Inexplicable Physics

The Great Courses
Show More

Related videos

Inexplicable Life
Join Professor Tyson on a fascinating investigation of the possible origins of life in the universe. Why was Jupiter believed to be a good environment for life in the 17th century? Why is there only one single "tree of life" on Earth instead of multiple ones? Could life have come…
History's Mysteries
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 travel and the orbit of Mercury, which seemed to violate…
The End of Time
Peter Mettler's enthralling, mind-bending new documentary is a tour de force that challenges our conception of time - and perhaps the very fabric of our existence. With stunning cinematography and a knack for capturing astonishing moments, The End of Time travels the planet - from the CERN particle accelerator outside…
Why Time Is a Mystery
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 holds the key to the one-way direction of time in…
Time Travel
Use a simple analogy to understand how a time machine might work. Unlike movie scenarios featuring dematerializing and rematerializing, a real time machine would be a spaceship that moves through all the intervening points between two locations in spacetime. Also explore paradoxes of time travel.
Auroras—Light Shows on the Edge of Space
Investigate a stunning atmospheric phenomenon caused by events both inside Earth and in outer space. The shimmering colors of auroras result when particles from the solar wind are accelerated in Earth's magnetic field, which is generated by Earth's churning iron core.
Alien Planets Revealed
Part of the Series: NOVA
It's a golden age for planet hunters: NASA's Kepler mission has identified more than 3,500 potential planets orbiting stars beyond our Sun. Some of them, like a planet called Kepler-22b, might even be able to harbor life. How did we come upon this distant planet? Combining startling animation with input…
Final Frontier? - Guide to the Universe
Part of the Series: Horizon
Over the last 40 years, Horizon has joined scientists as they have probed the secrets of the universe - from the origin of dark matter to the nature of gravity and even stealing a glimpse into the private life of a black hole. Dallas Campbell delves into the Horizon archive…
Rise of the Drones
Part of the Series: NOVA
Drones. These unmanned flying robots-some as large as jumbo jets, others as small as birds-do things straight out of science fiction. Much of what it takes to get these robotic airplanes to fly, sense, and kill has remained secret. But now, with rare access to drone engineers and those who…
Ancient Computer
Part of the Series: NOVA
In 1900, a storm blew a boatload of sponge divers off course and forced them to take shelter by the tiny Mediterranean island of Antikythera. Diving the next day, they discovered a 2,000 year-old Greek shipwreck. Among the ship's cargo they hauled up was an unimpressive green lump of corroded…
Making Stuff Faster
Part of the Series: NOVA - Making More Stuff
Ever since humans stood on two feet we have had the basic urge to go faster. But are there physical limits to how fast we can go? David Pogue wants to find out, and in Making Stuff Faster, he'll investigate everything from electric muscle cars and the America's cup sailboat…
Elements
PBS
The forces of nature make Earth a restless planet, but they also turned our ball of rock into a home for life. How did our planet's ingredients, the chemical elements, come together and take that first crucial step from barren rock to a living world?