What's the difference between Lego bricks and domestic bricks?

Lego blocks are naturally uniform in color, smooth and angular in surface, and each block has a delicate Lego logo, while ordinary blocks are dull in color, rough in surface and prone to fuzzing. The second difference is the different materials; Lego building blocks are flexible and easy to bend, while ordinary building blocks are stiff and inflexible, easily deformed or even broken. The third difference is that Lego parts are firmly engaged, moderately elastic and the joints are basically seamless; Ordinary building blocks are easy to cause assembly errors, which eventually lead to uneven distribution of the firmness of the whole finished structure.

Lego building block is a kind of plastic building block invented by Danish Ollie Kirk christiansen. It can be inserted into endless shapes through the brain and hands, and is called "magic plastic building block". There are protrusions on one side and grooves on the other, and there are more than 300 shapes of/kloc-0. Each shape has 12 different colors, mainly red, yellow, blue, white and black.

Building a modular structure:

Most Lego bricks have two basic components-the upper protrusions and the inner holes. The bump of the building block is slightly larger than the distance between the hole and the side wall. When you squeeze the building blocks together, the protrusions will push the side walls outward and push the holes inward. This material is elastic and can keep its original shape, so the side walls and holes will squeeze the protrusions.