
We often see artwork related to the practice of law depicting a woman blindfolded and holding a set of scales. They also associated it with the Roman goddess of justice. The Romans associated the scales with trade, since measuring equal quantities of items being traded was very important to their culture. The stars that make Libra used to be viewed as the front claws of the constellation Scorpius, but the Romans saw it as its own separate group of stars and invented Libra, “the scales.” We don’t know exactly why or when Libra was pulled apart from Scorpius, but we know that it was in place by at least the second century A.D. Your gift will be matched dollar for dollar through August 3.


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Accessible Applications for Measuring Light Pollution.
