projecting+beam
71Nikola Tesla — Tesla, aged 37, 1893, photo by Sar …
72Coupling — This article is about a mechanical connection between two objects. For other uses, see Coupling (disambiguation). Rotating coupling A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.… …
73History 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.… …
74Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …
75Lock (water transport) — Canal lock and lock keeper s cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England …
76Beak — (b[=e]k), n. [OE. bek, F. bec, fr. Celtic; cf. Gael. & Ir. bac, bacc, hook, W. bach.] 1. (Zo[ o]l.) (a) The bill or nib of a bird, consisting of a horny sheath, covering the jaws. The form varies much according to the food and habits of the bird …
77Bracket — Brack et, n. [Cf. OF. braguette codpiece, F. brayette, Sp. bragueta, also a projecting mold in architecture; dim. fr. L. bracae breeches; cf. also, OF. bracon beam, prop, support; of unknown origin. Cf. {Breeches}.] [1913 Webster] 1. (Arch.) An… …
78Bracket light — Bracket Brack et, n. [Cf. OF. braguette codpiece, F. brayette, Sp. bragueta, also a projecting mold in architecture; dim. fr. L. bracae breeches; cf. also, OF. bracon beam, prop, support; of unknown origin. Cf. {Breeches}.] [1913 Webster] 1.… …
79crotchet — Bracket Brack et, n. [Cf. OF. braguette codpiece, F. brayette, Sp. bragueta, also a projecting mold in architecture; dim. fr. L. bracae breeches; cf. also, OF. bracon beam, prop, support; of unknown origin. Cf. {Breeches}.] [1913 Webster] 1.… …
80fork — Bracket Brack et, n. [Cf. OF. braguette codpiece, F. brayette, Sp. bragueta, also a projecting mold in architecture; dim. fr. L. bracae breeches; cf. also, OF. bracon beam, prop, support; of unknown origin. Cf. {Breeches}.] [1913 Webster] 1.… …
