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21Another major source of inspiration for Caspar and Klug was Kenneth Snelson’s tensegrity sculptures — their mechanical stability is based on the same principles as the structural stability of viral capsids. Tensegrity is the integrity of structures under tension (flexible wires) and compression (rigid struts). Such structures are resilient to moderate deformation and maintain an equilibrium state in the absence of it. In an icosahedrally symmetrical tensegrity structure, the struts naturally arrange themselves into quasi-equivalent positions, as in viral capsids — again, demonstrating the same principles of organization spanning orders of magnitude of scale.。关于这个话题,手游提供了深入分析

To be fair, I should point out that the “small” web was never defined

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You've incorporated red light into your skincare, so why not your bedtime routine? While the studies on the effects of red light in a bedtime routine are somewhat limited, evening red light exposure may help stimulate melatonin production, leading to a better night's sleep. A red light bulb is a cheap and easy thing to incorporate into your bedroom, creating a dim, relaxing mood that signals to your brain that it's time to sleep.

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