Solution to the problem

And to speculate?
Taking foundations or meditations, one can assume about as a step or pass, and be able to form a theory about something

How to describe the achievements in the social, scientific and technological fields, and those who have done?
 To describe the social, technological and scientific achievements, should investigate the decubrimientos or inventions made, describe how it was to be found, where, how, and when, to serve or uses.
to know who or who discovered only need to research the name or names of those who did.

And report on activities to the benefit or detriment of humanity? 
The communication activities of benefits or harm to humanity is very important to her people can be aware of the events. There are many ways to have communicated to people about these events, whether in newspaper, radio, TV Overhead, among others, in this way, people will be aware of the activities of profit or perjuecio for Mankind, and so be prepared to the future.