Ancient Greek philosopher Aristotle, together with Socrates and Plato, laid much of the groundwork for western philosophy.
Marie Curie was a Polish-born French physicist famous for her work on radioactivity and twice a winner of the Nobel Prize.
Leonardo da Vinci was an Italian painter and a genius in many realms of science. He is best known for two paintings: the "Mona Lisa" and "The Last Supper."
Albert Einstein was a German-born physicist who developed the theory of relativity. He is considered the most influential physicist of the 20th century.
Italian scientist and scholar Galileo made pioneering observations that laid the foundation for modern physics and astronomy.
Entrepreneur Bill Gates founded the world's largest software business, Microsoft, with Paul Allen and became one of the richest men in the world.
Stephen Hawking is known for his work regarding black holes and for authoring several popular science books. He suffers from amyotrophic lateral sclerosis.
Steve Jobs co-founded Apple Computers with Steve Wozniak. Under Job's guidance, the company pioneered a series of revolutionary technologies, including the iPhone and iPad.
Elon Musk is an entrepreneur known for co-founding Tesla Motors, X.com—which later became PayPal—and SpaceX, the last of which launched a landmark commercial spacecraft on May 22, 2012.
English physicist and mathematician Sir Isaac Newton, most famous for his law of gravitation, was instrumental in the scientific revolution of the 17th century.
Famed mathematician Alan Turing proved in his 1936 paper, "On Computable Numbers," that a universal algorithmic method of determining truth in math cannot exist.
Steve Wozniak is an American computer scientist best known as one of the founders of Apple and the inventor of the Apple II computer.