In physics and other fields, a thought experiment (from the GermanGedankenexperiment) is an experiment that is not intended to be performed. These experiments are used to attempt to understand something about the universe.
... female, the urethra is about 1-1.5 inches (25-38 mm) long and opens in the vulva between the clitoris and the vaginal opening.
In the human male, the urethra is ...