discovered this pattern on a 14th century madrassa.在一所14世纪的伊斯兰学校中 现了这个图案。 And after some analysis, concluded that this was, in fact, Penrose tiling 500 years before ...
A recent study led by Lund University in Sweden has shed new light on the ancient trade routes between Viking Norse settlers and Arctic Indigenous peoples. By examining ancient walrus DNA, the ...