Polecamy Artykuły Nowości
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<p class="MsoNormal" style="text-align:justify"><span style="font-size:14.0pt">Wraz
z przemieszczaniem się widzimy, że kałuża się przemieszcza, miraż. jest
widoczny bowiem w pobliżu linii horyzontu. </span></p>
<p class="MsoNormal" style="text-align:justify">Fot. Magdalena Żmuda-Baranowska</p>
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Wodny spektakl
Czy jest wśród Was ktoś, kto nie słyszał o wodospadzie Niagara? Wodospad ten znajduje się na granicy Kanady i Stanów Zjednoczonych. Nie jest największy na świecie, nie niesie najwięcej wody. W czym tkwi jego magia?
Szczęśliwego 31²+27²+17²+6² roku…
W tytule występuje oczywiście liczba 2015, przedstawiona w postaci sumy czterech kwadratów liczb całkowitych. Matematycy często dla zabawy używają tego rodzaju przedstawień, składając życzenia noworoczne lub urodzinowe.