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Mercury thermometer, 19th century

Infrared ear thermometer, illustration

電子体温計

体温計

看護士

電子体温計

体温計

体温計

体温計

体温計

体温計

体温計

デジタル体温計

Thermometer calibration, 19th century

Maximum-minimum thermometer, 19th century

デジタル体温計

デジタル体温計　輪郭線あり

Richard anemometer, 19th century

Thermal expansion measurement, 19th century

体温を測る男性

体温を測る男性

体温計を見る男性

Gas pressure experiment, 19th century

熱のある子ども

Liquid air experiments, 19th century

Gravitational law demonstration, 19th century

Illustration of collection medical tools isolated on white background - vector

体温計

High-precision mass balance, 19th century

19th century thermometer

Edison's incandescent light bulb, 19th century

Ammeter and shunt, 19th century

Ammeter and recorder, 19th century

Voltmeter recorder, 19th century

Electricity meter, 19th century

Measuring electrostatic attraction, 19th century

Measuring electrostatic repulsion, 19th century

Lippmann electrometer, 19th century

Spectrum of light experiment, 19th century

Kirchhoff-Bunsen spectroscope, 19th century

Spectral analysis, 19th century

Thomson galvanometer, 1850s

Pellat electrodynamometer, 19th century

Thomson quadrant electrometer, 19th century

Scientific equipment, historical artwork

Scientific equipment, historical artwork

Timer meter, historical artwork

Gas engine piston, illustration

Hercule-Progres turbine, illustration

Ader telephone station, 19th century

Gramme arc lamp regulator, 19th century

Batteries connected in series

Decade resistance box, 19th century

Gramme dynamo armature, 1870s

Geissler tube, 1850s

Tesla high-frequency condenser, 1890s

Edison's phonograph, 19th century

Edison's first phonograph, 1877

Solenoid demonstration, 19th century

Foucault interrupter, 19th century

Ruhmkorff coil, 19th century

Moissan furnace, 19th century

Ball lightning on a church spire, 1850

体温測定 高齢者　シニア男性

体温測定 高齢者　シニア男性

体温測定 高齢者　シニア男性

体温測定 高齢者　シニア男性

体温測定　高齢者　シニア女性

体温測定 高齢者　シニア女性

体温測定 高齢者　シニア女性

体温測定　若い男性

体温測定　若い男性

体温測定　若い男性

体温測定　若い女性

体温測定　若い女性

体温を測っている男性

体温を測っている男性

icon

First aid kit equipment, artwork

Compound spectroscope, 19th century illustration

19th Century floating lighthouse, UK, illustration

19th Century hearing aid, illustration

Gasification unit, illustration

風邪

風邪

Bunsen battery, 1840s

Submarine telegraph cable, 19th century

Meylan-d'Arsonval voltmeter, 1900s

Thermal voltmeter, 1900s

Ariane 3 rocket, illustration

Ariane 3 rocket, illustration

Telescopes, 1807

Electricity experiments, 1807

Hauksbee electrostatic generator, 1709

Holtz electrostatic generator, 1865

Lightning rods, 19th century

Volta's 'Crown of Cups' battery, 1800

Electromagnetic needle effect, 1820

Chromic acid battery, 19th century

Camacho cascade battery, 1870s

Plante accumulator battery, 1859

Heinz lead-acid battery, 19th century

Thomson galvanometer, 1850s

Deprez-d'Arsonval galvanometer, 1882

Ohmmeter, 19th century

Meritens magneto generator, 1870s

Gramme dynamo, 1870s

Gramme dynamo, 1870s

Siemens dynamo, 19th century

Multipolar dynamo, 1900s

Siemens dynamo, 1900s

Electrical generators, 1900s

Electric spark displays, 1850s

Electricity transformer, 1900s

Mechanical colour test, 19th century

Liquid air experiments, 19th century

Berthelot and thermodynamics, 19th century

Phonautograph, 19th century

Phonograph piano recordings, 19th century

Newton's cradle, 19th century

Huygens's experiments on elasticity, 1650s

Magnetic induction demonstration, 19th century

Daniell cell, 19th century

Ampere and Arago on electromagnetism, 1820

Electromagnetism demonstration, 19th century

Optical communications, 19th century

Foucault telescope, 19th century

Newtonian telescope, 19th century

Lick Observatory telescope, 19th century

Lick Observatory telescope, 19th century

Microscopy observations, 19th century

Berthelot and thermodynamics, 19th century

Nollet's electrostatic generator, 18th century

Holtz electrostatic induction generator, 19th century

Wimshurst electrostatic generator, 19th century

Designs of Leyden jars, 19th century

Joule's heat-equivalence experiment, 1840s

Large storage battery, 19th century

Gramme dynamo, 19th century

Zipernowsky transformer, 19th century

Hughes's printing telegraph, 1850s

Hertz's electromagnetism experiments, 1880s

Clamond electroplating thermopile, 1874

Gas liquefaction machine, 19th century

Lightning arrester, 1900s

Lightning arrester, 1900s

Carbon electric arc lamp, 1800s

Lighthouse electric light, 19th century

Large storage battery, 19th century

Gramme dynamo, 1870s

Optics experiment, historical artwork

Optics experiment, historical artwork

Telescopes, historical artwork

Microscopes, historical artwork

Herschel's infrared light discovery, 1800

Herschel's infrared light discovery, 1800

Herschel's infrared light discovery, 1800

Electric kettle, 19th century

Static electricity experiment, 19th century

Standard ampere, 1900s

Improvement of Franklin's Electrical Kite

Magnetic dip angle measurement, 1600

Bonelli telegraph, 19th century

Technical drawing devices, 19th century

18th Century camera obscura, artwork

Dishwashing machine, 19th century

Thermometer Vector Icon in Flat Style Design. Thermometer vector icon in flat style. Medical instruments initial diagnosis. Illustration for application button pictograms, infogpaphics elements, logo, web design. Isolated on white background

Early electric telegraph machine, 19th Century illustration

寒波

Stenotelegraph, 19th century

Gold miners, 19th Century illustration

19th Century match factory, illustration

19th Century match factory, illustration

19th Century match factory, illustration

17th Century playing cards factory

Baudot telegraph system, illustration

Beer brewing industry, 19th century

Beer brewing industry, 19th century

19th Century radiography

Eiffel Tower's searchlights, 1889

Optics of a biconvex lens, 19th century

Dual-Brabant plough, 19th century

19th Century lighthouse, historic artwork

chain, gear, pin, liver,thermometer, like, heat, icon, vector, design, flat, collection, style, creative, icons

Early electric engine, 19th Century illustration

Marie Leczinska, Queen of France

大寒

Historical Arabic water clock

19th Century salmon fisher, illustration

体温計

Mercury orbit hypotheses, 19th century

Marie Curie, conceptual illustration

Catoptical machines, 19th century illustration

Soap bubbles in air, 19th artwork

19th Century electricity demonstration

Hans Orsted experimenting, 1820 artwork

Wollaston battery pile, 1810s

19th C singer using pneumograph, illustration

19th Century music recording, illustration

Early 19th Century headphones, illustration