Hmm. A few of the videos were broken for me in Firefox, but worked in Chrome. In particular, the 3D model of the plane (caption "On a real plane these control surfaces are moved by large hydraulic pistons connected to the pilot's control stick."), and the PCB design software ("PCB design is quite fun. You start off by placing the ‘footprints’ of each of the chips, and then draw in all the connections.").
Ah, looking at it, it appears that these may not have webm variants. You might want to include a static fallback image or something of the sort for videos that you don't have webm variants for; in fact, static fallback images for all of the videos would be good for people who have video disabled, don't have video support, don't have appropriate codec support, or the like.
Ah, looking at it, it appears that these may not have webm variants. You might want to include a static fallback image or something of the sort for videos that you don't have webm variants for; in fact, static fallback images for all of the videos would be good for people who have video disabled, don't have video support, don't have appropriate codec support, or the like.