He was a German goldsmith, inventor of the modern printing press with movable types, around 1440.

Leonardo da Vinci was a Florentine polymath of the Italian Renaissance. He was at once a painter, anatomist, architect, paleontologist, botanist, writer, sculptor, philosopher, engineer, inventor, musician, poet, and urban planner.

Michelangelo Buonarroti, known in Spanish as Miguel Ángel, was an Italian Renaissance architect, sculptor, painter and poet, considered one of the greatest artists in history for both his sculptures and his paintings and architectural work.

Galileo Galilei was an Italian astronomer, engineer, philosopher, mathematician and physicist, closely associated with the scientific revolution. An eminent man of the Renaissance, he showed an interest in almost all sciences and arts.

Benjamin Franklin was an American politician, polymath, scientist, and inventor. He is considered one of the Founding Fathers of the US As a scientist, he was an important figure in the American Enlightenment and the history of physics for his discoveries and theories about electricity. As an inventor, he is known for the lightning rod, bifocal lenses, the glass harmonica, and the Franklin stove, among other inventions.

Sandford Fleming was a Scottish-born Canadian engineer and prolific inventor, best known for proposing the creation of standardized time zones and the 24-hour time system. He designed Canada's first postage stamp and did extensive surveying and cartographic throughout the country, taking charge of the engineering work of the Intercolonial Railway and the Canadian Pacific Railway.

Alexander Graham Bell was a British, naturalized American scientist, inventor, speech therapist. He contributed to the development of telecommunications. In 1876 he patented the telephone in the United States.

Nikola Tesla was a Serbian-born American inventor, electrical engineer, and mechanic, noted for his contributions to the design of the modern alternating current electricity supply.

Madame Curie was a French nationalized Polish physicist and chemist. She is a pioneer in the field of radioactivity, she is the first and only person to receive two Nobel Prizes in different scientific specialties: Physics and Chemistry.

The Wright brothers, Wilbur and Orville, were two aviators, engineers, inventors, and aviation pioneers, often named together, and recognized worldwide as having invented, built, and successfully flown the world's first airplane.

Albert Einstein was a German physicist of Jewish origin, later nationalized Swiss, Austrian and American. He is considered the most important, well-known and popular scientist of the 20th century.