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Cropped shot of student using cheat sheet on math exam, reading written formula on hand while

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Cropped shot of student using cheat sheet on math ...

Optometrist doing sight testing for male patient In clinic. Male ophthalmologist examining patient

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Optometrist doing sight testing for male patient I...

Young tired overworked african american medical worker wearing protective face mask looking to the

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Young tired overworked african american medical wo...

Load test on the Neckar Bridge, aerial view. Due to the unusual design, dimensional checks are

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Load test on the Neckar Bridge, aerial view. Due t...

Load test on the Neckar Bridge, aerial view. Due to the unusual design, dimensional checks are

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Load test on the Neckar Bridge, aerial view. Due t...

Cologne, North Rhine-Westphalia, Germany - Covid rapid test in a car park, at the Medicare test

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Cologne, North Rhine-Westphalia, Germany - Covid r...

Thomas Alva Edison examining his phonograph recording apparatus, digitally edited

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Thomas Alva Edison examining his phonograph record...

Oberhausen, Ruhr area, North Rhine-Westphalia, Germany - Emscher conversion, new Emscher AKE sewer,

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Oberhausen, Ruhr area, North Rhine-Westphalia, Ger...

Cologne, North Rhine-Westphalia, Germany - Covid rapid test at the Medicare test centre, throat

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Cologne, North Rhine-Westphalia, Germany - Covid r...

Load test on the Neckar Bridge, aerial view. Due to the unusual design, dimensional checks are

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Load test on the Neckar Bridge, aerial view. Due t...

Essen, North Rhine-Westphalia, Germany - Corona test centre Grugahalle open for free citizen test,

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Essen, North Rhine-Westphalia, Germany - Corona te...

Düsseldorf, North Rhine-Westphalia, Germany - Düsseldorf Airport, Easter holidaymakers at the

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Düsseldorf, North Rhine-Westphalia, Germany - Düss...

Thomas Alva Edison listening to his disc phonograph, digitally edited

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Thomas Alva Edison listening to his disc phonograp...

Load test on the Neckar Bridge, aerial view. Due to the unusual design, dimensional checks are

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Load test on the Neckar Bridge, aerial view. Due t...

Edison‘s experimental development facility, Thomas Alva Edison, digitally edited according to a

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Edison‘s experimental development facility, Thomas...

Thomas Alva Edison listening to his disc phonograph, digitally edited

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Thomas Alva Edison listening to his disc phonograp...

Cologne, North Rhine-Westphalia, Germany - Covid rapid test at the Medicare test centre, throat

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Cologne, North Rhine-Westphalia, Germany - Covid r...

Thomas Alva Edison with his cylinder phonograph, digitally edited

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Thomas Alva Edison with his cylinder phonograph, d...

Essen, North Rhine-Westphalia, Germany - Corona test centre Grugahalle open for free citizen test,

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Essen, North Rhine-Westphalia, Germany - Corona te...

Thomas Alva Edison listening to his disc phonograph, digitally edited

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Thomas Alva Edison listening to his disc phonograp...

Thomas Alva Edison talking into the business phonograph or ediphone, digitally edited

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Thomas Alva Edison talking into the business phono...

Load test on the Neckar Bridge, aerial view. Due to the unusual design, dimensional checks are

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Load test on the Neckar Bridge, aerial view. Due t...

Test tubes labeled for coronavirus testing placed in a holder on a blue surface

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Test tubes labeled for coronavirus testing placed ...

Essen, North Rhine-Westphalia, Germany - Corona test centre Grugahalle open for free citizen test,

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Essen, North Rhine-Westphalia, Germany - Corona te...

Thomas Alva Edison examining a phonograph disc under a microscope, digitally edited

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Thomas Alva Edison examining a phonograph disc und...

Thomas Edison with his Electric automobile 1910, together with Captain W. Langdon, Bailey Co. test

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Thomas Edison with his Electric automobile 1910, t...

Cologne, North Rhine-Westphalia, Germany - Covid rapid test in a multi-storey car park, at the

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Cologne, North Rhine-Westphalia, Germany - Covid r...

Cologne, North Rhine-Westphalia, Germany - Covid rapid test in a car park, at the Medicare test

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Cologne, North Rhine-Westphalia, Germany - Covid r...

Oberhausen, Ruhr area, North Rhine-Westphalia, Germany - Emscher conversion, new Emscher AKE sewer,

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Oberhausen, Ruhr area, North Rhine-Westphalia, Ger...

Düsseldorf, North Rhine-Westphalia, Germany - Düsseldorf Airport, Easter holidaymakers at the

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Düsseldorf, North Rhine-Westphalia, Germany - Düss...

Witch trial, Water test

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Witch trial, Water test

Multi ethnic university students walking together on brick stairs, engaging in study sessions and

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Multi ethnic university students walking together ...

Young chemistry students wearing lab coats performing experiment using test tubes and other

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Young chemistry students wearing lab coats perform...

A cup with urine, urine sample, urine cup, doctor's surgery, examination, health

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A cup with urine, urine sample, urine cup, doctor'...

Focused student pinning a paper on a bulletin board in a university hallway, with another student

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Focused student pinning a paper on a bulletin boar...

Multi ethnic university students wearing lab coats conducting a chemistry experiment using colorful

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Multi ethnic university students wearing lab coats...

Multi ethnic group of high school students attending a lesson, a girl is raising her hand to ask a

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Multi ethnic group of high school students attendi...

Cheerful university students are actively participating in a class, engaging in discussions and

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Cheerful university students are actively particip...

Happy teacher assisting college students learning and preparing exam in university classroom

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Happy teacher assisting college students learning ...

University students in lab coats conducting a chemistry experiment, using lab equipment and

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University students in lab coats conducting a chem...

Teenage student giving a presentation in a modern classroom with a teacher and diverse group of

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Teenage student giving a presentation in a modern ...

Diverse group of university chemistry students conducting an experiment in a laboratory,

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Diverse group of university chemistry students con...

Young male scientist pouring blue liquid into laboratory glassware while smiling during an

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Young male scientist pouring blue liquid into labo...

University teacher using tablet explaining lesson to two students sitting at desk in classroom

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University teacher using tablet explaining lesson ...

Professor explaining lesson to diverse university students sitting at desk, helping them with their

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Professor explaining lesson to diverse university ...

Stamp with tax office inscription on a share, capital gains tax

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Stamp with tax office inscription on a share, capi...

Female professor engaging students in a lesson within a university classroom, fostering an

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Female professor engaging students in a lesson wit...

Cheerful professor is teaching a lesson to a diverse group of university students in a modern

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Cheerful professor is teaching a lesson to a diver...

Blood collection in hospital, blood donation, blood donor, donate blood, blood values, health

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Blood collection in hospital, blood donation, bloo...

Chemistry teacher showing test tube with chemical reaction to students during experiment in

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Chemistry teacher showing test tube with chemical ...

Multi ethnic university students clapping in classroom after a presentation of a shy student, with

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Multi ethnic university students clapping in class...

University professor pointing at a student raising hand to answer a question during a lesson in

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University professor pointing at a student raising...

Stamp with tax office inscription on a share, capital gains tax

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Stamp with tax office inscription on a share, capi...

Stamp with tax office inscription on a share, capital gains tax

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Stamp with tax office inscription on a share, capi...

Smiling chemistry teacher showing colorful test tubes and beakers while explaining chemical

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Smiling chemistry teacher showing colorful test tu...

Blood collection in hospital, blood donation, blood donor, donate blood, blood values, health

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Blood collection in hospital, blood donation, bloo...

Multi ethnic group of university students attending a chemistry lesson in a laboratory, teacher

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Multi ethnic group of university students attendin...

Rottweil, Thyssenkrupp Elevator test tower for lifts, built 2014-2017, height 232 metres

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Rottweil, Thyssenkrupp Elevator test tower for lif...

Berlin, Central Animal Laboratories of the Free University of Berlin, today a research facility for

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Berlin, Central Animal Laboratories of the Free Un...

Helpers at the test run in the vaccination centre for the corona vaccinations, in a hall at Messe

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Helpers at the test run in the vaccination centre ...

A mini wind power plant in the small Dutch town of Haarlemmermeer supplies the traffic lights at a

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A mini wind power plant in the small Dutch town of...

High-voltage test at the Siemens plant in Drresden

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High-voltage test at the Siemens plant in Drresden

Concept for saving money for gas for heating with piggy bank on radiator with copy space

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Concept for saving money for gas for heating with ...

Scientist in lab medicine research holding vials with blood and virus samples for DNA sequencing,

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Scientist in lab medicine research holding vials w...

Hearth health cardiology concept with display that shows science research for heart diseases, AI

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Hearth health cardiology concept with display that...

Covid-19 rapid test, antigen test, the abrasion of the swab is dissolved in a liquid and applied to

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Covid-19 rapid test, antigen test, the abrasion of...

Agri-photovoltaic test plant, an apple tree plantation with two different systems of PV modules was

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Agri-photovoltaic test plant, an apple tree planta...

Agri-photovoltaic test plant, an apple tree plantation with two different systems of PV modules was

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Agri-photovoltaic test plant, an apple tree planta...

Water pipe leading from farm irrigation lake, Sutton, Suffolk, England, UK

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Water pipe leading from farm irrigation lake, Sutt...

New laboratory automat

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New laboratory automat

Max Planck Institute of Molecular Cell Biology and Genetics

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Max Planck Institute of Molecular Cell Biology and...

High-voltage test at the Siemens plant in Drresden

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High-voltage test at the Siemens plant in Drresden

As a molecular genetic diagnostics company, Biotype GmbH is part of the Molecular Diagnostics Group

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As a molecular genetic diagnostics company, Biotyp...

As a molecular genetic diagnostics company, Biotype GmbH is part of the Molecular Diagnostics Group

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As a molecular genetic diagnostics company, Biotyp...

Tester kit to measure chlorine and ph in swimming pools. Person testing the PH of the pool

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Tester kit to measure chlorine and ph in swimming ...

Plastic protective tubes cover new hedgerow hawthorn plants growing on the edge of a field,

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Plastic protective tubes cover new hedgerow hawtho...

Corona antigen rapid test, lay test, self-test, for the detection of SARS-CoV-2 infection, mother

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Corona antigen rapid test, lay test, self-test, fo...

Overhead aerial view of a drone flying over an industrial warehouse roof covered in solar panels

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Overhead aerial view of a drone flying over an ind...

New laboratory automat

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New laboratory automat

Motorsport Arena Oschersleben, motorsport facility, Oschersleben, Bode, test track, race track,

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Motorsport Arena Oschersleben, motorsport facility...

A few days in front of the opening of the Dresden Striezelmarkt, a lighting test was carried out

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A few days in front of the opening of the Dresden ...

A computer tomograph (CT) is an imaging procedure in radiology, here on 21.11.1995 in Schwerte in a

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A computer tomograph (CT) is an imaging procedure ...

Hospital reform put to the test. The Federal Minister of Health visits a hospital in

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Hospital reform put to the test. The Federal Minis...

An alchemist and a woman in elaborate clothing stand in a medieval laboratory, surrounded by

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An alchemist and a woman in elaborate clothing sta...

Max Planck Institute of Molecular Cell Biology and Genetics

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Max Planck Institute of Molecular Cell Biology and...

SupraTransII driving test facility

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SupraTransII driving test facility

Smart Poles, intelligent street lamps, test run, EON and the city of Essen are testing street lamps

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Smart Poles, intelligent street lamps, test run, E...

Corona antigen rapid test, lay test, self-test, for the detection of SARS-CoV-2 infection, nasal

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Corona antigen rapid test, lay test, self-test, fo...

Christmas with us with Kim Fisher, dress rehearsal, Thomas Anders

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Christmas with us with Kim Fisher, dress rehearsal...

Experiment with the charged Leyden bottle, Leiden bottle, also Kleist bottle, condensation bottle

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Experiment with the charged Leyden bottle, Leiden ...

Christmas market in the city centre, Königsstrasse, during the fourth Corona wave, 2G regulation,

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Christmas market in the city centre, Königsstrasse...

Agri-photovoltaic test plant, an apple tree plantation with two different systems of PV modules was

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Agri-photovoltaic test plant, an apple tree planta...

Symbolic image of service charge statement, heating cost statement, rental costs, list of

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Symbolic image of service charge statement, heatin...

At the Heath Wood

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At the Heath Wood

Long lines of irrigation hose pipes laid out on the ground, Shottisham, Suffolk, England, UK

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Long lines of irrigation hose pipes laid out on th...

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Company flags with logo Bibendum figure flying out...

Top view of dentist doing cleaning to female patient lying down. Dentist doctor examining mouth to

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Top view of dentist doing cleaning to female patie...

Female patient checking teeth after curing teeth in dental clinic. Dentist with satisfied patient

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Female patient checking teeth after curing teeth i...

Large model motorcycle made from steel tubing, Calne, Wiltshire, England, UK

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Large model motorcycle made from steel tubing, Cal...

Solar park on the Slaperdijk dyke near the Eemshaven, test project, 17, 000 solar modules were

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Solar park on the Slaperdijk dyke near the Eemshav...

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