Few people have heard of it, yet many consider John Blankenbaker's KENBAK-1 to be the first commercial personal computer.

Koss introduced these headphones over 40 years ago, and they remain affordable favorites to this day.

Your Own 3D Portrait

Queen Elizabeth IIHolography was invented by Hungarian physicist Dennis Gabor in 1948. It didn't become a commercially viable technology until the introduction of the laser in 1960. Lasers enabled holographers to capture the phase of light along with its amplitude and wavelength. This additional information enables viewers to see holographic pictures as three-dimensional images.

Spatial Imaging Portraits near London is one of the leading studios specializing in holographic portraits. Their archive includes Queen Elizabeth II, pop group Oasis, and technology whiz Clive Sinclair. These three-dimensional pictures should be hung on a wall and illuminated from above for best effect. I suspect you'll have to fork out quite a bit for their top-notch work.

Litiholo kitIf your budget is smaller, several companies make affordable do-it-yourself hologram sets such as the $139 Litiholo Hologram Kit, which includes a small laser diode, twenty pieces of "instant" hologram film, plate holder, LED darkroom light, and everything else needed to create your own small images.

Holographic Portraits (Spatial Imaging Portraits)
Litiholo Hologram Kit (Liti Holographics)

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