double pulse ranging
51military aircraft — Introduction any type of aircraft that has been adapted for military use. Aircraft have been a fundamental part of military power since the mid 20th century. Generally speaking, all military aircraft fall into one of the following… …
52nutritional disease — Introduction any of the nutrient related diseases and conditions that cause illness in humans. They may include deficiencies or excesses in the diet, obesity and eating disorders, and chronic diseases such as cardiovascular disease,… …
53nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …
54endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… …
55sound reception — Introduction response of an organism s aural mechanism, the ear, to a specific form of energy change, or sound waves. Sound waves can be transmitted through gases, liquids, or solids, but the hearing function of each species is particularly …
56List of weapons in Star Trek — Contents 1 Energy weapons 2 Projectile weapons 3 Biological, radioactive, and chemical weapons …
57Space Shuttle — STS redirects here. For other uses, see STS (disambiguation). This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see… …
58turkey — /terr kee/, n., pl. turkeys, (esp. collectively) turkey. 1. a large, gallinaceous bird of the family Meleagrididae, esp. Meleagris gallopavo, of America, that typically has green, reddish brown, and yellowish brown plumage of a metallic luster… …
59Turkey — /terr kee/, n. a republic in W Asia and SE Europe. 63,528,225; 296,184 sq. mi. (767,120 sq. km). (286,928 sq. mi. (743,145 sq. km) in Asia; 9257 sq. mi. (23,975 sq. km) in Europe). Cap.: Ankara. Cf. Ottoman Empire. * * * Turkey Introduction… …
60Musical ensemble — This article is about musical groups. For the video game series, see Rock Band (game). For other uses, see Music group (disambiguation). The King Carter Jazzing Orchestra photographed in Houston, Texas, January 1921 …
