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Sometimes these materials are used to enhance more conventional robots. One team ofresearchers, for example, has developed a different kind of hydrogel that becomes stickywhen exposed to a low-voltage zap of electricity and then stops being sticky when theelectricity is switched off. This putty-like gel can be pasted right onto the feet or wheels of arobot. When the robot wants to climb a sheer wall or scoot across the ceiling, it can activateits sticky feet with a few volts. Once it is back on a flat surface again, the robot turns off theadhesive like a light switch.Robots that are wholly or partly made of gloop aren’t the future that I was promised in sciencefiction. But it’s definitely the future I want. I’m especially keen on the nanometre-scale “softrobots” that could one day swim through our bodies. Metin Sitti, a director at the Max PlanckInstitute for Intelligent Systems in Germany, worked with colleagues to prototype these tiny,synthetic beasts using various stretchy materials, such as simple rubber, and seeding themwith magnetic microparticles. They are assembled into a finished shape by applying magneticfields. The results look like flowers or geometric shapes made from Tinkertoy ball and stickmodelling kits. They’re guided through tubes of fluid using magnets, and can even stop andcling to the sides of a tube.SubQuestion No : 16Q.16Which one of the following statements, if true, would be the most direct extension ofthe arguments in the passage?

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Term
Spring
Professor
N/A
Tags
universal grammar, The Unconscious,

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