![cover image of Benny Blu--Zeit](https://img1.od-cdn.com/ImageType-400/6869-1/695/BE4/33/{695BE433-993C-4F54-9E1B-6FC95C91F2C1}Img400.jpg)
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Ewig und doch vergänglich - Benny Blu löst mit dir die Rätsel der Zeit. Was ist Zeit? Wie wird sie gemessen? Wie entstehen die Jahreszeiten? Und welche Uhren und Kalender gibt es?