Wavelength order
Electromagnetic Waves have different wavelengths When you listen to the radio, watch TV, or cook dinner in a microwave oven, you are using electromagnetic waves. Radio waves, television waves, and microwaves are all types of electromagnetic waves. They differ from each other in wavelength. Wavelength is the distance between one wave crest to the next. Waves in the electromagnetic…
Types of Holography
What is a hologram? A hologram is a recording in a two- or three-dimensional medium of the interference pattern formed when a point source of light (the reference beam) of fixed wavelength encounters light of the same fixed wavelength arriving from an object (the object beam). When the hologram is illuminated…
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Smartphone hologram projector
It ll take you just five minutes to make your very own hologram projector. You ll wow your friends and impress your co-workers, and all you need is a few basic office supplies, an old CD case and a smartphone. YouTube user Mrwhosetheboss used graph paper, a CD case, tape, a pen, scissors, a knife and his smartphone to rig up a device that, in the light, just looks like a pyramid…
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Hologram laser projector
Holograms have been a dream ever since Princess Leia appeared as a floating image in Star Wars. Finally it looks like we re near to reaching real holograms thanks to the Aerial Burton plasma laser display. Aerial Burton has used a plasma laser to float a 3D image in mid-air. At the moment it s very rudimentary stuff but it shows that light can be viewed without the need to bounce…
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Hologram system
Sure, watching Michael Jackson strut his stuff once more is cool, but currently holograms are the preserve of the rich and richer. Fortunately, though, a team at MIT is trying to build a glasses-free 3D projection system that should be affordable enough to use at home. The system uses two liquid crystal modulators to project subtly different images—eight, in their current prototype—which…
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CNN hologram technology
CNN s holographic election coverage is fancy pantsy, but how did they manage to send 3D 360 degree footage of virtual correspondent Jessica Yellin from Chicago all the way to the station s election center in NY? As Arthur C. Clarke says, Magic. A magic made possible from technology Vizrt and SportVu with the help of forty-four HD cameras and twenty computers. Here are the details…
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What is grating element?
How to find LASER wavelength using a Diffraction Grating in the
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Grating Spectrometers
Privileged visitors to the ESTEC clean rooms during the final integration of XMM-Newton noticed that after the installation of the flight-model mirror modules, there appeared to be something missing. Only two of the three mirror modules project out of the support platform. The lack of symmetry stems from the fact that only two of the mirror modules are equipped at their exit with…
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How to Make Holograms for Fake ID?
For this project, you will need the following items: ID/whatever card - Get out your old Joe Schmoe, INC. identification card, library card, or whatever it is you feel you need to have an upgraded duplicate of. Photoshop - or any other equivalent software - however, I m gonna be using photoshop so it will be easier to follow along if you are using it as well. Scanner - Good quality…
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