The shapes and patterns of spider webs are endlessly fascinating. This is a classic spider web wrapped around a stalk of Purpletop Vervain. I'm not sure which I like better: the web or the dark tones of twilight. You? :)
Quasicrystals have teased and intrigued scientists for three decades. Now, this already strange group of materials has a new member: a bizarre, two-dimensional quasicrystal made from self-assembling organic molecules.