The shortest possible time?

The latest Sixty Symbols video deals with the smallest unit of time - the so-called Planck time.

It is calculated by dividing the unimaginably small Planck length by the unimaginably large speed of light.

The video was made in response to a viewer question.

For the full collection of answers to viewer questions you can click on this link.



And here's our earlier video about the Planck length.