This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Reologie model n.svg Grafick znzornn reologickho modelu newtonovsk ltky Transferred from org cs transferred to Commons by User Sevela using de php CommonsHelper Original uploader was Pajs at org cs cs Pajs original upload log page cs Reologiemodeln svg Pajs bytes no znzornn reologickho modelu newtonovsk ltky Rheological