I am writing here an invention in the last century, which has changed the world of automation and controls. It has made every one's life more comfortable.
The invention of a semiconductor transistor device by Bardeen,
Brittain and William Schockley has lead us to the development of most
sophisticated computers, laptops, cell phones, calculators, appliances,
weapons, gadgets etc. In fact, this twentieth century advanced invention
is the basis for every electronic device used today.
With out a transistor device, there is no electronic
control. Half the total number of jobs in the world would not be there.
Such a fast growth in the world would not be possible at all in the last fifty
years. This electronic device is controlling every other device
now. In fact, human being is not controlling the electronics any
more. It is the electronic controls that are controlling human beings.
Unfortunately, the new inventions are giving more and more power in to the hands of a person and enabling the life of other people at stake in hands of some. The destructive power of inventions is also as high as the usefulness. So we must use the inventions to the common good.