【實用工具app】Urnfield Clock|最夯免費app

This digital clock features number notation as used by the central European Urnfield culture of around 1200 BC, possibly related to Germanic runes. It is a base-5 or quinary numeral system with just two different characters to represent numbers.More information about Urnfield culture numerals is available here:http://en.wikipedia.org/wiki/Urnfield_culture_numerals

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