(pieces of the article)
The initial Geiger counters used in the project were from the Reuseum, an Idaho business that recycles old technology to new homes.
Tokyo Hackerspace worked to expand the sensor network with Safecast (formerly RDTN) and Geiger Maps JP, two sites that aggregate and visualize radiation data.
The project began as a way to collect and distribute more-recent radiation information than the government was releasing, in an effort to keep Tokyo residents calm. On March 13, just a day after the explosions at Fukushima, Tokyo Hackerspace was working on getting its own radiation data. The government took almost a week to begin releasing public radiation data, and even then the data was sporadic.
See: Safecast.org
Thanks to those posting to the InSTEDD Twitter feed.
