How does an egg stand upright?

An egg can stand upright due to its shape, which is slightly asymmetrical. The wider end of the egg is more stable when placed on a flat surface, allowing it to balance. Additionally, the egg's contents, including the yolk and albumen, shift slightly when the egg is moved, helping to find the center of gravity that supports an upright position. The combination of shape and internal dynamics permits an egg to stand, albeit not very securely.