"Man is born free but everywhere is in chains" - Jean-Jacques Rousseau
Electrical Technology - It puts you inside a room. Fans, lights, TVs, air conditioners.
Automobiles - You are free. You can travel from Mumbai to Pune. Almost anywhere.
Steel - I believe it is about cooking and food. Many feel magnetic property of steel and this factor is important.. But steel is used in cars too. Sort of neutralized between electricity and automobiles. Food however seems appropriate to me. Steel is about food and cooking will not be liked by steel men in SAIL. But I believe this to be the truth behind steel.
Computers and mobiles - About man and woman themselves. It assists intelligence and augments the capacity of humans. This is likely to be less controversial.
What are your views?