high temperature = 1, low temperature = 0...... woah, that's unexpected popularity... thanks guys		
				
			
							transmitter
							ggmate
							realistic
							digital
							antenna
							light
							phot
							recevier
							heat
					
	 
	
	
	
	Comments
		
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			so cool 
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			Also, to get around so much excessive layering, you could have another parabolic dish aimed at the receiver. 
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			It could certainly be improved, as only 4 pulses are necessary to distinguish between the numbers.