„Lodní šroub je Rakušanem... ...a má jako takový být znám v dějinách“
"The ship's propeller is Austrian... ...and as such it should be known in history"

Summary/Abstract: Across the diverse lands of the Habsburg Monarchy, Josef Ressel pursued a remarkable career that ultimately transformed maritime technology and secured his place among Europe’s great inventors. Born in Chrudim in 1793, Ressel combined talents in forestry, engineering, surveying, and invention while working in present-day Czechia, Austria, Slovenia, Croatia, and Italy. The article follows his professional journey from forestry service in Carniola and Istria to his later appointments in Trieste, Venice, and other Adriatic regions, where he developed numerous technical innovations. Although he is best known for inventing and refining the ship propeller, his achievements also included projects in transportation, navigation, forestry management, and mechanical design. Persistent financial difficulties, bureaucratic obstacles, failed business ventures, and patent disputes repeatedly hindered the practical application of his inventions. Despite successfully testing the screw propeller and obtaining official privileges for the invention, Ressel struggled to gain recognition during his lifetime and even became a victim of intellectual appropriation abroad. His dedication to experimentation continued throughout decades of professional service, often without adequate financial reward or public acknowledgment. Only after his death in 1857 was the significance of his contribution fully recognized, and international scientific institutions eventually confirmed his role as the inventor of the modern ship propeller. Today, monuments, memorials, and place names across Central and Southeastern Europe testify to the enduring legacy of a visionary whose work revolutionized maritime engineering.

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