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Invention on Instagram: "Bricklaying is one of humanity’s oldest crafts and its history reaches back to the first civilizations that sought permanence in their shelters. From the sun dried bricks of Mesopotamia to the fired clay of ancient Egypt, the same principle endures, stacking uniform blocks with mortar to create order, protection, and identity. What began as necessity evolved into artistry, shaping cities, temples, and homes that still stand as proof of human persistence and ingenuity. At

Bohrs model of atom