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Breaking World News
How this guy makes Amazing Mechanical Mirrors
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<blockquote data-quote="Kairos" data-source="post: 183952" data-attributes="member: 10263"><p>In the novel Ringworld, Niven described a kind of "sunflower" growing in the inhabited portion of the megastructure that had mirror-reflective petals. If it detected any animals in it's field of vision, it would move the petals to reflect the sunlight towards the creature. When you have a huge patch of them, it would become a deadly blast of sunlight.</p><p></p><p>So some of the hominids living there would build structures with angled rooftops that created a field of devastation in a particular direction that attackers of other hominid groups could not penetrate.</p><p></p><p>It was a cool idea. To make mechanical version of such a plant, you'd just need little servos to control the mirrors, some kind of laser ranging and motion detection, and a micro-controller to compute the angle of each mirror to put the sunrays on the target.</p><p></p><p>It obviously wouldn't need power, since you could embed a solar cell in every nth panel, and have the microcontroller direct that to maximize power. It's not like you need a battery or anything, since it would not work at night.</p></blockquote><p></p>
[QUOTE="Kairos, post: 183952, member: 10263"] In the novel Ringworld, Niven described a kind of "sunflower" growing in the inhabited portion of the megastructure that had mirror-reflective petals. If it detected any animals in it's field of vision, it would move the petals to reflect the sunlight towards the creature. When you have a huge patch of them, it would become a deadly blast of sunlight. So some of the hominids living there would build structures with angled rooftops that created a field of devastation in a particular direction that attackers of other hominid groups could not penetrate. It was a cool idea. To make mechanical version of such a plant, you'd just need little servos to control the mirrors, some kind of laser ranging and motion detection, and a micro-controller to compute the angle of each mirror to put the sunrays on the target. It obviously wouldn't need power, since you could embed a solar cell in every nth panel, and have the microcontroller direct that to maximize power. It's not like you need a battery or anything, since it would not work at night. [/QUOTE]
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