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.
The Sphinx. The Riddle of the Sphinx is probably the most famous riddle from antiquity. It has its origins in a familiar story from Greek literature, in particular the Theban trilogy by Sophocles. In Oedipus Rex an oracle prophesized that the male child of the king and queen of Thebes would kill his father and marry his mother.