Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange...

Wireless telegraphy or radiotelegraphy is transmission of text messages by radio waves, analogous to electrical telegraphy using cables. Before about...

Electrical telegraphy is a point-to-point text messaging system, primarily used from the 1840s until the late 20th century. It was the first electrical...

"in recognition of their contributions to the development of wireless telegraphy". His work laid the foundation for the development of radio, television...

Morse, one of the early developers of the system adopted for electrical telegraphy. International Morse code encodes the 26 basic Latin letters A to Z, one...

submarine communications cables were laid beginning in the 1850s and carried telegraphy traffic, establishing the first instant telecommunications links between...

Mass media Mobile phone Smartphone Optical telecommunication Optical telegraphy Pager Photophone Prepaid mobile phone Radio Radiotelephone Satellite communications...

April 1872 William Henry Ward received U.S. patent 126,356 for a wireless telegraphy system where he theorized that convection currents in the atmosphere could...

Aerial telegraphy may refer to: Wigwag (flag signals), signalling by hand with a single flag Optical telegraphy, chains of fixed telegraph stations using...

to wireless telegraphy. The Wireless Telegraphy Acts are laws regulating radio communications in the United Kingdom. Wireless telegraphy as a concept...

and arrive in a matter of minutes to hours, instead of days or weeks. Telegraphy facilitated faster and more profitable freight and passenger railway traffic...

code in a telegraphy system. Keys are used in all forms of electrical telegraph systems, including landline (also called wire) telegraphy and radio (also...

inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting. In...

Women in telegraphy have been evident since the 1840s. The introduction of practical systems of telegraphy in the 1840s led to the creation of a new occupational...

The Wireless Telegraphy Act 1926 is an act of the Oireachtas which regulates wireless telegraphy in the Republic of Ireland. It is the legislation that...

Acoustic telegraphy (also known as harmonic telegraphy) was a name for various methods of multiplexing (transmitting more than one) telegraph messages...

lights, flags, sunlight, and moving arms. Semaphores can be used for telegraphy when arranged in visually connected networks, or for traffic signalling...

In amateur radio, high-speed telegraphy (HST) is a form of radiosport that challenges amateur radio operators to accurately receive and copy, and in some...

co-developer of Morse code in 1837 and helped to develop the commercial use of telegraphy. Samuel F. B. Morse was born in Charlestown, Massachusetts, the first...

are also called, "Chappe telegraphs" or "Napoleonic semaphore". Optical telegraphy dates from ancient times, in the form of hydraulic telegraphs, torches...

Crippen. He was the first criminal to be captured with the aid of wireless telegraphy. Hawley Crippen was born in Coldwater, Michigan, the only surviving child...

The use of wireless telegraphy in the Italo-Turkish war was the first example of its large-scale military application, its origins dating from the end...

By Wireless Telegraphy was a 1910 Australian play by William Anderson and Roy Redgrave. The play was based on the case of Hawley Harvey Crippen who was...

The timeline of North American telegraphy is a chronology of notable events in the history of the electric telegraphy in the United States and Canada,...

174,465". pdfpiw.uspto.gov.—Telegraphy (Bell's first telephone patent)—Alexander Graham Bell US 186,787—Electric Telegraphy (permanent magnet receiver)—Alexander...

advantage for visual recognition. Radio (initially known as "wireless telegraphy") was developed in the late 1890s, and was quickly recognized as an important...

services, known as CCIF (as the French acronym) and with long-distance telegraphy CCIT (Comité Consultatif International des Communications Téléphoniques...

first three decades of radio, from 1888 to 1918, called the wireless telegraphy or "spark" era, primitive radio transmitters called spark gap transmitters...

magnets to produce alternating current from a rotating armature. In early telegraphy, magnetos were used to power instruments, while in telephony they were...

Guglielmo Marconi "for their contributions to the development of wireless telegraphy", was a founder of Telefunken, one of the pioneering communications and...