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The single-element "flat" lens. Take it with a grain of salt
On Mon, 6 Jun 2016 22:39:41 -0400, Ron C wrote:
On 6/6/2016 9:03 AM, RichA wrote: On Monday, 6 June 2016 05:14:58 UTC-4, Whisky-dave wrote: On Sunday, 5 June 2016 03:48:09 UTC+1, RichA wrote: On Saturday, 4 June 2016 19:28:08 UTC-4, Eric Stevens wrote: On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA wrote: On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote: On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote: On 6/3/2016 8:00 PM, RichA wrote: I remember when they announced this for microwaves. Whether it works is a big "IF" and I'll believe it when I see it, for ANY visual light optical device. Scientists have a way of peppering websites with all kinds of happy new inventions that NEVER see the light of day. http://www.bbc.com/news/science-environment-36438686 Haven't seen Federico in ages. Interesting work that's still in the laboratory curiosity stage. For a deeper understanding check out this publication: https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf As I suspected: it's basically monochromatic and will, presumably, suffer from chromatic aberration. -- Regards, Eric Stevens So, another story blown so out of proportion, it's basically B.S. Thanks for proving it. I think it's premature to say that. Premature to call this anything more than a theory. But there have been other "glad" hyped discoveries that amounted to nothing. Quantum dots, invisibility cloaking, But that was the media calling it invisible. We have a $5 million dollar contract with a coupld of other universities. They are NOT talking about invisible in the visible spectrum but in the IR spectrum. We know how to do it we just haven't the fabrication technigues to do it as yet. buckyballs, graphene, carbon nanotubes, Just because yuo can;t buy them in the local supermarket doesn;t mean they have no uses. https://en.wikipedia.org/wiki/Potent...rbon_nanotubes As of 2013, carbon nanotube production exceeded several thousand tons per year, used for applications in energy storage, automotive parts, boat hulls, sporting goods, water filters, thin-film electronics, coatings, actuators and electromagnetic shields.[2][3] CNT-related publications more than tripled in the prior decade, while rates of patent issuance also increased.[4] Carbon nanotubes as envisioned were to be continuous, not little bits mixed in to epoxy like fiberglas or simple carbon fiber. Remember the "space elevator" and how carbon nanotube filament was going to make it possible? Haven't heard much from that recently. Wake me up when the popular science media reports on the creation of scrith. Those were days. -- Regards, Eric Stevens |
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