東海村JCO臨界事故 - Wikipedia https://ja.wikipedia.org/wiki/%E6%9D%B1%E6%B5%B7%E6%9D%91JCO%E8%87%A8%E7%95%8C%E4%BA%8B%E6%95%85
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!