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Pager. A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. [2]
Al Gross (engineer) Irving " Al " Gross ( / ɡroʊs /; February 22, 1918 – December 21, 2000) was a pioneer in mobile wireless communication. He created and patented many communications devices, specifically in relation to an early version of the walkie-talkie, [1] Citizens' Band radio, [2] the telephone pager [2] and the cordless telephone. [3]
The construction of the canal was completed in 1914, 401 years after Panama was first crossed overland by the Europeans in Vasco Núñez de Balboa's party of conquistadores. The United States spent almost $500 million (roughly equivalent to $15.2 billion in 2023) to finish the project. This was by far the largest American engineering project to ...
Escalator. For the album by Sam Gopal, see Escalator (album). An escalator is a moving staircase which carries people between floors of a building or structure. It consists of a motor -driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizontal.
Post and lintel construction of the Airavatesvara Temple, India, a World Heritage Monument site Leinster House in Dublin retains column-shaped pilasters under a pediment for aesthetic reasons. Post and lintel (also called prop and lintel , a trabeated system , or a trilithic system ) is a building system where strong horizontal elements are ...
The system was developed with the help of Scott Hassan and Alan Steremberg, both of whom were cited by Page and Brin as being critical to the development of Google. Rajeev Motwani and Terry Winograd co-authored with Page and Brin the first paper about the project, describing PageRank and the initial prototype of the Google search engine ...
Motorola Pageboy, model H03BNC1102D0. Motorola Pageboy was the second pager ever produced by Motorola with individual-unit addressing, [clarification needed] after the less known 1955 (not 1956 as believed) Pager called "Handie-Talkie Radio Pocket Pager". [citation needed] The first pager-like system was used in 1921 by the Detroit Police ...
Building information model of a mechanical room developed from lidar data. Building information modeling ( BIM) is a process involving the generation and management of digital representations of the physical and functional characteristics of buildings and other physical assets. BIM is supported by various tools, technologies and contracts.