Are Space and Time An Illusion?

Category: Physics

Space, time and the nature of reality.

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Are Space and Time An Illusion?

Space, time and the nature of reality.


Revelations and Revolutions

How we finally came to understand the science of electricity.

3/3Shock and Awe: The Story of ElectricityPhysics

How to Build a Time Machine

Time travel is not forbidden by the laws of nature, but to build a time machine, we would need to understand more about those laws and how to subvert them than we do now. And every day, science does learn more. In this film Horizon meets the scientists working on the cutting edge of discovery - men and women who may discover how to build wormholes, manipulate entangled photons or build fully functioning time crystals. In short, these scientists may enable an engineer of the future to do what we have so far been only able to imagine - to build a machine that allows us travel back and forward in time at the touch of a button. It could be you! Science fiction?

Horizon • 2018 • Physics

How do we measure distance in space?

When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine the distance of objects several billion light years away from Earth.

TED-Ed • 2014 • Physics

How did the Universe Begin?

The human race has succeeded in explaining nearly everything in this universe using mathematical formulae. Yet there is one place that remains shrouded in mystery -– black holes. Physicists believe that if they could discover a formula that explains the center of black holes, the last remaining mystery of the universe could finally be unraveled -– how the universe came into being. Their attempts have been mired by unforeseen pitfalls but with the development of superstring theory, physicists have arrived at a formula that could finally end their century-long search. What the formula described was a world beyond our wildest imaginations. This is the incredible story of physicists like Einstein, Hawking and the superstring theorists who have endeavored to solve the mystery of the origin of the universe.

2/2The Ultimate Formula • 2016 • Physics

What is Something?

What is something? On the most fundamental level thinkable, what are things? Why are things? And why do things behave the way they do?

In a Nutshell • 2015 • Physics