Viktor Kaplan was an Austrian engineer born on November 26, 1876, known for his significant contributions to turbine technology. He is best recognized for developing the Kaplan turbine, a type of water turbine that is particularly efficient for low-head hydroelectric power plants. This invention has played a crucial role in harnessing renewable energy from water sources. Kaplan's design features adjustable blades, allowing for optimal performance under varying water flow conditions. His work has had a lasting impact on the field of hydropower, making it possible to generate electricity more efficiently and sustainably. Kaplan passed away on August 23, 1934, but his legacy continues in modern energy production.