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How to Know If You Need Eye Glasses

Knowing whether you need eyeglasses can be challenging if you do not know the signs to look for. If you have trouble seeing or difficulty focusing, it may be time to consider whether you need eyeglasses. But there are more subtle signs you may not know about that can help let you know if you […]



How to Test a Car Battery With a Multimeter

Few things can ruin an adventurous road trip as quickly as a dead battery in a small town in the middle of nowhere — and with no mechanic. A car’s battery is essential to giving the starter motor the energy required to turn the flywheel until the engine reaches self-sustaining combustion. A few minutes of […]



How to Read a Soil Texture Triangle Chart

Soil texture, which refers to the relative proportion of mineral particles of various sizes in soil, is among the most important soil characteristics. Texture influences water-holding capacity, drainage, aeration, organic matter content and other properties. A common soil science and agricultural tool, the soil texture triangle uses the percentages of sand, silt and clay in […]



How to Enable a 2530P Fingerprint Reader

HP’s 2530P notebook computer has an Intel processor, a 12.1-inch WXGA display, two wireless local area network antennas, and supports up to 8 GB of system RAM. The 2530P has an optical DVD/CD drive and supports a hard drive ranging from 80 to 160 GB. Its fingerprint reader allows a user to log into Windows […]



How do I Get Wilson Certified?

The Wilson Reading System (WRS) is a highly structured multi-sensory language program based on the Orton-Gillingham approach to reading. Orton-Gillingham reinforces learning by having the student listen, speak, read and write simultaneously. The Wilson Reading System has been shown to be effective with students who have language-based learning disabilities, such as dyslexia. The program has […]



What Can Affect a Pulse Oximeter Reading?

[IMG] http://img-aws.ehowcdn.com/640/cme/cme_public_images/www_ehow_com/i.ehow.com/images/a04/ua/b3/can-affect-pulse-oximeter-reading_-800×800.jpg [/IMG] www.daviddarling.info/images/pulse_oximeter.jpg The Device The pulse oximeter measures the oxygen saturation in the patient’s blood instead of directly through a blood sample and differences of blood volume in the skin. The process creates a photoplethysmograph (PPG) that gives a volumetric measurement of an organ optically. A medical monitor shows the patient’s oxygenation and/or […]



How to Read Soccer Odds

Wagering bets on sporting events can add a shot of adrenalin to a quiet night in as you cheer your team (and your money) onto victory. Soccer is one of many sports you can wager bets on via online betting sites (outside the U.S.) or through regulated betting shops. However, soccer odds typically have a […]



How to Read a Mitutoyo Micrometer

Mitutoyo set out to create an affordable, more accurate micrometer, according to the company’s history. In the years since its foundation, the company met its original goals for the standard mechanical micrometer and has expanded its offerings to include a much larger variety of measurement instruments, including several types of micrometers. Regardless of the style […]



How to Read Basic Music Notes

A sheet of music may look like mysterious lines, dots and squiggles to the uninitiated. However, learning to read music is no different from learning to read another language. The notes themselves communicate pitch and rhythm, while other notations on the page give directions for expression and intensity. To learn to read music, begin with […]



How to Read a TB Test

The tuberculosis or TB skin test, also known as a PPD test, is used to determine if someone has developed an immune response to the bacterium that causes TB. A response to the test can occur if someone has TB or if the person was exposed to it in the past. Schedule an appointment with […]