Look carefully at this photo.
The green display is designed to show the amount of radiation along Japan's newly-opened Joban nukeway. Readings on 17 Feb 2015 were 5.5µSv/h (microsieverts per hour). Notice anything odd?
No higher reading than 9.9 can be displayed. Convenient?
Maybe the 5.5 pictured is actually 25.5 or even 95.5µSv/h -- the display has no 10s or 100s columns ... Good design?
The green display is designed to show the amount of radiation along Japan's newly-opened Joban nukeway. Readings on 17 Feb 2015 were 5.5µSv/h (microsieverts per hour). Notice anything odd?
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| Radiation on Japan's Joban Expressway (Asahi Shimbun file photo) |
No higher reading than 9.9 can be displayed. Convenient?
Maybe the 5.5 pictured is actually 25.5 or even 95.5µSv/h -- the display has no 10s or 100s columns ... Good design?