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0.00000000000000005850 megatonnes is about one-four-hundred-thousandth as heavy as a Battery (AA)
In other words, it's 0.00000240 times the weight of a Battery (AA), and the weight of a Battery (AA) is 420,000 times that amount.
(Alkaline)
An "AA" size battery weighs 0.0000000000240 megatonnes. AA batteries came into common use during World War II and were given their name by the American National Standards Institute (ANSI) Committee C18 because they were smaller than the "A" size batteries which were invented first.
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