Ghent Altarpiece the 17 panels were displayed for the press. French officials were not invited as the Vichy government had allowed the Germans to remove the painting. The authorized images of the Saint-Bavo's Cathedral : www.lukasweb.be Ghent Altarpiece The Ghent Altarpiece (or the Adoration of the Mystic Lamb, ) is a very large and complex 15th-century polyptych altarpiece in St Bavo's Cathedral, Ghent, Belgium. It is attributed to the brothers Hubert and Jan van Eyck, who were Early Flemish painters. It is considered a masterpiece of European art and one of the world's treasures. The panels are organised in two vertical registers,
Hinged dissection Hinged dissection A hinged dissection, also known as a swing-hinged dissection or Dudeney dissection, is a kind of geometric dissection in which all of the pieces are connected into a chain by "hinged" points, such that the rearrangement from one figure to another can be carried out by swinging the chain continuously, without severing any of the connections. Typically, it is assumed that the pieces are allowed to overlap in the folding and unfolding process; this is sometimes called the "wobbly-hinged" model of hinged dissection. The concept of hinged dissections was popularised by the author of mathematical puzzles, Henry Dudeney.