Did Ya Know?

Did you know that every action has an equal and opposite reaction?

A scientist named Isaac Newton figured this out in the 18th century and it became one of his Three Laws of Motion.  Think about the time you sit in a chair. Your body exerts a force downward and that chair needs to exert an equal force upward or the chair will collapse. If you push an object, that object pushes back in the opposite direction equally hard. You can see this demonstrated in a Newton's Cradle.The silver ball will hit the rest of the silver balls in the cradle and the force will travel through them til it   pushes the last ball out and the whole process starts all over again.