The Crazy Engineering Trick That Locks Metal Together Forever😲 #shorts

Engineers use extreme temperatures to create one of the strongest metal connections ever made. By freezing metal to -196°C, it shrinks just enough to slide into a smaller opening. Then, as it returns to room temperature, it expands and locks permanently into place. This incredible process is called an interference fit, and it’s used in heavy machinery, aerospace, and industrial engineering. #engineering #metal #science #technology #mechanicalengineering #factory #machines #industrial #physics #innovation #shorts