What is the similarities and differences of a reaction and an impulse blade?

Both reaction and impulse blades are designed to harness energy from fluid flow, but they operate on different principles. Reaction blades generate lift through the pressure difference created by fluid flow over their surfaces, while impulse blades convert the kinetic energy of high-speed fluid jets into rotational motion. A key similarity is that both types of blades can be used in turbines and pumps, but their designs and operational mechanisms differ significantly. Additionally, impulse blades typically operate at higher speeds compared to reaction blades, which are more efficient at lower velocities.