cavity tracking
51Compact Disc — CD redirects here. For other uses, see CD (disambiguation). Not to be confused with DVD. Compact disc The readable surface of a Compact Disc incl …
52Mariner 4 — Operator NASA Mission type Flyby Flyby of Mars …
53Romania — This article is about the modern country. For other uses, see Romania (disambiguation). Romania România …
54Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun …
55Frog — For other uses, see Frog (disambiguation). Frogs Temporal range: Triassic–present …
56Trogon — Taxobox name = Trogons image width = 200px image caption = White tailed Trogon, Trogon viridis regnum = Animalia phylum = Chordata classis = Aves infraclassis = Neognathae ordo = Trogoniformes ordo authority = AOU, 1886 familia = Trogonidae… …
57Retina — For the Retina display in the iPhone 4, see iPhone 4#Display. Retina Right human eye cross sectional view. Courtesy NIH National Eye Institute. Many animals hav …
58Inertial navigation system — An Inertial Navigation System (INS) is a navigation aid that uses a computer and motion sensors to continuously track the position, orientation, and velocity (direction and speed of movement) of a vehicle without the need for external references …
59Aortic dissection — Classification and external resources Dissection of the aorta descendens (3), which starts from the left subclavian artery, reaching to the abdominal aorta (4). Aorta ascendens (1) and aortic arch (2) are not involved …
60Video 2000 — Note: This article is about the format sometimes known as VCC or Video Compact Cassette . It should not be confused with Philips s earlier (and incompatible) videocassette format called VCR or Video Cassette Recording . Video 2000 (or V2000; also …
