Materials improved by technology and their good or bad effects?

Technology is the use of man's knowledge of tools and crafts and how it affects his ability to control and adapt to his environment...

Man uses materials from the natural environment to make simple tools, get his food, cloth, and protect himself. The invention of the wheel helped him travel and explore his environment. New technological developments in the field of communication, like the internet and cellular phones, has allowed man to interact and explore further on a global scale..

In recent years, technology has made great progress in improving materials. Modern technology has transformed materials into amazing gadgets. Machine technology uses laser, rapid prototyping, microprocessing, and plastic processing. Their applications focus on lightweight construction materials like aluminum, magnesium, titanium, steels and polymers. These are also used in machines, automobiles, aircrafts, trains, and medical applications.