109,873 Free Images of Useful

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light waves and their uses

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light waves and their uses

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light waves and their uses

Michelson Light waves and their uses plate II

light waves and their uses

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light waves and their uses

Man properly tending his garden. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

agriculture garden

Woman opening windows to ventilate the room. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

African dwarf frog, Hymenochirus boettgeri. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

amphibian animals

Photomicrograph of a human blood smear. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Photomicrograph of Giemsa stained lung tissue. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

bacteria science

A photomicrograph of Candida albicans fungal spores. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

bacteria science

The process of demonstrating how to properly secure a face mask. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A technician testing possible sites of transmission. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

islamic control

3D print of a SARS-CoV-2—also known as 2019-nCoV. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Bamboo

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US marine aiming a gun

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Michelson Light waves and their uses plate I

light waves and their uses

Us business support

Viewing tower on the US Side as seen from Niagara Falls, Ontario, Canada

U.S. Air Force tactical air control party airmen

The Rose Garden of the White House is seen covered in snow

Hikers at Kodiak National Wildlife Refuge

landscape grass

Portrait of Catherine Grey, Lady Manners, Thomas Lawrence, 1794

female portrait paintings by thomas lawrence romanticism

A Petri dish culture plate, which had contained a growth medium of sheep blood agar (SBA), and which was inoculated with Gram–positive, Burkholderia pseudomallei bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A medical illustration of drug–resistant, Neisseria gonorrhoeae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A female, Aedes aegypti mosquito obtaining a blood meal from a human host. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A 100X photomicrograph magnification of a malachite green spore stained sample, revealed the presence of numerous Bacillus sp. bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A female, Aedes aegypti mosquito obtaining a blood meal from a human host. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

animals insects

An Armed Forces of Liberia engineer cutting wood braces for the Tubmanburg Ebola treatment unit (ETU). Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A still life of castor bean, Ricinus communis containing the water soluble, highly toxic poison known as ricin. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A field epidemiologist performing a mouth swab inside the beak of a white duck, in order to carry out an infectious disease investigation. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Woman Using Toothbrush

(Sophia) Woman Using Weight Scale

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Banana

This enhanced color view of Jupiter's south pole was created using data from the JunoCam instrument on NASA's Juno spacecraft.

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Money

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Little Girl Using an Umbrella

Woman Is Using Mobile Phone

Old Man is Using a Massage Chair

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Monument 90th US Infantry Division Utah Beach Manche, France

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Female clinician in the process of conducting a blood pressure examination on a patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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The blacklegged ticks, Ixodes pacificus known for the zoonotic spirochetal bacteria, Borrelia burgdorferi. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

animals insects

A medical illustration of drug–resistant, Neisseria gonorrhoeae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A 440X photomicrograph magnification of a hematoxylin and eosin (H&E)–stained liver tissue specimen, revealed the presence of cytoarchitectural changes indicative of fatty degeneration. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A petri dish culture plate contained a growth medium of sheep blood agar (SBA), which was inoculated with Bacillus anthracis bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

bacteria science

A 100X photomicrograph magnification of photomicrograph of a hematoxylin and eosin (H&E) stained liver tissue specimen, revealed the presence of histopathologic changes indicative of fatty degeneration. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

bacteria science

A horde of unidentified bats, an animal know to be a possible carrier of the rabies virus. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

The first flag flew over Centers for Disease Control and Prevention (CDC) Headquarters in downtown Atlanta, Georgia. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A close left lateral view of a female Oriental rat flea, Xenopsylla cheopis that transmit the bacterium Yersinia pestis, the causative agent of plague. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Novel Coronavirus SARS-CoV-2–
This scanning electron microscope image shows SARS-CoV-2 (yellow)—also known as 2019-nCoV, the virus that causes COVID-19. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

MERS Coronavirus Particles–Colorized transmission electron micrograph showing particles of the Middle East respiratory syndrome coronavirus that emerged in 2012. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

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Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Novel Coronavirus SARS-CoV-2–This scanning electron microscope image shows SARS-CoV-2—also known as 2019-nCoV, the virus that causes COVID-19. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

microscope health

Novel Coronavirus SARS-CoV-2–This transmission electron microscope image shows SARS-CoV-2, the virus that causes COVID-19. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

microscope cell

Novel Coronavirus SARS-CoV-2–Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

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Plaza de Armas in Santiago, Chile

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Grandmother properly cleaning fresh, uncooked produce under a running tap. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A scientist examining the results of a hemagglutinin inhibition (HI) test. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A test tube tray containing a number of purple tipped vacutainer tubes. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A 3D image of a number of oblong–shaped, Vibrio parahaemolyticus bacteria Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

bacteria science

A doctor performing a surgical procedure on a canine patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A scientist testing a sample suspected of containing a bacterial toxin. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

electronics bacteria

Wheel Loader Used in Construction

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Public use cabins

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Laysan Duck pair on Eastern Island on Midway Atoll

Swan Lake public observation tower-3

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Swan Lake public observation tower-1

architecture wildlife

Maidford Marsh restoration using thin-layer deposition to build marsh elevation

equipment field

US Navy hovercraft transporting Marines

Blackwater National Wildlife Refuge Visitor Center

Short-tailed Albatross and Laysan Albatross chicks with decoys

Black coffee and coffee filters with coffee ground

Yellow Cat is using the telephone

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