Compare your wits with the nation's best students by David Johnson Test ConditionsThe following test was given to a random sampling of 566 college seniors. Only one student answered all 34…
A look at Simpsons cameos by Chris Warner Related Links The SimpsonsThe Simpsons Quiz for BeginnersThe Simpsons Quiz for ExpertsThe Simpsons HangmanThe Simpsons BiographyMatt Groening…
(Encyclopedia) needle, implement of metal or other material used to carry the thread in sewing and in various forms of needlework and manufacturing. The earliest needles were merely awls or punches.…
(Encyclopedia) parathyroid glandsparathyroid glandspârˌəthīˈroid [key], four small endocrine bodies, located behind the thyroid gland, that govern calcium and phosphorus metabolism. These four masses…
(Encyclopedia) PachycephalosaurusPachycephalosauruspăkˌĭsĕfˌəlōsôrˈəs [key] [Gr., = thick-headed lizard], bipedal herbivorous dinosaur of the late Cretaceous period, approximately 68–65 million years…
(Encyclopedia) Pirogov, Nikolai IvanovichPirogov, Nikolai Ivanovichnyĭkəlīˈ ēväˈnəvĭch pĭrōgôfˈ [key], 1810–81, Russian surgeon, b. Moscow. He entered Moscow Univ. at the age of 14 and completed the…
(Encyclopedia) pyridinepyridinepĭrˈĭdēn [key] or azineazineăzˈēn [key], C5H5N, colorless, flammable, toxic liquid with a putrid odor. It melts at −42℃ and boils at 115.5℃. Chemically, it is a…
