Cavitation

In close-up, moving water can be seen to hold a hidden danger that can destroy metal and stun animals. How can tiny bubbles create enough heat to cause such damage? Physics - Energy And Radioactivity - Learning Points. Cavitation is the formation of small bubbles due to low pressure in water. The propellers of ships are damaged when water bubbles collapse or implode due to an increase in pressure. The bubbles can reach temperatures of several thousand degrees kelvin. A dolphin's tail can be damaged by cavitation if it travels at speeds greater than 54km/h. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.