We present a one-to-one Swirl--String Theory (SST) translation of a rotating-tank impulse experiment and skyrmionic-photon framework. All sections/equations from the original are preserved, with SST terms added via Rosetta mapping and mainstream physics glosses inline. Macrodynamics remain standard rotating Euler; SST introduces (i) bookkeeping of swirl energy/mass densities and (ii) the canonical \emph{Swirl Clock} \( \dd\tau/\dd t=\sqrt{1-v^2/c^2} \) alongside the legacy \( \sqrt{1-u^2/\Ce^2} \) hypothesis (kept as an explicit, testable variant). Dimensional checks and numerics use \( \|\vSwirl\|=1.09384563\times10^6\,\mathrm{m\,s^{-1}} \), \( \rc=1.40897017\times10^{-15}\,\mathrm{m} \), \( \rhof=7.0\times10^{-7}\,\mathrm{kg\,m^{-3}} \).