Complete the sentence about Baghdad Battery with the correct year: After the publication of a sensationalist article describing the jar in the March ______ edition of Astounding Science-Fiction, electrical engineer Willard F.
Answer and explanation
Correct answer: C. 1939
After a sensational article on the jar appeared in the March 1939 edition of Astounding Science-Fiction, the electrical engineer Willard Gray tested it. He measured the electrode potentials of the copper and iron.
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