Why No One Has Measured The Speed Of Light

Summary by Krater

The video examines how the speed of light is defined and whether one-way speed of light can be measured, concluding that the one-way speed of light is unmeasurable and depends entirely on a synchronization convention.

From the video

Answers: Can we measure the one-way speed of light?

• speed of light
• special relativity
• Einstein synchronization convention
• clock synchronization
• one-way speed of light
• round-trip speed of light

What it concludes

• No one has ever measured the one-way speed of light.
• The one-way speed of light is essentially unmeasurable.
• The constancy of the speed of light in opposite directions is a convention rather than an empirically verified fact.
• Our inability to measure the one-way speed of light highlights how general relativity, quantum mechanics, space, and time are connected.