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"...a few centuries of coherent humanist thought, set against a million odd years of evolved killer ape tendency. No-one's going to give you very good odds on humanism, are they?" 
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	  This is an early reference to this idea in science fiction. Although the double pane idea had been around since the 1860's, the technology for making a glazed double pane window wasn't really perfected until around 1915 and even then the "filler" was usually some sort of inert gas.
 
Here's a window onto Mercury from an observatory. 
 As far as I know, double pane windows separated by true vacuum are still being worked on, because air pressure causes them to collapse. Most seem to involve the use of transparent spacers. 
 
The vacuum between two surfaces is the Dewar flask idea. Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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 Science Fiction 
        Timeline 
	    Jetson ONE Air Races Begin, Can Air Polo Be Far Behind? 
	  
	      
	         'If you're one of those rarities who haven't attended a rocket-polo "carnage", let me tell you it's a colorful affair.' 
 
	    Will Space Stations Have Large Interior Spaces Again? 
	  
	      
	         'They filed clumsily into the battleroom, like children in a swimming pool for the first time, clinging to the handholds along the side.' 
 
	    Bipedal Robot Floats Gently While Walking 
	  
	      
	         'a walking balloon proceeded with long strides of its aluminum legs...' 
 
	    Elegant Bivouac Shelter Produces Water And Electricity 
	  
	      
	         'There was nowhere on the planet where science and technology could not provide one with a comfortable home...' 
 
	    'AI Assistants' Are Actually Less Reliable For News 
	  
	      
	         'Most men updated their PIP on New Year's Day...' 
 
	    YES!! Remote Teleoperated Robots predicted by Technovelgy! 
	  
	      
	         '...a misshapen, many-tentacled thing about twice the size of a man.' 
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