In connectomics we create a map of the mammalian brain at nano-scale. For this one must acquire image stacks of the brain of a rodent using electron microscopy. These images are of such high resolution that individual neurons (nerve cells) and their connections (synapses) are then visible.
I recently wiped a white Macbook 3.1 from 2007 to install Xubuntu. It turned out that important data was lost during this (or even during a re-installation two years ago).
Luckily, with some magic I was able to restore all lost data.
The Tornado webserver is an awesome web framework for Python. Unfortunately, configuring it for asynchronous requests can get quite confusing.
Here is a simple and minimal example, John and I created.