Resistive touchscreens work on the basis of pressure applied to the screen. A resistive screen consists of a number of layers. When the screen is pressed, the outer later is pushed onto the next layer the technology senses that pressure is being applied and registers input. Resistive touchscreens are versatile as they can be operated […]
Capacitive touchscreen was invented first,the first one was built almost 10 years before the first resistive touchscreen.Nevertheless today’s capacitive touchscreens are highly accurate and respond instantly when lightly touched by a human finger.Capacitive touch screens distinguish and sense specific touch location based on the electrical impulses in a human body, typically the fingertip. This enables capacitive touchscreens to not require any actual force to be applied to the screen’s surface, at the same time capacitive screens typically don’t respond to styluses or gloved hands due to the lack of electrical impulses generated. A capacitive screen is usually made of one insulating layer, such as glass which is coated by a transparent conductive material on the inside Since the human body is conductive, which means electricity can pass through it, the capacitive screen can use this conductivity as input. When you touch a capacitive touchscreen with your finger, you cause a change in the screen’s electrical field.This change is registered, and the location of the touch is determined by a processor.This can be done by several different technologies but they all rely on the electrical change caused by a light touch of a finger. This is the reason you cannot use a capacitive screen while wearing gloves,the gloves are not conductive and the touch does not cause any change in the electrostatic field. Capacitive touch gets its name from the electrical distortion that results in the screen’s capacitive field when impressed upon by body capacitance, or the physical property of the human body that enables it to act as an electrical capacitor, or conductor of electric charges.capacitive screens are made of one main layer, which is constantly getting thinner as technology advances, these screens are not only more sensitive and accurate, the display itself can be much sharper, as seen on devices such as the iPhone 4S.
Today’s contact lenses fall into two categories: soft lenses that are made from water-containing plastics, and Rigid Gas Permeable (RGP or GP) Contact Lenses People choose to wear contact lenses for many reasons.Aesthetics and cosmetics are often motivating factors for people who would like to avoid wearing glasses or would like to change the appearance of their eyes. Other people wear contacts for functional or optical reasons. Contact lenses may also be classified by wearing schedule. Daily wear contacts must be removed, cleaned and stored each night, while extended wear contact lenses are made from materials which are safe for overnight wear. Sometimes “continuous wear” is used for a type of extended wear lens that can be worn for up to 30 days. Before touching the contact lens or the eye, it is important to wash hands thoroughly with soap and rinse well with water. Soaps that contain moisturizers or potential allergens should be avoided as these can cause irritation of the eye. Contact lenses are typically inserted into the eye by placing them on the index finger with the concave side upward and then using the index finger to place the lens on the eye. Rigid lenses should be placed directly on the cornea. Soft lenses may be placed on the sclera(white part of the eye) and slid into place. The other hand may be used to keep the eye open. A soft lens may be removed by pinching the edge between the thumb and index finger. Moving the lens off the cornea first can improve comfort during removal and reduce the risk of scratching the cornea with a fingernail. Never share your contact lenses! While it may seem like a fun idea to swap special-effect lenses with your friends, sharing contacts can spread harmful bacteria and may result in serious eye health problems, including loss of vision.Keep in mind that contact lenses generally are designed for daily wear only and are not FDA-approved to be Worn overnight.
Android 4.1 ( Jelly Bean ) Google developer conference on 27-2012, in this jelly bean was an incremental update with the primary aim of improving the functionality and performance of the user interface like: Enhanced accessibility. Bi-directional text and other language support. User-install able keyboard maps. Expandable notifications. Ability to turn off notification on an application specific basis. Shortcuts and widgets can automatically be re-arranged or re-sized to allow new item to fit on home screen. Bluetooth data transfer for Android Beam. Tablets with smaller screens now use an expanded version of the interface layout and home screen used by phones. Improved camera application. Multi channel audio. Ability for other language to add widgets from the application drawer without requiring root access.
A French study presented at the Alzheimer’s Association International Conference suggests that people who delay retirement may lower their risk of developing dementia and Alzheimer’s disease. A study of 4,29,803 retirees who were formerly self -employed suggests that that the risk of developing dementia was reduced by 3.2% for each extra year they worked beyond […]
This video is about converting Video files to different format by using the software video convert master & converting video to audios(Mp3)
Maintain a health weight in youth for a heart later. According to a study in the journal of the American Medical Association, the longer young adults are obese the greater the risk of developing hardened plaque in their arteries, a major risk factor for heart disease and storke. The researchers followed 3,275 young adults aged […]
Swedish engineer, Andreas Hammar, Has developed a machine that can turn Sweat from clothes into drinking water. The Sweat Machine was developed as part of a Unicef campaign to raise awareness about the lack of clean drinking water. The United Nations estimates that 780 million people in the world lack access to clen water and […]
This video is about cutting MP3 & making ringtones by using mp3 cutter & the best software for making it.
Going to bed at different times every night can adversely affect Kids’ mental abilities, according to a British study in the journal of Epidemiology and Community Health. The research included 11,178 children whose bedtime were recorded when they were 3, 5 and 7 years old. the children also took tests to assess their maths, reading […]