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The spark gap is inside the box with the transparent cover at top center. A spark-gap transmitter is an obsolete type of radio transmitter which generates radio waves by means of an electric spark. [1][2] Spark-gap transmitters were the first type of radio transmitter, and were the main type used during the wireless telegraphy or "spark" era ...
Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural languages, largely superseding the ISO 639-2 three-letter code standard.
In addition to time signals and weather reports, NAA also broadcast (in Morse code) news summaries that were received by troops on land [57] and aboard ships in the Atlantic. [58] During the war the U.S. military conducted extensive research in audio transmissions using vacuum-tube powered transmitters and receivers.
Google Translate is a web-based free-to-use translation service developed by Google in April 2006. [12] It translates multiple forms of texts and media such as words, phrases and webpages. Originally, Google Translate was released as a statistical machine translation (SMT) service. [12] The input text had to be translated into English first ...
As of Unicode version 16.0, there are 155,063 characters with code points, covering 168 modern and historical scripts, as well as multiple symbol sets.This article includes the 1,062 characters in the Multilingual European Character Set 2 subset, and some additional related characters.
Gardiner's sign list is a list of common Egyptian hieroglyphs compiled by Sir Alan Gardiner. It is considered a standard reference in the study of ancient Egyptian hieroglyphs. Gardiner lists only the common forms of Egyptian hieroglyphs, but he includes extensive subcategories, and also both vertical and horizontal forms for many hieroglyphs.
Samuel Morse (1791–1872), U.S. – early Morse code, see also Morse Code controversy Sergei Ivanovich Mosin (1849–1902), Russia – Mosin–Nagant rifle Motorins , Ivan Feodorovich (1660s–1735) and his son Mikhail Ivanovich (?–1750), Russia – Tsar Bell
Samuel F. B. Morse (1810), telegraph pioneer, inventor of Morse code; ... missionary to the Dakota who helped translate the first Dakota-language Bible [310] History ...