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...hes, and small organizations, where revolutionarily economical copying was in demand for the production of newsletters and worksheets. Self-publishers a ...phs were not practical for most office purposes and were never widely used in businesses. Hawkins & Peale lost money producing polygraphs. The problem wa ...

...|Introduction of competing electric power transmission systems in the late 1880s and early 1890s}}{{about|the battle between electrical distribution methods ...an [[Thomas Edison]] established the first investor-owned electric utility in 1882, basing its infrastructure on DC power. ...

...idge, Massachusetts |page=66 |language=En |chapter=IV. Structure and Style in News Stories |access-date=January 28, 2024}}</ref> In modern times, journalism students are still taught that these are the funda ...

...isher = CRC Press }}</ref><ref>In this article, the term "voltage" is used in the everyday sense, i.e. what a [[voltmeter]] measures. This is actually th ...charge tends is usually constant throughout a pyroelectric material, but, in some materials, this direction can be changed by a nearby electric field. T ...

|caption = A German [[railway]] in [[1895]] ...setaste.jpg|thumb|250px|A [[telegraph key]] used to transmit text messages in [[Morse code]]]] ...

'''Electrification''' is the process of powering by [[electricity]] and, in many contexts, the introduction of such power by changing over from an earl ...eloped country|developed]] countries from the mid-1880s until around 1950. In the context of [[sustainable energy]], electrification refers to the build- ...

...'''MIG''') and '''metal active gas''' ('''MAG''') is a [[welding]] process in which an [[electric arc]] forms between a consumable MIG [[wire]] [[electro ...g current]], can be used. There are four primary methods of metal transfer in GMAW, called globular, short-circuiting, spray, and pulsed-spray, each of w ...

...base made of [[ceramic]], metal, glass, or plastic, which secures the lamp in the socket of a [[light fixture]], which is often called a "lamp" as well. ...lamp]]s, which produce light by a flow of electrons across a [[band gap]] in a [[semiconductor]]. ...

...r]] from sources of [[primary energy]]. For [[electric utility|utilities]] in the [[electric power industry]], it is the stage prior to its [[Electricity ...but it's a general physical concept, and I see no reason to pump their IPO in specific terms --> ...

[[File:Alter Strom.jpg|thumb|The Alter Strom, in the sea resort of [[Warnemünde]], Germany]] [[File:IMG RoyalCanalnrKinnegad5706w.jpg|thumb|The [[Royal Canal]] in [[Republic of Ireland|Ireland]]]] ...

...ccessful demonstration of [[nitrous oxide]] anesthesia by [[Horace Wells]] in the same theater the previous year, which was ended by cries of "Humbug!" a ...veloped as a way to restore an imbalance in the ''qi'', or the life force. In Ancient Greece, medical maladies were often attributed to divine influences ...

...' (DC), which flows only in one direction. Alternating current is the form in which [[electric power]] is delivered to businesses and residences, and it .... These currents typically alternate at higher frequencies than those used in power transmission. ...

{{Short description|Application of science to criminal and civil laws}} {{Forensic science|all}} ...

| employment_field = [[Technology]], [[science]], [[space exploration|exploration]], [[military]], [[Industry (manufacturi ...nics]], and [[electromagnetism]]. It emerged as an identifiable occupation in the latter half of the 19th century after the [[commercialization]] of the ...

|caption1=[[Rooftop solar power|Rooftop solar]] in [[Hong Kong]] ...ion]] in the foreground, with the [[PS10]] and [[PS20]] solar power towers in the background ...

...''History of Technology'' (book series)|the academic discipline|History of science and technology}} ...eviously reach, and by [[scientific instrument]]s by which we study nature in more detail than our natural senses allow. ...

...tatic) electric fields, were discovered and studied independently from the 1880s to 1930s. When field emission is used without qualifiers it typically means Field emission in pure metals occurs in high [[electric fields]]: the gradients are typically higher than 1 gigavol ...

...f man: a popular and practical treatise on the applications of electricity in modern life]. London: Cassell &.</ref> Scientific understanding into the na ...ge]], whereas that for [[magnetic field]] is [[electric current]] (charges in motion). ...

...f the head and rest in front of the ear canal, leaving the ear canal open. In the context of [[telecommunication]], a [[Headset (audio)|headset]] is a co ...Bluetooth]], [[DECT]] or [[FM radio]]. The first headphones were developed in the late 19th century for use by [[Switchboard operator|telephone operators ...

{{redirect|Power lines|power lines in general|Overhead power line}} A [[wide area synchronous grid]], known as an ''interconnection'' in North America, directly connects generators delivering AC power with the sa ...