Lifeboat Foundation

(Phys.org)—By carefully arranging many nanoblocks to form pixels on a metasurface, researchers have demonstrated that they can manipulate incoming visible light in just the right way to create a color “meta-hologram.” The new method of creating holograms has an order of magnitude higher reconstruction efficiency than similar color meta-holograms, and has applications for various types of 3D color holographic displays and achromatic planar lenses.

The researchers, Bo Wang et al., from Peking University and the National Center for Nanoscience and Technology, both in China, have published a paper on the new type of hologram in a recent issue of Nano Letters.

The pixels on the new metasurface consist of three types of silicon nanoblocks whose precise dimensions correspond to the wavelengths of three different colors: red, green, and blue. To enhance the efficiency for the blue light, two identical nanoblocks corresponding to the blue light are arranged in each pixel, along with one nanoblock for red light and one for green light.

Continue reading “High-efficiency color holograms created using a metasurface made of nanoblocks” »

Technology developments will continue to transform every field of aerospace, just as they have the over the last 100 years.

The next time your have a drink at your favorite restaurant or bar; it could be in a levitating glass.

Diehard cocktail aficionados swear by serving specific drinks in the correct glass. I wonder what they’ll make of the Levitating CUP, a cocktail glass designed to float above a portable base, in seeming defiance of gravity.

It’s the brainchild of Joe Paglione, CEO of a Chicago-based startup company called Levitating Cup. They’ve launched a Kickstarter campaign to raise the necessary capital to bring the products to market. There are cocktail glasses, dessert cups, beer cups, plates, and even pillows for optimal presentation-just in case you want to throw a full dinner party without the usual coasters and place mats.

Continue reading “Your Next Cocktail Could Defy Gravity With the Levitating CUP” »

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Gear & Gadgets —

Transistors will stop shrinking in 2021, but Moore’s law will live on.

Final semiconductor industry roadmap says the future is 3D packaging and cooling.

Estonia aims to bring 10 million people to its digital shores.

How many rogue nodes are there in Tor’s anonmity and privacy network? “Honey Onions” are a way of finding out.

Disturbing.

Munich killer David Ali Sonboly bought the gun used in his rampage on the dark web and had been planning the attack for a year.

German police said the Glock 17 pistol used by the 18-year-old to kill nine people had its serial number scratched off but appeared to have originated in Slovakia and had been reactivated.

Continue reading “Munich Teen Killer Bought Gun On Dark Web” »

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