Hanne Kekkonen
We are all familiar with the Euclidean geometry on a flat plane.
Living on a globe we also see how the spherical geometry differs
from the Euclidean one. But there is also a third, hyperbolic,
geometry. For hundreds of years mathematicians tried to show that
anything like hyperbolic space was an impossibility. After the
existence of it was accepted in the nineteenth century many believed
that it wasn't possible to model such a structure. However, in 1997
Dr. Daina Taimina realised that hyperbolic surfaces can be
crocheted. These earrings consist of three hyperbolic surfaces with
different constant negative curvature, the smallest ones having the
largest curvature. They are made from gold shaded embroidery thread
with a 0.8mm lace crochet hook.