of accurate shape
61Universe — For other uses, see Universe (disambiguation). Physical cosmology …
62Hourglass — For other uses, see Hourglass (disambiguation). Hourglass in a three legged stand An hourglass (sandglass, sand timer, sand clock, egg timer) measures the passage of a few minutes or an hour of time. It has two connected vertical glass bulbs… …
63military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… …
64ship — shipless, adj. shiplessly, adv. /ship/, n., v., shipped, shipping. n. 1. a vessel, esp. a large oceangoing one propelled by sails or engines. 2. Naut. a. a sailing vessel square rigged on all of three or more masts, having jibs, staysails, and a… …
65Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …
66Radiocarbon dating — (sometimes simply known as carbon dating) is a radiometric dating method that uses the naturally occurring radioisotope carbon 14 (14C) to estimate the age of carbon bearing materials up to about 58,000 to 62,000 years.[1] Raw, i.e. uncalibrated …
67Folding@home — Original author(s) Vijay Pande Developer(s) Stanford University / Pande lab Initial release 2000 10 01 …
68Atolls of the Maldives — This article discusses the natural geographical atolls of the Maldives. See Administrative divisions of the Maldives for the administrative units also known as atolls. See Islands of the Maldives for individual islands that make up the… …
69Space Interferometry Mission — Infobox Space telescope name = Space Interferometry Mission (SIM) caption = Artist s concept of the SIM telescope in space organization = NASA / JPL major contractors = Northrop Grumman alt names = SIM PlanetQuest nssdc id = location = orbit type …
70Internal ballistics — Internal ballistics, a subfield of ballistics, is the study of a projectile s behavior from the time its propellant s igniter is initiated until it exits the gun barrel. The study of internal ballistics is important to designers and users of… …
