Heron of Alexandria was an ancient Greek mathematician who was a resident of a Roman province (Ptolemaic Egypt); he was also an engineer who was active in his hometown of Alexandria. He is considered the greatest experimenter of antiquity a...

Aryabhata is the first of the great astronomers of the classical age of India. He was born in 476 AD in Ashmaka but later lived in Kusumapura, which his commentator Bhaskara I (629 AD) identifies with Patilputra (modern Patna). Aryabhata...

Guido of Arezzo (991/992 – after 1033) was a music theorist of the Medieval era. He is regarded as the inventor of modern musical notation (staff notation) that replaced neumatic notation; his text, the Micrologus, was the second-most-widel...

Thomas Savery was an English inventor. Initially interested in naval applications of engineering (he designed an early paddle-wheel), Savery then became interested in pumping machines. On July 2, 1698 he patented an early steam engine, and...

Bartolomeo Cristofori di Francesco was an Italian maker of musical instruments, and is most remembered for inventing what would become the modern-day piano. He was born in Padua and became known as a harpsichord and spinet maker. In 1690 he...

John Harrison was a self-educated English carpenter and clockmaker. He invented the marine chronometer, a long-sought after device for solving the problem of establishing the East-West position or longitude of a ship at sea, thus revolution...

Richard Trevithick was a British inventor and mining engineer from Cornwall, UK. His most significant contribution was to the development of the first high-pressure steam engine. He also built the first full-scale working railway steam loco...

Joseph Ritter von Fraunhofer is known for discovering the dark absorption lines known as Fraunhofer lines in the Sun's spectrum, and for making excellent optical glass and achromatic telescope objectives. In 1814 Fraunhofer invented the...

Louis Daguerre was a doctor, a painter and a theatrical set designer, but he is best remembered as one of the inventors of photography. Both he and Nicéphore Niepce began their initial experiments separately, but in 1829, they teamed up. Ni...

Samuel Finley Breese Morse was an American painter and inventor. After having established his reputation as a portrait painter, in his middle age Morse contributed to the invention of a single-wire telegraph system based on European telegra...

Louis Braille was a French educator and inventor of a system of reading and writing for use by the blind or visually impaired. His system remains virtually unchanged to this day, and is known worldwide simply as braille. Blinded in both...

Antoine-Joseph (known as Adolphe) Sax was a Belgian musical instrument designer, best known for inventing the saxophone. Having left school, Sax began to experiment with new instrument designs. In 1841, Sax relocated permanently to Paris an...

Jean Joseph Étienne Lenoir was a Belgian engineer who developed the internal combustion engine in 1859. Prior designs for such engines were patented as early as 1807, but none were commercially successful. Lenoir's engine was commercialized...

Eadweard Muybridge is often called the father of the motion picture because of his photographic studies of animal motion. He began his career as a landscape photographer, and always considered himself more an artist than a scientist, altho...

Alfred Bernhard Nobel was a Swedish chemist, engineer, inventor, businessman, and philanthropist. Known for inventing dynamite, Nobel also owned Bofors, which he had redirected from its previous role as primarily an iron and steel produc...