topic5:
The 21st century is an era of technological and scientific development. Influence in almost every aspect of society. Continuing from the work of their predecessors, scientists today are researching unprecedented fields of knowledge. Sustainable invention created our civilization today. The advancement of science and technology has become more comfortable than ever. We can call each other on smartphones, travel to hot lands by plane. Besides, there are also harms caused by science, the era of machine civilization is the cause of industrial confrontation between countries, accidents about injuries caused by machines, helping people to create. Many weapons to equip for war between countries. But this is because people use scientific invention the wrong way, not by science!
Science is recognized and the key intellectual force of today's modern era
