In the 1970s Intervision Song Contest, the Communist equivalent to Eurovision, viewers would vote by turning on lights at a given moment; power plants would measure the load to help determine the winner.
from Crazy Facts http://ift.tt/1xetEon
In the 1970s Intervision Song Contest, the Communist equivalent to Eurovision, viewers would vote by turning on lights at a given moment; power plants would measure the load to help determine the winner.
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