Andrew Walker's hobby of hunting radioactive objects began after watching an online video. He uses a Geiger counter to detect radioactivity in various places, even discovering elevated readings in unexpected locations like a fast-food restaurant parking lot. Despite being a cinema projectionist and filmmaker by profession, Walker shares his intriguing finds on social media platforms to connect with others interested in the subject.
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by Chris Barani... 於 www.bbc.com 04-05-2018
https://www.bbc.com/future/article/20180405-why-people-collect-radioactive-objects深入探究