Slovenščina 
Popolni kvadrat
Miza izmer 72 / 72 / 72 cm ima okvir, znotraj katerega je kvadratna tabla 6o / 6o cm. Tabla je sestavljena iz 21 po merah različnih kvadratov. Za 21 kvadratov je bilo uporabljenih 21 različnih slovenskih vrst lesa.
-30%
Popolni kvadrat / Perfect Square
854,00 € z DDV.
Miza izmer 72 / 72 / 72 cm ima okvir, znotraj katerega je kvadratna tabla 6o / 6o cm. Tabla je sestavljena iz 21 po merah različnih kvadratov. Za 21 kvadratov je bilo uporabljenih 21 različnih slovenskih vrst lesa.
Med njimi je tudi ksilit ali kos velenjskega lignita. Sestavo 21 različnih kvadratov v enega samega je leta 1978 dognal nizozemski matematik A. J. W. Duijvestijn s pomočjo računalnika. Stranica popolnega kvadrata meri 112 enot. Najmanjši kvadratek med 21 kvadrati meri 2 enoti, največji pa 5o enot. Dokazal je tudi, da je 21 najmanjše možno število kvadratov, ki lahko sestavijo kvadrat. Že prej je bila znana rešitev, pri kateri 24 različnih kvadratov sestavlja kvadrat. To rešitev je »peš« dognal angleški matematik Roland Sprague že leta 1939.
The frame of the table measures 72 / 72 / 72 cm within which
is mounted a square table top measuring 6o / 6o cm. The table top is made up of 21 squares of different sizes each made of different types of Slovene wood, including xylit, i.e. a piece of Velenje lignite.
is mounted a square table top measuring 6o / 6o cm. The table top is made up of 21 squares of different sizes each made of different types of Slovene wood, including xylit, i.e. a piece of Velenje lignite.
The combination of 21 squares to form one perfect square was determined in 1978 by the Dutch mathematician A. J. W. Duijvestijn with the aid of computer. The sides of the perfect square measure 112 integers. The smallest of the 21 squares measures 2 integers, the largest 5o. He also proved that 21 was the least number of squares that could be used to form a perfect squared square.
Previously, it was supposed that 24 was the least number of different squares required to make up a perfect squared
square. That solution was reached way back in 1939 by the famous English mathematician Roland Sprague.
square. That solution was reached way back in 1939 by the famous English mathematician Roland Sprague.
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