What If The Speed of Light is Not Constant?
Season 9 Episode 19 | 15m 5s
Let’s explore how constant this speed of light fundamental constant really is.
One of the most fundamental physics facts is that the speed of light in a vacuum is constant for all observers. But can we really be sure? In fact, variable speed of light theories have long been used to try to explain everything from dark energy to gravity itself. Let’s explore how constant this fundamental constant really is.
From
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
What If The Speed of Light is Not Constant?
Season 9 Episode 19 | 15m 5s
One of the most fundamental physics facts is that the speed of light in a vacuum is constant for all observers. But can we really be sure? In fact, variable speed of light theories have long been used to try to explain everything from dark energy to gravity itself. Let’s explore how constant this fundamental constant really is.
From
Problems playing video? | Closed Captioning Feedback
Where to Watch PBS Space Time
PBS Space Time is available to stream on pbs.org and the PBS app.
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
Support for PBS provided by: