The spiral pattern of an Aloe polyphylla plant at the University of California Botanical Garden. Stan Shebs via Wikicommons under CC BY-SA 3.0 To the untrained eye, plants may appear to grow rather ...
Honeycombs, some bathroom floors and designs by artist M.C. Escher have something in common: they are composed of repeating patterns of the same shape without any overlaps or gaps. This type of ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback