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physics
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Bernoulli model of gas pressure illustration of Robert Hooke's law of elasticity of materials Laser Interferometer Space Antenna (LISA) curved space-time temperature scales Brownian particle Electromagnetic radiation Diffraction grating Millikan oil-drop experiment
Robert Millikan's method for measuring the charge of an electron
For Students
Diffraction grating
physics summary
Quizzes
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
Physics and Natural Law
Italian physicist Guglielmo Marconi at work in the wireless room of his yacht Electra, c. 1920.
All About Physics Quiz
atom. Orange and green illustration of protons and neutrons creating the nucleus of an atom.
Another Physics Quiz
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
How Much Do You Know About Physics?
Related Questions
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What's the Difference Between Speed and Velocity?
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?
Lab mouse using an optogenetics device
Optogenetics: Controlling the Brain with Light
Above the clouds 130 nautical miles below, astronaut Mark C. Lee floats freely without tethers as he tests the new Simplified Aid for Extravehicular Activity (EVA) Spacewalk Rescue (SAFER) system, Sept. 16, 1994. Space Shuttle Discovery, STS-64
Gravity: From Apples to the Universe
Albert Einstein
100 Years of General Relativity
Discover
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Why Is Ireland Two Countries?
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Timeline of the American Civil Rights Movement
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Where Is “Old Zealand”?
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7 of the World’s Most Dangerous Festivals
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10 of the World’s Most Dangerous Fish
Battle of the Alamo from "Texas: An Epitome of Texas History from the Filibustering and Revolutionary Eras to the Independence of the Republic, 1897. Texas Revolution, Texas revolt, Texas independence, Texas history.
6 Wars of Independence
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physics: Related Content

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News •

Thought To Be Impossible: Scientists Break Century-Old Physics Barrier • Apr. 16, 2025, 2:03 AM ET (SciTechDaily)
Scientists release plans for an even bigger atom smasher to address the mysteries of physics • Apr. 2, 2025, 6:27 AM ET (NBC)

Photos and Videos

Bernoulli model of gas pressure
illustration of Robert Hooke's law of elasticity of materials
Laser Interferometer Space Antenna (LISA)
curved space-time
temperature scales
Brownian particle
Electromagnetic radiation
Diffraction grating
Millikan oil-drop experiment
transistor
Robert Millikan's method for measuring the charge of an electron
quantum mechanics and probability
Know about the common misconceptions in physics like how gravity affects light, the shape of the earth, and measuring velocity in special relativity
See All Videos and Images →

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Key People

Charles H. Bennett
Charles H. Bennett
American physicist
John F. Clauser
John F. Clauser
American physicist
Pierre Agostini
Pierre Agostini
French physicist
Barry C. Barish
American physicist
Edward Bouchet
Edward Alexander Bouchet
American physicist
Donna Strickland
Canadian physicist
Rafi Bistritzer
Rafi Bistritzer
Israeli physicist
Allan MacDonald
Canadian-American physicist
James Peebles
American physicist
Arthur Ashkin
American physicist
Rainer Weiss
American physicist
Abu’l-Barakat al-Baghdadi
Arab physician and philosopher [1080?–1164/1165?]
Pablo Jarillo-Herrero
Spanish physicist
Anton Zeilinger
Anton Zeilinger
Austrian quantum physicist
Gérard Mourou
French physicist
Giorgio Parisi
Italian physicist
Valerie Thomas
Valerie Thomas
American scientist and inventor
Kip Thorne
American physicist
Anne L'Huillier
Anne L’Huillier
French physicist
Ferenc Krausz
Ferenc Krausz
Hungarian-born Austrian physicist

Related Quizzes and Features

Quiz
Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
Physics and Natural Law
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
How Much Do You Know About Physics?
atom. Orange and green illustration of protons and neutrons creating the nucleus of an atom.
Another Physics Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Italian physicist Guglielmo Marconi at work in the wireless room of his yacht Electra, c. 1920.
All About Physics Quiz
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
36 Questions from Britannica’s Most Popular Science Quizzes
Elementary Particles series. Interplay of abstract fractal forms on the subject of nuclear physics, science and graphic design. Quantum wave, quantum mechanics
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Highway Night Traffic Portland, drive, driving, car, automobile.
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