From ScienceBlogs today:
The video is amazing...Science: because everything is better at a higher frame rate. Even no, particularly spores being fired from cow dung.
For the first time we have direct measurements of launch speeds and empirical estimates of acceleration in these fungi. Launch speeds ranged from 2 to 25 m s-1 and corresponding accelerations of 20,000 to 180,000 g propelled spores over distances of up to 2.5 meters.