Early in 1889, Oliver Heaviside had shown from Maxwell's equations that the electric field surrounding a spherical distribution of charge should cease to have spherical symmetry once the charge is in motion relative to the ether.

Early electric trains ran on batteries because few homes in the late 19th century and early 20th century had electricity.

Early experiments allowed two separate messages to travel in opposite directions simultaneously, first using an electric battery at both ends, then at only one end.

Early in 1989 he formed his Sexteto, his last ensemble, with two bandoneons, piano, electric guitar, bass and cello.

Early electric vacuum cleaner by Electric Suction Sweeper Company, circa 1908

Early electric power systems, such as those installed by George Westinghouse and Thomas Edison, prior to the turn of the century were isolated central stations which served small pockets of customers independently of each other.

Early electric rail trains traveled along Interurban Avenue in Tukwila, connecting to Renton and a line to Tacoma.

Early in the 21st century Transport for London ( TFL ) planned to reintroduce an electric tram line along the Uxbridge Road ( the West London Tram scheme ), but this was abandoned in August 2007 in the face of fierce local opposition and a switch in priorities and funding to Crossrail.

Early electric tram at the northern end of the second permanent Victoria Bridge, c. 1906

Early petrol / gasoline-powered motor cars, before the advent of electric ignition, were ignited by ' hot tubes ' in the cylinder head which had to be pre-heated before the engine would start.

Early Fender amps labeled tremolo as " vibrato " and labeled the vibrato arm of the Stratocaster guitar as a " tremolo bar " ( see vibrato unit, electric guitar, and tremolo ).

Early in the 20th century the PRR tried electric power for its trains.

Early science fiction film often showed raygun beams making bright light and loud noise like lightning or large electric arcs.

Early AC systems used series-connected power distribution systems, with the inherent flaw that turning off a single lamp ( or the disconnection of other electric device ) affected the voltage supplied to all others on the same circuit.

Early stages for silent movies were built, either as a three-wall open-roof set, or with large skylights, until electric lighting became powerful enough to expose film adequately.

Early devices were based on an electromechanical system identical to an electric bell without the metal gong.

Early submarines used a direct mechanical connection between the engine and propeller, switching between diesel engines for surface running, and electric motors for submerged propulsion.

Early electric Christmas lights were introduced with electrification, beginning in the 1880s.

Early electric key fobs operated using infrared and required a clear line-of-sight to function.

Early albums featured electric double-guitar leads reminiscent of the Allman Brothers Band.

Early suburbs were served by horsecars, but by the late 19th century cable cars and electric streetcars, or trams, were used, allowing residences to be built further away from the urban core of a city.

Early EUBs used magnetic pickups similar to those in electric guitars, or percussive magnetic diaghram pickups ( e. g., the Ampeg Baby Bass ).

Early Ganz turbogenerators in a power plant for electric railways, 1906

Early ( 1895 ) flat pantograph on a Baltimore Belt Line | Baltimore & Ohio Railroad electric locomotive.

Early recorded examples of free-form improvisation include solo guitar works by the French guitarist Django Reinhardt and a pair of 1949 recordings for Capitol by a group led by Lennie Tristano, " Intuition " and " Digression ".

Early Davie Allan & the Arrows tracks were stereotypical instrumental surf numbers, with clear-as-a-bell guitar sounds and light, crisp drum work.

Early on, the band began by playing the Consumers songs that Cutler had written, with lyrics changed to fit Cancer's singing style, before concentrating on composing new material like " Black Cross " ( issued as their first single, featuring Pat Smear of The Germs on guitar ) and a fast-paced punk song called " Party Time " ( which was later slowed down and reworked on their 1983 debut album and sole studio release, Sleep in Safety.

Early in his career he played a Harmony Meteor, a cheap hollow-body guitar, but quickly started playing a Gibson Les Paul with The Bluesbreakers and Green's guitar was often referred to as his " magic guitar ".

Early in his career he also played violin, guitar and trumpet.

Early members included bandleader Joe Hunter and Earl Van Dyke ( piano ); James Jamerson ( bass guitar ); Benny " Papa Zita " Benjamin and Richard " Pistol " Allen ( drums ); Paul Riser ( trombone ); Robert White, Eddie Willis, and Joe Messina ( guitar ); Jack Ashford ( tambourine, percussion, vibraphone, marimba ); Jack Brokensha ( vibraphone, marimba ); and Eddie " Bongo " Brown ( percussion ).

Early in their career, the band was known for fast, hard music based in heavily distorted guitars, prominent lead guitar lines, and frequent changes in complex time signatures.

Early Genesis recordings often featured simultaneous 12 string guitar and Dewtron " Mister Bassman " bass pedal synthesiser playing by Rutherford.

Early American alternative rock bands like Sonic Youth and Dinosaur Jr., who mixed rock song structures with guitar distortion, were immediate forerunners.

Early models have a large, D-shaped soundhole ( the " grande bouche ", or " big mouth "), which was shaped specifically to accommodate an internal resonator invented by luthier Mario Maccaferri-this was designed to increase the volume of the guitar and to even out variations in volume and tone between different strings.

Early during her performance, her microphone failed, leaving Etheridge to play her guitar without singing while an alternate mic was found.

Early in electric guitar history, Chet Atkins favored the Bigsby unit, and it can be heard – occasionally – being tastefully used by him in a number of his recordings.

* Early pedal guitar design-1976

Early quartets were typically either a cappella or accompanied only by piano or guitar, and in some cases a piano and banjo.

Early copies came packed with a free Zakk Wylde guitar pick.

Early Line 6 products used digital modeling to emulate the signature tone of a guitar amp / speaker combination.

Early in his career with King's X, Tabor's guitar sound was considered one of the most sought-after in rock.

The B-side of the single, " Early 1970 ", featured Starr on acoustic guitar, piano, drums, and vocals, with Harrison playing guitar, bass, and backing vocals.