Have been celebrating my newfound spare time by watching TED talks. They're pretty good. Try this one about generating 3D images from Flickr. Or this one about the intelligence of crows[1] ... or... well, try sorting the whole thing by "rated most jaw-dropping", and just dip in to your liking. It's all great stuff.
[1] The good bit is about 3 minutes in.
[1] The good bit is about 3 minutes in.