projecting+beam
51Balcony — Bal co*ny (b[a^]l k[ o]*n[y^]; 277), n.; pl. {Balconies} (b[a^]l k[ o]*n[i^]z). [It. balcone; cf. It. balco, palco, scaffold, fr. OHG. balcho, palcho, beam, G. balken. See {Balk} beam.] 1. (Arch.) A platform projecting from the wall of a building …
52Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …
53laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; …
54Southeast Asian arts — Literary, performing, and visual arts of Myanmar (Burma), Thailand, Laos, Cambodia, Vietnam, Malaysia, Singapore, and the Philippines. The classical literatures of Southeast Asia can be divided into three major regions: the Sanskrit region of… …
55Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
56Audience scanning — An audience watches a laser light show during the SIB trade fair in Rimini, Italy in 2002. Audience scanning (sometimes called crowd scanning ) occurs when a laser beam is directed toward the people observing a laser show or display. Although… …
57Electron microscope — Diagram of a transmission electron microscope A 197 …
58Gothic architecture — See also: Gothic art The western façade of Reims Cathedral, France …
59Muon spin spectroscopy — is an experimental technique based on the implantation of spin polarized muons in matter and on the detection of the influence of the atomic, molecular or crystalline surroundings on their spin motion. The motion of the muon spin is due to the… …
60Iron Man's armor — refers to the powered metal suit worn by Tony Stark when he assumes his superhero role of Iron Man. The first version of the armor was created by Stark with the help of Ho Yinsen. Unlike most other superheroes, the appearance of Stark s armor has …
