Organized efforts to seek for extraterrestrial intelligence have used radio telescopes to detect indicators of technology use, or technosignatures, given off by alien civilizations. In medication, new applied sciences had been developed for analysis , therapy , and research . An array of Neolithic artifacts, including bracelets, axe heads, chisels, and sharpening toolsThe Neolithic Revolution led to an acceleration of technological innovation, and a consequent improve in social complexity. The invention of the polished stone axe was a significant advance that allowed large-scale forest clearance and farming. This use of polished stone axes increased greatly in the Neolithic however was …