looking through drscofield’s twitter messages of the past couple of days i noticed [@pixelq’s twitter about “watching the world”](http://twitter.com/pixelq/status/2573510628) and i had to head over to [youtube](http://www.youtube.com/watch?v=vV1YbWBSXS8) to watch this 3D internet masterpiece once more. IMHO it’s one of the most beautiful pieces of art (and it’s a pity it wasn’t on display in [basel recently](/2009/06/21/having-a-look-at-vincents-pictures)) — have a look yourself:
via [spiegel online] i came across a fascinating [youtube] video made by christoph rehage who after studying in [beijing] decided to _walk_ home from beijing to [bad nenndorf]. now, as you might have noticed, bad nenndorf is not exactly a chinese name[^1] but instead the name of a little town in norther germany, so quite a distance. in fact — and if you take a look at [christoph’s walking map][map], you quickly realize it yourself — just crossing china east to west is a bloody long walk. aside [from doing a photo blog about his experience][tlw], he also took a picture of himself everyday and assembled it into a video clip:
just stumbled across [an article on spiegel online about a new hypothesis that at the earth’s core is a giant nuclear reactor](http://www.spiegel.de/wissenschaft/natur/0,1518,553785,00.html) — the article mentions that there are _known_ natural nuclear reactors in [gabun](http://en.wikipedia.org/wiki/Gabun). googling for “natural nuclear reactors” returns [a page by the curtin university of technology](http://www.oklo.curtin.edu.au/). fascinating reading.
of course the hypothesis mentioned in the _spiegel online_ article is so far just a hypothesis, but it would be a bit ironic if the “green” geothermal water heating technology turned out to be down to nuclear energy in the first place 😉