A Swedish man who was arrested after trying to split atoms in his kitchen said Wednesday he was only doing it as a hobby. The 31-year-old Handl said he had tried for months to set up a nuclear reactor at home and kept a blog about his experiments, describing how he created a small meltdown on his stove. Only later did he realize it might not be legal and sent a question to Sweden's Radiation Authority, which answered by sending the police.