel models are available. A larger battery allows the scooter to be used for longer distances and time periods, and the outdoor model scooter can also come with suspension and light packages. The outdoor scooter is not very maneuverable indoors, and it also requires a large vehicle equipped with a lift to transport.

Features and Benefits of DLP TVs

Even today, Texas Instruments remains the primary manufacturer of this technology. Many different manufacturers license the technology from Texas Instruments, and build their products around the TI chipset. In addition to its use in televisions and projectors, DLP technology is used in a number of specialized applications such as lithography and imaging.

DLP technology differs from other video technology in that it utilizes a small digital micromirror device (DMD) to tilt more than 1.3 million of these tiny mirrors, each of them smaller than the width of a human hair either toward or away from the light source contained within the DLP device. This process creates the dark and light pixels which appear on the projection screen.

The light is then filtered through a color wheel rotating at 120 times per second, to produce a technology that is capable of producing some 1024 different shades of gray. It is this gradation of color that really makes DLP technology stand out, and these gradations of color are achieved using color filters which are backlit using just the right intensity of pure white light.

There are four major components to the DLP system:

The DMD chip, which controls the mirrors
The color wheel
The light source and
The optics
In order to produce the picture, the light from the lamp passes through the color wheel filter and into the DMD chip, which then switches its mirrors on or off according to the color which is reflecting off of them.

This digital light processing, or DLP, technology is rapidly becoming a major player in the world of the rear projection TV, and more than two million of these TVs have been sold. More than 50 manufacturers sell at least one model of DLP based television, and as of 2004 the DLP TV had achieved a 10% market share. In addition, small standalone units, known in the business as front projectors, have become popular items both in the world of business presentations and in the world of home theater.

Advantages of DLP Technology

There are a number of important advantages to television sets that use DLP technology to produce their displays. Some of these advantages include:

Images that are smooth and free of jitter
No possibility of screen burn in
Good contrast
Good depth of color
In addition, DLP rear projection televisions are generally smaller, thinner and lighter in weight than traditional CRT televisions of similar size. Another potential advantage of the new DLP technology is that the light source is replaceable, which may be able to provide a longer lifespan than either traditional CRT or new plasma screen displays. The light source of the DLP unit is much easier to replace than that in an LCD model, and many models of DLP television feature light sources that are easily changed by the end user. Of course no one wants to replace the light source before its time, and the newest LED light sources on the market, introduced in April of 2006, have been shown to last 20,000 hours before needing to be replaced.

Disadvantages of DLP Technology

Of course there are some disadvantages to DLP television technology as well, and it is important for those in the market for a new TV to be aware of these potential pitfalls. For instance, in some single chip DLP designs, viewers may be bothered by the so called “rainbow effect”, which affects how colors are displayed on the TV and perceived by the viewer.

In addition to this rainbow effect, some possible disadvantages of DLP technology include:

Not as thin or as sleek as LCD or plasma displays, even though the weight is comparable
Some models have noisy fans
The replacement bulbs can be quite expensive, ranging from $200 to as much as $500
Competing Technologies

The main competitor to DLP in the market for rear projection televisions is known as LCoS (liquid crystal on silicon). This technology creates its images by using a stationary mirror which is mounted on the surface of a chip, and then uses a liquid crystal matrix to control how much light is reflected to create the image. These competing standards are still being worked out, so it is important to shop carefully and to read lots of reviews before making a final purchase.

When shopping for a DLP television, it is important of course to learn as much as you can about the new technology, and it is just as important to shop around for the best possible price. When shopping for a new DLP TV, it is important to look carefully at the kind of tuner the unit uses. Many modern television sets are designed to be multisystem devices, meaning that not only are they capable of reading the NTSC signal used in North America and Japan, but they will also be able to deal with competing standards such as PAL and SECAM. This can be an important consideration, so it is important to make sure you understand these various formats and how they affect you as an end user.

It is important as well to look at the type of components that can be connected to the new DLP television. Most modern TVs are built to accept signals not only from cable TV and satellite TV boxes but from DVD players, VCRs, and even computers. The presence of a VGA or DVI connection will allow the unit to function as a computer monitor as well as a television, but it is important to use caution when using any kind of rear projection TV for this purpose. While plasma TVs can often make excellent computer monitors, technologies like DLP may struggle to provide the depth and resolution that computer users are used to.

Even though the prices of televisions in general, and DLP televisions in particular, have become a lot more affordable in recent years, these TVs are still major purchases, and it makes sense to give that purchase the consideration it deserves. As with any purchase, shopping around carefully will help you get not only the lowest price but the best overall value as well.

The Basic Starting Point In Selecting A New Comforter Set

There are literally thousands of options available in comforter set designs. However, there are several critical issues that one must consider in order to make the best choice possible when picking out a comforter set. Many comforter sets, quite frankly, can be a bit of an investment for your home. That is why it so important to do your homework and make your selections based upon multiple factors, not just one or two.

It is after numerous hours of dedicated research and careful consideration, that the average consumer will understand their options well enough to make a solid product purchase decision. Hopefully, as you conclude reading this article, you will have a much better idea as to which direction you would like to go in selecting a new comforter set for your bedroom.

A comforter set can mean many things to different people. There are some sets, which come only with the comforter, while others will include the complete “bed in a bag.” If you know up front what accessories you wish to get with your comforter set and the budget you have to spend on your bedding, it will help you reach the end of the process in a more satisfactory purchase decision.

Bed comforter sets can run the gamut of styles and pricing, ranging anywhere from a hundred dollars to thousands. This is why it is so important to understand how much you are willing to spend before you engage the shopping process. Once you understand your spending limits, then you are better prepared to determine whether you might just want a comforter, a bed in a bag package, or the full meal deal with pillow shams, canopy covers, dust ruffles, additional sheet sets, etc. If your budget is not a major concern, you may even opt to have a comforter set custom made just for you.

Once you have determined how much you are willing to spend on a comforter set, now it is time to get down to the nitty-gritty of picking one out.

One of the primary questions to answer, after you have set your budget, is how many bedding accessories do you want to purchase with your comforter? Many bedding manufacturers will offer items such as a matching dust ruffle, coordinating pillow sham, sheet sets, even window treatments. Depending upon the name brand of the product, many bed comforter sets can also be found with additional elements that the average consumer may not have even considered, such as wallpaper, borders, and coordinating bathroom decorations. Many of the comforter sets available today provide so many more options, which are designed as companion products to be sold with the comforter set.

Once a shopper understands how many and what accessories they want to get with their comforter set, they need to determine what types of materials they want to pursue in their bedding products. Polyester, cotton, and silk are the primary fabrics used to enclose the comforter package. On the inside of the comforter, polyester fibers, cotton, wool and down are often used as a stuffing material. Each kind of material, at each level of the comforter’s design, has its positives and negatives to consider.

It is important to understand in advance what fabrics you would like your comforter and bedding to be made from, because, depending on the individual, there are some fabrics that the consumer will want to avoid at all costs. For example if you want to stay within a reasonable price frame, then choose fabrics such as cotton or polyester synthetic blends. There are multiple comforter sets available in these fabrics, which tend to be reasonably priced with various design options. If money is no issue you may want to go the route of a silk comforter set. Lightweight yet warm, this may be a great choice for you if you have no fears of breaking the bank.

Wool filled comforters can be a wise choice in a comforter set if you are allergy-prone and desire a natural product. These, however, can get very warm so you should know your internal thermometer well, before choosing this kind of comforter. Additionally, a down-filled comforter can make for a great comforter set that offers plenty of warmth on those cold, winter nights, but down-filled products can create havoc for those who are prone to allergies. Many people like the down-filled option, since it typically offers product choices that range from lightweight to heavy, and the new baffle box stitching keeps the down product from shifting like it did in the comforters of old.

You should also consider your individual style when it comes to making a comforter set selection. After all, the design and styling of a comforter set speak to the personality and taste of its owners. There are numerous choices that one now has when choosing styles, colors, and patterns. Determine which color palette works best with your individual tastes and start there. Decide if you would like to see this palette in solids or if patterns are a better fit with your taste. Also know which patterns and styles work with your fabric choices and this will further help in the decision making process.

Choosing the right comforter set for you can be a challenge, but it can be made just a bit easier when you follow the above guidelines. If you do that, you will be able to turn your humdrum bedroom into one of luxury and bliss with your new comforter set, suitably tailored to meet your own unique individuality.

Electric Linear Actuators – The Rotary Motion Producer

Mechanical energy is an area of science that is making strides every day. The study of how actuators produce mechanical motion by converting various forms of energy into mechanical energy is a source of great exploration. Science finds new ways to make use of actuators every day including for medical purposes. Many scientists believe that the more they study these seemingly simple machines, the more they will discover ways of helping mankind.

The way in which a linear actuator works is that there is a motor that rotates a drive screw using a synchronous timing belt drive. Some linear actuators can also use a worm gear drive or direct drive. Which ever the choice, the turning of the screw pushes a drive nut along the screw, which in turn pushes the rod out and the rotating the screw in the opposite direction will retract the rod. According to the Association of Sciences, the drive screw is either an ACME or ball thread or is belt-driven which is what gives the machine its motion. A cover tube protects the screw nut from environmental elements and contamination thus allowing for the machines use continually without the chance of it getting gummed up. Radial thrust bearings permit the screw to rotate freely under loaded conditions and gives the linear actuator its strength.

Linear actuators usually serve as part of motion control systems. These days most are run by computers. Control systems, a device that you find linear actuators in, move or control objects. This is made possible by the actuators.

There are various forms of energy that run actuators. These forms of energy include, hydraulic, pneumatic, mechanical and electrical. Linear actuators are used a lot in robotics and factory automation.

Linear motion is when an object moves in a straight line. This is the basic concept that drives the linear actuator. One has to stop and consider when choosing a linear actuator which type they need to fit the purpose of their project. Some things to keep in mind are the speed, stroke length and load rating of the actuator. Programmability of the actuator is also a factor especially when the application will be one that requires specialized detail. A linear actuator can be used in just about any forum. Ask yourself some questions when attempting to choose the right one for your project such as are there particular safety mechanisms required, environmental concerns to be addressed or space issues?

The First Wrist Watches

As with many fashion trends in times gone by, the wrist watch was first made fashionable by royalty — specifically Queen Elizabeth I who was given one in the late 1500s. It was an adaptation of the pocket watch made more feminine and worn as an adornment accessory.

The very first widely worn wristwatches were designed exclusively for women and called wristlets. Men of the late 19th century and early 20th century still kept track of time using a pocket watch. They considered the wristlet a fashion trend that would, like all others, come and go; and the wristwatch would at that time never be considered by men as anything but a feminine bobble for women.

The wristwatch as a useful way to conveniently keep time for men actually started out as a wartime necessity. The British army in their fight against South Africa in the Boar War in the early 1900s strapped pocket watches to their wrist so that they could hold their weapons and still synchronize maneuvers with other troops. The first wristwatches for men were promoted to the military for men going into active service. Many of these influential men found the convenience of not fishing in a pocket for their watch indispensable even after returning from the field.

Changes in watchbands also added to the popularity of the wristwatch for both men and women. The flexible band pieces that attached to the open-faced watch made it easy to fasten a leather strap, which kept the watch securely, attached to the wrist. Now wristwatches were standard military issue for the allied troops of World War I.

In 1915, The Rolex Watch Company, formerly known as Wilsdorf & Davis, was founded. Hans Wilsdorf liked the idea of a wristwatch for both men and women and worked to improve the accuracy. Rolex was recognized as a leader in this research and received the first wristwatch Chronometer award given out by the School of Horology in Bienne.

In the mid-1920s, following the war, men started to associate wristwatches with the brave heroes who fought and no longer viewed them as only for women. Rolex seized upon this new image and continued through the 1950s to market watches specifically to men. Professional, masculine-style watches were developed to be worn by men in various fields of work.

The development of new technology capable of tracking time and performing the other functions of a cell phone or planner may lead to a time when the watch will be less of an important way to keep time and more of fashion accessory or status symbol. But, let’s face it, if anyone ever asks you if you know the time, your first instinct is to raise your wrist, whether or not you remembered to put on your watch!

Steel Yourself With a Stun Gun

There is no shortage of danger out there in today’s world. Whether you live in small-town America or the big bad city, crime seems like a permanent fixture in society. It’s no wonder, then, that tools of self-defense have become one of fastest-growing items on people’s shopping lists. And at the top of the list, for both everyday civilians and even cops, are stun guns.

Stun guns work by zapping an attacker with a high electrical voltage. Usually, the “gun” is more of a wand, something you wield in your hand, which has two metal prongs at the end. The charge emanates from these prongs, so you’ll want to touch the bad guy with those. Then zap! watch as the stun gun immobilizes him or her.

No worries, though, on whether or not you severely harmed the attacker. Stun guns are designed to incapacitate somebody, not to kill them, so the charge that they put out has more bark than bite. Stun guns have just the right amount of bark to do the trick.

They work by completely discombobulating a person’s nervous system. As you probably learned in high school biology class, the human nervous system includes our brain, spinal cord, and nerves, and it works by passing along electrical signals from the brain to all parts of our body. It’s what helps us to speak and see, and our nervous system allows us to move our muscles at will, as well as involuntarily.

The stun gun stops all that. The energy pulse causes a person’s muscles to go practically haywire, contracting at a very high movement rate. All of this muscle activity causes the muscles to put out lactic acid. Remember the last workout or jog you had, when your muscles started to burn? That was lactic acid, which makes it hard for your muscles to do anymore work.

The electricity from the stun gun also causes a “blackout” in the whole nervous system, so the messages between the brain, spinal cord, and nerves get interrupted. The total end result from the stun gun is a person who can’t move their muscles, who loses their balance and their bearing, and remains ‘out of it’ and harmless for several minutes afterward.

Of course, like anything else, the stun gun has a different effect depending on the person it is used on. Some people may go down like a sack of potatoes after only a second of touching the stun gun, while another attacker my need five seconds of exposure to the stun gun to be incapacitated. There is a direct relationship between the time a person is exposed to the stun gun, and the effects of the stun gun. In other words, the longer you hold the stun gun to someone, the more debilitated they become. Once a person is down, and you cease and desist with the weapon, the effects will eventually wear off.

Unlike other forms of electricity, the stun gun’s power cannot be passed by touching the person being hit, or by standing in a puddle with them. That is good news for you.

When buying a stun gun, you should consider its voltage and size. Of course, if you’re carrying the stun gun in a small purse, you’ll need a small stun gun. But try to buy the highest voltage stun gun possible.

Home Audio Speakers: Considerations When Buying Home Theater Speakers

There are a number of things that you should consider before purchasing home theater speakers. Depending upon the brand you purchase and the components that make up the rest of your system, you might find that you experience unwanted distortion or that the speakers you choose simply can’t handle the volumes at which you set your surround sound system. Take the time to talk to employees at the home theater equipment store and, if possible, listen to demo speakers that have been set up in-store so that you can get a feel for any distortion that might occur.

There are a lot of speaker systems out there, ranging from the PSB Image Series to the various Dali Ikon lines. To help you in making the right decision, make sure that you keep the following considerations in mind.

Distortion
One of the most common causes of audio distortion is having the volume set too high or having too much power coming through the speaker cables. Different speakers can have different amounts of distortion, so it’s important that you choose a brand that will have as little distortion as possible. This is definitely one situation in which you want to talk to a professional. Provide them with as much information about your home theater system as you can, including the type of receiver and amplifier that you’re using and how you plan to have the speakers mounted, so that they can better match you with something that will meet your needs.

Placement Requirements
Not all speakers are going to be mounted the same way, or even be the same size. You’re going to have to consider the space that’s available to you as well as the types that you want to include in your home theater system. You’ll need to choose from among tower speakers, in-wall speakers, wall-mounted speakers, and even in-cabinet speakers in order to decide how you want your speakers to appear. Tower speakers will require floor space or at least something to set them on, whereas wall-mounted speakers will need to have enough support within the walls to keep them from pulling out their mountings. In-wall speakers are unobtrusive, but require alterations to the walls that can be inconvenient if you decide to remove them later, while in-cabinet speakers are built in to you entertainment center or other audio cabinet but are limited on where they can be placed. Of course, a combination of different types can be used as well to help you get the most out of your speaker arrangement.

Volume Limitations
Just as some speakers will start generating distortions at higher volumes, others can also be seriously damaged if you try to turn the volume up to a higher level than they are designed to handle. Home theater speakers that can handle higher volumes may cost a bit more, but that cost is worth it if you plan on having music, movies, or other audio playing at higher levels. If you don’t want to have your audio system turned up very high, you might be better off with standard speakers.

Bass/Treble
It is important to remember that specialized speakers such as woofers and tweeters are also available and can be used to customize your audio experience to your preferences. Be sure to get assistance in designing your home theater system’s speaker arrangement so that you can bring out exactly the sounds that you most want. Many audio professionals can help you to find the perfect balance that will take your surround sound audio to the next level and make sure that you’re finished with the end result.

Great Ways To Find Excellent Deals On Contact Lenses

Contact lenses come in a wide variety of makes and styles. Although one needs to obtain a prescription in order to purchase their contacts, there is a wealth of options available when it comes to purchasing contact lenses. This makes it easier for the individual to find the best deal possible when searching for contact lenses. There are many places where a contact lens wearer can look in order to find their particular make of contact lenses at an extremely reasonable price.

Find Great Deals Online

One way to find a fantastic deal on contact lenses is by searching companies and providers, which sell contact lenses online. In general, all one needs to do is to select their particular type of contact lenses, enter their prescription information so that it can be verified by the company prior to shipping the lenses and pay for the contact lenses. The prices which one will come across online are quite inexpensive when compared with the prices at some retail stores. There are a few different well-known contact lens distributors, such as 1-800 Contacts, which provide an array of choices for contact lens wearers everywhere. If one has access to the Internet, considering purchasing contact lenses online is an extremely beneficial thing to do.

Manufacturers Rebates from the Eye Doctor

Another great way to find an excellent deal on contact lenses is to inquire about possible manufacturers rebates at one’s eye doctor’s office. Frequently, the optometrist will receive special rebates from various contact lens manufacturers who are trying to get the word out on their contact lens varieties. This will often yield rebates for the patients in the form of $20 and upward in many cases. Checking with the eye doctor for any possible contact lens rebates is another great way to obtain a good deal on the purchase of contacts.

Retail Store Specials

Lastly, one may be able to find a great deal by going to a retail store, which sells eyeglasses and contact lenses. Frequently stores such as these will have seasonal sales where one or more types of contact lenses are on sale to the public. All one needs is a prescription and they are well on their way to obtaining a new pair of contact lenses at a great price.

Conclusion

Contact lenses are a necessary purchase, which do not have to break the bank. By following the aforementioned tips, one may just be able to find the perfect deal on a new pair of contact lenses.

This Citizen Eco Drive Mickey Watch is not Mousy

Citizen eco drive Mickey Mouse watches are keepsake wristwatches that are as popular as men’s and ladies’ watches as they are for children. Both Citizen with its eco drive and Mickey Mouse watches have a long history and sterling reputations.

The Citizen Watch Company began in Tokyo in 1918 as the Shokosha Watch Research Institute. Its name was changed to Citizen Watch Company in 1930. Mickey Mouse watches became part of its standard repertoire some time in the 1960’s and the eco-drive that Citizens made famous was introduced in April of 1966. Citizen eco-drive wrist watches require no battery and are simply powered by light, and thus ecologically friendly.

Though discontinued, Citizen eco drive Mickey Mouse watches, whether men’s or ladies, are keepsakes and collector’s items and as such are available online.

At one wristwatch collectors auction site you can, for example, buy a men’s Citizen Mickey Mouse watch with brown leather strap for under $80. This men’s watch has a stainless steel watch case with gold tone, a polished finish, a white watch dial with Mickey Mouse design, hands and hour markers that are gold toned, the date displayed at three o’clock, a Tang wrist watch clasp, Japanese quartz movement, and of course, the advantageous Citizen eco-drive that keeps your watch running without any battery. This watch is water resistant.

For the ladies this same site offers a gold tone watch for about $100. Its bracelet and case are both gold tones, its finish nicely polished and the watch has Japanese quartz movement. This Citizens eco-drive Mickey Mouse wristwatch has a dial of mother of pearl that features an attractive Mickey Mouse design. The deployment clasp is hidden and the watch is water resistant.

How You Can Increase The Lifespan Of Your Projector Bulb Or Lamp

The replacement of projector bulbs is an all-too-frequent occurrence for anybody that has owned a home theater projector for any length of time. While a two thousand hour lifespan may sound like a lifetime to some people, rest assured it is not long before the projector lamp will need replacing. There are however, some general tips that can help to expand the life of a headlamp for the projection unit.

Do not touch the lamp with bare hands
One of the most frequent problems encountered is people replacing the bulbs with their bare hands. While this is fine for an ordinary light bulb, it is not a good practice for a projector lamp. The lamp in a projection unit burns much hotter than any regular light bulbs. The effects of touching it with bare skin are equally magnified and problematic.

Touching a projector bulb with the bare skin leaves traces of oil on the lamp surface. While this may seem a very minor detail, it is detrimental both to the bulb and the quality of the resulting multimedia display. The oils will get burnt onto the lamp and drastically reduce the lifespan. As the oil is baked into the surface, it actually diffuses the light being projected, reducing the lumens actually being sent to the refractive surfaces. The light will not be enough to project the image that has come to be expected from the home theater projection system. While the problem may not be noticeable at first, over the course of a little time, the quality will degrade to the point of not being viewable.

Turn off the projector power after turning off the lamp

It is highly recommended to turn the power on the projector to the “off” position only after having turned off the lamp and allowing it to cool. This will allow the cooling fans to do the job they were designed to do. While rapid cooling and heating result in repeated contractions and expansions of the bulb filament, it is much better that it be done more quickly with the cooling fans. Likewise, turning the projector on and allowing the cooling fans to run for a moment before turning on the lamp will help as well. This will add hours to bulb life expectancy and allow for longer hours of viewing pleasure on the home theater projection system.

Constant Movements

Constantly bumping or moving the projector, especially while it is hot can be very detrimental to the projector lamp. The filament in the bulb loses almost all tensile strength when it is heated during normal usage. It is much the same as the filament in a camp lantern. The principle is the same; the filament effectively becomes almost the same consistency as ash, making it extremely vulnerable to damage when it is hot. Even after proper cooling, the lamp filament is very sensitive. Care should be taken when moving the projector for whatever reason. While it is always a good idea to be careful with electronic equipment, some aspects of the home projector are actually a bit more sensitive.

It will usually be necessary to move the projector when cleaning the filters. As always, it is a good idea to move it carefully without jerking it around or bumping it any more than needed. Taking an extra moment or two to check the projector mount and make sure it is still securely fastened can also be beneficial and prevent slips and movement which may otherwise be harmful.

With a little care and a little preventative maintenance, the projector lamps will still need to be changed, but not nearly as often.