This is supposed to be a science video with bit of a difference.
It's a narrated lap of the Diamond Light Source – the huge synchrotron in Oxfordshire, UK.
It’s worth noting the time it takes to complete this circuit is about eight minutes… The electrons below us take about two millionths of a second!
Narrating as we walk is expert Claire Pizzey, explaining what happens along the various beam lines.
After spending an hour or two filming around Diamond, we filmed the "lap video' as an after-thought.
But I think showing it without editing gives an interesting and very real impression of what it's like to walk around the huge building.
For a snappier look at Diamond - including other areas such as the experiment hutches - here's an earlier video: