Image: Hookes law nanoscale

Description: (a) Schematic showing the dimensions of a polymer nanocoil spring. The coil radius, R, pitch, P, length of the spring, L, and the number of turns, N, are 2.5 μm, 2.0 μm, 13 μm, and 4, respectively. (b,c) SEM images of a polymer nanocoil spring. (b,c) are top and perspective views, respectively. (d) SEM image of a nanocoil spring supported by an additional polymer pole. (e–i) FIB images of the spring before loaded (e), stretched (f), compressed (g), bent (h), and recovered (i). All scale bars are 2 μm.
Title: Hookes law nanoscale
Credit: http://www.nature.com/articles/srep17152
Author: Shota Ushiba, Kyoko Masui, Natsuo Taguchi, Tomoki Hamano, Satoshi Kawata & Satoru Shoji
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