We all know that sensors are used for a variety of purposes such as in cars, lights, and at our homes too. But what is basically a sensor an...

  We use internet every day for phone calls, entertainment, information, gaming etc. But have you ever imagined HOW IT WORKS? First thing wh...

When you dial a phone number and the person whom you have dialled receives it. The SIM card which you have inserted into your device does al...