germ theory

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Introduction References & Edit History Related Topics

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Plague bacteria

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close up of 3d microscopic blue bacteria

What Was Life Like Before We Knew About Germs?

Aspirin pills.

7 Drugs that Changed the World

Photo of the antacid Tums

How Do Antacids Work?

Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)

How Fast Is the Universe Expanding?

People wearing surgical masks (also called face mask or medical masks or safety masks) walk through the city center of Milan, Italy on Feb. 23, 2020. Coronavirus disease COVID-19 pandemic

How Do Face Masks Control the Spread of Disease?

Discover

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

Nazi Germany, Nazi SS troops marching with victory standards at the Party Day rally in Nuremberg, Germany, 1933. (Schutzstaffel, Nazi Party, Nurnberg)

Why Was Nazi Germany Called the Third Reich?

Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.

Will Light-Speed Space Travel Ever Be Possible?

Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

What is Holy Week?

Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)

The Seven Sacraments of the Roman Catholic church

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

What Do Eggs Have to Do with Easter?

germ theory: Media

medicine

Videos

hand sanitizer

hand sanitizer

How hand sanitizers work.

Video: © American Chemical Society (A Britannica Publishing Partner)

Images

Plague bacteria

Plague bacteria

The infectious bacterium Yersinia pestis is the cause of plague. The bacteria...

National Institute of Allergy and Infectious Diseases (NIAID)/Centers for Disease Control and Prevention (CDC)

Louis Pasteur

Louis Pasteur

French chemist and microbiologist Louis Pasteur.

Archives Photographiques, Paris

Joseph Lister

Joseph Lister

English surgeon Joseph Lister, 1857.

Courtesy of the Wellcome Trustees, London

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