History of electricity

82 inventos por año: de qué evolucionó cada uno y a qué llevó.

Cómo se conectan los inventos

AñoInventoQué esEvolucionó deLlevó a
1745Condensador
Ewald Georg von Kleist, Питер ван Мушенбрук
Stores electric charge.Botella de Leyden
1745Botella de Leyden
Ewald Georg von Kleist
The first capacitor.Condensador
1800Pila voltaicaThe first chemical source of direct current.Batería de plomo-ácido, Pila seca, Electrólisis
1802Lámpara de arcoLight from an electric arc between carbons (Petrov, Davy, c. 1802); the “Yablochkov candle” (1876) made it street lighting.
1820Cable de cobreA conductor made of copper.
1824Electroimán
William Sturgeon
A core with a winding that is magnetized by current (Sturgeon).
1831Inductor
Michael Faraday
A wire wound into a coil; stores energy in a magnetic field.
1834Motor eléctricoA machine that turns electrical energy into rotation. Moritz von Jacobi built a practical motor.
1835ReléA switch operated by an electromagnet (Henry).Controlador lógico programable
1840AislanteA non-conducting part that holds a wire.
1841Potenciómetro
Johann Christian Poggendorff
A variable resistor with a sliding contact.
1843Reóstato
Johann Christian Poggendorff
A resistor with a slider: move the slider and the resistance and current in the circuit change.
1850ResistenciaA component with a set resistance.
1859Batería de plomo-ácidoThe first rechargeable battery (Gaston Planté).Pila voltaicaBatería de iones de litio
1866Generador eléctricoA machine that turns rotation into electric current.
1873FotorresistenciaA light-sensitive resistor (selenium, Smith).
1874RectificadorConverts alternating current into direct current.
1879Bombilla incandescente
Thomas Edison, Joseph Swan
Light from a filament heated by current. Lodygin, Swan and Edison worked on it.Lámpara de aceite, Lámpara de gasLámpara LED
1879Sensor HallMeasures a magnetic field using the Hall effect; the compass in a smartphone.
1882AmperímetroMeasures electric current; it is connected in series.GalvanómetroMultímetro
1882VoltímetroMeasures the voltage between two points of a circuit; it is connected in parallel.GalvanómetroMultímetro
1885Transformador
Michael Faraday
Converts the voltage of alternating current (Yablochkov, Gaulard–Gibbs, ZBD).
1886Pila secaA battery with a paste electrolyte (Gassner).Pila voltaicaPila alcalina
1888Motor de inducción
Mikhail Dolivo-Dobrovolsky
A motor with a rotating magnetic field (Tesla, Dolivo-Dobrovolsky).
1889Contador eléctricoA device for metering electricity.Contador inteligente
1889Sistema trifásico
Nikola Tesla, Mikhail Dolivo-Dobrovolsky
A system of three currents shifted in phase (Dolivo-Dobrovolsky).
1890Motor en bujeAn electric motor built into a wheel hub.
1890FusibleA conductor that burns out when the current is too high.
1891Bobina de Tesla
Nikola Tesla
A resonant high-voltage transformer.
1896Condensador electrolítico
Karol Pollak
A high-capacitance capacitor with an oxide layer (Pollak).
1897Tubo de rayos catódicosA picture tube in which an electron beam draws the image (Braun).Electrón
1904Tubo de vacíoA device that controls a flow of electrons in a vacuum; the basis of the first computers.Transistor, Diodo
1904Diodo
Jagadish Chandra Bose
Lets current pass in one direction.Tubo de vacíoTriodo, Tiristor
1906AmplificadorIncreases the power of a signal.
1906Triodo
Lee de Forest, Robert von Lieben
A tube with an amplifying grid (Lee de Forest).Diodo
1910Letrero de neónA gas-discharge tube (Claude).
1912OsciladorA circuit that produces a periodic signal.
1920MultímetroMeasures voltage, current and resistance.Galvanómetro, Voltímetro, Amperímetro
1921SoldadorAn electric tool for soldering (Ersa).
1924Interruptor automáticoCuts off the circuit when it is overloaded.
1925InversorConverts direct current into alternating current.
1927Reloj de cuarzoA clock paced by the vibrations of a quartz crystal.Reloj de péndulo, Reloj mecánicoReloj atómico
1930Termistor
Michael Faraday
A resistor whose resistance depends on temperature.
1930VaristorA resistor that protects against voltage surges.
1936Placa de circuito impresoA board with conductors laid on an insulator (Eisler).
1938Lámpara fluorescenteA gas-discharge lamp with a phosphor.
1940ServomotorA motor with position feedback.
1940Magnetrón
University of Birmingham
A microwave generator; the key part of radars and microwave ovens.
1940Condensador cerámicoA capacitor with a ceramic dielectric.
1941Amplificador operacionalA general-purpose differential amplifier.
1947TransistorA semiconductor device for amplifying and switching signals.Tubo de vacío
1947Transistor de contacto puntualBardeen and Brattain’s first transistor.Transistor bipolar
1948Transistor bipolarA transistor with two p–n junctions (Shockley).Transistor de contacto puntual
1950FotodiodoA diode that turns light into current.
1950Convertidor analógico-digitalTurns an analogue signal into numbers.
1950Disipador de calorA metal heat spreader with fins.
1950Diodo ZenerA diode for stabilizing voltage (the Zener effect).
1956TiristorA controllable high-power semiconductor switch.Diodo
1957SupercondensadorA capacitor of huge capacitance for storing energy quickly.
1959MOSFET
Martin “John” M. Atalla, Dawon Kahng
A field-effect transistor with an insulated gate (Atalla, Kahng).
1959Pila alcalinaA zinc–manganese cell with an alkaline electrolyte (Urry).Pila seca
1959Lámpara halógenaAn incandescent lamp with a halogen cycle.
1960Fuente de alimentaciónConverts mains voltage for electronics.
1960Sistema de alimentación ininterrumpidaBattery power when the mains fails.
1960Montaje superficialMounting components on the surface of the board.
1962LED
H. J. Round, Oleg Losev
A semiconductor diode that emits light (Holonyak; Losev observed it in the 1920s).
1962Diodo láserA semiconductor laser.
1970Fuente conmutadaA compact power supply based on high-frequency conversion.
1971Placa de pruebasA board for building circuits without soldering.
1980Soldadura por reflujoSoldering with solder paste in an oven.
1982IGBTA power transistor for inverters and electric drives.
1989Batería de níquel-hidruroA rechargeable cell; used in the first hybrids.
1990Motor de vibraciónA tiny electric motor with an eccentric weight that vibrates as it spins.
1991Batería de iones de litioA rechargeable battery in which lithium ions move between the electrodes.Batería de plomo-ácidoBatería de estado sólido
1993LED azul
H. J. Round, Oleg Losev
A gallium nitride LED (Nakamura) that opened the way to white light.
2001Batería externaA portable battery for charging gadgets.
2008Carga inalámbricaCharging by induction (the Qi standard).
2020Batería de estado sólidoA lithium battery with a solid electrolyte (in development).Batería de iones de litio
ElectrolitoThe medium through which ions move between the electrodes.
ÁnodoThe electrode that lithium ions enter during charging.
CátodoThe electrode that supplies lithium ions, e.g. LiCoO₂.
SeparadorA porous film that keeps the electrodes from shorting.

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