fuses
41Harmony — This article is about musical harmony and harmonies. For other uses of the term, see Harmony (disambiguation). Disharmony redirects here. For the episode of Angel, see Disharmony (Angel) …
42Programmable read-only memory — D23128C PROM on the board of ZX Spectrum Computer memory types Volatile RAM DRAM (e.g., DD …
43Alternation of generations — (also known as alternation of phases or metagenesis) is a term primarily used in describing the life cycle of plants (taken here to mean the Archaeplastida). A multicellular sporophyte, which is diploid with 2N paired chromosomes (i.e. N pairs),… …
44Pyrotechnics — The term pyrotechnics can also be used for fireworks events. Pyrotechnics is the science of materials capable of undergoing self contained and self sustained exothermic chemical reactions for the production of heat, light, gas, smoke and/or sound …
45Power supply — For the Budgie album, see Power Supply (album). A vacuum tube rackmount adjustable power supply, capable of +/ 1500 volts DC, 0 to 100mA output, with amperage limiting capability. A power supply is a device that supplies electrical energy …
46Acrosome reaction — During fertilization, the acrosome reaction is the reaction which occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a cap like structure over the anterior half of the sperm s head.As the sperm approaches the zona… …
471996 shelling of Qana — For 2006 attack, see Qana airstrike. Coordinates: 33°12′32″N 35°17′56″E / 33.209°N 35.299°E / 33.209; 35.299 …
48Aboriginal rock — refers to a style of music which mixes rock music with the instrumentation and singing styles of Aboriginal people. Two countries with prominent Aboriginal rock scenes are Australia and Canada.AustraliaIn Australia, Aboriginal rock mixes rock… …
49Ovule — This article is about the plant structure. For animal ovules, see ovum. Micropyle and Ovular redirect here. For the structure in animals, see Micropyle (zoology). For the shape, see oval. Location of ovules inside a Helleborus foetidus flower… …
50Bill, the Galactic Hero — infobox Book | name = Bill, the Galactic Hero title orig = translator = image caption = author = Harry Harrison illustrator = cover artist = Steve Fastner and Rich Larsen country = language = English series = genre = Science Fiction publisher =… …
