Famous Physicists

Quantum Mechanics/Quantum Physics

Energy in Physics

Applied Physics

Black Holes, Tides, and Curved Spacetime

It's About Time

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441 Videos in Physics


A Brief History of Time
Part of the Series: Janus Favorites Collection
Errol Morris turns his camera on one of the most fascinating men in the world: the pioneering astrophysicist Stephen Hawking, afflicted by a debilitating motor neuron disease that has left him without a voice or the use of his limbs.…
I Dream of Wires
I Dream of Wires is a documentary about the rise, fall and rebirth of the machine that shaped electronic music: the modular synthesizer. The film explores the synthesizer's remarkable history, revealing how innovators like Robert Moog, working at Columbia University's…
Part of the Series: How We Got to Now
Johnson considers how the invention of the mirror gave rise to the Renaissance, how glass lenses allow us to reveal worlds within worlds and how, deep beneath the ocean, glass is essential to communication. He learns about the daring exploits…
Part of the Series: How We Got to Now
The world today is obsessed by time. Johnson boards a submarine to discover what a lack of natural light means for a sailor's working day and visits Heathrow, the world's busiest airport, to try to get timings right at air…
Silicon Run I
Part of the Series: Silicon Run Series
Silicon Run I uses live industrial footage to show the many processes necessary to manufacture microchips, including crystal growth, circuit design, and the wafer fabrication process for CMOS technology. Using close-ups of manufacturing processes and device animation, Silicon Run I…
History's Mysteries
Episode 1 of The Inexplicable Universe
Begin this journey by taking a closer look at concepts that were once unexplainable but are now better understood. You'll focus on two such former mysteries: the existence of an invisible "aether" through which light and sound were believed to…
Out of Thin Air
Part of the Series: The Mystery of Matter
One of science's great odd couples--British minister Joseph Priestley and French tax administrator Antoine Lavoisier--together discover a fantastic new gas called oxygen, overturning the reigning theory of chemistry and triggering a worldwide search for new elements. Soon caught up in…
Unruly Elements
Part of the Series: The Mystery of Matter
Over a single weekend in 1869, a young Russian chemistry professor named Dmitri Mendeleev invents the Periodic Table, bringing order to the growing gaggle of elements. But this sense of order is shattered when a Polish graduate student named Marie…
Tesla - Master of Lightning
This program recounts the life of scientist, inventor, and visionary Nikola Tesla, often remembered as more of an eccentric cult figure than an electrical engineering genius. Many of his achievements are still attributed to contemporaries Thomas Edison and Guglielmo Marconi.…
Petroapocalypse Now?
Is the oil beginning to run out? Shot over four years in 13 countries this film uncovers the myths surrounding the future of world oil supplies. The producers lift the lid on the 'Peak Oil' theory - whether oil production…
The Spooky Universe
Episode 2 of The Inexplicable Universe
Did you know that electrons have never actually been observed by scientists to this day? Or that quarks can only be studied in pairs? Or that as you travel faster or find yourself in a higher gravity, time ticks more…
The Truth About Exercise
Part of the Series: Horizon
The search for a healthy life Whether you're running, swimming, cycling, or hula hooping, we have always been told that doing regular exercise will improve our bodies and is one of the keys to a healthy and happy life. Our…
Part of the Series: How We Got to Now
Only in the last 200 years have humans learned how to make things cold. Johnson explains how ice entrepreneur Frederic Tudor made ice delivery the second biggest export business in the U.S. and visits the place where Clarence Birdseye, the…
The Transformability of Information
Episode 1 of The Science of Information
What is information? Explore the surprising answer of American mathematician Claude Shannon, who concluded that information is the ability to distinguish reliably among possible alternatives. Consider why this idea was so revolutionary, and see how it led to the concept…
Why Time Is a Mystery
Episode 1 of Mysteries of Modern Physics: Time Series
Begin your study of the physics of time with these questions: What is a clock? What does it mean to say that "time passes"? What is the "arrow of time"? Then look at the concept of entropy and how it…
Computation and Logic Gates
Episode 2 of The Science of Information
Accompany the young Claude Shannon to the Massachusetts Institute of Technology, where in 1937 he submitted a master's thesis proving that Boolean algebra could be used to simplify the unwieldy analog computing devices of the day. Drawing on Shannon's ideas,…
Part of the Series: How We Got to Now
Imagine a world without the power to capture or transmit sound. Journey with Johnson to the Arcy sur Cure caves in northern France, where he finds the first traces of the desire to record sound -- 10,000 years ago. He…
The Chemistry of Food and Drink
Episode 15 of The Nature of Matter
Explore the chemistry of food and drink from the point of view of the cook and the consumer. What are the chemicals in an egg, a piece of toast, a slice of bacon, and other typical foods? How does cooking…
Light and Quantum Physics
Part of the Series: The Physics of Light
While the terms "quantum physics" and "Theory of Relativity" are used casually every day, not many people know what they really mean. Yet these theories have had a profound impact not only on science and technology, but also on our…
The Science of Structure - Forces in Balance
Episode 2 of Understanding the World's Greatest Structures
Explore how two types of external forces: loads (forces applied to structures) and reactions (forces developed at supports, in response to applied loads): act on structures such as Kansas City's Chouteau Bridge. Also, learn how these forces are related to…