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Privește acest cerc portocaliu, în interiorul căruia se învârt în mod circular câteva puncte albe. Pare o mișcare circulară și uniformă, nu-i așa?
Dar ai idee cum se creează? Procedura e matematică pură și se construiește cu măsurători stricte. Nu circular, ci perfect liniar!
Această iluzie a fost catalogată de publicaţia „Scientific American” ca fiind una dintre cele mai bune ale anului 2014. A fost gândită pentru prima dată de Arthur Shapiro şi Alex Rose-Henig de la American University din SUA, iar imaginile ne înfăţişează 8 puncte albe ce creează impresia generală a unei mişcări circulare – dar, în realitate, mişcarea lor este perfect liniară. Cu alte cuvinte, dacă perspectiva se schimbă, obiectele care au o mişcare circulară pot fi observate mişcându-se liniar şi vice versa, scrie livebiz.ro.
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