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An hourglass with green sand sitting on a white surface. Temporal distance chronometer duration.
Summary
A glass of sand sitting on top of a table. A close up of a sand clock with a green base public domain stock photo.
Tags
Date
2016
Source
pixabay.com
Copyright info
This image is from Pixabay and was published prior to July 2017 under the Creative Commons CC0 1.0 Universal Public Domain Dedication license https://web.archive.org/web/20161229043156/https://pixabay.com/en/service/terms/ . In July 2017, Pixabay switched the old sitewide license for all uploads from Creative Commons CC0 to a custom license arrangement that does not meet the Creative Commons CC0 1.0 Universal Public Domain Dedication license terms.
