Search results
Results From The WOW.Com Content Network
Fig. 1: Signaling with a Mance heliograph; Alaska-Canada border, 1910. A heliograph (from Ancient Greek ἥλιος (hḗlios) 'sun' and γράφειν (gráphein) 'to write') is a solar telegraph [1] system that signals by flashes of sunlight (generally using Morse code) reflected by a mirror. The flashes are produced by momentarily pivoting ...
This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur [2] Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. [3][4] Morse code is named after Samuel Morse, one of the early developers ...
Prosigns for Morse code. Procedural signs or prosigns are shorthand signals used in Morse code telegraphy, for the purpose of simplifying and standardizing procedural protocols for landline and radio communication. The procedural signs are distinct from conventional Morse code abbreviations, which consist mainly of brevity codes that convey ...
Morse code mnemonics are systems to represent the sound of Morse characters in a way intended to be easy to remember. Since every one of these mnemonics requires a two-step mental translation between sound and character, none of these systems are useful for using manual Morse at practical speeds. Amateur radio clubs can provide resources to ...
Morse code abbreviations are used to speed up Morse communications by foreshortening textual words and phrases. Morse abbreviations are short forms, representing normal textual words and phrases formed from some (fewer) characters taken from the word or phrase being abbreviated. Many are typical English abbreviations, or short acronyms for ...
Kalpana Chawla (17 March 1962 – 1 February 2003) [2] was an Indian-born American astronaut and aerospace engineer who was the first woman of Indian origin to fly to space. [3][4] She first flew on Space Shuttle Columbia in 1997 as a mission specialist and primary robotic arm operator aboard STS-87. [5]
Cimon or officially CIMON (C rew I nteractive Mo bile companio n) is a head-shaped AI robot used in the International Space Station. The device is "an AI-based assistant for astronauts" developed by Airbus and IBM, with funding from the German Aerospace Center. [1] The device is modelled after the character of Professor Simon Wright, "the ...
December 1973. Charles " Pete " Conrad Jr. (June 2, 1930 – July 8, 1999) was an American NASA astronaut, aeronautical engineer, naval officer, aviator, and test pilot who commanded the Apollo 12 space mission, on which he became the third person to walk on the Moon. Conrad was selected for NASA's second astronaut class in 1962.