I've uploaded three videos today - a mixed bag as usual.
First was this astronomy video (Deep Sky Videos) all about a supernova and the galaxy M101.
Then a quickie for Numberphile about Pythagorean Primes.
And lastly for Test Tube, this in-depth interview with James Clewett about the struggles of finishing a PhD.
For more from James, don't miss the video: Confessions of a Tetris Addict.