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81Arithmetic — tables for children, Lausanne, 1835 Arithmetic or arithmetics (from the Greek word ἀριθμός, arithmos “number”) is the oldest and most elementary branch of mathematics, used b …
82Insulin pump — Insulin pump, showing an infusion set loaded into spring loaded insertion device. A reservoir is attached to the infusion set (shown here removed from the pump) …
83Adjoint functors — Adjunction redirects here. For the construction in field theory, see Adjunction (field theory). For the construction in topology, see Adjunction space. In mathematics, adjoint functors are pairs of functors which stand in a particular… …
84Ship model — This article is concerned primarily with static models. For operating models see model yachting or radio controlled boat, Model of a 19th century vessel in the Bishop Museum, Hawaii …
85Earth sheltering — is the architectural practice of using earth against building walls for external thermal mass, to reduce heat loss, and to easily maintain a steady indoor air temperature. Earth sheltering is popular in modern times among advocates of passive… …
86Citation signal — Introductory signals are used in legal citations to present authorities and show how the authorities relate to propositions in textual statements. A legal writer uses an introductory signal to tell readers how her citation to legal authority… …
87Boy Scouts of America — For the Boy Scouting division within the BSA, see Boy Scouting (Boy Scouts of America). Boy Scouts of America …
88Coraline — This article is about the novel. For the film adaptation, see Coraline (film). For other uses, see Coraline (disambiguation). Coraline   …
89Hamtaro — Infobox animanga/Header name = Hamtaro caption = Hamtaro s English Logo ja name = とっとこ ハム太郎 ja name trans = Tottoko Hamutarō genre = Comedy, KodomoInfobox animanga/Anime title = director = Osamu Nabeshima studio = Shogakukan Productions Co., Ltd …
90Climbing route — Southern and northern Mount Everest climbing routes as seen from the International Space Station. A climbing route is a path by which a climber reaches the top of a mountain, rock, or ice wall. Routes can vary dramatically in difficulty and, once …
