Tesla turbine

A Tesla turbine is a bladeless rotary engine that uses smooth, parallel discs instead of traditional blades. When a fluid such as steam or air flows across the discs, it adheres to their surfaces due to viscosity, causing the discs to spin. The fluid's energy is transferred through this friction, spinning the turbine without the need for blades, making it simple and durable. Designed by Nikola Tesla, it operates efficiently at various scales and can handle high temperatures and pressures, making it suitable for renewable energy and industrial applications.