When you try to break an egg long way why does it not break?

You're right! It's much harder to break an egg lengthwise. Here's why:

* Shell Structure: The egg shell is strongest along its length. It's designed this way to withstand the pressure of the egg's weight when the hen is sitting on it. The shell is made up of calcium carbonate crystals that are arranged in a criss-cross pattern, which is very strong lengthwise.

* Shape: The oval shape of the egg distributes pressure more evenly when force is applied along its length. This makes it more resistant to cracking.

* Membrane: The egg has a thin membrane beneath the shell that also helps to hold it together.

When you try to break an egg lengthwise, the force is distributed over a larger area of the shell, making it less likely to crack. On the other hand, when you break an egg widthwise, you're concentrating the force on a smaller, weaker point of the shell.