During the space race, nations used technology developed for the to explore outer space. Sputnik
was launched by the
in 1957. In Neil Armstrong became the first person to walk on the
moon.

chlorofluorocarbons are released via: aerosol sprays and refrigerants.

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.