Figure 1. (a) A flexible metal chain composed of rigid iron rings; (b) a pair of handcuffs and (c) a key ring (IMAGE)

The University of Hong Kong

Figure 1. (a) A flexible metal chain composed of rigid iron rings; (b) a pair of handcuffs and (c) a key ring

Caption

Figure 1. (a) A flexible metal chain composed of rigid iron rings; (b) a pair of handcuffs and (c) a key ring.

Credit

The University of Hong Kong

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