Geiger counter by Kenneth Lyngaas | Aug 30, 2016 | ECO FASHION DICTIONARY | 0 comments Geiger counter Geiger counter is a detector for radioactivity, invented by the German physicist Hans Geiger (1924). The sensor is depending upon ionised particles. ECO-FASHION ENCYCLOPEDIA Refashioned and Vintage Clothing Store Share this:FacebookTwitterLinkedInPinterestTumblrMorePocketRedditEmailLike this:Like Loading... Please Comment on the story Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.