narrow+aperture
91Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
92Uncertainty principle — In quantum physics, the Heisenberg uncertainty principle states that locating a particle in a small region of space makes the momentum of the particle uncertain; and conversely, that measuring the momentum of a particle precisely makes the… …
93Cystiscus — Scientific classification Kingdom: Animalia Phylum: Mol …
94reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …
95History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
96Catadioptric system — A 150 mm aperture catadioptric telescope (Maksutov) A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors (catoptrics). Catadioptric… …
97Rubber Ducky antenna — on a transceiver The Rubber Ducky antenna (or Rubber Duck aerial) is an electrically short monopole antenna which functions somewhat like a base loaded whip antenna and is sealed in a rubber or plastic jacket to protect the antenna.[1]… …
98Digital single-lens reflex camera — Nikon D700 full frame (FX) digital SLR camera …
99Mandaloceratidae — Temporal range: M ?U Silurian Scientific classification Kingdom: Animalia Phylum: Mollusca Class …
100Bulla (genus) — Taxobox name = Bulloidea regnum = Animalia phylum = Mollusca classis = Gastropoda subclassis = Orthogastropoda superordo = Heterobranchia ordo = Opisthobranchia subordo = Cephalaspidea superfamilia = Bulloidea superfamilia authority = (Lamarck,… …
