lrnit on Instagram: "The Science of the "Shrink Fit" ❄️⚙️ ​Ever wonder how engineers join two massive metal parts with zero room for error? Sometimes, a hammer isn't enough—you need physics. ​At room temperature, these parts are exactly the same size (or even slightly larger), making them impossible to slide together. By using Liquid Nitrogen at -196°C, we flash-freeze the inner component. ​What happens next? ​Thermal Contraction: The extreme cold causes the metal atoms to pack tighter, shrinkin