Tokyo-based photographer and filmmaker Adrian Storey, who blogs at Uchujin, made a documentary on Safecast that reached the semi-finals of the Focus Forward documentary competition. The brief for the competition calls for three-minute films about "exceptional people and world-changing ideas that are impacting the course of human development."

Yep, sounds like Safecast. Safecast is a non-profit organization that collects precise radiation readings and shares them via their website and mobile app. We reported on its collaboration with Tokyo HackerSpace a year ago and recently featured its iOS app.

Brief, informative, and shot with a cinematographic eye, the short is well worth a watch. Safecast's founders explain in a simple, direct way why they came up with the idea of collecting radiation measurements globally and how they got the ball rolling.

Cast a vote if you like what you see and check out the other documentaries that may interest you. The film is up for the Audience Choice Award, and voting closes on Dec. 2o.