Robots
There are many tasks which are to be completed in factories, military and civilian areas which are mechanical and hazardous.
Earlier
, these tasks were performed by human beings, at great risk to their
life. Many would be disabled or their health would be adversely
affected later in life.
With advances in technology, it has
become possible to design mechanical devices which can perform these
tasks. Though the initial development cost may be high, the money saved
is significant.