UPDATE: This week, consider a holiday tradition in the spirit of Gaia.
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Root Extraction Sculpture - Detail E=mc2 : For my sculpture ROOT EXTRACTION I needed some "head text" with square-root symbol. Since Albert Einstein's E=mc2 was known by me (and I like Einstein very much) I changed his formula [see photo = I also replaced c (celeritas) with v (velocity)]
Root Extraction Sculpture - Detail E=mc2