Why do eggs spin?

* Angular Momentum: This is a property of spinning objects, like a spinning top or a spinning egg. It's a measure of how much an object is rotating and how difficult it is to stop that rotation.

* Conservation of Angular Momentum: A fundamental law of physics states that angular momentum is conserved. This means that the total amount of angular momentum in a closed system remains constant.

* Egg Spinning: When you give an egg a spin, you are providing it with angular momentum. This angular momentum is conserved, so the egg continues to spin until something slows it down (like friction from the air or the surface it's spinning on).

Why do some eggs spin differently?

* Shape and Center of Mass: The shape of an egg affects how it spins. A perfectly round egg will spin smoothly. A slightly elongated egg will wobble as it spins because its center of mass isn't perfectly centered.

* Distribution of Weight: If the yolk is closer to the center of the egg, it will spin more smoothly. If the yolk is off-center, the egg will wobble as it spins.

The "Egg Trick":

The classic "egg trick" where you spin an egg and it stops spinning abruptly is related to how the yolk is positioned. A raw egg with a yolk that is not in the center will have a wobble. This wobble is caused by the off-center yolk. The wobble will gradually decrease, eventually stopping the egg from spinning. This happens because the yolk is liquid and will move towards the center of the egg, reducing the wobble and making the egg spin more smoothly.

Let me know if you'd like to know more about any of these concepts!