Curiously, books in Iowa have more "gravity" effect in them than even TIME suspected. In fact, due to gravity effects in the State, a) the same book would weigh less in Des Moines than it would in the town of Anita, 50 miles (80 km) to the west. b) a quick way to lose weight is to travel from the north-central Iowa town of Blairsburg to the nearby town of Wellsburg.
Iowa Science Teachers Journal
© Copyright 1979 by the Iowa Academy of Science
Carmichael, Robert S.
"The Earth's Gravity Field,"
Iowa Science Teachers Journal: Vol. 16
, Article 3.
Available at: https://scholarworks.uni.edu/istj/vol16/iss3/3