mean
curvature
.1
.01
.001
.0001
distance
1
10
100
Mean curvature nearly
vanishes
at the rim.
Ébut not in the
buckled region
Center force
creates
precise
geometrical
response
at
distant rim.
Tao Liang
and T. Witten
d-cone from pushing sheet into container:
rim structure
puzzle
experimentB`