A largely unsung hero of our video projects is Professor Chris Rudd, a pro-vice-chancellor at the University of Nottingham.
His help has been vital to various video series, from Test Tube to Bibledex to Periodic Table of Videos to Sixty Symbols.
He's pictured (right) with a trophy won by Test Tube a few years back.
Well, later this year Professor Rudd will be doing a 13-day charity bike ride.
He'll be riding alongside some of the other top bosses from the university.
They'll be covering the length and breadth of Britain, doing the traditional ride from John O'Groats (at the northeast tip of Scotland) to Land's End (at the southwest tip of England).
If you'd like to sponsor him, click here (and tell him you like the videos!)
The proceeds raised will go to the Sue Ryder Care Centre for the Study of Supportive, Palliative & End of Life Care based at the university.
Here's more about the ride.