Philo of Byzantium was one of the most important mathematicians and engineers of the Hellenistic period.
He was from Byzantium but he lived most of his life in Alexandria.
Philo didn’t deal only with theory but he made constructions with which he could prove what he had in mind. His important constructions were the air pump, and the water pump, which worked with buckets.
Apart from these he made some items which worked with steam, like a horse drinking water, a girl pouring water and a siren for a lighthouse. With his last constructions he became the instigator to Heron of Alexandria.
Tolis Ritsikalis, Grade 3, 2nd Junior High School of Paralia