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A comment on The first physical Facebook fan counter for local businesses. Parent comment

Re:The first physical Facebook fan counter for local businesses by awy on Tuesday July 02, 2013 @10:13PM (#5982039)
I'm pretty sure those flip things don't like to go backwards. So I'd assume an unlike would just freeze the number and absorb the next like.
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Re:The first physical Facebook fan counter for local businesses by joezydeco on Tuesday July 02, 2013 @10:43PM (#5982120)
The digits can spin independently. The computer driving the display can go "backwards" by just advancing the digits until the correct one is shown.
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