" Machines, friends or foes?" Ever since the beginning of time, human civilization has been trying to get their work done easily. They say that the wheel has been the most revolutionary invention till date. We couldn't agree more because nearly every single machine on this planet runs on the mechanism of wheel. The wheel really did speed up the progress of human beings from primitive to advanced living beings. Upto the iron age, operation of machines required manpower. This resulted in lots of misfortunes as we lost many people in factory accidents. It was felt that we needed something safer, to get our work done. Then came the digital technology to our rescue, opening newer doors of innovation. Now we live in a world where everything is possible with just the click of a button. Modern day computers can operate even a nuclear weapon system. With so much ease of doing anything with machines, is it really true that ...