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Re: [humanism-174] Lite Brite, makin' thi-ings with li-i-ight

From: Andrew S.
Sent on: Tuesday, July 29, 2014 9:02 AM
Honestly I'm less interested in invisibility cloaks than I am in other applications of nanotech.  Nano-factories that can literally grow a complex finished product, ant-sized robots for maintenance, cleaning and the like, carbon fibre batteries with massive storage capacity...there is so much potential in this field, invisibility seems rather a waste of potential.

On Mon, Jul 28, 2014 at 3:44 PM, Mark Tiborsky <[address removed]> wrote:

Dating myself with that one :)

Scientists have developed a technique of building nano materials with light, which could eventually be used for invisibility cloaks, etc-

"The key to any sort of 'invisibility' effect lies in the way light interacts with a material. When light hits a surface, it is either absorbed or reflected, which is what enables us to see objects. However, by engineering materials at the nanoscale, it is possible to produce 'metamaterials': materials which can control the way in which light interacts with them. Light reflected by a metamaterial is refracted in the 'wrong' way, potentially rendering objects invisible, or making them appear as something else."

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