Correct Answer: Blaise Pascal

Solution : The correct option is Blaise Pascal .

In 1653, the French scientist Blaise Pascal made significant contributions to the understanding of fluid mechanics, including the principle you mentioned. Pascal's law, also known as Pascal's principle, states that when pressure is applied to an enclosed fluid, it is transmitted undiminished throughout the fluid and to the walls of the container. This principle is a fundamental concept in fluid mechanics and has applications in hydraulic systems and various engineering and scientific fields.