guide apparatus
41nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …
42Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
43Floyd Rose — is the organization that licenses, distributes and manufactures the Floyd Rose Locking Tremolo invented by Floyd D. Rose. It also manufactures guitars using the system. Floyd Rose owns the patents on the design, and licenses these patents to… …
44Friedrich Accum — Infobox Scientist name = Friedrich Accum image size = 250px caption = From the European Magazine (1820) engraving by James Thomson. birth date = birth date|mf=yes|1769|03|29 birth place = Bückeburg, Schaumburg Lippe death date = death date and… …
45Radon — This article is about the chemical element. For other uses, see Radon (disambiguation). astatine ← radon → francium Xe ↑ Rn ↓ Uuo …
46Critique of Pure Reason — Part of a series on Immanuel …
47Country Fire Service — The Country Fire Service is a volunteer based fire service in the state of South Australia in Australia. Many parts of Australia are sparsely populated whilst at the same time they are under significant risk of bushfire. Due to economics, it is… …
48literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
49encyclopaedia — Reference work that contains information on all branches of knowledge or that treats a particular branch of knowledge comprehensively. It is self contained and explains subjects in greater detail than a dictionary. It differs from an almanac in… …
50Collagen — Tropocollagen triple helix Collagen /ˈkɒlədʒɨn/ is a group of naturally occurring proteins found in animals, especially in the flesh and connective tissues of mammals.[1] It is the main component of connectiv …
