According to HowStuffWorks.com, walruses can sleep and swim at the same time, too. While in the water, walruses can choose between sleeping underwater or above. A walrus can hold its breath for five minutes, just enough time for a nap. For a deeper sleep, walruses inflate spaces inside their body, called pharyngeal pouches, with up to 13 gallons of air.
Jeremy Bentham introduced the principle of utilitarianism to the penal system. He suggested that the penal system should ensure that the punishment causes more pain to the criminal than the pleasure they derived from the crime. The situation would, in turn, deter the individual from future participation in the crime.
Career. 1  Euclidâs âElementsâ is considered as one of the most influential works in the history of mathematics, from the time of its publication until the late 19th or early 20th century. 2  In his Elements, he deduced the principles of âEuclidean geometryâ from a small set of axioms. Euclid also wrote works on perspective, conic sections, spherical geometry, number theory and rigor. In addition to his most famous work âElementsâ, there are at least five works of Euclid that have survived to this day.