New research about how paper crumples was done in the same chunk of Harvard that produced an Ig Nobel Prize-winning study about how sheets get wrinkled. It builds on—and adds new wrinkles to—that earlier research. Siobhan Roberts reports, in the New York Times, about the paper-crumpling study: This Is the Way the Paper Crumples In a […]
Tag: math
A Drunkard’s Walk Around Nice (with a mathematical solution)
“An inebriated person in Nice (see Figure 1) takes a walk, each step in one of the four cardinal directions, north (N), south (S), east (E), and west (W). We are interested in those walks beginning at the center of the Promenade des Anglais (at the southern end of town) and ending anywhere on the […]
Renewed Interest in Octonions
“There are exactly four normed division algebras: the real numbers (R), complex numbers (C), quaternions (H), and octonions (O). The real numbers are the dependable breadwinner of the family, the complete ordered field we all rely on. The complex numbers are a slightly flashier but still respectable younger brother: not ordered, but algebraically complete. The […]
Hydroplaning Eider Ducks – the math(s)
Ducks can fly. Ducks can swim. And, unusually, they’re pretty good at something in between – viz. hydroplaning (a.k.a. ‘Skeetering’). If you’ve seen them doing it, you might have wondered about the physics (and math(s)) behind it. In which case, you are not alone … “Common eiders (Somateria mollissima) are heavy sea-ducks that spend a […]