Magic sand!!!

What is magic sand???
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It was awesome to see magic sand remaining dry even after pouring it in water.
Do you want to know how is it made?
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It is made using some sprays and keeping it in microwave oven for an hour.

Home made AIR CONDITIONER...

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Want to keep your air cool??? 
Lack of money in buying an Air Conditioner?
Here is the way to make your own AC.
Its pretty cheap and you can feel the chill air around you.

Want to work with laptop batteries??

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I saw this video and tried this with my old laptop battery and it worked out perfectly. I was astonished by this and decided to change my batteries myself. It works good. You can save a lot of bugs by working on it yourselves.

How to charge a dead battery? Here it is.

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Rechargeable batteries can be recharged easily. But what about a dead battery that cannot be done using a recharger???
For this kind of queries, here is the answer.
Everything depends upon how you interpret it, so a battery that is fully charged can pass the charge to another battery is the principle involved here to charge a dead battery.
Watch the video to learn the technique elaborately.