Article 4J1TJ Mockup of giant TV screen that shows what was behind it months earlier

Mockup of giant TV screen that shows what was behind it months earlier

by
Rob Beschizza
from on (#4J1TJ)
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Bob Shaw's "Light of Other Days", nominated for a Hugo award in 1967, presented the concept of slow glass: a material that takes light days, months or even years to pass through. A pane set in front of a lake for a decade, for example, could then be sold to city-dwellers wanting a nicer view. The gorgeous vista would last only 10 years, obviously, then become a delayed view of the slow glass being transported from the lake, shipped to the SlowGlass showroom, purchased and installed, before, finally, becoming a view of the bare wall behind it--as it looked ten years earlier. A more mundane applications might be to use 12-hour slow glass to provide offices and malls with permanent daylight.

Such a material still can't be bought at Home Depot, but this CGI mockup shows how we might fake it: all we'd need is a big LCD display, a camera, and lots of storage to hold months or years of HD footage.

Visualization of an outdoor installation. The monitor shows what's behind it, with 6 months delay.

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