MIT Study Finds Eggs Dropped on Their Sides Are Less Likely to Crack
Many people believe an egg is strongest when it stands upright on its tip. A new experiment from researchers at MIT suggests the opposite may be true. In a 2025 study, the team found that eggs dropped on their sides were surprisingly less likely to crack than eggs dropped upright. The result challenges a long-held idea about how eggshells handle force.
The finding matters beyond the breakfast table. Eggshells are a classic example of a thin, curved shell that must be strong but also light. Farmers, packagers and engineers all care about how eggs survive knocks and falls. The MIT work shows that everyday assumptions about shell strength deserve a second look.
What the Researchers Did
The MIT team set up controlled drop tests. They released eggs from the same heights and in different positions. Some eggs landed on their sides. Others landed on their tips or ends. The researchers then checked which eggs cracked and which stayed intact.
The experiment looked at two kinds of force. Static force is a steady push, like squeezing an egg in your hand. Dynamic force is a sudden impact, like an egg slipping off a counter. Both matter in real life, because eggs face slow pressure in a carton and sharp shocks during shipping.
Why the Side Position Helped
The results showed that eggs lying horizontally had more give. When an egg lands on its side, the curved shell can flex slightly and spread the impact over a wider area. That flexibility helps absorb the energy of the fall. An upright egg has a smaller contact point at the tip, so the force concentrates in one spot. A focused blow is more likely to start a crack.
This does not mean a sideways egg is unbreakable. A hard enough drop will still crack it. But in the MIT tests, the side position held up better than many people would expect.
Why This Challenges Common Beliefs
There is an old belief that an egg is strongest when stood on its end. Some of this comes from the shape of the shell. An egg is rounded at one end and more pointed at the other, and the curve looks like a natural arch. Arches are strong structures, so people assume the ends must be the toughest part.
The MIT study suggests that intuition is incomplete. Strength under a slow squeeze is not the same as strength under a sudden hit. A shape that resists steady pressure may still fail when force arrives quickly at a single point. The experiment separates these two cases and shows why testing matters.
The Value of Real Testing
The researchers stressed that widely accepted ideas should be checked with real experiments. Egg strength is a small example of a bigger lesson. Many beliefs sound reasonable and get repeated for years. Only careful measurement shows whether they hold up.
For investors, the story is a reminder about how science and business work. Companies often rely on assumptions about materials, packaging and product design. Testing those assumptions can save money and prevent failures. A simple drop test can reveal that a design is stronger, or weaker, than expected.
What It Means in Practice
The study does not tell shoppers to throw their eggs on the floor. But it offers useful context. Packaging designers may think about how eggs sit inside a carton and how they land during a fall. A sideways impact may be less damaging than a direct hit on the tip.
The bigger takeaway is about evidence. MIT’s 2025 experiment turned a familiar kitchen question into a careful test of static and dynamic force. The answer was surprising, and that is the point. Good science often overturns what seems obvious, and good decisions follow the data rather than the folklore.
