Two dimensional world
For all we know, the three dimensional world we see around us is really an illusion — one that’s actually in 2D. It’s a slightly unsettling idea, but it’s also one that physicists have been thinking about for some time. Unfortunately, until recently, a 2D universe wasn’t something we could verify. Now, thanks to an experiment recently launched at Fermi National Laboratory in Illinois…
CD diffraction
The information on a CD is stored on a very thin shiny spiral track. When light shines on these thin lines it is diffracted in all directions, the light from neighbouring lines interferes constructively when the sin of the angle=λ/d. This means that different colours of light are seen at different angles…
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Hologram Keyboard iPhone 5
Just look at those holographic images. ralphardi/YouTube Screenshot: Chris Matyszczyk/CNET New Yorkers are over-excitable. So when they see folks already lined up to buy the iPhone 5, they come over extra-giddy. Who, therefore, could blame Fox 5 New York from rushing out to interview the sad, money-grabbing…
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Hologram Design Software
A new development in virtual reality could change the way product designers work by enabling them to create physical objects out of holograms in the air. A collaboration between Microsoft’s hologram headset HoloLens and design software Autodesk Fusion 360 means that designers will be able to design 3D…
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Jem and the Holograms movie
Jem and the Holograms Yet even in this first announcement, Chu made no bones about his take on the Jem storyline, referring to it as a modern day reinvention of the beloved property. As jarring as the reinvention word might sound to fans who grew up on Jem, Chu appeared to soothe fears with his first request: That fans submit videos specifically about why they loved the original…
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Diffraction grating interference pattern
Dispersion Although we talk about an index of refraction for a particular material, that is really an average value. The index of refraction actually depends on the frequency of light (or, equivalently, the wavelength). For visible light, light of different colors means light of different wavelength. Red light has a wavelength of about 700 nm, while violet, at the other end of the…
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Japanese scientists
A Japanese professor has discovered a way of reading thoughts before a person actually voices them. The study centered on finding a connection between sound waves made by speech and the brainwaves elicited just before that. To arrive at his conclusions, Professor Toshimasa Yamazaki of the Kyushu Institute of Technology asked several groups of participants of all genders and ages…
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Hologram monitor
Basically anytime someone does something new with a hologram it grabs headlines, especially straight-out-of-sci-fi stuff like this new Star Wars -inspired phone that shows a holographic image of the person at the other end, or the prime minister of Turkey delivering a political speech as a hologram yesterday. That s a lot of fun and all, but one place where holographic research…
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