
Hero of Alexandria
Hero of Alexandria was a Greek engineer and inventor who lived in the first century AD. He is best known for creating early devices that demonstrated the principles of mechanics and pneumatics. Among his notable inventions are the aeolipile, an early steam engine, and various automation devices like a mechanical bird and a steam-powered whirligig. Hero also wrote important works on mathematics and geometry, influencing later scientific thought. His innovative ideas laid the groundwork for future inventions and contributed significantly to the understanding of engineering and technology in the ancient world.