A modern digital screen displaying comparative decay curves for radioactive isotopes over decades, with sharp highlighted lines for cesium 137 and strontium 90 persisting while others drop, viewed in a contemporary field monitoring tent with subtle blue ambient lighting.. Spatial layout: на темном мониторе цифровой лаборатории графические кривые распада наложены прямо поверх спутниковой карты разрушенного города.. Context markers: contemporary digital lab interface, modern survey equipment. The complete visual composition—including all primary subjects, secondary supporting elements, boundaries, and environmental contours—must sit comfortably inside the canvas with generous clean white negative space visible on all four sides (target 8-12% margins, minimum 6%). The entire visual assembly must occupy maximum 80% canvas height and 84% canvas width. Nothing touches or crosses any canvas edge. Do not crop the primary subject. Clean isolated 2D explainer composition against pure white/off-white background. hand-drawn 2D explainer cartoon illustration, confident clean black outlines, flat cel-style colors, simplified readable forms, soft minimal shading, clear focal hierarchy, clean educational YouTube illustration, no photorealism, no 3D rendering, no typography, no text, no watermarks
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