Keep Your Laptop Healthier By Letting It Breathe

Short Advice: 

Buy a laptop cooling-pad and use it always. 

The Problem:

The majority of laptops have fans on the bottom side (the blue spots on the figure). The problem is that many of us leave our laptops on over a surface that does not let the air flow into the cooling fans, such as leaving it on the sofa or any piece of cloth. So it overheats! 

Now the good news is that over 90% of the laptops are designed to hang if their components reach a dangerous temperature; to protect them from failing permanently. 

But the bigger problem is letting the micro-dust get into the fans, which eventually slow them down, leading them to provide poor cooling-ability eventually. 

The Solution:

Buy and use cooling pads, they are available on most electronics stores and not very expensive. Some of them come with extra USB ports or speakers. But the main thing you are looking for is the big external fan.

Also when you want to leave the laptop on on a surface consider putting it upside-down.

More info about laptop cooling pads can be found through this link:
http://en.wikipedia.org/wiki/Laptop_cooler 

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From: Information Technology For Everyone

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Extending Phone's Battery Up-Time

Short Advice: 

Short Tip : Switch from 3G to 2G (or EDGE) when you don't have access to a charger and need your phone to stay alive longer.

Explanation:
If your 3G phone allows you to switch from 3G to 2G you can use this when you need to increase its standby time until you get the chance to charge it.

3G is simply a much powerful communication technology that provides faster data transfer. You can see the difference in speed when you are surfing the web or steaming videos (like Youtube) and audio (like internet radio). But the truth is that you don't need this power all the time, do you?