To make it run on Linux:
google-chrome --enable-webgl --ignore-gpu-blacklist
google-chrome --enable-webgl --ignore-gpu-blacklist
Like most WebGL apps, though, it appears to load (or maybe preprocess) a ton of data. And it has no feedback. So I watched a blank page for a while, browsed in a different tab, and came back later to see the pretty brain.
WebGL demo writers (and this applies to pretty much all of you): please learn how to provide UI feedback on loading. The enormous client data set you have locally doesn't work as well across the internet, and the default state of your app is horribly broken without it.