exposed-conductive-part
71Building insulation materials — A selection of insulation materials can aid in building insulation. All of these are based on standard principles of thermal insulation. Materials used to reduce heat transfer by conduction, radiation or convection are employed in varying… …
72ear disease — ▪ human Introduction any of the diseases or disorders that affect the human ear and hearing. Impaired hearing (deafness) is, with rare exception, the result of disease or abnormality of the outer, middle, or inner ear. Serious… …
73Mercury (element) — gold ← mercury → thallium Cd ↑ Hg ↓ Cn …
74Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
75Spark plug — A spark plug (also, very rarely nowadays, in British English: a sparking plug) is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark.… …
76Geology of Venus — Radar image of the surface of Venus, centered at 180 degrees east longitude Venus is a planet with striking surface characteristics. Most of what is known about its surface stems from radar observations, mainly images sent by the Magellan probe… …
77Dalek — This article is about the fictional species. For the 1963 serial, see The Daleks. For the 2005 episode, see Dalek (Doctor Who episode). For other uses, see Dalek (disambiguation). Doctor Who alien …
78Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor …
79Capacitance Electronic Disc — Capacitance Electronic Discs The CED, exposed from protective caddy Media type video playback media Capacity 60 minutes NTSC video per side, 27,000 frames per side[ …
80plant development — Introduction a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …
