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.
Though there have been conflicting evidence and viewpoints over the years, the view held by modern Egyptology at large remains that the Great Sphinx was built in approximately 2500 BC for the pharaoh Khafra, the builder of the Second Pyramid at Giza.