Da Vinci was dedicated to discovery of truth and the mysteries of nature, and his insightful contributions to science and technology were legendary. As the archetypical Renaissance man, Leonardo helped set an ignorant and superstitous world on a course of reason, science, learning, and tolerance. He was an internationally renowned inventor, scientists, engineer, architect, painter, sculptor, musician, mathematician, anatomist, astronomer, geologists, biologist, and philosopher in his time.

Born in 1452 in the city of vinci, as an illegitimate son of Ser piero da Vinci, da Vinci was sent to Florence in his teens to apprentice as a painter under Andrea del Verrocchio. He quickly developed his own artistic style which was unique and contrary to tradition, even going so far as to devised his own special formula of paint. His style was characterized by diffuse shadows and subtle hues and marked the beginning of the High Renaissance period. Like many great orig

An operator worked a lever to increase and decrease the pressure of the block against the paper. The invention of the printing press, in turn, set off a social revolution that is still in progress. The German printing pioneer Johann Gutenberg solved the problem of molding movable type about 1450. Once developed, printing spread rapidly and began to replace hand-printed texts for a wider audience.

Although the exact year of Gutenberg's birth is not known, it is estimated he was born around the year 1400. He was the son of a merchant in one of the largest towns in Germany-Mainz, a town renowned for its wine with a population of over 6,000 and residence of an elector, one of the mightiest princes of the Church in Germany. Johannes Gutenberg was the third of three children. His real name was Johannes Gensfleish, but he encountered some problems with his surname, which translates into English as "goose-flesh". He adopted the name of the area where his family lived, "Zum Gutenberg". In his youth he was educated in Latin by the clergy, and without his training in Latin his later work may well have proved impossible.

Tank - This machine is a man powered tank. The upper image shows the tank firing. There were multipl

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Approximate Pages = 3 (250 words per page double spaced)