A potometer, or transpirometer, is a device used to measure the rate of transpiration, or the rate of loss of water, from the leaves of a plant.d. One type of potometer design commonly used in the biology classroom is the bubble potometer, where the rate of movement of a bubble of air inside a column of water is used to measure the transpiration rate of a plant.
A sphinx is a mythical creature with the body of a lion, most often with a human head and sometimes with wings. The creature was an Egyptian invention and had a male head - human or animal; however, in ancient Greek culture the creature had the head of a woman.
Most dates for the Great Sphinx of Giza place the time of its building during the 4th Dynasty of Egypt in the 3rd millennium BCE. It is believed by most that the sphinx was built by the pharaoh Khafre, and that the face seen on the Sphinx is carved in his image.