Water Printer, description


The history of mankind through the centuries has seen a succession of many eras, discoveries, successes and failures. The growth of the human race has always gone hand in hand with the growth of consumption, profits, communications, technology and science,

Spacejunk, the Kessler syndrome


For humans, the conquest of space began in 1957, when the Soviet Union successfully launched the artificial satellite Sputnik. Since then, more than 4,000 satellites and 500 astronauts have gone into space. Despite the very important scientific discoveries achieved, space