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Wednesday, May 5, 2010

Prolonged computer use and health risks for kids

Using computer and internet for different school tasks is a good idea which can save your time. Playing video games or chatting with friends online is also not bad , but sitting in front of computers for hours have some bad effects on health.

Sitting for a long time in positions that aren't natural for your body can strain your hands, wrists, back, and eyes. Over time, this can result in pain and a kind of injury called a repetitive stress injury.

Here are some tips which can help you safe from bad effects of prolonged computer use. Teachers and parents can make a copy of these tips and print it out to fix it near computer so that kids or teens remember to check these tips while working on computers.

Sitting Square in Your Chair

The way you sit is important. To sit square in your chair, put your behind in the center of the seat. Your legs should bend at the knees and rest on the floor. Most kids are too short to do this, so use a footrest or find a box or a stack of books to place under your feet.

Sit so your back touches the seat back the whole time. Try not to slouch or lean over the keyboard while you type. A chair that has lower-back support can help you do this.

Typing Time

When you type, sit so your elbows are bent at 90-degree angles (like an "L"). Your wrists should be straight, not angled up or down so your fingers rest gently on the keys of the keyboard. And if it feels like you have to stretch your fingers to reach the keyboard, move it closer to you.

Try to keep your fingers and wrists level with your forearms (the lower part of your arms). A wrist wrest can help you stay in the right position. If your wrists are starting to hurt, or you are waking up at night with wrist pain, you may be getting an overuse injury (this is also called carpal tunnel syndrome). If you're having this kind of pain, let your parents know. You might need to see your doctor.

A Mouse!

A small wrist rest also can help support your right hand as you move the mouse. Using a trackball instead of a mouse is also a good solution. A trackball allows you to use a few fingers, instead of just one, as you move around the computer screen.
All Eyes on This

Any time you're using the computer, your eyes are hard at work. Be kind to them by positioning the monitor 18 to 20 inches (46 to 51 centimeters) away from your face. At this distance, you shouldn't have to lean in to read what's on the screen.
Position the screen at your eye level, with the top of the monitor itself level with your forehead. This will keep you from having to lean your neck back (or bend forward) to see the monitor. Your mom or dad can help you get adjusted. They can help you raise the monitor a little higher by stacking a few books under it. You also can raise the height of the chair or sit on a pillow or two.
Take a Break

Here's a good piece of advice: Don't get so involved in the computer that you forget to go to the bathroom! And even if you don't have to go to the bathroom, be sure to take breaks. Kids shouldn't sit at a computer for more than 30 minutes without a break.

When it's time for a break, start with your eyes. Focus on something far away by looking out a window. This gives your eyes a rest from all that focusing on the computer monitor.

Then you'll want to give your body a break, too. Try to move your muscles. Go for a walk, shoot some hoops, or dance in front of the mirror.

Doctors recommend only 1 to 2 hours of screen time per day — which includes TV, the computer, and computer games. Make computer time just one of the activities you do instead of the only thing you do. 

Your body wiL thk U l8r!

Source: 'Familydoctor.org

Useful links:

'Prolonged computer use may lead you to eye and vision problems'

Sunday, May 2, 2010

Download millions of free ebooks at 'World eBook Fair'

Get ready to download millions of free ebooks from internet and there is no hidden cost, no membership or registration cost. You just need to bookmark the 'World eBook Fair' site to start downloading your favorite ebooks in July. Teachers, parents, students, scholars, researchers have a good chance of having access to online ebooks for free during one month.

'World eBook Fair Organization has announced that " 5th 'World eBook Fair' is going to be held from July 4th to August 4th 2010 ".

The 'eBook Fair Organization says :

'Our goal is to provide Free public access for a month to 3 Million eBooks.'

Details are:

The 5th Annual World eBook Fair will offer about Three (3) Million titles.

..100,000+
..750,000+
.2,00,000+
..250,000+
....17,000+
from Project Gutenberg
from The World Public Library
from The Internet Archive
from eBooks About Everything
from IMSLP

3,117,00+
Grand Total

Brief History of The World eBook Fair

Just two years ago The First World eBook Fairs came on the scene with about 1/3 million books and doubled to 2/3 million in 2008, and over a a million and a quarter presented last year. This year 2010 it is '3 Million eBooks'

Michael S. Hart who is the founder of Project Gutenberg and co-Founder of World eBook Fair says:

"There aren't even a million Kindles or Sony's, but there are now ~4 1/2 billion cell phones-- which means the possibility of reading readers via cellphones is larger than any other media.

The cell phone is the wave of the future, not, I repeat, NOT the Kindle or Sony approach, for they are only targeting millions, and I should like very much to reach billions of people.

More eBooks In More Languages

Obviously to reach billions of readers we have to present the eBooks in more languages than a simple Top Six list such as:

English
Chinese
German
French
Spanish
Urdu

Did you know there are 250 languages with over a million speakers?

In this collection of 2.5 million eBooks we're trying to reach readers in over half of these. Well, that's the goal. . .I hope we make it!!!"


During the rest of the year you can continue to download your selection of about 750,000 PDF eBooks by joining the "World Public Library".
Annual membership is only $8.95 per year.

Link: worldebookfair.org/

Saturday, May 1, 2010

How to search for reliable information at search engines?

Usually you enter a keyword or phrase at 'Google' or other search engines box and within seconds there are million of results. If you are looking for information for educational, scholar, research or relevant purpose then this is very easy tip which you can use and get results from only Government or Educational sites/blogs which are usually non profit and offer reliable information.

Process is very simple.

For example you need some information on 'home schooling'. You just enter .EDU or .GOV before your keyword and just add site or blog after it. It should look like:

.EDU+home schooling+blogs or 'sites'
.Gov+home schooling+site or 'blogs'

You would be surprised to see filtered results from reputable and reliable sites. Your results should not bring sites with affiliate links or fake sale pages.
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