Jabach Altarpiece small devil flees in the far background. The right panel shows two standing musicians. The right one, with the drum, is perhaps a self-portrait. Their meaning has not been explained: they could be a further element of mockery against Job, or, instead, an attempt to console him through music. <br> Jabach Altarpiece The Jabach Altarpiece is an oil on lime tree panel painting by German Renaissance artist Albrecht Dürer, executed around 1503–1504. Originally a triptych, only the side panels are now preserved: the right picture, measuring 96×54 cm, is housed in the Wallraf-Richartz Museum of Cologne; the left picture, measuring
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.