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In general, '''detection''' is the action of accessing information without specific cooperation from with the sender. ..., but it may also involve filtering a faint signal from [[noise]], as in [[radio astronomy]], or reconstructing a hidden signal, as in [[steganography]]. ...

[[File:Clockwork Radio.JPG|thumb|A modern [[clockwork radio]] with crank in winding position]] ...atteryless radio''' is a [[radio receiver]] which does not require the use of a [[battery (electricity)|battery]] to provide it with electrical power. ...

[[Image:World map of submarine cables.png|300px|thumb|Global [[submarine communications cable|su ...mail]] and unidirectional communication networks, such as [[radio network|radio]] and [[television network|television]], are described elsewhere. ...

...p.jpg|thumb|Static wicks on the [[Wingtip device|winglet]] and [[aileron]] of an [[EasyJet]] [[Airbus A319-100]]]] ...url=https://jalopnik.com/this-is-what-those-skinny-metal-rods-sticking-off-of-a-1848436120|access-date=2022-01-29|website=Jalopnik|language=en-us}}</ref> ...

...method, device, or phenomenon, have fallen into disuse due to the advance of [[science]] and [[technology]]. Such [[archaism]] is inevitable where conti ...t they used. Some of these terms were initially widely used, then fell out of the common vernacular. Others failed to "catch on" and never entered common ...

{{Short description|1=Overview of and topical guide to communication}} part of the set of 830+ outlines listed at ...

{{Short description|Discrete unit of communication}} ...[[communication source|source]] for consumption by some recipient or group of recipients. A message may be delivered by various means, including [[couri ...

...r=Brown University|accessdate=November 15, 2022|title=X-Ray Reconstruction of Moving Morphology (XROMM) Facility}}</ref> In XROMM, radio-opaque bone markers are implanted inside a living organism, which allows th ...

...ial debate]] between [[John F. Kennedy]] and [[Richard Nixon]] had a panel of four moderators.]] ...icipants to time limits and tries to keep them from straying off the topic of the questions being raised in the debate. Sometimes moderators may ask que ...

{{short description|List of specific models of radios}} ...tte (radio)|Superette]] [[Superheterodyne receiver|superheterodyne]] table radio]] ...

...ple, the purpose of the engine-check light commonly found on the dashboard of motor vehicles is to indicate whether or not there is a fault with the engi ...the device is used in [[electric power distribution]] networks as a means of automatically detecting and identifying [[Fault (power engineering)|faults] ...

...[:Category:Spacecraft propulsion|in-space propulsion]]; and a wide variety of [[:Category:Spaceflight technology|other technologies including support inf ...cture]]. Of the sciences, [[Outline of astronomy|astronomy]] and [[Outline of earth science|Earth science]] benefit from space technology.<ref>{{Cite web ...

...e most ubiquitous and important technologies. This detail of the "Standard of Ur", c. 2500 BCE., displays a Sumerian [[chariot]]]] {{/box-footer|[[Outline of technology]]}} ...

...il|300px|The smartphone – one of the most important means of communication of the 21st century]] '''Means of communication''' are used by people to communicate and exchange information ...

...ion|Standards and procedures intended to protect from the damaging effects of electricity}} '''Electrical safety''' is a system of organizational measures and technical means to prevent harmful and dangerou ...

This is a '''list of interstellar radio messages''' (IRMs) transmitted from Earth. == Classification of interstellar radio messages == ...

{{Short description|Formulas to determine the energy balance of a nonlinear wave}} ...]s developed originally for [[electrical engineer]]s to predict the amount of [[energy]] in a wave that has multiple frequencies. They have since been fo ...

{{Short description|Type of power supply}} [[File:Rca-x551.jpg|thumb|So-called "All American Five" vacuum tube radio receivers used a power supply that could work on either AC or DC]] ...

{{Short description|Branch of optics}} ...m noise]] in [[optical communication]], which is studied in the sub-branch of [[coherence theory (optics)|coherence theory]]. ...

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